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EP 3 669 299 B9 |
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CORRECTED EUROPEAN PATENT SPECIFICATION |
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Note: Bibliography reflects the latest situation |
(15) |
Correction information: |
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Corrected version no 1 (W1 B1) |
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Corrections, see Description |
(48) |
Corrigendum issued on: |
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18.05.2022 Bulletin 2022/20 |
(45) |
Mention of the grant of the patent: |
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02.03.2022 Bulletin 2022/09 |
(22) |
Date of filing: 14.08.2018 |
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(51) |
International Patent Classification (IPC):
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(86) |
International application number: |
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PCT/US2018/046608 |
(87) |
International publication number: |
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WO 2019/036412 (21.02.2019 Gazette 2019/08) |
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CARD WITH DYNAMIC FEATURE
KARTE MIT DYNAMISCHEM MERKMAL
CARTE DOTÉE D'UNE CARACTÉRISTIQUE DYNAMIQUE
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Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
(30) |
Priority: |
15.08.2017 US 201762545630 P
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Date of publication of application: |
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24.06.2020 Bulletin 2020/26 |
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Proprietor: Composecure LLC |
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Somerset, NJ 08873 (US) |
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Inventor: |
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- LOWE, Adam
Somerset
NJ 08873 (US)
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(74) |
Representative: Scheele Wetzel Patentanwälte |
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Bayerstraße 83 80335 München 80335 München (DE) |
(56) |
References cited: :
EP-A1- 3 107 044 WO-A1-2015/047364
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WO-A1-2008/124335 US-A1- 2009 050 693
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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BACKGROUND OF THE INVENTION
[0001] Smart materials are substances that have one or more properties that can be significantly
changed in a controlled fashion by varying external factors. Two known smart materials
are electroactive polymers and shape memory alloys.
[0002] Electroactive polymers (EAP) are a class of materials that change in size or shape
when exposed to an electric field. EAPs are commonly classified into two families:
ionic EAPs and electronic EAPs. Ionic EAPs are activated by an electrically induced
transport of ions and/or molecules. Electronic EAPs are activated by electrostatic
forces. Conventional polymers used most often as actuators include poly(vinylidene
fluoride) (PVdF)-based polymers, conjugated polymers, and perflourinated ionamers.
[0003] A shape memory alloy (SMA) is a material that "remembers" its original shape when
deformed. One well-known shape memory material is nitinol (NiTi) - an alloy of nickel
and titanium. Nitinol and its properties can be modified to a great extent by changes
in its composition, mechanical working, and heat treatment. Certain properties of
Nitinol are listed in Table 1. Nitinol is commonly manufactured into sheeting, foil,
wire, and tubing. At low temperatures, an SMA, such as nitinol, is in the martensite
phase, which is ductile and can be easily deformed. Heating the deformed material
above a threshold temperature causes a phase change to austenite, at which the deformation
induced at the lower temperature can be recovered.
TABLE 1 -- Properties of nitinol
|
Austenite |
Martensite |
Young's Modulus |
85 GPa |
28-41 GPa1 |
Yield Strength |
195-690 MPa |
70-140 MPa |
Thermal Conductivity |
0.18 W/cm∗deg.C |
0.086 W/cm∗deg.C |
Ultimate Tensile Strength |
895 MPa (when fully annealed) |
Elongation at Failure |
25 to 50% |
Density |
6.45 gm/cm3 |
1Nonlinear with temperature |
[0004] Actuators comprising SMA materials may have a one-way effect or a two-way effect.
An SMA actuator with a one-way effect can recover a deformation when heated to austenite,
but retains that shape when cooled to martensitic. An SMA with a two-way effect has
two stable shapes -- one in the austenite phase and the other in the martensitic phase
-- and does not require an external force to re-deform the material once it recovers
its shape.
[0005] Nitinol materials may also change color when exposed to heat. The incorporation of
nitinol in transaction cards that changes color when heated in response to a stimulus,
such as to show that the card is invalid, is described in
U.S. Patent No. 5,412,192, which also describes card embodiments in which locally generated heat causes heat-sensitive
plastic to shrink and highlight raised characters on the surface of the card.
[0006] US 2009/050693 as a further example describes a transaction card that includes an audio circuit,
housing and an account identifier. The audio circuit includes memory configured to
store an audio file having audio properties. The audio circuit is configured to transform
at least one audio property of the audio file such that upon playback of the audio
file, the audio file sounds different than when the audio file was initially stored
to the memory. The housing substantially encloses the audio circuit, and the account
identifier links the transaction card to an account or record. The account identifier
is machine readable.
[0007] There is a need in the field of identification cards and transaction cards, such
as credit cards, debit cards, smart cards, and the like, to provide robust, two-way,
tactile features. Efforts to provide transaction cards with tactile feedback using
EAPs have been documented, such as in U.S. Patent Application Publication No.
US20060289657. EAPs are generally not ideal for use in applications that require relatively large
displacements in bending motion, fast switching response, low operating voltage, and
durable operation. Known ionic EAPs generally have slow actuation response times and
relatively minimal displacement under low-voltage operation. While currently known
electronic EAPs have very fast response times and high strains, operation voltages
in the range of 100 V/µm are currently required.
[0008] Thus, there remains a need in the field of transaction and identification cards to
provide dynamic features having characteristics not previously offered.
SUMMARY OF THE INVENTION
[0009] The invention is defined in the independent claims. Further advantageous embodiments
are defined in the dependent claims.
