[0001] This application relates generally to hearing aid, and more specifically, to binaural
hearing system that includes a first hearing aid and a second hearing aid.
BACKGROUND
[0002] A binaural hearing system generally includes a first hearing aid for wear at a first
ear of a user, and a second hearing aid for wear at a second ear of the user. The
binaural hearing system may be configured to address a hearing loss of the user.
[0003] Applicant of the subject application determines that it would be desirable to have
a binaural hearing system that is capable of processing phone conversation signal,
such as when the user of the binaural hearing system picks up a phone. Applicant of
the subject application also determines that it would be desirable for such binaural
hearing system to continue providing acoustic signal representing environmental sound
to the user even when the user is engaging with a phone conversation.
SUMMARY
[0004] In accordance with some embodiments, a hearing system includes a first hearing aid,
the first hearing aid includes: a first microphone for converting sound into electrical
signals; a processor communicatively coupled to the first microphone, wherein the
processor is configured to provide an output based on the electrical signals from
the first microphone; a first speaker communicatively coupled to the processor, and
is configured to provide an acoustic signal based on the output provided by the processor;
and a first communication device configured to receive a control signal transmitted
from a second hearing aid in response to a reception or detection of a signal associated
with a phone by the second hearing aid; wherein the first hearing aid is configured
to reduce a gain of the first hearing aid to a non-zero value in response to the control
signal received from the second hearing aid.
[0005] It is an important advantage of the present invention that a user is able to be alert
and aware of his/her surroundings while speaking on the phone, thereby providing safety
to the user, for example while walking in public. Further, a user may be allowed to
perform multiple tasks that involve the user being aware of the surrounding environment
while speaking on the phone, which increases the user friendliness of the hearing
system.
[0006] In one or more embodiments, the first hearing aid is configured to be switched to
or operate in an omnidirectional mode in response to the control signal.
[0007] In one or more embodiments, the first microphone of the first hearing aid remains
on after the first communication device of the first hearing aid receives the control
signal from the second hearing aid.
[0008] In one or more embodiments, the first speaker of the first hearing aid is configured
to provide the acoustic signal based on the output provided by the processor regardless
of whether the first communication device of the first hearing aid receives the control
signal from the second hearing aid or not.
[0009] In one or more embodiments, the first hearing aid is configured to provide acoustic
signals representative of phone signals from the phone in response to the control
signal received from the second hearing aid.
[0010] In one or more embodiments, the hearing system further includes the second hearing
aid, wherein in response to the signal associated with the phone, only the second
hearing aid, and not the first hearing aid, provides acoustic signals representative
of phone signals from the phone.
[0011] In one or more embodiments, an amount of gain reduction is adjustable. For example,
the amount of gain reduction may be adjustable by a user using a control at one or
both of the first and second hearing aids. In another example, the amount of gain
reduction may be adjustable by a technician during a hearing aid fitting process.
In such cases, the amount of gain reduction may be adjustable and preset to a certain
value.
[0012] The amount of gain reduction may be in the range from 10% to 90%, such as from 25%
to 75%.
[0013] In one or more embodiments, the hearing system further includes a control for allowing
a user of the hearing system to adjust an amount of gain reduction of the first hearing
aid.
[0014] In one or more embodiments, an amount of gain reduction of the first hearing aid
is based on a preset user preference.
[0015] In one or more embodiments, an amount of gain reduction of the first hearing aid
is based on a hearing loss of a user of the hearing system.
[0016] In one or more embodiments, an amount of gain reduction of the first hearing aid
is dependent on an environment in which the hearing system is operated.
[0017] In one or more embodiments, an amount of gain reduction of the first hearing aid
is frequency dependent. For example, a first amount of gain reduction, e.g. the range
from 10% to 90%, may be applied in a first frequency band and a second amount of gain
reduction, such as in the range from 10% to 90%, may be applied in a second frequency
band. The first amount of gain reduction may be different from the second amount of
gain reduction. Thereby, the gain reduction may be tailored to a specific phone situation.
For example it may be desirable to be able to react on speech while background noise
should be substantially eliminated.
[0018] In one or more embodiments, the first communication device comprises a wire for receiving
the control signal.
[0019] In one or more embodiments, the first communication device comprises a wireless component
for receiving the control signal.
[0020] In one or more embodiments, the hearing system further includes the second hearing
aid, the second hearing aid comprising: a component for receiving or detecting the
signal associated with the phone; and a second communication device communicatively
coupled to the component, wherein the second communication device is configured to
transmit the control signal to the first hearing aid in response to the signal received
or detected by the component.
[0021] In one or more embodiments, the component comprises a sensor for detecting a magnetic
field as the signal that is associated with the phone.
[0022] In one or more embodiments, the magnetic field is from a permanent magnet.
[0023] In one or more embodiments, the magnetic field is from an electro-magnetic coil.
[0024] In one or more embodiments, the component comprises a signal receiver configured
to receive radiofrequency signal from the phone.
[0025] In one or more embodiments, the component comprises a signal receiver configured
to receive Bluetooth signal from the phone.
[0026] In one or more embodiments, the second hearing aid is configured to operate in a
first mode and in a second mode, the second hearing aid having a second speaker; wherein
in the first mode, the second speaker of the second hearing aid provides an acoustic
signal that represents environmental sound; and wherein in the second mode, the second
speaker of the second hearing aid provides an acoustic signal that represents phone
signal.
[0027] In one or more embodiments, when in the second mode, the acoustic signal that represents
the phone signal is derived from an acoustic phone signal provided from a speaker
of the phone.
[0028] In one or more embodiments, when in the second mode, the acoustic signal that represents
the phone signal is derived from an induction signal from the phone.
[0029] In one or more embodiments, the first hearing aid is also configured to increase
the gain of the first hearing aid in response to an additional control signal transmitted
by the second hearing aid, the additional control signal transmitted by the second
hearing aid in response to a lack of reception or detection of the signal associated
with the phone.
[0030] In one or more embodiments, a hearing aid fitting system for fitting the hearing
system to compensate for a hearing loss of a user includes a user interface for receiving
an input to set an amount of gain reduction of the first hearing aid.
[0031] In accordance with other embodiments, a hearing system includes a first hearing aid,
the first hearing aid includes: a first microphone for converting sound into electrical
signals; a component for receiving or detecting a signal associated with a phone;
a processor communicatively coupled to the first microphone, wherein the processor
is configured to provide an output based on the electrical signals from the first
microphone; a first speaker communicatively coupled to the processor, and is configured
to provide an acoustic signal based on the output provided by the processor; and a
first communication device communicatively coupled to the component, wherein the communication
device is configured to transmit a control signal to a second hearing aid to reduce
a gain of the second hearing aid to a non-zero value in response to the signal received
or detected by the component.
[0032] In one or more embodiments, the hearing system further includes the second hearing
aid, wherein the second hearing aid comprises: a second communication device configured
to receive the control signal transmitted from the first communication device of the
first hearing aid; and circuitry for reducing the gain of the second hearing aid in
response to the control signal.
[0033] In one or more embodiments, the control signal also switches the second hearing aid
into an omnidirectional mode.
[0034] In one or more embodiments, the hearing system further includes the second hearing
aid, wherein the second hearing aid comprises: a second communication device configured
to receive the control signal transmitted from the first communication device of the
first hearing aid; and circuitry for reducing the gain of the second hearing aid in
response to the control signal, and for switching the second hearing aid into the
omnidirectional mode in response to the control signal.
[0035] In one or more embodiments, the hearing system further includes the second hearing
aid, the second hearing aid comprising a second microphone and a second speaker, wherein
the second microphone of the second hearing aid remains on after the second hearing
aid receives the control signal from the first hearing aid.
[0036] In one or more embodiments, the hearing system further includes the second hearing
aid, the second hearing aid comprising a second microphone and a second speaker, wherein
the second speaker of the second hearing aid is configured to provide an acoustic
signal based on an output from the second microphone regardless of whether the second
hearing aid receives the control signal from the first hearing aid or not.
[0037] In one or more embodiments, the hearing system further includes the second hearing
aid, wherein the second hearing aid is configured to provide acoustic signals representative
of phone signals from the phone in response to the control signal received from the
first hearing aid.
