TECHNICAL FIELD
[0001] The present invention relates to antennas for hearing aids, in particular the present
invention relates to hearing aids having two or more antennas, such as for example
to a hearing aid having a combination of an electrical antenna and a magnetic antenna.
The hearing aid may be used in a binaural hearing aid system. During operation, the
hearing aid is worn at the ear of a user.
BACKGROUND OF THE INVENTION
[0002] Hearing aids are very small and delicate devices and comprise many electronic and
metallic components contained in a housing small enough to fit in the ear canal of
a human or be located behind the outer ear. The many electronic and metallic components
in combination with the small size of the hearing aid housing impose high design constraints
on radio frequency antennas to be used in hearing aids with wireless communication
capabilities.
[0003] Moreover, the antenna in the hearing aid has to be designed to achieve a satisfactory
performance despite these limitations and other high design constraints imposed by
the size of the hearing aid.
[0004] Still further, in binaural hearing aid systems, the requirements to the quality of
the communication between the hearing aids in the binaural hearing aid system are
ever increasing, and include demands for low latency and low noise, increasing the
requests for effective antennas in the hearing aids.
[0005] In
US 2013/0188803, an ear piece is disclosed having an antenna, wherein the antenna may be a wireless
charging coil antenna, such as a coil antenna wrapped around the battery, and may
be configured to enable inductive charging of the battery when the earpiece is placed
in proximity of a charging station. The document
US 2008/205678 discloses a hearing aid having a communication coil for data transmission particularly
to a second hearing device and the communication coil may also be used for accepting
energy and thereby charging the battery.
WO2014/086392 discloses a hearing aid comprising a first part to be located at least in part in
the ear canal and comprising a first antenna and a second part to be worn outside
the ear canal and comprising a second antenna.
SUMMARY
[0006] It is an object of the present invention to provide a hearing aid with improved wireless
communication capabilities, such as improved wireless communication capabilities between
two hearing aids worn at opposite ears of the user, and/or between a hearing aid and
an accessory device.
[0007] In accordance with the present invention, the above-mentioned and other objects are
obtained by a hearing aid, the hearing aid having a hearing aid housing, the hearing
aid housing having a first end and a second end and comprising a microphone configured
to receive an audio signal, a processing unit configured to process the audio signal
for compensating a hearing loss of a user, a speaker for providing the processed audio
signal to the user, a battery, one or more wireless communication units for wireless
communication, a first antenna for emission and/or reception of an electromagnetic
field being interconnected with one of the one or more wireless communication units,
and a second antenna for emission and/or reception of an electromagnetic field being
interconnected with one of the one or more wireless communication units.
[0008] The battery may be provided closer to a second end of the hearing aid than to a first
end of the hearing aid, and the second antenna may be provided between the battery,
such as between a center axis of the battery, and the second end of the hearing aid.
The first antenna may be provided between the battery, such as between the center
axis of the battery, and the first end of the hearing.
[0009] It is an advantage of the hearing aid that a first antenna and a second antenna are
provided in the hearing aid, increasing the wireless communication capabilities of
the hearing aid.
[0010] According to a further aspect of the invention, a binaural hearing aid system is
disclosed, the binaural hearing aid system comprising a first and a second hearing
aid to be provided at a first and a second ear of the user, respectively, and wherein
one or both of the hearing aids is a hearing aid as herein disclosed.
[0011] The first antenna may be configured for radiation in a first frequency range, and
the second antenna may be configured for radiation in a second frequency range.
[0012] The first antenna may be provided on a first side of the battery and the second antenna
may be provided on a second side of the battery, the first side of the battery and
the second side of the battery may be opposite sides of the battery, either transversely
or longitudinally. The first antenna may be provided between the battery and the first
end of the hearing aid.
[0013] In one or more embodiments, the hearing aid comprises hearing aid electronic components
including the signal processor. The hearing aid electronic components may be provided
on a printed circuit board, and typically, the hearing aid electronic components are
provided on the first side of the battery, such as between the battery and the first
end of the hearing aid. Hereby, the battery provides shielding for the second antenna
with respect to any noise caused by the first antenna and/or the hearing aid electronic
components. Thus, the battery may act as a shielding element for the second antenna.
[0014] The hearing aid may be any hearing aid, such as a hearing aid of the in-the-ear type,
such as in-the-canal type, such as completely-in-the-canal type of hearing aid, etc.,
a hearing aid of the behind-the-ear type, of the receiver-in-the-ear type of hearing
aid, etc.
[0015] Typically, the hearing aid comprises a hearing aid part configured to be positioned
behind the ear of a user and a coupling element for coupling sound or audio to the
ear of a user.