[0010] In any of the foregoing methods of conducting activities, movement of the actuator
from the inactivated to the activated position may create a tactile indicator on the
surface of the card that is perceptible to human touch. In embodiments comprising
a covering over the actuator, the actuator may have a planar surface parallel to the
planar surface of the card such that the covering over the actuator is flush with
the planar surface of the card in the inactivated position and offset relative to
the planar surface of the card in the activated position. Activation of the actuator
from the inactivated position to the activated position in any of the foregoing embodiments
may connect or break an electrical circuit that enables or disables a function of
the card.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011]
FIG. 1 depicts an exemplary nitinol out-of-plane actuator in an exemplary transaction
card.
FIG. 2 depicts various exemplary out-of-plane actuators, including (a) a bridge type,
(b) a diaphragm type, (c) a free-standing cantilever type, (d) and a bimorph cantilever
type.
FIG. 3 depicts an exemplary circuit comprising an exemplary dynamic feature.
FIG. 4 depicts an exemplary circuit in which a dynamic actuator opens or closes an
electrical circuit.
FIG. 5 depicts an exemplary circuit in which a receiver or transceiver in communication
with the circuit opens or closes the circuit that actuates the actuator.
DETAILED DESCRIPTION OF THE INVENTION
[0012] SMA (e.g. nitinol) actuators ideal for use in card applications preferably comprise
thin sheet SMA materials. Various fabrication methods for developing nitinol are known.
One common method is casting, which is associated with high temperature melting levels,
which may degrade functional properties due to the secondary phase transformations.
Casting may require machining, which may be costly for extremely ductile alloys like
nitinol, due to tool wear. Another well-known nitinol manufacturing process is powder
metallurgy (PM). PM creates near-net-shape parts that require less machining, but
may have high porosity and impurities. Additive manufacturing has also been used to
create NiTi parts, having properties that vary based on printing method, but in general,
may perform better than parts made via casting and powder metallurgy.
[0013] Once a nitinol sheet is manufactured, its properties may be adjusted through heat
treatment to meet design requirements. The temperature at which nitinol "remembers"
its high-temperature form generally can range from 0°C to 105°C. The shape transformation
typically happens over the range of just a few degrees.
[0014] The mechanical properties of nitinol can be modified by changing its composition.
Some alloys have close to a 50-50 balance of Ni and Ti, but this ratio can be changed
to suit the application. Ni-rich nitinol is generally very stable and has a diverse
microstructure. This helps stabilize the shape memory behavior and makes it easy for
use in bulk materials. Shape memory properties can be further modified by adding elements
that are chemically similar to Ni and Ti. For example, replacing some Ni with Cu can
improve the actuation response and fatigue properties. The addition of Cu to nitinol
also reportedly increases the high temperature strength of this alloy. Cu is also
used for this purpose in CuAINi alloys -- another family of shape memory alloys. Advantages
of NiTiCu and CuAINi SMA alloys are the higher operating temperatures of near 200°C.
EXEMPLARY DYNAMIC FEATURES
[0015] One exemplary use of an SMA feature in a card may be for creating a printed feature
that can rise and lower in different conditions. For example, as shown in FIG. 1,
a financial services corporation logo (e.g. Visa, American Express, Citi Bank, Bank
of America, etc.) or other similar indicia may rise relative to the plane defined
by the surface of the card when the card is inserted into a chip reader. This provides
the user with tactile feedback to show when the card has been inserted properly, as
well as provide an additional visual feature to emphasize the card brand.
[0016] The foregoing feature may be accomplished by using a two-way nitinol SMA actuator
activated by "joule heating," which occurs when an electric current passes through
a conductor. Current drawn from the point-of-sale terminal when the contacts are inserted
into a payment machine flows through the SMA, causing the temperature in the SMA actuator
to rise, and activating the memory response of the metal. The SMA actuator may be
configured to achieve the desired shape by directionally deforming so that it becomes
offset relative to the plane of the card, such as in a manner that causes it to push
up or pull down on a flexible portion of a covering layer, such as silicone, over
the actuator, so that the covering, or at least a portion thereof in contact with
the actuator, is elevated or sunken relative to the plane of the card, respectively.
[0017] As illustrated in Fig. 3, the dynamic feature 306 may be part of a circuit 300 coupled
to a power source 302 (the coupling may be a physical connection or wireless connection,
such as via capacitive or inductive coupling). In embodiments in which the dynamic
feature is intended to show a temporary state (such as to signal correct placement
in a chip reader), the SMA actuator comprises a two-way SMA actuator that reverts
to its relaxed (non-deformed) state as the temperature in the SMA dissipates below
the threshold temperature, after disconnection from the power source. The power operative
to deform the SMA may be provided by a physical connection, such as with contacts
that mate with a POS terminal (such as shown in the embodiment depicted Fig. 1) or
other type of chip reader, or by a wireless connection, such as an inductive connection,
such as via an inductive RF circuit. In other embodiments, the power source may comprise
a battery embedded in the card. Some circuits may include features for receiving power
from multiple potential sources (e.g. dual interface circuitry that is capable of
receiving power via contacts or inductively, or circuits comprising a battery that
is used for providing power assistance when activated via the receipt of power inductively
or via the contacts). As shown schematically in Figs. 3 and 4, power sources 302 and
402 represent the local source of power to the card (e.g. the RFID tag, the contacts,
or the battery).