[0038] In one or more embodiments, the hearing system further includes the second hearing
aid, wherein in response to the signal associated with the phone, only the first hearing
aid, and not the second hearing aid, provides acoustic signals representative of phone
signals from the phone.
[0039] In one or more embodiments, an amount of gain reduction of the second hearing aid
is adjustable. For example, the amount of gain reduction may be adjustable by a user
using a control at one or both of the first and second hearing aids. In another example,
the amount of gain reduction may be adjustable by a technician during a hearing aid
fitting process. In such cases, the amount of gain reduction may be adjustable and
preset to a certain value.
[0040] In one or more embodiments, the hearing system further includes a control for allowing
a user of the hearing system to adjust an amount of gain reduction of the second hearing
aid.
[0041] In one or more embodiments, an amount of gain reduction of the second hearing aid
is based on a preset user preference.
[0042] In one or more embodiments, an amount of gain reduction of the second hearing aid
is based on a hearing loss of a user of the hearing system.
[0043] In one or more embodiments, an amount of gain reduction of the second hearing aid
is dependent on an environment in which the hearing system is operated.
[0044] In one or more embodiments, an amount of gain reduction of the second hearing aid
is frequency dependent.
[0045] In one or more embodiments, the component comprises a sensor for detecting a magnetic
field as the signal that is associated with the phone.
[0046] In one or more embodiments, the magnetic field is from a permanent magnet.
[0047] In one or more embodiments, the magnetic field is from an electro-magnetic coil.
[0048] In one or more embodiments, the component comprises a signal receiver configured
to receive radiofrequency signal from the phone.
[0049] In one or more embodiments, the component comprises a signal receiver configured
to receive Bluetooth signal from the phone.
[0050] In one or more embodiments, the first communication device comprises a wire for transmitting
the control signal.
[0051] In one or more embodiments, the first communication device comprises a wireless component
for transmitting the control signal.
[0052] In one or more embodiments, the first hearing aid is configured to operate in a first
mode and in a second mode; wherein in the first mode, the first speaker provides the
acoustic signal that represents environmental sound; and wherein in the second mode,
the first speaker provides an output that represents phone signal.
[0053] In one or more embodiments, when in the second mode, the output that represents the
phone signal is derived from an acoustic phone signal provided from a speaker of the
phone.
[0054] In one or more embodiments, when in the second mode, the output that represents the
phone signal is derived from an induction signal from the phone.
[0055] In one or more embodiments, the first communication device of the first hearing aid
is also configured to transmit an additional control signal to the second hearing
aid to increase the gain of the second hearing aid in response to a lack of reception
or detection of the signal associated with the phone.
[0056] In one or more embodiments, a hearing aid fitting system for fitting the hearing
system to compensate for a hearing loss of a user includes a user interface for receiving
an input to set an amount of gain reduction of the second hearing aid.
[0057] In accordance with other embodiments, a hearing system includes a first hearing aid,
the first hearing aid comprising: a first microphone for converting sound into electrical
signals; a processor communicatively coupled to the first microphone, wherein the
processor is configured to provide an output based on the electrical signals from
the first microphone; a first speaker communicatively coupled to the processor, and
is configured to provide an acoustic signal based on the output provided by the processor;
and a first communication device configured to receive a control signal transmitted
from a second hearing aid in response to a lack of reception or detection of a signal
associated with a phone; wherein the first hearing aid is configured to increase a
gain of the first hearing aid in response to the control signal received from the
second hearing aid.
[0058] In accordance with other embodiments, a hearing system includes a first hearing aid,
the first hearing aid comprising: a first microphone for converting sound into electrical
signals; a component for receiving or detecting a signal associated with a phone;
a processor communicatively coupled to the first microphone, wherein the processor
is configured to provide an output based on the electrical signals from the first
microphone; a first speaker communicatively coupled to the processor, and is configured
to provide an acoustic signal based on the output provided by the processor; and a
first communication device communicatively coupled to the component, wherein the communication
device is configured to transmit a control signal to a second hearing aid to increase
a gain of the second hearing aid in response to a lack of reception or detection of
the signal by the component.
[0059] In accordance with other embodiments, a hearing aid includes: a microphone for converting
sound into electrical signals; a processor communicatively coupled to the microphone,
wherein the processor is configured to provide an output based on the electrical signals
from the microphone; a speaker communicatively coupled to the processor, and is configured
to provide an acoustic signal based on the output provided by the processor; and a
communication device configured to receive a control signal transmitted from a phone
or a phone accessory; wherein the hearing aid is configured to detect whether it is
located at a position contralateral to a position of the phone with respect to a head
of a user; and wherein the processor is configured to reduce a gain of the hearing
aid to a non-zero value in response to the control signal received from the phone
or the phone accessory.
[0060] In one or more embodiments, the control signal is from the phone accessory, and the
phone accessory comprises a Bluetooth bridging device.
[0061] Other and further aspects and features will be evident from reading the following
detailed description of the embodiments.
BRIEF DESCRIPTION OF THE DAWINGS
[0062] The drawings illustrate the design and utility of embodiments, in which similar elements
are referred to by common reference numerals. These drawings are not necessarily drawn
to scale. In order to better appreciate how the above-recited and other advantages
and objects are obtained, a more particular description of the embodiments will be
rendered, which are illustrated in the accompanying drawings. These drawings depict
only typical embodiments and are not therefore to be considered limiting of its scope.
[0063] FIG. 1 illustrates a binaural hearing system in accordance with some embodiments;
[0064] FIG. 2 illustrates one implementation of the binaural hearing system of
FIG. 1 in accordance with some embodiments;
[0065] FIG. 3 illustrates a method performed by a binaural hearing system in accordance with some
embodiments; and
[0066] FIG. 4 illustrates another implementation of the binaural hearing system of
FIG. 1 in accordance with other embodiments.
DESCRIPTION OF THE EMBODIMENTS
[0067] Various embodiments are described hereinafter with reference to the figures. It should
be noted that the figures are not drawn to scale and that elements of similar structures
or functions are represented by like reference numerals throughout the figures. It
should also be noted that the figures are only intended to facilitate the description
of the embodiments. They are not intended as an exhaustive description of the claimed
invention or as a limitation on the scope of the claimed invention. In addition, an
illustrated embodiment needs not have all the aspects or advantages shown. An aspect
or an advantage described in conjunction with a particular embodiment is not necessarily
limited to that embodiment and can be practiced in any other embodiments even if not
so illustrated, or if not so explicitly described.
[0068] FIG. 1 illustrates a binaural hearing system 10 in accordance with some embodiments. The
binaural hearing system 10 includes a first hearing aid 12 and a second hearing aid
14 for placement at respective ears of a user of the binaural hearing system 10. Although
the hearing aids 12, 14 as shown as being placed completely in the respective ear
canals, in other embodiments, the hearing aids 12, 14 may be configured to be inserted
partially in the respective ear canals. In further embodiments, the hearing aids 12,
14 may be configured for placement outside the respective ear canals. Also, in other
embodiments, each of the hearing aids 12, 14 may be a behind-the-ear (BTE) device.
In further embodiments, the hearing aids 12, 14 may be parts of a headset with a headband
that connects the hearing aids 12, 14.
[0069] FIG. 2 illustrates an implementation of the binaural hearing system 10 of
FIG. 1 in accordance with some embodiments. As shown in the figure, the first hearing aid
12 includes a first microphone 202 for converting environmental sound (i.e., surrounding
sound in the environment in which the hearing aid is being operated) 204 into electrical
signals 206, a first component 210 for receiving or detecting a signal 212 associated
with a phone 214, and a first processor 220 communicatively coupled to the first microphone
202. The first processor 220 is configured to provide an output 222 based on the electrical
signals 206 from the first microphone 202. The first hearing aid 12 also includes
a first speaker 230 communicatively coupled to the first processor 220, and is configured
to provide an acoustic signal 232 based on the output 222 provided by the first processor
220. As shown in the figure, the first hearing aid 12 further includes a first communication
device 240 communicatively coupled to the component 210. The first communication device
240 is configured to transmit a control signal 242 to the second hearing aid 14 to
reduce a gain of the second hearing aid 14 to a non-zero value in response to the
signal 212 detected by the component 210 (i.e., when the phone is placed next to the
ear wearing the first hearing aid 14). In some embodiments, the gain that is reduced
may be the gain from the microphone to the speaker of the second hearing aid 14.