[0016] In one or more embodiments, the hearing aid comprises a first hearing aid part configured
to be positioned behind the ear of a user, a second hearing aid part being configured
to be positioned in the ear of a user, and a coupling element coupling the first hearing
aid part and the second hearing aid part. The first hearing aid part may comprise
the battery, and the second hearing aid part may comprise the speaker. Typically,
the first hearing aid part comprises at least the microphone, the processing unit
configured to process the audio signal for compensating a hearing loss of a user and
the battery, whereas the speaker may be provided in the second hearing aid part. Typically,
also the one or more wireless communication units are provided in the first hearing
aid part. The first hearing aid part may be provided in a first hearing aid housing,
and the second hearing aid part may be provided in a second hearing aid housing. Such
hearing aids are typically referred to as receiver-in-the-ear hearing aids or RIE
hearing aids.
[0017] In one or more embodiments, the hearing aid comprises a first hearing aid part configured
to be positioned behind the ear of a user and a coupling element, coupling the first
hearing aid part and the ear canal of a user. Such hearing aids are typically referred
to as behind-the-ear hearing aids, or BTE hearing aids.
[0018] The coupling element may provide a processed sound to the ear, or the ear canal,
of a user. The coupling element may comprise an electrical connection to a second
hearing aid part comprising a speaker or a receiver for receiving processed audio
signals from the signal processor provided in the first hearing aid part. The coupling
element may comprise a sound tube or a thin tube for providing processed sound to
the ear. The coupling element may comprise an ear hook for providing the processed
sound to the ear of a user.
[0019] In one or more embodiments, the coupling element may comprise at least a part of
the first antenna. Thus, the first antenna may have at least a part of the antenna
extending in the coupling element, and the antenna may have another part in the first
hearing aid part and/or a further part in the second hearing aid part.
[0020] In some embodiments however, the first antenna and the second antenna are provided
within the first hearing aid part, such as within the first hearing aid housing. In
other embodiments, the first antenna may protrude into the coupling element.
[0021] A hearing aid housing, such as the first and/or second hearing aid housing, may comprise
a hearing aid assembly, comprising components of the hearing aid, the hearing aid
assembly being provided in the hearing aid housing. The hearing aid housing typically
comprises a shell, such as a polymer or plastic shell, in a shape configured to be
provided in the ear, in the ear-canal or behind the ear of a user. The coupling element
is typically attachable to the hearing aid housing.
[0022] The one or more wireless communications unit(s) are configured for wireless data
communication, and in this respect interconnected with the first and/or second antenna
for emission and reception of an electromagnetic field. Each of the one or more wireless
communication unit may comprise a transmitter, a receiver, a transmitter-receiver
pair, such as a transceiver, a radio unit, etc. The one or more wireless communication
units may be configured for communication using any protocol as known for a person
skilled in the art, including Bluetooth, WLAN standards, manufacture specific protocols,
such as tailored proximity antenna protocols, such as proprietary protocols, such
as low-power wireless communication protocols, RF communication protocols, magnetic
induction protocols, etc. The one or more wireless communication units may be configured
for communication using same communication protocols, or same type of communication
protocols, or the one or more wireless communication units may be configured for communication
using different communication protocols.
[0023] In one or more embodiments, the first antenna has a longitudinal extension in a first
direction. Thus, the first antenna may have an overall longitudinal extension in a
first direction. The direction may indicate a line or path along which the first antenna
is extending. For example, the overall length of the first antenna may be larger than
the overall width of the first antenna indicating a longitudinal extension in the
lengthwise direction.
[0024] The first antenna may extend in one or more primary planes, such as extend substantially
in a primary plane, such that for example at least 95%, 90%, 85% or 80% of the first
antenna extends in one or more of the primary planes. The one or more primary planes
may be parallel primary planes.
[0025] Thus, for example, the first antenna may comprise a first antenna element extending
along a first side of the hearing aid housing and a second antenna element extending
along a second side of the hearing aid housing.
[0026] The first side of the hearing aid housing may be a first longitudinal side of the
hearing aid housing, and the second side of the hearing aid housing may be a second
longitudinal side of the hearing aid housing. The first side may be opposite the second
side.
[0027] In one or more embodiments, the second antenna may have a longitudinal extension
in a second direction, the second direction being parallel to, or being 0/180 degrees
+/- 35 degrees, to an ear-to-ear axis of a user, when the hearing aid is worn in its
operational position during use.
[0028] The second direction may be orthogonal, such as 90 degrees +/- 35 degrees, to at
least one of the primary planes, such as orthogonal, such as 90 degrees +/- 35 degrees,
to one or more parallel primary planes.
[0029] In one or more embodiments, the second direction is a direction which is 90 degrees
+/- 35 degrees with respect to a side of the hearing aid, wherein the side is adjacent
a head of a user during use.
[0030] Thus, for example, the first antenna may substantially extend in a primary plane,
whereas the second antenna may extend in a second direction being orthogonal to the
primary plane.
[0031] The first antenna may have a longitudinal extension in a first direction, whereas
the second antenna may extend in a second direction being orthogonal to the first
direction.