[0018] In some embodiments, such as in the exemplary embodiment illustrated in FIG. 5, circuit
500 may comprise an RF receiver or transceiver 508, such as a receiver or transceiver
configured to communicate via wireless technology, such as short-range wireless technology
(e.g. Bluetooth
®), such as may be emitted by a mobile device. Thus, in an exemplary embodiments, wireless
commands emanating from a transmitter 510, such as a transmitter connected to a computer
processer, such as a processor embedded in a cell phone or other mobile device, may
be used for providing a signal capable of causing the actuator to actuate from the
inactivated to the activated position (and/or vice versa). Although schematically
illustrated as a switch 506 in communication with transceiver 508, it should be understood
that the switch may be part of the transceiver or the receipt or non-receipt of power
from power source 502 may operate as a switch and the transceiver, in circuits in
which the receipt of a signal inductively provides the power required to operate the
actuator. As is understood in the art, wireless signals transmitted by a transmitter
in a mobile device may be controlled by a computer processor embedded in the device
in accordance with programmed instructions readable by the processor. As is common
in the field of mobile device application software, the instructions may be stored
in part on the device and in part "in the cloud" on servers accessible via a wireless
network in communication with the device. The application software for controlling
the signals as described may include a user interface for permitting a user to instruct
emission of the signal and/or may include an interface controlled by a remote source
through a network connected to the device.
[0019] In other embodiments, one or more one-way SMA features may be part of a circuit configured
to receive a pulse from the power source for the purposes of causing a one-time deformation.
For example, logic in the card reader may be programmed to send a characteristic signal
configured to activate a self-destruct circuit when the card has become expired or
de-activated because of fraud, and such a one-way feature may be disposed in a location
that is sufficiently disruptive to render the card fully or partially inoperative
(such as positioned adjacent the contacts for being read by a POS terminal, along
the magnetic stripe where the feature renders the card too thick to swipe in a typical
card reader or sufficiently disrupts readability of the magnetic strip by a standard
reader, in a location where the deformation breaks a connection sufficient to disable
an RFID circuit, or in all or some combination of the above). In another embodiment,
such circuit 400 illustrated in Fig. 4, dynamic feature 404 may essentially operate
as a switch that deforms upon activation by receipt of power from power source 402
to move into a position that creates an electrical connection for activating a functional
component 406 (or that breaks an electrical connection for de-activating the functional
component). Such a deformation for creating a connection may be formed using a one-way
SMA or a two-way SMA, depending upon the functionality desired. Some embodiments may
have both two-way and one-way SMA features, which features may be activated in different
circumstances, and may have multiple circuits. The schematic circuits shown in Figs.
3 and 4 are illustrative only, and additional components may be included in each circuit.
[0020] In preferred two-way actuator embodiments, the SMA actuator is an "out-of-plane"
actuator with a displacement normal to the surface of the card. Figure 2 shows exemplary
out-of-plane actuators, including (a) a bridge type, (b) a diaphragm type, (c) a free-standing
cantilever type, (d) and a bimorph cantilever type that have so far been reported.
While the invention is not limited to the types of actuators depicted, or to any one
of those depicted, a diaphragm-type actuator may be highly desirable due to its large
force and stroke.
[0021] A layer of deformable, flexible surface covering, such as silicone or a plastic sheet
material having suitable properties to permit a desired amount of deformation, may
be disposed on top of the SMA actuator. While depicted with a printed logo on the
covering in Fig. 2, which logo has a visual contrast to the rest of the card, the
invention is not limited to any particular indicia on the coating or relative difference
in shading or coloration of the covering layer versus the rest of the card. When the
SMA actuator is in an inactivated state, the covering is disposed flush with the surface
of the card. When the SMA deforms and pushes on the underside of the covering, the
covering assumes a desired shape and position relative to the rest of the planar surface
of the card. When the stimulus is removed, such as when the card is removed from a
reader, the SMA will revert to its original, non-activated shape and the covering
will once again lie flush with the planar surface of the card.
Technical Considerations
[0022] Nitinol SMAs have a relative high work output per unit volume, as well as a high
power/mass ratio. Depending on the thickness of the material, nitinol alloys often
have an average frequency response time, large strain output, and joule heating activation.
Nitinol alloys are capable of producing a strain output of up to 8 to 10%. One concern
when using any material in cyclic motion is fatigue. Studies on the fatigue effects
of NiTi show that some alloys have a fatigue limit, but can undergo a nearly unlimited
number of cycles, so long as the stress is kept below the fatigue limit. For example,
if the strain is kept below 2%, the fatigue life of the actuator can exceed more than
a million cycles.
[0023] Cards with SMA actuators must generate sufficient current to activate the shape memory
effect. The resistivity of NiTi is approximately 90 µΩ
∗cm. The resistance of a metal may be calculated using Equation 1:

where p is the resistivity, I is the length, and A is the cross-sectional area.
[0024] Combining Ohm's law and Joule's law provides Equations 2-4:

where Q is the heat transferred, I is the current through the metal, t is the time
the current is flowing, m is the mass, c is the specific heat of the SMA alloy, and
ΔT is the change in temperature.
[0025] The foregoing equations can be used to determine the amount of time require to achieve
a desired temperature change with a given current and/or to determine the current
required to produce a given temperature change over a given amount of time.