[0070] In the illustrated embodiments, the second hearing aid 14 includes a second microphone
252 for converting sound 254 into electrical signals 256, a second component 260 for
receiving or detecting the signal 212 associated with the phone 214 when the phone
214 is placed next to the ear wearing the second hearing aid 14, and a second processor
270 communicatively coupled to the second microphone 252. The second processor 270
is configured to provide an output 272 based on the electrical signals 256 from the
second microphone 252. The second hearing aid 14 also includes a second speaker 280
communicatively coupled to the second processor 270, and is configured to provide
an acoustic signal 282 based on the output 272 provided by the second processor 270.
As shown in the figure, the second hearing aid 14 further includes a second communication
device 290 communicatively coupled to the component 260. The communication device
240 is configured to transmit a control signal 292 to the first hearing aid 12 to
reduce a gain of the first hearing aid 12 to a non-zero value in response to the signal
212 detected by the component 260 (i.e., when the phone is placed next to the ear
wearing the second hearing aid 14).
[0071] In some embodiments, the first processor 220 may be any component having circuitry
that is capable of performing signal processing. For example, in some embodiments,
the first processor 220 may be any type of processor, including but not limited to
a general purpose processor, an ASIC processor, a FPGA processor, etc. (each of which
may be considered an example of circuitry). In other embodiments, the first processor
220 may be any hardware (e.g., circuitry) configured for signal processing. Furthermore,
the first processor 220 may be implemented using a single component, or multiple components
(e.g., processing modules) in some embodiments.
[0072] Similarly, in some embodiments, the second processor 270 may be any component having
circuitry that is capable of performing signal processing. For example, in some embodiments,
the second processor 270 may be any type of processor, including but not limited to
a general purpose processor, an ASIC processor, a FPGA processor, etc. (each of which
may be considered an example of circuitry). In other embodiments, the second processor
270 may be any hardware (e.g., circuitry) configured for signal processing. Furthermore,
the second processor 270 may be implemented using a single component, or multiple
components (e.g., processing modules) in some embodiments.
[0073] Also, in some embodiments, the first hearing aid 12 may include circuitry for reducing
the gain of the first hearing aid 12. The circuitry may be implemented using the first
processor 220 (e.g., it may be a part of the first processor 220, such as a processing
module in the first processor 220), or it may be implemented using other component(s).
Similarly, in some embodiments, the second hearing aid 14 may include circuitry for
reducing the gain of the second hearing aid 14. The circuitry may be implemented using
the second processor 270 (e.g., it may be a part of the second processor 270, such
as a processing module in the second processor 270), or it may be implemented using
other component(s).
[0074] In one method of use of the binaural hearing system 10, the first and second hearing
aids 12, 14 are placed in respective ears of a user of the binaural hearing system
10. In a first mode of operation by the first hearing aid 12, the first microphone
202 receives sound 204 from the environment, and covert the sound 204 into electrical
signals 206 for processing by the first processor 220. The first processor 220 processes
the electrical signals 206 in accordance with a hearing compensation algorithm specific
for the user of the hearing system 10, and generates an output (or hearing compensated
output) 222. The first speaker 230 receives the output 222 and converts the output
222 into the acoustic signals (or hearing compensated acoustic signals) 232 for emission
towards a first eardrum of the ear of the user wearing the first hearing aid 12. In
some embodiments, the hearing compensation algorithm may include a hearing compensation
program running on the first processor 220, and hearing compensation parameters stored
in a non-transitory medium in the first hearing aid 12.
[0075] Similarly, in the first mode of operation by the second hearing aid 14, the first
microphone 252 receives sound 254 from the environment, and covert the sound 254 into
electrical signals 256 for processing by the second processor 270. The second processor
270 processes the electrical signals 256 in accordance with a hearing compensation
algorithm specific for the user of the hearing system 10, and generates an output
(or hearing compensated output) 272. The second speaker 280 receives the output 272
and converts the output 272 into the acoustic signals (or hearing compensated acoustic
signals) 282 for emission towards an eardrum of a second ear of the user wearing the
second hearing aid 14. In some embodiments, the hearing compensation algorithm may
include a hearing compensation program running on the second processor 270, and hearing
compensation parameters stored in a non-transitory medium in the second hearing aid
14.
[0076] In some cases, when the user of the hearing system 10 picks up the phone 214, and
places the phone 214 next to the first ear (for example) wearing the first hearing
aid 12 to make a call, or to answer a call, the component 210 at the first hearing
aid 12 detects the signal 212 that is associated with the phone 214 (See item 302
in
FIG. 3, which illustrates a method 300 performed by the hearing system 10 in some embodiments).
This places the hearing system 10 into a second mode of operation. In the second mode,
in response to the detection of the signal 212 by the component 210, the communication
device 240 in the first hearing aid 12 transmits the control signal 242 to the second
hearing aid 14 (Item 304). The communication device 290 in the second hearing aid
14 receives the signal 242 from the first hearing aid 12. The second processor 270
in the second hearing aid 14, in response to the detected signal 242, reduces a gain
of the second hearing aid 14 to a non-zero value (Item 306). In some embodiments,
the reducing of the gain of the second hearing aid 14 may be accomplished by reducing
a voltage or current for the second speaker 280 to thereby reduce a volume of the
acoustic signal 282 being output by the second speaker 280. In other embodiments,
the reducing of the gain of the second hearing aid 14 may be accomplished by reducing
a sensitivity of the second microphone 252, and/or an energy level of the signal 256
being output by the second microphone 252. For example, in some embodiments, the microphone
signal may be reduced by 6db, or any of other prescribed values.
[0077] Thus, as shown in the illustrated example, when the user is using the phone 214 in
the first ear wearing the first hearing aid 12, the second hearing aid 14 is still
being used to process sound 254 from the environment. In particular, the second microphone
260 remains "ON", and the second speaker 280 of the second hearing aid 14 is configured
to provide the acoustic signal 282 based on the signal 256 from the second microphone
252 regardless of whether the second hearing aid 14 receives the control signal 242
from the first hearing aid 12 or not. However, the acoustic signal 282 output by the
second speaker 280 of the second hearing aid 14 is reduced so that the user can focus
on the phone call at the first ear, while maintain the ability to hear environmental
sound using the second hearing aid 14. This is advantageous in that the user may want
to be aware of his/her surrounding while speaking on the phone 214. For example, the
user may want to know if another person is walking up to the user, or calling on the
user from nearby surrounding environment, while the user is on the phone 214. As another
example, the user may want to know if a car is approaching while speaking on the phone
214. Allowing the user to be aware of his/her surrounding may provide safety for the
user and make the user feel more comfortable using the phone feature of the hearing
system 10, and it may also allow the user to perform other task(s) that involve the
user being aware of the surrounding environment. Furthermore, when the second microphone
at one ear is remained on (i.e., not turned off while the first microphone at the
other ear processes audio signals from the phone), the second hearing aid can process
environmental sounds, thereby providing a true binaural functionality. The above features
are counter-intuitive and are non-obvious because one may consider having mixed signals
(i.e., phone signal at one ear plus signal from the environment at the other ear)
undesirable since a user may be annoyed by the mixed signals. However, Applicant of
the subject application believes that while the mixed signals may provide some degree
of annoyance, the benefit of being aware of the surrounding environment may outweigh
such annoyance.
[0078] In some embodiments, an amount of gain reduction of the second hearing aid 14 may
be fixed. In other embodiments, an amount of gain reduction of the second hearing
aid 14 is based on user preference. For example, one or each of the hearing aids 12,
14 may include a control for allowing the user to select the amount of gain reduction.