[0032] In one or more embodiments, the first antenna is configured to have a first radiation
pattern and the second antenna is configured to have a second radiation pattern, the
first radiation pattern being different from the second radiation pattern.
[0033] The near field pattern for the first and/or the second antenna may be a TM polarized
near field. The first and/or second radiation pattern may be dominated by the E-field,
so that a primary part of the overall electromagnetic field, such as more than 75%,
such as more than 80%, such as more than 85%, such as more than 90% of the overall
electromagnetic field, is contributed by the E-field.
[0034] An advantage of the hearing aids as disclosed herein is that an improved wireless
ear-to-ear communication may be achieved for most head sizes, shapes and amount of
hair may be provided. Human heads and human ears vary in size and shape and also the
amount of hair varies from person to person, and thus. Hearing aids adapted for wireless
communications may be susceptible to impairments of for example the ear-to-ear communication
due to e.g. the head of the user. Radio waves from a hearing aid at one side may have
to travel through or around the head in order to reach the hearing aid at the other
ear. Therefore, the human head may be perceived as an obstacle to the ear-to-ear communication.
It is an advantage of the present invention that the antennas as provided in the hearing
aids improve the ear-to-ear communication.
[0035] In one or more embodiments, the first antenna is configured to operate in a first
frequency range, and the second antenna is configured to operate in a second frequency
range. The first frequency range may comprise higher frequencies than the second frequency
range.
[0036] The first antenna may be an electric antenna, and the second antenna may be a magnetic
antenna.
[0037] The first antenna may be configured to operate in a first frequency range, such as
at a frequency above 800 MHz, such as at a frequency above 1 GHz, such as at a frequency
of 2.4 GHz, such as at a frequency between 1.5 GHz and 3 GHz, during use. Thus, the
first antenna may be configured for operation in ISM frequency band. The first antenna
may be any antenna capable of operating at these frequencies, and the first antenna
may be a resonant antenna, such as monopole antenna, such as a dipole antenna, etc.
The resonant antenna may have a length of lambda/4 or any multiple thereof, lambda
being the wavelength corresponding to the emitted electromagnetic field.
[0038] The second antenna may be configured to operate at a second frequency range, such
as at a frequency below 100 MHz, such as at below 30 MHz, such as below 15 MHz, during
use. The second antenna may be configured to operate at a frequency range between
1 MHz and 100 MHz, such as between 1 MHz and 15 MHz, such as between 1MHz and 30 MHz,
such as between 5 MHz and 30 MHz, such as between 5 MHz and 15 MHz, such as between
10 MHz and 11 MHz, such as between 10.2 MHz and 11 MHz.
[0039] Especially, for a second antenna operating at a frequency below 10 MHz or below 100
MHz, is it advantageous that the battery is provided between the second antenna and
the hearing aid electronic components, as the second antenna operating at such frequencies
could be susceptible to noise originating from the hearing aid electronic components.
[0040] In present day communication systems, numerous different communication systems communicate
at or about 2.4 GHz, and thus there is also a significant noise in the frequency range
at or about 2.4 GHz. It is an advantage of the present invention that for some applications
for which the noise may be acceptable, for example for data communication, a first
antenna, such as a first electrical antenna may be used. For other applications, in
which a high noise level may impact the transmission significantly, a second antenna,
such as a magnetic antenna may be used. For example, the second antenna may be used
for streaming of audio.
[0041] In one or more embodiments, the first antenna is configured for data communication
at a first bit rate. In one or more embodiments, the second antenna is configured
for data communication at a second bit rate, the second bit rate being larger than
the first bit rate, such as by a factor 10, such as by a factor 30, a factor 50, a
factor 100, etc.
[0042] The second antenna may be configured for communication using magnetic induction.
It is an advantage of using magnetic induction that typically low latency may be obtained.
Especially when streaming audio is it of importance to keep the latency low, to avoid
delays noticeable by a user. Typically, a delay of less than 100 ms, such as of less
than 50 ms, such as of less than 25 ms, such as of less than 10 ms, such as of less
than 5 ms, such as of less than 1 ms, is preferred.
[0043] It is a further advantage of using magnetic induction for example for communicating
between a first hearing aid and a second hearing aid in a binaural system that for
the low frequencies, i.e. typically below 100 MHz, and corresponding long wavelengths,
the head is not considered as a significant obstacle for the electromagnetic radiation
emitted by the second antenna, thus, the reduction of electromagnetic radiation due
to tissue absorption is reduced when the frequency is reduced.
[0044] In the following the invention is described primarily with reference to a hearing
aid, such as a binaural hearing aid. It is however envisaged that the disclosed features
and embodiments may be used in combination with any aspect of the invention.