[0026] The actuator requires an actuation force sufficient to cause the covering over the
SMA to rise by a desired amount. Insufficient force will prevent the printed logo
from rising adequately off of the card. Embodiments comprising sputter-deposited nitinol
on a polyimide film may be particularly well suited for maximizing actuation power,
although the invention is not limited to any particular material deposited, method
of deposition, or type of film. Other suitable non-metal films may include polydimethylsiloxane
(PDMS) or any other suitable polymeric organosilicon compound, polymethyl methacrylate
(PMMA) or any other suitable synthetic resin, and polyamide, without limitation. Force
in such actuators can be calculated using the Equation 5:

where E
s is the Young's modulus of elasticity, I
s is the second moment of area, t
s is the thickness of the polyimide substrate, b is the width and L is the length of
the cantilever, and d is the displacement of the free edge. Therefore, the force is
approximately proportional to the cube of the polyimide thickness in sputter-deposited
nitinol over polyimide film actuators.
[0027] Preferably, heating the metal sufficiently to activate the SMA is controlled and
cannot be activated by the environment, else an uncontrolled environment with a high
temperate may cause unintended activation. Heat absorbing and/or dissipating material
surrounding the SMA, such as copper, aluminum, or any other material known for its
relatively high heat transfer characteristics that make it ideal for use as a heat
sink, may be included to absorb environmental heat to minimize heat transferred to
the memory alloy.
[0028] Nitinol sheeting can be purchased through manufacturers in "untrained" or pre-memory-trained
condition. Thus, nitinol actuators may procured ready to be inserted into the cards
or "trained" steps may be included as part of the card assembly process.
[0029] In one embodiment, a shape memory actuator may be installed in a payment card in
a pocket cut into the card via any method known in the art, such as, for example,
using similar methods used for creating chip pockets, such as using a CNC machine.
The SMA actuator and any covering are then placed in the cutout. The edges of the
sheet are secured in the pocket such as by pinning the corners or gluing the edges
of the sheet in the pocket.
[0030] In another embodiment, the SMA actuator may be added into the build of a card before
lamination. Then, a pocket is cut though the top layer of the laminated card to expose
the SMA actuator, and the covering layer is placed on top of and adhered to the surface
of the SMA actuator. The top layer of the card may comprise any materials, including
metal, such as but not limited to stainless steel or any metal known in the art for
making a metal card, or plastic.
[0031] SMA actuators provide payment card manufacturers with a tool to differentiate themselves
from competitors, and provide an end user with tactile feedback, such as to indicate
payment. Current drawn through the payment terminal when the chip is inserted flows
to the SMA, heating the SMA until it deforms to its predetermined shape. This pushes
up a covering, such as a silicone overlay, over the SMA, to create a raised, tactile
pattern relative to the planar surface of the card.
[0032] Although discussed extensively with respect to exemplary embodiments herein in the
context of SMA actuators, it should be understood that the invention is not limited
to the use of SMA actuators, and may feature any type of micro-scale motion activators,
actuators or sensors, including microfluidic devices or devices comprising any types
of smart materials known in the art that are suitable for embedding in a transaction
card and providing the functionality described herein may be provided. In particular,
actuators with reversible motion (capable of repeatedly moving back and forth between
the activated and inactivated stats) may be particularly useful in many of the embodiments
described herein.
[0033] Although the invention is illustrated and described herein with reference to specific
embodiments, the invention is not intended to be limited to the details shown.
1. A transaction or identification card having a width, a length, and at least one planar
surface extending across the width and length, the card comprising:
a dynamic feature (306) comprising an actuator having an inactivated position and
an activated position, wherein the inactivated position has at least one reversible
difference from the activated position relative to the planar surface of the card;
and
a circuit (300, 500) comprising the actuator and configured to connect to a power
source (302, 402) , the circuit (300, 500) configured to provide sufficient power
to the actuator when connected to the power source (302, 402) to cause the actuator
to move from the inactivated position to the activated position,
characterized in that
the at least one reversible difference comprises one or more of a perceptible tactile
and/or visual difference.
2. The transaction or identification card of claim 1, wherein the dynamic feature (306)
has an exposed planar surface that is disposed substantially flush with the at least
one planar surface of the card in the inactivated position and offset relative to
the at least one planar surface of the card in the activated position.
3. The transaction or identification card of claim 2, wherein the dynamic feature (306)
comprises the actuator disposed in a cutout in the surface of the card, with a covering
over the actuator, wherein the covering lies flush with the at least one planar surface
of the card in the inactivated position.
4. The transaction or identification card of claim 3, wherein the covering comprises
printed indicia.
5. The transaction or identification card of claim 4, wherein the printed indicia comprises
a logo corresponding to an issuer or sponsor of the card.
6. The transaction or identification card of any one of claims 1-5, wherein the at least
one planar surface comprises metal.
7. The transaction or identification card of any one of claims 1-6, wherein the dynamic
feature (306) comprises a shape memory alloy having the inactivated position in a
first material state of the alloy and the activated position in a second material
state of the alloy, wherein the first state is different from the second state.
8. The transaction or identification card of any one of claims 1-7, wherein the dynamic
feature (306) comprises a shape memory alloy having the inactivated position in a
relaxed material state of the alloy and the activated position in a deformed material
state of the alloy, wherein the relaxed state is different from the deformed state
and the power is sufficient to cause the shape memory alloy to transition from the
relaxed state to the deformed state.
9. The transaction or identification card of claim 8, wherein the power source (302,
402) comprises a battery embedded in the card.
10. The transaction or identification card of claims 8 or 9, wherein the power source
(302, 402) comprises a terminal configured to receive a set of metal contacts, and
the card comprises metal contacts on at least one surface of the card positioned for
mating with the terminal.