The control may be in a form of a button or a knob, or alternatively, in the form
of a programming interface. In other embodiments, the amount of gain reduction of
the second hearing aid 14 may be based on a hearing loss of the user of the hearing
system 10. In such cases, the amount of gain reduction may be determined during a
hearing or fitting test. In further embodiments, the amount of gain reduction of the
second hearing aid 14 may be dependent on an environment in which the hearing system
10 is operated. For example, in one implementation, the amount of gain reduction of
the second hearing aid 14 may be frequency dependent. In such cases, the amount of
gain reduction may be a function of a frequency range associated with sound from the
environment. In another implementation, the second hearing aid 14 may include an environment
classifier, which classifies the environment in which the hearing system 10 is being
operated. If the environment classifier determines that the environment is a noisy
place, the amount of gain reduction may be less. On the other hand, if the environment
classifier determines that the environment is a quiet place, the amount of gain reduction
may be relatively higher.
[0079] In some embodiments, in addition to reducing the gain of the second hearing aid 14,
the second processor 270 may also be configured to place the second hearing aid 14
in an omnidirectional mode in response to the signal 242 detected by the second communication
device 290. For example, the second processor 270 may switch the second hearing aid
14 from a directional mode to an omnidirectional mode.
[0080] Alternatively, in another method of use, instead of placing the phone 214 next to
the first ear, the user may place the phone 214 next to the second ear wearing the
second hearing aid 14. In such cases, when the user of the hearing system 10 places
the phone 214 next to the second ear wearing the second hearing aid 14 to make a call,
or to answer a call, the component 260 at the second hearing aid 14 detects the signal
212 that is associated with the phone 214 (Item 302). This places the hearing system
10 into a second mode of operation. In the second mode, in response to the detection
of the signal 212 by the component 260, the communication device 290 in the second
hearing aid 14 transmits the signal 292 to the first hearing aid 12 (Item 304). The
communication device 240 in the first hearing aid 12 receives the signal 292 from
the second hearing aid 14. The first processor 220 in the first hearing aid 12, in
response to the detected signal 292, reduces a gain of the first hearing aid 12 to
a non-zero value (Item 306). In some embodiments, the reducing of the gain of the
first hearing aid 12 may be accomplished by reducing a voltage or current for the
first speaker 230 to thereby reduce a volume of the acoustic signal 232 being output
by the first speaker 230. In other embodiments, the reducing of the gain of the first
hearing aid 12 may be accomplished by reducing a sensitivity of the first microphone
202, and/or an energy level of the signal 206 being output by the first microphone
202. For example, in some embodiments, the microphone signal may be reduced by 6db,
or any of other prescribed values.
[0081] Thus, as shown in the illustrated example, when the user is using the phone 214 in
the second ear wearing the second hearing aid 14, the first hearing aid 12 is still
being used to process sound 204 from the environment. In particular, the first microphone
202 remains "ON", and the second speaker 230 of the first hearing aid 12 is configured
to provide the acoustic signal 232 based on the signal 206 from the first microphone
202 regardless of whether the first hearing aid 12 receives the control signal 292
from the second hearing aid 14 or not. However, the acoustic signal 232 output by
the first speaker 230 of the first hearing aid 12 is reduced so that the user can
focus on the phone call at the second ear, while maintain the ability to hear environmental
sound using the first hearing aid 12.
[0082] In some embodiments, an amount of gain reduction of the first hearing aid 12 may
be fixed. In other embodiments, an amount of gain reduction of the first hearing aid
12 is based on user preference. For example, one or each of the hearing aids 12, 14
may include a control for allowing the user to select the amount of gain reduction.
The control may be in a form of a button or a knob, or alternatively, in the form
of a programming interface. In other embodiments, the amount of gain reduction of
the first hearing aid 12 may be based on a hearing loss of the user of the hearing
system 10. In such cases, the amount of gain reduction may be determined during a
hearing or fitting test. In further embodiments, the amount of gain reduction of the
first hearing aid 12 may be dependent on an environment in which the hearing system
10 is operated. For example, in one implementation, the amount of gain reduction of
the first hearing aid 12 may be frequency dependent. In such cases, the amount of
gain reduction may be a function of a frequency range associated with sound from the
environment. In another implementation, the first hearing aid 12 may include an environment
classifier, which classifies the environment in which the hearing system 10 is being
operated. If the environment classifier determines that the environment is a noisy
place, the amount of gain reduction may be less. On the other hand, if the environment
classifier determines that the environment is a quiet place, the amount of gain reduction
may be relatively higher. Also, in some embodiments, the amount of gain reduction
may be the same for the first and second hearing aids 12, 14. In other embodiments,
the amount of gain reduction of the first hearing aid 12 may be different from an
amount of gain reduction of the second hearing aid 14.
[0083] In some embodiments, in addition to reducing the gain of the first hearing aid 12,
the first processor 220 may also be configured to place the first hearing aid 12 in
an omnidirectional mode in response to the signal 292 detected by the first communication
device 240. For example, the first processor 220 may switch the first hearing aid
12 from a directional mode to an omnidirectional mode.
[0084] In some embodiments, the signal 212 associated with the phone 214 may be a magnetic
field from a static (permanent) magnetic coil in the phone 214, in which cases, the
components 210, 260 may be respective magnetic field sensors. Alternatively, the magnetic
field may be from a permanent magnet that is attached to the phone 214. In other embodiments,
the signal 212 may be an electromagnetic field from a magnetic coil in the phone 214,
in which cases, the components 210, 260 may be respective magnetic field sensors configured
to detect electromagnetic fields. The magnetic coil may be a part of a speaker of
the phone 214 in some embodiments. In further embodiments, the signal 212 may be a
radiofrequency signal, in which cases, the components 210, 260 may be respective radiofrequency
signal detectors. In still other embodiments, the signal 212 may be a Bluetooth signal,
in which cases, the components 210, 260 may be respective Bluetooth signal detectors.
In further embodiments, the components 210, 260 may be respective devices for detecting
giant magnetoresistance (GMR) as the signal 212 associated with the phone 214. In
other embodiments, the signal 212 may be other types of signals, and the components
210, 260 may be of a type that is configured to receive the signals. Also, in one
or more embodiments, the hearing aid may be paired with the phone 214. The pairing
may be performed automatically when the signal 212 associated with the phone 214 is
detected by the hearing aid.
[0085] Also, in some embodiments, the communication devices 240, 290 may be transceivers
(wherein each transceiver may include a transmitter and a receiver) that are configured
to communicate with each other. For example, in some embodiments, the communication
devices 240, 290 may be radiofrequency devices configured to communicate control signals
242, 292 in the form of radiofrequency signals. In other embodiments, the communication
devices 240, 290 may be Bluetooth devices configured to communicate control signals
242, 292 in the form of Bluetooth signals. In further embodiments, the communication
devices 240, 290 may be respective ends of a cable connecting the first and second
hearing aids 12, 14. In such cases, the cable is configured to communicate the signals
242, 292 using physical wire(s).
[0086] In some embodiments, when the user places the phone 214 next to the first hearing
aid 12 (first mode of operation), the first hearing aid 12 processes the conversational
signals from the speaker of the phone 214 and output acoustic signals 232 representative
of the conversational signals through the first speaker 230. In particular, the microphone
202 receives the conversational signals from the speaker of the phone 214 (which may
be considered as an example of the environmental sound 204 in the example), and output
corresponding electrical signals 206. The first processor 220 processes the electrical
signals 206, and generates an output 222, which is then processed by the first speaker
230 to create the acoustic signals 232 representative of the conversational signals
from the phone 214. In other embodiments, instead of using sound from the speaker
of the phone 214, the first hearing aid 12 may be configured to detect an induction
signal from the phone 214 that represents conversational signal. In such cases, the
first hearing aid 12 may include an induction signal detector, which is configured
to receive the induction signal representative of conversational signal. The induction
signal detector provides an input to the first processor 220 based on the induction
signal, and the first processor 220 then generates the output 222 to cause the speaker
230 to emit the acoustic signal 232 representative of the conversational signal from
the phone 214. In further embodiments, when using the phone 214 with the first hearing
aid 12, the phone 214 may be configured to transmit a radiofrequency signal or a Bluetooth
signal representative of conversational signal from the phone 214. In such cases,
the first hearing aid 12 may include a signal receiver (e.g., a radiofrequency receiver,
or a Bluetooth receiver) configured to receive the radiofrequency / Bluetooth signal
representative of conversational signal from the phone 214, and to generate an electrical
signal in response thereto. The first processor 220 processes the electrical signal
to generate the output 222, which is then processed by the first speaker 230 to output
the acoustic signal 232 representative of the conversational signal from the phone
214. In some embodiments, the signal receiver at the first hearing aid 12 for receiving
signal from the phone 214 representative of conversational signal may be implemented
using the communication device 240, or a separate device.