BRIEF DESCRIPTION OF THE DRAWING
[0045] The above and other features and advantages of the present invention will become
more apparent to those of ordinary skill in the art by describing in detail exemplary
embodiments thereof with reference to the attached drawings in which:
Fig. 1 shows a schematic view of a hearing aid according to an embodiment of the disclosure,
Fig. 2 shows a BTE hearing aid with an ear hook according to the present disclosure,
Fig. 3 shows a RIE hearing aid according to the present disclosure,
Figs. 4a and 4b show schematically components of a hearing aid according to the present
disclosure,
Fig. 5 shows a three dimensional illustration of a hearing aid according to the present
disclosure, and
Fig. 6 illustrates a shadow effect of the battery.
DETAILED DESCRIPTION OF THE DRAWINGS
[0046] The present invention will now be described more fully hereinafter with reference
to the accompanying drawings, in which exemplary embodiments of the invention are
shown. The invention may, however, be embodied in different forms and should not be
construed as limited to the embodiments set forth herein. Rather, these embodiments
are provided so that this disclosure will be thorough and complete, and will fully
convey the scope of the invention to those skilled in the art.
[0047] As used herein, the term "antenna" refers to an electrical or magnetic device which
converts electric or magnetic power into radio waves. An electric antenna may comprise
an electrically conductive material connected to e.g. a wireless communications unit,
such as a radio chip, a receiver or a transmitter. A magnetic antenna, such as a magnetic
loop antenna, may comprise a coil of electrically conductive material wound around
a core of magnetic material.
[0048] Fig. 1 shows a block-diagram of a hearing aid. In Fig. 1, the hearing aid 10 comprises
a microphone 11 for receiving incoming sound and converting it into an audio signal,
i.e. a first audio signal. The first audio signal is provided to a signal processor
12 for processing the first audio signal into a second audio signal compensating a
hearing loss of a user of the hearing aid. A receiver 13 is connected to an output
of the signal processor 12 for converting the second audio signal into an output sound
signal, e.g. a signal modified to compensate for a user's hearing impairment, and
provides the output sound to a speaker 13. Thus, the hearing instrument signal processor
12 may comprise elements such as amplifiers, compressors and noise reduction systems
etc. The hearing aid may further have a feedback loop for optimizing the output signal.
The hearing aid has one or more wireless communication units 14,16 (e.g. a transceiver)
for wireless communication, each interconnected with an antenna 15, 17 for emission
and reception of an electromagnetic field. The wireless communication units 14, 16
may connect to the hearing aid signal processor 12 and antennas 15, 17 for communicating
with external devices, or with another hearing aid, located at another ear, in a binaural
hearing aid system. The signal processor 12, the one or more wireless communication
units 14, 16, and the antennas 15, 17 may be provided in a hearing aid housing 18.
In some embodiments, the speaker 13 is provided in the first hearing aid part in the
hearing aid housing 18, such as in behind-the-ear (BTE) hearing aids. In other embodiments,
the speaker 13 is provided in a second hearing aid part 19, and for example provided
in the ear of a user, such as in receiver-in-the-ear (RIE) hearing aids.
[0049] In Fig. 2, a hearing aid 10 is shown, the hearing aid 10 being configured to be positioned
behind the ear of a user during use. The hearing aid 10 is a behind-the-ear hearing
aid. The hearing aid 10 comprises a hearing aid housing 18 and a coupling element
20. In Fig. 2, the speaker 13 (not shown in Fig. 2) is positioned in the hearing aid
housing 18, and the coupling element 20 couples the sound to the ear of a user. The
hearing aid further comprises a battery 22 for supplying power to the electronic components,
including the one or more wireless communication units 14, 16, the signal processor
12, etc., of the hearing aid. It is seen that the battery 22 is provided closer to
a second end 26 of the hearing aid housing 18 than to a first end 24 of the hearing
aid housing 18. The hearing aid furthermore comprises a first antenna 15 and a second
antenna 17.
[0050] In Fig. 2, the first antenna 15 is provided within the hearing aid housing 18. It
is however envisaged that the first antenna in some embodiments may extend into the
coupling element 20. The first antenna 15 is an electric antenna, such as a monopole
or dipole electric antenna. The first antenna 15 may be provided on a printed circuit
board 28, and the printed circuit board 28 may be a flexible printed circuit board
28. Further electronic components may be provided on the printed circuit board 28.
[0051] The second antenna 17 is provided or positioned between the battery and a second
end, such as between a center axis 21 of the battery 22 and the second end 26 of the
hearing aid. Typically, the second antenna 17 is a magnetic antenna for establishing
an inductive connection, and the second antenna may be a loop antenna, such as a magnetic
loop antenna, a coil antenna, etc.