11. The transaction or identification card of any one of claims 8-10, wherein the power
source (302, 402) comprises transmitted power and the card comprises an antenna configured
to receive the transmitted power.
12. The transaction or identification card of claim 11, wherein the circuit (300, 500)
comprises an inductive RF circuit (300, 500) .
13. The transaction card of any one of claims 8-12, further comprising an RF receiver
or transceiver (508) configured to receive a signal operable to cause the actuator
to actuate.
14. The transaction or identification card of any one of claims 7 to 13, wherein the shape
memory alloy comprises an out-of-plane actuator.
15. The transaction or identification card of any one of claims 7 to 14, wherein the shape
memory alloy actuator comprises a diaphragm actuator.
16. The transaction or identification card of any one of claims 7 to 15, wherein the shape
memory alloy comprises nickel and titanium.
17. The transaction or identification card of claim 16, wherein the alloy further comprises
copper.
18. The transaction or identification card of any one of claims 14-17, wherein the shape
memory alloy comprises an actuator comprising a sputter-deposited metal alloy on a
non-metal film.
19. The transaction or identification card of claim 18, wherein the sputter-deposited
metal alloy comprises nitinol and the non-metal film comprises a compound selected
from the group consisting of: polyimide, polyamide, PDMS, and PMMA.
20. The transaction or identification card of any one of claims 14-19, wherein the shape
memory alloy comprises a two-way actuator.
21. The transaction or identification card of any one of claims 14-19, wherein the shape
memory alloy comprises a one-way actuator.
22. The transaction or identification card of any one of claims 1-21, wherein the activation
or the deactivation of the actuator causes completion of or a discontinuity in an
electrical circuit (300, 500) .
23. A process for making a transaction or identification card of any one of claims 1-22,
comprising the steps of:
providing the card body ;
cutting a pocket in the at least one planar surface;
providing the circuit comprising the actuator having the at least one reversible difference
such that the actuator is inserted in the pocket the at least one reversible difference
comprising one or more of the perceptible tactile and/or visual difference; and
disposing a covering over the actuator.
24. A process for making a transaction or identification card of any one of claims 1-22
:
providing the card body as a laminated card body with the circuit (300, 500) comprising
the actuator, the actuator having the at least one reversible difference comprising
one or more of the perceptible tactile and/or visual difference and being embedded
in the laminated card body in a position unexposed to the planar surface of the card
body;
cutting a pocket in the at least one planar surface to expose the actuator; and
disposing a covering over the actuator.
25. A method of conducting an activity using the transaction or identification card of
any one of claims 1-22 , the method comprising the steps of:
providing the transaction card or identification card ;
coupling the card to the power source (302, 402) ; and
providing sufficient power to the actuator to cause the actuator to actuate from the
inactivated position to the activated position.
26. A system for controlling a transaction or identification card, the system comprising:
the transaction or identification card of any one of claims 1-22 ;
an RF receiver or transceiver (508) configured to receive a signal operable to cause
the actuator to actuate;
an electronic device configured to communicate with the RF receiver or transceiver
(508) by emitting the signal.
27. The system of claim 26, wherein the electronic device comprises a computer processor
embedded in a mobile device and responsive to programmed instructions readable by
the processor.
28. The system of claim 27, wherein the programmed instructions readable by the processor
include instructions for providing a user interface configured to permitting a user
to interactively instruct emission of the signal.
29. The system of claims 27 or 28, wherein the programmed instructions readable by the
processor include instructions for providing an interface controlled by a remote source
through a network connected to the mobile device.
1. Transaktions- oder Identifikationskarte mit einer Breite, einer Länge und mindestens
einer ebenen Oberfläche, die sich über die Breite und Länge erstreckt, wobei die Karte
Folgendes umfasst:
ein dynamisches Merkmal (306), das einen Aktuator mit einer inaktivierten Position
und einer aktivierten Position umfasst, wobei die inaktivierte Position mindestens
einen reversiblen Unterschied zu der aktivierten Position relativ zu der ebenen Oberfläche
der Karte aufweist; und
einen Schaltkreis (300, 500), der den Aktuator umfasst und zum Verbinden mit einer
Leistungsquelle (302, 402) konfiguriert ist, wobei der Schaltkreis (300, 500) so konfiguriert
ist, dass er dem Aktuator genügend Leistung zuführt, wenn er mit der Leistungsquelle
(302, 402) verbunden ist, um zu bewirken, dass sich der Aktuator von der inaktivierten
Position in die aktivierte Position bewegt,
dadurch gekennzeichnet, dass
der mindestens eine reversible Unterschied einen oder mehrere von einem wahrnehmbaren
taktilen und/oder visuellen Unterschied umfasst.
2. Transaktions- oder Identifikationskarte nach Anspruch 1, wobei das dynamische Merkmal
(306) eine exponierte ebene Oberfläche aufweist, die in der inaktivierten Position
im Wesentlichen bündig mit der mindestens einen ebenen Oberfläche der Karte und in
der aktivierten Position relativ zu der mindestens einen ebenen Oberfläche der Karte
versetzt angeordnet ist.
3. Transaktions- oder Identifikationskarte nach Anspruch 2, wobei das dynamische Merkmal
(306) den in einem Ausschnitt in der Oberfläche der Karte angeordneten Aktuator mit
einer Abdeckung über dem Aktuator umfasst, wobei die Abdeckung in der inaktivierten
Position bündig mit der mindestens einen ebenen Oberfläche der Karte liegt.