[0087] In some embodiments, when the first hearing aid 12 is configured to use sound signal
from the speaker of the phone 214 to provide the acoustic output 232, the microphone
202 may detect both conversational signal from the phone 214 as well as some environmental
sound. In other embodiments in which the sound signal from the speaker of the phone
214 is not used by the first hearing aid 12 to provide the acoustic output 232 representative
conversational signal from the phone 214, but a separate signal (e.g., an induction
signal, a radiofrequency signal, a Bluetooth signal, etc., like that described in
the previous embodiments) from the phone 214 is being used, the acoustic output 232
output by the first speaker 230 may represent both conversational signal from the
phone 214 as well as sound from the environment. In such cases, the signal receiver
at the first hearing aid 12 configured for receiving signal representative conversational
signal from the phone 214 may provide a first input to the processor 220, and the
microphone 202 may provide a second input representative of environmental sound 204
to the processor 220. The processor 220 processes the first and second inputs, and
generates the output 222 the represent a combination of both phone conversational
signal and environmental sound 204. The first speaker 230 processes the output 222
and generates the acoustic signal 232 that represent a combination of both phone conversational
signal and environmental sound 204. In some embodiments, the ratio between the volume
of conversational signal and the volume of environmental sound presented in the acoustic
signal 232 may be fixed. In some cases, the ratio may be selected so that the conversational
signal component in the acoustic signal 232 has a higher volume than the surrounding
sound component. In other embodiments, the ratio may be adjustable through a control
at the hearing aid 12 / 14 by the user. In other embodiments, when the first hearing
aid 12 is processing signal from the phone 214, the first hearing aid 12 is configured
to eliminate environmental sound 204. For example, the first hearing aid 12 may be
configured to disable the microphone 202 in response to a detection of the signal
212 by the component 210 in some embodiments. In such cases, the first hearing aid
12 may further include a switch that switches between operations by the signal receiver
and the microphone 202, respectively.
[0088] In the above embodiments, when the phone 214 is placed next to the first hearing
aid 12, the second hearing aid 14 provides the acoustic signal 282 representative
of the environmental sound 254, and does not represent any phone conversational signal
from the phone 214. In other embodiments, in response to the control signal 242 received
from the first hearing aid 12, the second hearing aid 14 may be configured to provide
the acoustic signal 282 representative of both phone conversational signal from the
phone 214, and environmental sound 254. For example, the first hearing aid 12 may
transmit a signal representative of the conversational signal from the phone 214 to
the second hearing aid 14 (e.g., using the first communication device 240, or another
communication device at the first hearing aid 12). In such cases, the second communication
device 290 of the second hearing aid 14 receives the signal, and generates a first
input for the second processor 270 in response thereto for processing by the second
processor 270. The second processor 270 also receives a second input from the second
microphone 252 representative of environmental sound 254. The processor 270 processes
the first and second inputs, and generates the output 272 that represent a combination
of both phone conversational signal and environmental sound. The second speaker 280
processes the output 272 and generates the acoustic signal 282 that represent a combination
of both phone conversational signal and environmental sound. In some embodiments,
the ratio between the volume of conversational signal and the volume of environmental
sound presented in the acoustic signal 282 may be fixed. In other embodiments, the
ratio may be adjustable through a control at the hearing aid 12 /14 by the user.
[0089] In other embodiments, instead of placing the phone 214 next to the first hearing
aid 12, the user may place the phone 214 next to the second hearing aid 14 (first
mode of operation). In such cases, the second hearing aid 14 processes the conversational
signals from the speaker of the phone 214 and output acoustic signals 282 representative
of the conversational signals through the second speaker 280. In particular, the microphone
252 receives the conversational signals from the speaker of the phone 214 (which may
be considered as an example of the environmental sound 254 in the example), and output
corresponding electrical signals 256. The second processor 270 processes the electrical
signals 256, and generates an output 272, which is then processed by the second speaker
280 to create the acoustic signals 282 representative of the conversational signals
from the phone 214. In other embodiments, instead of using sound from the speaker
of the phone 214, the second hearing aid 14 may be configured to detect an induction
signal from the phone 214 that represents conversational signal. In such cases, the
second hearing aid 14 may include an induction signal detector, which is configured
to receive the induction signal representative of conversational signal. The induction
signal detector provides an input to the second processor 270 based on the induction
signal, and the second processor 270 then generates the output 272 to cause the speaker
280 to emit the acoustic signal 282 representative of the conversational signal from
the phone 214. In further embodiments, when using the phone 214 with the second hearing
aid 14, the phone 214 may be configured to transmit a radiofrequency signal or a Bluetooth
signal representative of conversational signal from the phone 214. In such cases,
the second hearing aid 14 may include a signal receiver (e.g., a radiofrequency receiver,
or a Bluetooth receiver) configured to receive the radiofrequency /Bluetooth signal
representative of conversational signal from the phone 214, and to generate an electrical
signal in response thereto. The second processor 270 processes the electrical signal
to generate the output 272, which is then processed by the second speaker 280 to output
the acoustic signal 282 representative of the conversational signal from the phone
214. In some embodiments, the signal receiver at the second hearing aid 14 for receiving
signal from the phone 214 representative of conversational signal may be implemented
using the communication device 290, or a separate device.
[0090] In some embodiments, when the second hearing aid 14 is configured to use sound signal
from the speaker of the phone 214 to provide the acoustic output 282, the microphone
252 may detect both conversational signal from the phone 214 as well as some environmental
sound. In other embodiments in which the sound signal from the speaker of the phone
214 is not used by the second hearing aid 14 to provide the acoustic output 282 representative
conversational signal from the phone 214, but a separate signal (e.g., an induction
signal, a radiofrequency signal, a Bluetooth signal, etc., like that described in
the previous embodiments) from the phone 214 is being used, the acoustic output 282
output by the first speaker 280 may represent both conversational signal from the
phone 214 as well as sound 254 from the environment. In such cases, the signal receiver
at the second hearing aid 14 configured for receiving signal representative conversational
signal from the phone 214 may provide a first input to the processor 270, and the
microphone 252 may provide a second input representative of environmental sound 254
to the second processor 270. The second processor 270 processes the first and second
inputs, and generates the output 272 the represent a combination of both phone conversational
signal and environmental sound 254. The second speaker 280 processes the output 272
and generates the acoustic signal 282 that represent a combination of both phone conversational
signal and environmental sound 254. In some embodiments, the ratio between the volume
of conversational signal and the volume of environmental sound presented in the acoustic
signal 282 may be fixed. In some cases, the ratio may be selected so that the conversational
signal component in the acoustic signal 282 has a higher volume than the surrounding
sound component. In other embodiments, the ratio may be adjustable through a control
at the hearing aid 12 / 14 by the user. In other embodiments, when the second hearing
aid 14 is processing signal from the phone 214, the second hearing aid 14 is configured
to eliminate environmental sound 204. For example, the second hearing aid 14 may be
configured to disable the microphone 252 in response to a detection of the signal
212 by the component 260 in some embodiments. In such cases, the second hearing aid
14 may further include a switch that switches between operations by the signal receiver
and the microphone 252, respectively.