[0052] In some embodiments, the battery is a round flat type battery, such as a button cell
type battery or coin cell type battery, and the center axis of the battery is an axis
through a center of the battery from a first flat side of the battery to the other
flat side of the battery. In some embodiments, a further battery axis 27 is defined
as an axis through the center of the battery and a point on the circumference of the
battery, the further battery axis being orthogonal, such as 90 degrees +/- 15 degrees,
such as 90 degrees +/- 35 degrees, to a top side and/or a bottom side of the hearing
aid housing 18 at the position of the center of the battery.
[0053] The battery may be a round flat battery, such as a coin cell type battery type, and
the battery may be provided with the flat sides along longitudinal axes of the hearing
aid housing 18, such as along the longitudinal axes of the first hearing aid part
33.
[0054] The second antenna 17 may be provided so that both the center axis 21 of the battery
and the further battery axis 27 is on one side of the second antenna 17, and the second
end 26 of the hearing aid housing 33, i.e. the first part of the hearing aid housing
33, is on another side of the second antenna 17. Thus, the second antenna 17 may be
positioned between a center plane of the battery, the center plane being established
by the center axis 21 of the battery and the further battery axis 27, and the second
end 26 of the hearing aid housing 33.
[0055] It has been found that hereby, a shadow effect of the battery reduces interference
between the first antenna 15 and the second antenna 17.
[0056] In Fig. 3, another hearing aid 30 is shown. In Fig. 3, like numerals represents the
same elements as shown in Fig. 2. However, in Fig. 3, the hearing aid is a hearing
aid having a first hearing aid part 33 being configured to be positioned behind the
ear of a user, and a second hearing aid part 31 being configured to be positioned
in the ear canal of a user. A coupling element 20 connects the first hearing aid part
33' and the second hearing aid part 31. The hearing aid part 31 is shown as provided
in housing or shell 31. In Fig. 3, a first part 15a of the first antenna 15 is provided
in the first hearing aid part 33, and thus in the first hearing aid housing 33, while
another part 15b of the first antenna 15 is provided in the coupling element 20. The
first part 15a of the first antenna 15 is connected to a first wireless communication
unit, such as a transceiver (not shown in Fig. 3) in the first hearing aid part 33.
[0057] The second antenna 17 is typically connected to a second wireless communication unit,
such as a transceiver, different from the first wireless communication unit.
[0058] Figs. 4a and 4b show schematically a hearing aid according to the present disclosure.
Fig. 4a shows a side view of a hearing aid, such as of a first part 41 of a hearing
aid 40. The first part of the hearing aid, i.e. the first hearing aid housing or part
41, has a longitudinal side 44 and a top side 49. The first hearing aid part 41 has
a first end 24 and a second end 26. The hearing aid 40 has a battery 42, a first antenna
45 and a second antenna 47. It is seen that the battery is provided in the first hearing
aid part 41 closer to the second end 26 of the first part 41 of the hearing aid, than
to the first end 26 of the first hearing aid part 41. Thus, a first distance 2 from
the second end 26 to the center axis 43 of the battery is smaller than a second distance
4 from the first end 24 to the center axis 43 of the battery.
[0059] The first antenna 45 extends along a side, such as a longitudinal side 44, of the
first hearing aid part, or hearing aid housing, 41. The second antenna 47 is a magnetic
loop antenna which has a longitudinal axis 46 out of the plane of the paper. It is
seen that the center axis 43 of the battery 42 is out of the plane of the paper and
thus parallel, such as parallel +/- 15 degrees, such as parallel +/- 35 degrees, with
the longitudinal axis 46 of the magnetic loop antenna 47.
[0060] The further battery axis 48 is seen as being orthogonal to the top side 49 of the
first hearing aid housing 41, such as having an angle of 90 degrees +/- 15 degrees,
such as 90 degrees +/- 35 degrees, to a top side and/or a bottom side of the hearing
aid housing 41 at the position of the center of the battery.
[0061] In Fig. 4b, the hearing aid 40 is seen from an end view, from the second end 26 of
the first hearing aid housing 41. The hearing aid housing 41 has an end side 43 of
the housing or shell of the hearing aid housing 41. The battery 22 is seen to be positioned
closer to the second end 26 than to the first end (not shown in Fig. 4b) and the second
antenna 47 is positioned between the second end 26 and the battery 22. Typically,
the second antenna 47 comprises a magnetic core 38, in the form of a rod of a magnetic
material, and windings 39 of an electrical conductor wound around the magnetic core
38. The magnetic core has a longitudinal axis 5.
[0062] The second antenna 47 may be provided so that the rod 38 of magnetic material is
provided transversal in the first hearing aid housing 41, thus so that the second
antenna has a longitudinal direction orthogonal to longitudinal sides 44 of the first
hearing aid housing. The longitudinal axis 5 may thus form an angle with the longitudinal
sides of the first hearing aid housing of 90 degrees, such as of 90 degrees +/- 15
degrees, such as of 90 degrees +/- 35 degrees. The second antenna 47 may primarily
radiate through end surfaces 42. The magnetic core 38 and the windings 39 may be provided
in a housing (not shown), such as a housing shielding longitudinal parts of the second
antenna 47.