4. Transaktions- oder Identifikationskarte nach Anspruch 3, wobei die Abdeckung gedruckte
Zeichen umfasst.
5. Transaktions- oder Identifikationskarte nach Anspruch 4, wobei die gedruckten Zeichen
ein Logo umfassen, das einem Aussteller oder Sponsor der Karte entspricht.
6. Transaktions- oder Identifikationskarte nach einem der Ansprüche 1 bis 5, wobei die
mindestens eine ebene Oberfläche Metall umfasst.
7. Transaktions- oder Identifikationskarte nach einem der Ansprüche 1 bis 6, wobei das
dynamische Merkmal (306) eine Formgedächtnislegierung umfasst, die die inaktivierte
Position in einem ersten Materialzustand der Legierung und die aktivierte Position
in einem zweiten Materialzustand der Legierung aufweist, wobei sich der erste Zustand
vom zweiten Zustand unterscheidet.
8. Transaktions- oder Identifikationskarte nach einem der Ansprüche 1 bis 7, wobei das
dynamische Merkmal (306) eine Formgedächtnislegierung umfasst, die die inaktivierte
Position in einem entspannten Materialzustand der Legierung und die aktivierte Position
in einem verformten Materialzustand der Legierung aufweist, wobei sich der entspannte
Zustand vom verformten Zustand unterscheidet und die Leistung ausreicht, um zu bewirken,
dass die Formgedächtnislegierung vom entspannten Zustand in den verformten Zustand
übergeht.
9. Transaktions- oder Identifikationskarte nach Anspruch 8, wobei die Leistungsquelle
(302, 402) eine in die Karte eingebettete Batterie umfasst.
10. Transaktions- oder Identifikationskarte nach Anspruch 8 oder 9, wobei die Leistungsquelle
(302, 402) eine Klemme umfasst, die zum Aufnehmen eines Satzes von Metallkontakten
konfiguriert ist, und die Karte Metallkontakte auf mindestens einer Oberfläche der
Karte umfasst, die zum Zusammenstecken mit der Klemme positioniert sind.
11. Transaktions- oder Identifikationskarte nach einem der Ansprüche 8 bis 10, wobei die
Leistungsquelle (302, 402) Sendeleistung umfasst und die Karte eine zum Empfangen
der Sendeleistung konfigurierte Antenne umfasst.
12. Transaktions- oder Identifikationskarte nach Anspruch 11, wobei der Schaltkreis (300,
500) einen induktiven HF-Schaltkreis (300, 500) umfasst.
13. Transaktionskarte nach einem der Ansprüche 8 bis 12, die ferner einen HF-Empfänger
oder -Transceiver (508) umfasst, der zum Empfangen eines Signals konfiguriert ist,
das betrieben werden kann, um die Betätigung des Aktuators zu bewirken.
14. Transaktions- oder Identifikationskarte nach einem der Ansprüche 7 bis 13, wobei die
Formgedächtnislegierung einen Aktuator außerhalb der Ebene umfasst.
15. Transaktions- oder Identifikationskarte nach einem der Ansprüche 7 bis 14, wobei der
Aktuator aus Formgedächtnislegierung einen Membranaktuator umfasst.
16. Transaktions- oder Identifikationskarte nach einem der Ansprüche 7 bis 15, wobei die
Formgedächtnislegierung Nickel und Titan umfasst.
17. Transaktions- oder Identifikationskarte nach Anspruch 16, wobei die Legierung ferner
Kupfer umfasst.
18. Transaktions- oder Identifikationskarte nach einem der Ansprüche 14 bis 17, wobei
die Formgedächtnislegierung einen Aktuator umfasst, der eine aufgesputterte Metalllegierung
auf einem nichtmetallischen Film umfasst.
19. Transaktions- oder Identifikationskarte nach Anspruch 18, wobei die aufgesputterte
Metalllegierung Nitinol umfasst und der nichtmetallische Film eine Verbindung umfasst,
die ausgewählt ist aus der Gruppe bestehend aus: Polyimid, Polyamid, PDMS und PMMA.
20. Transaktions- oder Identifikationskarte nach einem der Ansprüche 14 bis 19, wobei
die Formgedächtnislegierung einen Zweiweg-Aktuator umfasst.
21. Transaktions- oder Identifikationskarte nach einem der Ansprüche 14 bis 19, wobei
die Formgedächtnislegierung einen Einweg-Aktuator umfasst.
22. Transaktions- oder Identifikationskarte nach einem der Ansprüche 1 bis 21, wobei die
Aktivierung oder Deaktivierung des Aktuators eine Schließung von oder Unterbrechung
in einem elektrischen Schaltkreis (300, 500) bewirkt.
23. Verfahren zur Herstellung einer Transaktions- oder Identifikationskarte nach einem
der Ansprüche 1 bis 22, das die folgenden Schritte beinhaltet:
Bereitstellen des Kartenkörpers;
Schneiden einer Tasche in die mindestens eine ebene Oberfläche;
Bereitstellen des Schaltkreises, der den Aktuator mit dem mindestens einen reversiblen
Unterschied umfasst, so dass der Aktuator in die Tasche eingeführt wird, wobei der
mindestens eine reversible Unterschied einen oder mehrere von dem wahrnehmbaren taktilen
und/oder visuellen Unterschied umfasst; und
Anordnen einer Abdeckung über dem Aktuator.