[0091] In the above embodiments, when the phone 214 is placed next to the second hearing
aid 14, the first hearing aid 12 provides the acoustic signal 232 representative of
the environmental sound 204, and does not represent any phone conversational signal
from the phone 214. In other embodiments, in response to the control signal 292 received
from the second hearing aid 14, the first hearing aid 12 may be configured to provide
the acoustic signal 232 representative of both phone conversational signal from the
phone 214, and environmental sound 204. For example, the second hearing aid 14 may
transmit a signal representative of the conversational signal from the phone 214 to
the first hearing aid 12 (e.g., using the first communication device 290, or another
communication device at the second hearing aid 14). In such cases, the first communication
device 240 of the first hearing aid 12 receives the signal, and generates a first
input for the first processor 220 in response thereto for processing by the first
processor 220. The first processor 220 also receives a second input from the first
microphone 202 representative of environmental sound 204. The processor 220 processes
the first and second inputs, and generates the output 222 that represent a combination
of both phone conversational signal and environmental sound 204. The first speaker
230 processes the output 222 and generates the acoustic signal 232 that represent
a combination of both phone conversational signal and environmental sound 204. In
some embodiments, the ratio between the volume of conversational signal and the volume
of environmental sound presented in the acoustic signal 232 may be fixed. In other
embodiments, the ratio may be adjustable through a control at the hearing aid 12 /
14 by the user.
[0092] In one or more embodiments, when the phone 214 next to the first hearing aid 12 is
removed, the component 210 does not receive or detect the signal 212 that is associated
with the phone 214. In such cases, in response to the lack of reception or detection
of the signal 212 by the component 210, the communication device 240 transmits an
additional control signal to the second hearing aid 14. The communication device 290
of the second hearing aid 14 receives the additional control signal, and in response
to the additional control signal, the second processor 270 increases the gain of the
second hearing aid 14. Because the gain of the second hearing aid 14 was previously
reduced to a non-zero value when the phone 214 was placed next to the first hearing
aid 12, in some embodiments, when the phone 214 is removed, the gain of the second
hearing aid 14 is increased from the non-zero value to a higher value. The higher
value may be a preset value in some embodiments. In other embodiments, the higher
value may be dynamically determined based on the environment in which the hearing
system 10 is being operated. Also, in some embodiments, the higher value may be based
on a hearing loss of the user of the hearing system 10, and may be determined based
on a hearing loss compensation algorithm stored in the hearing system 10.
[0093] Also, in one or more embodiments described herein the first hearing aid 12 and/or
the second hearing aid 14 may also include a control for allowing a user of the hearing
system 10 to turn "ON" or "OFF" the gain reduction feature.
In such cases, if the gain reduction feature is turned "ON", the hearing system 10
will automatically reduce a gain of one of the hearing aids 12, 14 to a non-zero value
in response to the other one of the hearing aids 12, 14 detecting the signal 212 associated
with the phone 214. On the other hand, if the gain reduction feature is turned "OFF",
the hearing system 10 will not automatically reduce a gain of one of the hearing aids
12, 14 to a non-zero value in response to the other one of the hearing aids 12, 14
detecting the signal 212 associated with the phone 214. In such cases, if the hearing
system 10 includes a control for allowing the user to selectively reduce the volume
of one or both of the hearing aids 12, 14, the user may manually adjust the volume
of one hearing aid while the other hearing aid is used with the phone 214.
[0094] In the above embodiments, the hearing system 10 is configured so that the phone 214
may be selectively placed next to one of the first hearing aid 12 and the second hearing
aid 14, and the other one of the hearing aids 12, 14 would reduce the gain accordingly.
In other embodiments, such as that shown in
FIG. 4, the hearing system 10 may be configured so that only one of the hearing aids 12,
14 is configured to process conversational signal from the phone 214. In the illustrated
embodiments, only the first hearing aid 12 has the component 210 for detecting the
signal 212 associated with the phone 214, and the second hearing aid 14 does not have
the component 260 for detecting the signal 212. Also, in the illustrated embodiments,
the first communication device 240 is a transmitter, and the second communication
device 290 is a receiver. The method of using the hearing system 10 of
FIG. 4 is the same as that described previously, except that only the first hearing aid
12 is configured to detect the signal 212 from the phone 214. The hearing system 10
of
FIG. 4 may be advantageous in that it reduces the complexity of the configuration of the
second hearing aid 14, and it may be beneficial for users who have an ear-preference
for talking on the phone.
[0095] In further embodiments, the component 210 / 260 for detecting the signal 212 associated
with the phone 214 may be implemented at an intermediary device that is configured
to communicate with both the phone 214 and the hearing aids 12, 14. In such cases,
the intermediary device may include a first communication device (e.g., a wire, a
wireless transceiver, etc.) for communication with the phone 214, and a second communication
device (e.g., a wire, a wireless transceiver, etc.) for communication with the hearing
aids 12, 14. The intermediary device may further include a processor for processing
signals transmitted from the phone 214 and the hearing aids 12, 14. In some embodiments,
the intermediary device may be a head-band, a neck-band, or any of other devices that
can be worn by the user. In other embodiments, the intermediary device may include
a clip for detachably coupling to a clothing of the user.
[0096] During use, when the component 210/260 at the intermediary device detects the signal
212 associated with the phone 214 (thereby indicating that the user may be using the
phone 214), the intermediary device that transmits control signal(s) to one or both
of the hearing aids 12, 14 to bring the hearing aid 12 and/or the hearing aid 14 into
the second mode of operation. In some embodiments, in the second mode of operation,
the intermediary device provides conversational signal received from the phone 214
to one or both of the hearing aids 12, 14. For example, in some embodiments, the intermediary
device may provide conversational signal to only the first hearing aid 12, while reducing
a gain of the second hearing aid 12 (which may be achieved by the intermediary device
transmitting a control signal to the second hearing aid 12 to reduce the gain). In
such cases, the second hearing aid 12 continues to provide acoustic signal to the
user representing the environmental sound. In some embodiments, the first hearing
aid 12 receives the conversational signal from the intermediary device, and presents
the acoustic signal 232 to the user that represents only the conversational signal
from the phone 214. In other embodiments, the first hearing aid 12 may be configured
to mix the conversational signal received from the intermediary device with signal
representing surrounding sound 204 output by the microphone 202, and present the acoustic
signal 232 that represents both conversational signal from the phone 214 and the surrounding
sound 204. In some cases, the conversational signal component in the acoustic signal
232 may have a higher volume than the surrounding sound component.
[0097] In further embodiments, the intermediary device may provide conversational signal
received from the phone 214 to both the first and second hearing aids 12, 14. In such
cases, one or both of the hearing aids 12, 14 may be configured to mix the conversational
signal with signal representing surrounding sound detected by the corresponding microphone(s)
202 and/or 252. In some cases, the conversational signal component in the acoustic
signal 232 and/or 282 provided from the corresponding microphone 202 and/or 252 may
have a higher volume than the surrounding sound component.
[0098] In one or more embodiments, a hearing aid fitting system may be provided for fitting
the hearing system 10 to compensate for a hearing loss of a user of the hearing system
10. In some embodiments, the hearing aid fitting system may include a user interface
(e.g., a keyboard, a touch-screen, a button, a knob, a microphone for receiving verbal
command, etc.) for receiving an input to set an amount of gain reduction of each of
the first hearing aid and the second hearing aid. The amount of gain reduction may
be different between the first and second hearing aids. In some embodiments, the amount
of gain reduction of each of the first and second hearing aids may be based on a hearing
loss of the user.
[0099] In one or more embodiments, a hearing aid may be configured to detect whether it
is located at a position contralateral (relating to or denoting the opposite side
of a body) to a position of the phone with respect to a head of a user. The hearing
aid may be one of the hearing aids in a binaural hearing aid system, or alternatively,
it may be a stand-alone single hearing aid. For example, in accordance with other
embodiments, a hearing aid may include (1) a microphone for converting sound into
electrical signals; (2) a processor communicatively coupled to the microphone, wherein
the processor is configured to provide an output based on the electrical signals from
the microphone; (3) a speaker communicatively coupled to the processor, and is configured
to provide an acoustic signal based on the output provided by the processor; and (4)
a communication device configured to receive a control signal transmitted from a phone
or a phone accessory. The processor may be configured to reduce a gain of the hearing
aid to a non-zero value in response to the control signal received from the phone
or the phone accessory. By means of non-limiting examples, the phone accessory may
be a Bluetooth bridging device. Such hearing aid may be configured to detect whether
the hearing aid is located at a position contralateral to a position of the phone
with respect to a head of a user. For example, the hearing aid may be positioned at
or in the left ear of a user, and the hearing aid may be configured to detect whether
the phone is located near or at the right ear of the user. For example, in some embodiments,
the hearing aid may include a detector for detecting a signal associated with the
phone (e.g., a signal coming from the phone). If the detected signal has a signal
strength that is below a threshold, then the hearing aid may determine that the hearing
aid is contralateral to the position of the phone (i.e., the phone is at the ear that
is different from the ear at which the hearing aid is located). On the other hand,
if the detected signal has a signal strength above the threshold, the hearing aid
may determine that the hearing aid is not contralateral to the position of the phone
(i.e., the phone and the hearing aid are both at the same ear).