[0063] Fig. 5 shows schematically a 3-dimensional hearing aid. The first antenna 15 is provided
on a PCB 28 in the top of a first hearing aid housing 18. The first antenna is connected
to a transceiver or radio 14. The battery 22 is provided closer to the second end
26 of the hearing aid housing 18 than to the first end of the hearing aid housing
24. It is seen that the second antenna 17 is provided behind the battery with respect
to the first antenna 15, and thus between the battery 22 and the second end 26 of
the hearing aid housing. Coupling element 20 connects the hearing aid housing 18 to
the ear of the user (not shown), either by coupling sound through a coupling element
in the form of an ear hook or a sound tube, or by coupling a signal to a receiver
as positioned in the ear of a user via a coupling element 20 comprising an electrical
signal path.
[0064] Fig. 6 shows schematically a shadow effect of the battery as provided in the first
hearing aid part, such as in the first hearing aid housing. In Fig. 6, the battery
22 is shown having a center axis 21 out of the plane of the paper and a further battery
axis 48, as previously described. At one side of the battery, an antenna will be shielded
by the battery from influence from an antenna at the other side of the battery. Thus,
if the second antenna 17 is provided behind the battery 22, for example in the shadow
region 61, the second antenna 17 is shielded from the first antenna 15 by the battery
22.
[0065] The shadow region 61 behind the battery may be defined as the region behind the center
axis 21 of the battery 22, and more specifically, the shadow region may be defined
as being the region behind the plane defined by the center axis 21 and the further
battery axis 48. The shadow region 61 may be still further specified. Thus, an axis
62, 62' may be defined as an axis having an angle 63 to the further battery axis 48
towards the first antenna 15, the angle 63 being between 0 and 45 degrees. At the
intersection between the axis 62, 62' and the circumference of the battery, a tangent
is provided, and the shadow region is defined by the plane defined by the center axis
21 and the further battery axis 48, and furthermore, by the plane of the tangents
64, 64'. A second antenna 17 provided in the shadow region 61 may thus be shielded
with respect to the antenna 15 provided at the other side of the battery, opposite
the shadow region 61.
[0066] Although particular embodiments have been shown and described, it will be understood
that it is not intended to limit the claimed inventions to the preferred embodiments,
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.
1. A hearing aid (10) comprising a first hearing aid part (18, 33) configured to be positioned
behind the ear of a user and a coupling element (20) coupling the first hearing aid
part and the ear canal of a user, the first hearing aid part (18, 33) having a first
end (24) and a second end (26) and comprising
a microphone (11) configured to receive an audio signal,
a processing unit (12) configured to process the audio signal for compensating a hearing
loss of a user,
a battery (22) provided in the first hearing aid part closer to a second end (26)
of the first hearing aid part than to a first end (24) of the first hearing aid part,
one or more wireless communication units (14, 16) for wireless communication, each
of the one or more wireless communication units for wireless communication comprising
a transmitter-receiver pair,
at least a part of a first antenna (15) adapted for emission and reception of an electromagnetic
field being interconnected with one of the one or more wireless communication units
(14, 16), and
a second antenna (17) adapted for emission and reception of an electromagnetic field
being interconnected with one of the one or more wireless communication units (14,
16), wherein the first antenna (15) is provided between the battery (22) and the first
end of the first hearing aid part, and wherein the second antenna (17) is provided
between the battery (22) and the second end (26) of the first hearing aid part (18,
33).
2. A hearing aid according to claim 1, comprising a second hearing aid part (31) being
configured to be positioned in the ear of a user, wherein the coupling element (20)
couples the first hearing aid part (18, 33) and the second hearing aid part.
3. A hearing aid according to claim 2, wherein the second hearing aid part (31) comprises
a speaker.
4. A hearing aid according to claim 2, wherein the coupling element (20) comprises at
least a part of the first antenna.
5. A hearing aid according to any of the preceding claims, wherein the second antenna
(17) has a longitudinal extension in a second direction.
6. A hearing aid according to claim 5, wherein the first antenna (electric) is provided
in one or more planes, the one or more planes being orthogonal, such as 90 degrees
+/- 35 degrees, to the second direction.
7. A hearing aid according to any of the preceding claims, wherein the first antenna
(15) is configured for radiation in a first frequency range, and the second antenna
(17) is configured for radiation in a second frequency range.
8. A hearing aid according to any of the preceding claims, wherein the first antenna
(15) is an electric antenna and the second antenna (17) is a magnetic antenna.
9. A hearing aid according to any of the preceding claims, wherein the first antenna
(15) is configured to operate at a frequency above 800 MHz, such as at a frequency
above 1 GHz, such as at a frequency of 2.4 GHz, during use.