24. Verfahren zur Herstellung einer Transaktions- oder Identifikationskarte nach einem
der Ansprüche 1 bis 22:
Bereitstellen des Kartenkörpers als laminierten Kartenkörper mit dem Schaltkreis (300,
500), der den Aktuator umfasst, wobei der Aktuator den mindestens einen reversiblen
Unterschied aufweist, der einen oder mehrere von dem wahrnehmbaren taktilen und/oder
visuellen Unterschied umfasst, und in den laminierten Kartenkörper an einer Position
eingebettet ist, die nicht gegenüber der ebenen Oberfläche des Kartenkörpers exponiert
ist;
Schneiden einer Tasche in die mindestens eine ebene Oberfläche, um den Aktuator zu
exponieren; und
Anordnen einer Abdeckung über dem Aktuator.
25. Verfahren zum Durchführen einer Aktivität mit der Transaktions- oder Identifikationskarte
nach einem der Ansprüche 1 bis 22, wobei das Verfahren die folgenden Schritte beinhaltet:
Bereitstellen der Transaktionskarte oder Identifikationskarte;
Koppeln der Karte mit der Leistungsquelle (302, 402); und
Versorgen des Aktuators mit genügend Leistung, um die Betätigung des Aktuators von
der inaktivierten Position in die aktivierte Position zu bewirken.
26. System zur Steuerung einer Transaktions- oder Identifikationskarte, wobei das System
Folgendes umfasst:
die Transaktions- oder Identifikationskarte nach einem der Ansprüche 1 bis 22;
einen HF-Empfänger oder -Transceiver (508), der zum Empfangen eines Signals konfiguriert
ist, das bedient werden kann, um die Betätigung des Aktuators zu bewirken;
ein elektronisches Gerät, das zum Kommunizieren mit dem HF-Empfänger oder -Transceiver
(508) durch Aussenden des Signals konfiguriert ist.
27. System nach Anspruch 26, wobei das elektronische Gerät einen Computerprozessor umfasst,
der in ein mobiles Gerät eingebettet ist und auf programmierte Befehle anspricht,
die von dem Prozessor gelesen werden können.
28. System nach Anspruch 27, wobei die programmierten Befehle, die vom Prozessor gelesen
werden können, Befehle zum Bereitstellen einer Benutzerschnittstelle enthalten, die
so konfiguriert ist, dass ein Benutzer das Senden des Signals interaktiv anweisen
kann.
29. System nach Anspruch 27 oder 28, wobei die programmierten Befehle, die vom Prozessor
gelesen werden können, Befehle zum Bereitstellen einer Schnittstelle enthalten, die
von einer entfernten Quelle über ein mit dem mobilen Gerät verbundenes Netzwerk gesteuert
wird.
1. Carte de transaction ou d'identification présentant une largeur, une longueur et au
moins une surface plane s'étendant sur la largeur et la longueur, la carte comprenant
:
une caractéristique dynamique (306) comprenant un actionneur présentant une position
inactivée et une position activée, la position inactivée présentant au moins une différence
réversible par rapport à la position activée relativement à la surface plane de la
carte ; et
un circuit (300, 500) comprenant l'actionneur et configuré pour sa connexion à une
source de puissance (302, 402), le circuit (300, 500) étant configuré pour fournir
une puissance suffisante à l'actionneur lorsqu'il est connecté à la source de puissance
(302, 402) afin d'amener l'actionneur à se déplacer de la position inactivée à la
position activée,
caractérisée en ce que
l'au moins une différence réversible comprend une ou plusieurs d'une différence tactile
et/ou visuelle perceptible.
2. Carte de transaction ou d'identification selon la revendication 1, dans laquelle la
caractéristique dynamique (306) présente une surface plane exposée qui est disposée
sensiblement à niveau avec l'au moins une surface plane de la carte dans la position
inactivée et décalée relativement à l'au moins une surface plane de la carte dans
la position activée.
3. Carte de transaction ou d'identification selon la revendication 2, dans laquelle la
caractéristique dynamique (306) comprend l'actionneur disposé dans une découpe dans
la surface de la carte, avec un revêtement par-dessus de l'actionneur, le revêtement
reposant à niveau avec l'au moins une surface plane de la carte dans la position inactivée.
4. Carte de transaction ou d'identification selon la revendication 3, dans laquelle le
revêtement comprend des repères imprimés.
5. Carte de transaction ou d'identification selon la revendication 4, dans laquelle les
repères imprimés comprennent un logo correspondant à un organisme émetteur ou un sponsor
de la carte.
6. Carte de transaction ou d'identification selon l'une quelconque des revendications
1 à 5, dans laquelle l'au moins une surface plane comprend du métal.
7. Carte de transaction ou d'identification selon l'une quelconque des revendications
1 à 6, dans laquelle la caractéristique dynamique (306) comprend un alliage à mémoire
de forme ayant la position inactivée dans un premier état de matériau de l'alliage
et la position activée dans un second état de matériau de l'alliage, le premier état
étant différent du second état.
8. Carte de transaction ou d'identification selon l'une quelconque des revendications
1 à 7, dans laquelle la caractéristique dynamique (306) comprend un alliage à mémoire
de forme ayant la position inactivée dans un état de matériau détendu de l'alliage
et la position activée dans un état de matériau déformé de l'alliage, l'état détendu
étant différent de l'état déformé et la puissance étant suffisante pour amener l'alliage
à mémoire de forme à passer de l'état détendu à l'état déformé.
9. Carte de transaction ou d'identification selon la revendication 8, dans laquelle la
source de puissance (302, 402) comprend une batterie intégrée dans la carte.