[0100] In some embodiments, the reduction of the gain of the hearing aid may be based on
whether the hearing aid is located at a position contralateral to a position of the
phone with respect to the head of the user. For example, in some embodiments, if the
hearing aid is located at a position contralateral to a position of the phone with
respect to the head of the user, the processor may reduce the gain of the hearing
aid by a first amount, and if the hearing aid is not located at a position contralateral
to a position of the phone with respect to the head of the user, the processor may
reduce the gain of the hearing aid by a second amount that is different from the first
amount.
[0101] In some embodiments, the first amount may be greater than the second amount. For
example, in some embodiments in which the hearing aid is configured to receive acoustic
signal from the phone, and if the phone is placed at the same ear at which the hearing
aid is located, then the second amount of gain reduction may be less than the first
amount. This is because when the user is using the ear with hearing condition for
listening to phone conversation, it would be desirable to not reduce the gain of the
hearing aid too much. On the other hand, if the user is using the good ear for listening
to phone conversation, then it may be desirable to reduce the gain of the hearing
aid at the other ear (the one with the hearing aid) more so that the user can better
listen to the phone conversation.
[0102] In other embodiments, the first amount of gain reduction may be less than the second
amount of gain reduction. For example, in some embodiments in which the hearing aid
is configured to receive non-acoustic signal from the phone (e.g., induction signal,
or other types of signal that is not from the speaker), and if the phone is placed
at the same ear at which the hearing aid is located, then the second amount of gain
reduction (for the environmental sound component, not the phone signal component)
may be more than the first amount. This is because when the user is using the ear
with hearing condition for listening to phone conversation, it would be desirable
to reduce the volume of the environmental sound processed by the hearing aid, so that
the user of the hearing aid can listen to the phone conversation that is also provided
by the hearing aid.
[0103] In further embodiments, the first amount of gain reduction may be the same as the
second amount of gain reduction.
[0104] In still further embodiments, if the hearing aid detects that it is located at a
position contralateral to a position of the phone with respect to the head of the
user, then the processor automatically reduces the gain of the hearing aid. If the
hearing aid detects that it is not located at a position contralateral to a position
of the phone (i.e., the hearing aid and the phone are at the same ear), then the processor
does not reduce the gain of the hearing aid.
[0105] In one or more embodiments described herein, the gain of a hearing aid that is reduced
may be the gain from the microphone to the speaker of the hearing aid.
[0106] Also, in one or more embodiments described herein, the amount of gain adjustment
may be adjustable. For example, the amount of gain reduction may be adjustable by
a user using a control at one or both of the first and second hearing aids. In another
example, the amount of gain reduction may be adjustable by a technician during a hearing
aid fitting process. In such cases, the amount of gain reduction may be adjustable
and preset to a certain value.
[0107] It should be noted that the terms "first" and "second", as used in this specification,
are used to refer to multiple things. For example, the term "first hearing aid" and
the term "second hearing aid" are used to refer to two hearing aids. Also, the term
"first hearing aid" and the term "second hearing aid" may be used interchangeably.
For example, in other embodiments, hearing aid 14 may be considered a "first hearing
aid", and hearing aid 12 may be considered a "second hearing aid".
[0108] Also, as used in this specification, a signal described as being provided from a
component may be output directly from the component, or may be derived from an output
from the component. For example, the signal 222 from the first processor 220 may be
considered as being output directly from the processor 220, or derived from an output
from the processor 220 (e.g., after the output from the processor 220 is further processed
by another component coupled to the processor 220).
[0109] Disclosed in the present application are hearing systems, hearing aid fitting system
and hearing aids according to any of the following items.
Item 1. A hearing system comprising a first hearing aid, the first hearing aid comprising:
a first microphone for converting sound into electrical signals;
a processor communicatively coupled to the first microphone, wherein the processor
is configured to provide an output based on the electrical signals from the first
microphone;
a first speaker communicatively coupled to the processor, and is configured to provide
an acoustic signal based on the output provided by the processor; and
a first communication device configured to receive a control signal transmitted from
a second hearing aid in response to a reception or detection of a signal associated
with a phone by the second hearing aid;
wherein the first hearing aid is configured to reduce a gain of the first hearing
aid to a non-zero value in response to the control signal received from the second
hearing aid.
Item 2. Hearing system according to item 1, wherein the first hearing aid is configured
to be switched to an omnidirectional mode in response to the control signal.
Item 3. Hearing system according to any of items 1-2, wherein the first microphone
of the first hearing aid remains on after the first communication device of the first
hearing aid receives the control signal from the second hearing aid.
Item 4. Hearing system according to any of items 1-3, wherein the first speaker of
the first hearing aid is configured to provide the acoustic signal based on the output
provided by the processor regardless of whether the first communication device of
the first hearing aid receives the control signal from the second hearing aid or not.
Item 5. Hearing system according to any of items 1-4, wherein the first hearing aid
is configured to provide acoustic signals representative of phone signals from the
phone in response to the control signal received from the second hearing aid.
Item 6. Hearing system according to any of items 1-5, further comprising the second
hearing aid, wherein in response to the signal associated with the phone, only the
second hearing aid, and not the first hearing aid, provides acoustic signals representative
of phone signals from the phone.
Item 7. Hearing system according to any of items 1-6, wherein an amount of gain reduction
is adjustable.
Item 8. Hearing system according to any of items 1-7, further comprising a control
for allowing a user of the hearing system to adjust an amount of gain reduction of
the first hearing aid.
Item 9. Hearing system according to any of items 1-8, wherein an amount of gain reduction
of the first hearing aid is based on a preset user preference. Item 10. Hearing system
according to any of items 1-9, wherein an amount of gain reduction of the first hearing
aid is based on a hearing loss of a user of the hearing system.
Item 11. Hearing system according to any of items 1-10, wherein an amount of gain
reduction of the first hearing aid is dependent on an environment in which the hearing
system is operated.
Item 12. Hearing system according to any of items 1-11, wherein an amount of gain
reduction of the first hearing aid is frequency dependent.
Item 13. Hearing system according to any of items 1-12, wherein the first communication
device comprises a wire for receiving the control signal.
Item 14. Hearing system according to any of items 1-12, wherein the first communication
device comprises a wireless component for receiving the control signal.
Item 15. Hearing system according to any of items 1-14, further comprising the second
hearing aid, the second hearing aid comprising:
a component for receiving or detecting the signal associated with the phone; and
a second communication device communicatively coupled to the component, wherein the
second communication device is configured to transmit the control signal to the first
hearing aid in response to the signal received or detected by the component.
Item 16. Hearing system according to item 15, wherein the component comprises a sensor
for detecting a magnetic field as the signal that is associated with the phone.
Item 17. Hearing system according to item 16, wherein the magnetic field is from a
permanent magnet.
Item 18. Hearing system according to item 16, wherein the magnetic field is from an
electro-magnetic coil.
Item 19. Hearing system according to any of items 15-18, wherein the component comprises
a signal receiver configured to receive radiofrequency signal from the phone.
Item 20. Hearing system according to any of items 15-18, wherein the component comprises
a signal receiver configured to receive Bluetooth signal from the phone.
Item 21. Hearing system according to any of items 15-20, wherein the second hearing
aid is configured to operate in a first mode and in a second mode, the second hearing
aid having a second speaker;
wherein in the first mode, the second speaker of the second hearing aid provides an
acoustic signal that represents environmental sound; and
wherein in the second mode, the second speaker of the second hearing aid provides
an acoustic signal that represents phone signal.