10. A hearing aid according to any of the preceding claims, wherein the second antenna
(17) is configured to operate at a frequency below 100 MHz, such as at below 10 MHz,
during use.
11. A hearing aid according to any of the preceding claims, wherein the second antenna
(17) is configured to operate at a frequency between 1 MHz and 100 MHz.
12. A hearing aid according to any of the preceding claims, wherein the first antenna
(15) is configured for data communication at a first bit rate.
13. A hearing aid according to any of the preceding claims, wherein the second antenna
(17) is configured for data communication at a second bit rate, the second bit rate
being larger than the first bit rate, such as by a factor 10.
14. A binaural hearing aid system comprising a first and a second hearing aid to be provided
at a first and a second ear of the user, respectively, wherein one or both of the
hearing aids is a hearing aid according to any of claims 1-13.
1. Hörgerät (10) umfassend einen ersten Hörgeräteteil (18, 33), der ausgelegt ist, um
hinter dem Ohr eines Benutzers angeordnet zu werden, und ein Koppelelement (20), das
den ersten Hörgeräteteil und den Gehörgang eines Benutzers koppelt, wobei der erste
Hörgeräteteil (18, 33) ein erstes Ende (24) und ein zweites Ende (26) aufweist und
umfasst
- ein zum Empfangen eines Audiosignals ausgelegtes Mikrofon (11),
eine Verarbeitungseinheit (12), die zur Verarbeitung des Audiosignals zum Ausgleich
eines Hörverlusts eines Benutzers ausgelegt ist,
eine Batterie (22), die im ersten Hörgeräteteil näher an einem zweiten Ende (26) des
ersten Hörgeräteteils als an einem ersten Ende (24) des ersten Hörgeräteteils vorgesehen
ist,
eine oder mehrere drahtlose Kommunikationseinheiten (14, 16) zur drahtlosen Kommunikation,
wobei jede der einen oder mehrerer drahtloser Kommunikationseinheiten zur drahtlosen
Kommunikation ein Sender-Empfänger-Paar umfasst,
zumindest einen Teil einer ersten Antenne (15), welche für das Aussenden und Empfangen
eines elektromagnetischen Feldes angepasst ist, das mit einer der einen oder mehrerer
drahtloser Kommunikationseinheiten (14, 16) verbunden ist, und
eine zweite Antenne (17), die für das Aussenden und Empfangen eines elektromagnetischen
Feldes angepasst ist, das mit einer der einen oder mehrerer drahtloser Kommunikationseinheiten
(14, 16) verbunden ist,
wobei die erste Antenne (15) zwischen der Batterie (22) und dem ersten Ende des ersten
Hörgeräteteils vorgesehen ist, und
wobei die zweite Antenne (17) zwischen der Batterie (22) und dem zweiten Ende (26)
des ersten Hörgeräteteils (18, 33) vorgesehen ist.
2. Hörgerät nach Anspruch 1, das einen zweiten Hörgeräteteil (31) umfasst, der ausgelegt
ist, um in dem Ohr eines Benutzers angeordnet zu werden, wobei das Koppelelement (20)
den ersten Hörgeräteteil (18, 33) und den zweiten Hörgeräteteil koppelt.
3. Hörgerät nach Anspruch 2, wobei der zweite Hörgeräteteil (31) einen Lautsprecher umfasst.
4. Hörgerät nach Anspruch 2, wobei das Koppelelement (20) zumindest einen Teil der ersten
Antenne umfasst.
5. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die zweite Antenne (17) eine
Längserstreckung in einer zweiten Richtung aufweist.
6. Hörgerät nach Anspruch 5, wobei die erste Antenne (elektrisch) in einer oder mehreren
Ebenen vorgesehen ist, wobei die eine oder mehrere Ebenen orthogonal, wie beispielsweise
90 Grad +/- 35 Grad, zur zweiten Richtung verlaufen.
7. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die erste Antenne (15) zur
Ausstrahlung in einem ersten Frequenzbereich ausgelegt ist, und die zweite Antenne
(17) zur Ausstrahlung in einem zweiten Frequenzbereich ausgelegt ist.
8. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die erste Antenne (15) eine
elektrische Antenne ist, und die zweite Antenne (17) eine magnetische Antenne ist.
9. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die erste Antenne (15) so
ausgelegt ist, dass sie während der Verwendung bei einer Frequenz oberhalb von 800
MHz, wie beispielsweise bei einer Frequenz oberhalb von 1 GHz, wie beispielsweise
bei einer Frequenz von 2,4 GHz, in Betrieb ist.
10. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die zweite Antenne (17) so
ausgelegt ist, dass sie während der Verwendung bei einer Frequenz unterhalb von 100
MHz, wie beispielsweise unterhalb von 10 MHz, in Betrieb ist.
11. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die zweite Antenne (17) so
ausgelegt ist, dass sie bei einer Frequenz zwischen 1 MHz und 100 MHz in Betrieb ist.
12. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die erste Antenne (15) zur
Datenkommunikation bei einer ersten Bitrate ausgelegt ist.
13. Hörgerät nach einem der vorhergehenden Ansprüche, wobei die zweite Antenne (17) zur
Datenkommunikation bei einer zweiten Bitrate ausgelegt ist, wobei die zweite Bitrate,
wie beispielsweise um einen Faktor 10, größer als die erste Bitrate ist.
14. Binaurales Hörgerätesystem, das ein erstes und ein zweites Hörgerät umfasst, die jeweils
an einem ersten und einem zweiten Ohr des Benutzers vorzusehen sind, wobei eines oder
beide der Hörgeräte ein Hörgerät nach einem der Ansprüche 1 bis 13 sind.
1. Prothèse auditive (10) comprenant une première partie de prothèse auditive (18, 33)
configurée pour être positionnée derrière l'oreille d'un utilisateur et un élément
de couplage (20) couplant la première partie de prothèse auditive et le canal auditif
d'un utilisateur, la première partie de prothèse auditive (18, 33) ayant une première
extrémité (24) et une deuxième extrémité (26) et comprenant
un microphone (11) configuré pour recevoir un signal audio,
une unité de traitement (12) configurée pour traiter le signal audio pour compenser
une perte auditive d'un utilisateur,
une batterie (22) pourvue dans la première partie de prothèse auditive plus près d'une
deuxième extrémité (26) de la première partie de prothèse auditive qu'à une première
extrémité (24) de la première partie de prothèse auditive, une ou plusieurs unités
de communication sans fil (14, 16) pour une communication sans fil, chacune de l'une
ou de plusieurs unités de communication sans fil pour une communication sans fil comprenant
une paire d'émetteur-récepteur,
au moins une partie d'une première antenne (15) adaptée pour l'émission et la réception
d'un champ électromagnétique étant interconnectée avec l'une de l'une ou de plusieurs
unités de communication sans fil (14, 16), et
une deuxième antenne (17) adaptée pour l'émission et la réception d'un champ électromagnétique
étant interconnectée avec l'une de l'une ou de plusieurs unités de communication sans
fil (14, 16),
la première antenne (15) étant pourvue entre la batterie (22) et la première extrémité
de la première partie de prothèse auditive, et
la deuxième antenne (17) étant pourvue entre la batterie (22) et la deuxième extrémité
(26) de la première partie de prothèse auditive (18, 33).
2. Prothèse auditive selon la revendication 1, comprenant une deuxième partie de prothèse
auditive (31) étant configurée pour être placée dans l'oreille d'un utilisateur, dans
lequel l'élément de couplage (20) couple la première partie de prothèse auditive (18,
33) et la deuxième partie de prothèse auditive.
3. Prothèse auditive selon la revendication 2, dans laquelle la deuxième partie de prothèse
auditive (31) comprend un haut-parleur.
4. Prothèse auditive selon la revendication 2, dans laquelle l'élément de couplage (20)
comprend au moins une partie de la première antenne.
5. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la deuxième antenne (17) a une extension longitudinale dans une deuxième direction.
6. Prothèse auditive selon la revendication 5, dans laquelle la première antenne (électrique)
est prévue dans un ou plusieurs plans, l'un ou plusieurs plans étant orthogonaux,
tels que 90 degrés +/- 35 degrés, dans la deuxième direction.
7. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la première antenne (15) est configurée pour un rayonnement dans une première gamme
de fréquences, et la deuxième antenne (17) est configurée pour un rayonnement dans
une deuxième gamme de fréquences.
8. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la première antenne (15) est une antenne électrique, et la deuxième antenne (17) est
une antenne magnétique.
9. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la première antenne (15) est configurée pour fonctionner à une fréquence supérieure
à 800 MHz, par exemple à une fréquence supérieure à 1 GHz, par exemple à une fréquence
de 2,4 GHz, pendant l'utilisation.
10. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la deuxième antenne (17) est configurée pour fonctionner à une fréquence inférieure
à 100 MHz, par exemple inférieure à 10 MHz, pendant l'utilisation.
11. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la deuxième antenne (17) est configurée pour fonctionner à une fréquence comprise
entre 1 MHz et 100 MHz.
12. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la première antenne (15) est configurée pour la communication de données à un premier
débit binaire.
13. Prothèse auditive selon l'une quelconque des revendications précédentes, dans laquelle
la deuxième antenne (17) est configurée pour une communication de données à un deuxième
débit binaire, le deuxième débit binaire étant supérieur au premier débit binaire,
par exemple d'un facteur 10.
14. Système de prothèse auditive binaurale comprenant une première et une deuxième prothèse
auditive à fournir respectivement à une première et à une deuxième oreille de l'utilisateur,
l'une ou les deux prothèses auditives étant une prothèse auditive selon l'une quelconque
des revendications 1 à 13.