10. Carte de transaction ou d'identification selon les revendications 8 ou 9, dans laquelle
la source de puissance (302, 402) comprend une borne configurée pour recevoir un ensemble
de contacts métalliques, et la carte comprend sur au moins une surface de la carte
des contacts métalliques positionnés pour s'accoupler avec la borne.
11. Carte de transaction ou d'identification selon l'une quelconque des revendications
8 à 10, dans laquelle la source de puissance (302, 402) comprend une puissance émise
et la carte comprend une antenne configurée pour recevoir la puissance émise.
12. Carte de transaction ou d'identification selon la revendication 11, dans laquelle
le circuit (300, 500) comprend un circuit RF inductif (300, 500).
13. Carte de transaction selon l'une quelconque des revendications 8 à 12, comprenant
en outre un récepteur ou un émetteur-récepteur RF (508) configuré pour recevoir un
signal exploitable pour déclencher l'actionnement de l'actionneur.
14. Carte de transaction ou d'identification selon l'une quelconque des revendications
7 à 13, dans laquelle l'alliage à mémoire de forme comprend un actionneur hors plan.
15. Carte de transaction ou d'identification selon l'une quelconque des revendications
7 à 14, dans laquelle l'actionneur en alliage à mémoire de forme comprend un actionneur
à membrane.
16. Carte de transaction ou d'identification selon l'une quelconque des revendications
7 à 15, dans laquelle l'alliage à mémoire de forme comprend du nickel et du titane.
17. Carte de transaction ou d'identification selon la revendication 16, dans laquelle
l'alliage comprend en outre du cuivre.
18. Carte de transaction ou d'identification selon l'une quelconque des revendications
14 à 17, dans laquelle l'alliage à mémoire de forme comprend un actionneur comprenant
un alliage métallique déposé par pulvérisation sur un film non métallique.
19. Carte de transaction ou d'identification selon la revendication 18, dans laquelle
l'alliage métallique déposé par pulvérisation comprend du nitinol et le film non métallique
comprend un composé sélectionné dans le groupe consistant en : polyimide, polyamide,
PDMS et PMMA.
20. Carte de transaction ou d'identification selon l'une quelconque des revendications
14 à 19, dans laquelle l'alliage à mémoire de forme comprend un actionneur bidirectionnel.
21. Carte de transaction ou d'identification selon l'une quelconque des revendications
14 à 19, dans laquelle l'alliage à mémoire de forme comprend un actionneur unidirectionnel.
22. Carte de transaction ou d'identification selon l'une quelconque des revendications
1 à 21, dans laquelle l'activation ou la désactivation de l'actionneur provoque la
fermeture ou une discontinuité d'un circuit électrique (300, 500).
23. Procédé de fabrication d'une carte de transaction ou d'identification selon l'une
quelconque des revendications 1 à 22, comprenant les étapes de :
fourniture du corps de carte ;
découpage d'une poche dans l'au moins une surface plane ;
fourniture du circuit comprenant l'actionneur présentant l'au moins une différence
réversible de telle sorte que l'actionneur soit inséré dans la poche, l'au moins une
différence réversible comprenant une ou plusieurs de la différence tactile et/ou visuelle
perceptible ; et
disposition d'un revêtement par-dessus l'actionneur.
24. Procédé de fabrication d'une carte de transaction ou d'identification selon l'une
quelconque des revendications 1 à 22 :
fourniture du corps de carte en tant que corps de carte laminé avec le circuit (300,
500) comprenant l'actionneur, l'actionneur présentant l'au moins une différence réversible
comprenant une ou plusieurs de la différence tactile et/ou visuelle perceptible et
étant intégré dans le corps de carte laminé dans une position non exposée relativement
à la surface plane du corps de carte;
découpe d'une poche dans l'au moins une surface plane pour exposer l'actionneur ;
et
disposition d'un revêtement par-dessus l'actionneur.
25. Procédé de réalisation d'une activité à l'aide de la carte de transaction ou d'identification
selon l'une quelconque des revendications 1 à 22, le procédé comprenant les étapes
de :
fourniture de la carte de transaction ou la carte d'identification ;
couplage de la carte à la source de puissance (302, 402) ; et
fourniture d'une puissance suffisante à l'actionneur pour déclencher l'actionnement
de l'actionneur de la position inactivée à la position activée.
26. Système de commande d'une carte de transaction ou d'identification, le système comprenant
:
la carte de transaction ou d'identification selon l'une quelconque des revendications
1 à 22 ;
un récepteur ou un émetteur-récepteur RF (508) configuré pour recevoir un signal exploitable
pour déclencher l'actionnement de l'actionneur ;
un dispositif électronique configuré pour communiquer avec le récepteur ou l'émetteur-récepteur
RF (508) en émettant le signal.
27. Système selon la revendication 26, dans lequel le dispositif électronique comprend
un processeur informatique intégré dans un dispositif mobile et répondant à des instructions
programmées lisibles par le processeur.
28. Système selon la revendication 27, dans lequel les instructions programmées lisibles
par le processeur incluent des instructions pour fournir une interface utilisateur
configurée pour permettre à un utilisateur d'ordonner de manière interactive l'émission
du signal.
29. Système selon les revendications 27 ou 28, dans lequel les instructions programmées
lisibles par le processeur incluent des instructions pour fournir une interface commandée
par une source distante par le biais d'un réseau connecté au dispositif mobile.


REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description