Item 22. Hearing system according to claim 21, wherein when in the second mode, the
acoustic signal that represents the phone signal is derived from an acoustic phone
signal provided from a speaker of the phone.
Item 23. Hearing system according to item 21, wherein when in the second mode, the
acoustic signal that represents the phone signal is derived from an induction signal
from the phone.
Item 24. Hearing system according to any of items 1-23, wherein the first hearing
aid is also configured to increase the gain of the first hearing aid in response to
an additional control signal transmitted by the second hearing aid, the additional
control signal transmitted by the second hearing aid in response to a lack of reception
or detection of the signal associated with the phone.
Item 25. A hearing aid fitting system for fitting a hearing system according to any
of items 1-24 to compensate for a hearing loss of a user, comprising a user interface
for receiving an input to set an amount of gain reduction of the first hearing aid.
Item 26. A hearing system comprising a first hearing aid, the first hearing aid comprising:
a first microphone for converting sound into electrical signals;
a component for receiving or detecting a signal associated with a phone;
a processor communicatively coupled to the first microphone, wherein the processor
is configured to provide an output based on the electrical signals from the first
microphone;
a first speaker communicatively coupled to the processor, and is configured to provide
an acoustic signal based on the output provided by the processor; and
a first communication device communicatively coupled to the component, wherein the
communication device is configured to transmit a control signal to a second hearing
aid to reduce a gain of the second hearing aid to a non-zero value in response to
the signal received or detected by the component.
Item 27. Hearing system according to item 26, further comprising the second hearing
aid, wherein the second hearing aid comprises:
a second communication device configured to receive the control signal transmitted
from the first communication device of the first hearing aid; and
circuitry for reducing the gain of the second hearing aid in response to the control
signal.
Item 28. Hearing system according to any of items 26-27, wherein the control signal
also switches the second hearing aid into an omnidirectional mode. Item 29. Hearing
system according to item 28, further comprising the second hearing aid, wherein the
second hearing aid comprises:
a second communication device configured to receive the control signal transmitted
from the first communication device of the first hearing aid; and
circuitry for reducing the gain of the second hearing aid in response to the control
signal, and for switching the second hearing aid into the omnidirectional mode in
response to the control signal.
Item 30. Hearing system according to item 26, further comprising the second hearing
aid, the second hearing aid comprising a second microphone and a second speaker, wherein
the second microphone of the second hearing aid remains on after the second hearing
aid receives the control signal from the first hearing aid.
Item 31. Hearing system according to item 26, further comprising the second hearing
aid, the second hearing aid comprising a second microphone and a second speaker, wherein
the second speaker of the second hearing aid is configured to provide an acoustic
signal based on an output from the second microphone regardless of whether the second
hearing aid receives the control signal from the first hearing aid or not.
Item 32. Hearing system according to item 26, further comprising the second hearing
aid, wherein the second hearing aid is configured to provide acoustic signals representative
of phone signals from the phone in response to the control signal received from the
first hearing aid.
Item 33. Hearing system according to item 26, further comprising the second hearing
aid, wherein in response to the signal associated with the phone, only the first hearing
aid, and not the second hearing aid, provides acoustic signals representative of phone
signals from the phone.
Item 34. Hearing system according to any of items 26-33, wherein an amount of gain
reduction of the second hearing aid is adjustable.
Item 35. Hearing system according to any of items 26-34, further comprising a control
for allowing a user of the hearing system to adjust an amount of gain reduction of
the second hearing aid.
Item 36. Hearing system according to any of items 26-35, wherein an amount of gain
reduction of the second hearing aid is based on a preset user preference.
Item 37. Hearing system according to any of items 26-36, wherein an amount of gain
reduction of the second hearing aid is based on a hearing loss of a user of the hearing
system.
Item 38. Hearing system according to any of items 26-37, wherein an amount of gain
reduction of the second hearing aid is dependent on an environment in which the hearing
system is operated.
Item 39. Hearing system according to any of items 26-38, wherein an amount of gain
reduction of the second hearing aid is frequency dependent. Item 40. Hearing system
according to any of items 26-39, wherein the component comprises a sensor for detecting
a magnetic field as the signal that is associated with the phone.
Item 41. Hearing system according to item 40, wherein the magnetic field is from a
permanent magnet.
Item 42. Hearing system according to item 40, wherein the magnetic field is from an
electro-magnetic coil.
Item 43. Hearing system according to any of items 26-42, wherein the component comprises
a signal receiver configured to receive radiofrequency signal from the phone.
Item 44. Hearing system according to any of items 26-43, wherein the component comprises
a signal receiver configured to receive Bluetooth signal from the phone.
Item 45. Hearing system according to any of items 26-44, wherein the first communication
device comprises a wire for transmitting the control signal.
Item 46. Hearing system according to any of item 26-44, wherein the first communication
device comprises a wireless component for transmitting the control signal.
Item 47. Hearing system according to any of items 26-46, wherein the first hearing
aid is configured to operate in a first mode and in a second mode;
wherein in the first mode, the first speaker provides the acoustic signal that represents
environmental sound; and
wherein in the second mode, the first speaker provides an output that represents phone
signal.
Item 48. Hearing system according to item 47, wherein when in the second mode, the
output that represents the phone signal is derived from an acoustic phone signal provided
from a speaker of the phone.
Item 49. Hearing system according to item 47, wherein when in the second mode, the
output that represents the phone signal is derived from an induction signal from the
phone.
Item 50. Hearing system according to any of items 26-49, wherein the first communication
device of the first hearing aid is also configured to transmit an additional control
signal to the second hearing aid to increase the gain of the second hearing aid in
response to a lack of reception or detection of the signal associated with the phone.
Item 51. A hearing aid fitting system for fitting a hearing system according to any
of items 26-50 to compensate for a hearing loss of a user, comprising a user interface
for receiving an input to set an amount of gain reduction of the second hearing aid.
Item 52. A hearing system comprising a first hearing aid, the first hearing aid comprising:
a first microphone for converting sound into electrical signals;
a processor communicatively coupled to the first microphone, wherein the processor
is configured to provide an output based on the electrical signals from the first
microphone;
a first speaker communicatively coupled to the processor, and is configured to provide
an acoustic signal based on the output provided by the processor; and
a first communication device configured to receive a control signal transmitted from
a second hearing aid in response to a lack of reception or detection of a signal associated
with a phone;
wherein the first hearing aid is configured to increase a gain of the first hearing
aid in response to the control signal received from the second hearing aid.
Item 53. A hearing system comprising a first hearing aid, the first hearing aid comprising:
a first microphone for converting sound into electrical signals;
a component for receiving or detecting a signal associated with a phone;
a processor communicatively coupled to the first microphone, wherein the processor
is configured to provide an output based on the electrical signals from the first
microphone;
a first speaker communicatively coupled to the processor, and is configured to provide
an acoustic signal based on the output provided by the processor; and
a first communication device communicatively coupled to the component, wherein the
communication device is configured to transmit a control signal to a second hearing
aid to increase a gain of the second hearing aid in response to a lack of reception
or detection of the signal by the component.
Item 54. A hearing aid comprising:
a microphone for converting sound into electrical signals;
a processor communicatively coupled to the microphone, wherein the processor is configured
to provide an output based on the electrical signals from the microphone;
a speaker communicatively coupled to the processor, and is configured to provide an
acoustic signal based on the output provided by the processor; and
a communication device configured to receive a control signal transmitted from a phone
or a phone accessory;
wherein the hearing aid is configured to detect whether the hearing aid is located
at a position contralateral to a position of the phone with respect to a head of a
user; and
wherein the processor is configured to reduce a gain of the hearing aid to a non-zero
value in response to the control signal received from the phone or the phone accessory.
Item 55. Hearing aid according to item 54, wherein the control signal is from the
phone accessory, and the phone accessory comprises a Bluetooth bridging device.
[0110] Although particular embodiments have been shown and described, it will be understood
that they are not intended to limit the claimed inventions, and it will be obvious
to those skilled in the art that various changes and modifications may be made without
departing from the spirit and scope of the claimed inventions. The specification and
drawings are, accordingly, to be regarded in an illustrative rather than restrictive
sense. The claimed inventions are intended to cover alternatives, modifications, and
equivalents.