A key fob includes a biometric sensor including a fingerprint area sensor having a surface for receiving a finger, and a controller includes at least one processor configured to authenticate a user of the key fob based on biometric information obtained with the biometric sensor and stored biometric
A key fob includes a biometric sensor including a fingerprint area sensor having a surface for receiving a finger, and a controller includes at least one processor configured to authenticate a user of the key fob based on biometric information obtained with the biometric sensor and stored biometric information for an individual. The key fob includes a RF transmitter for communicating stored transaction information to a reader upon authentication of the user and a housing. The housing includes a base for supporting the biometric sensor and a cover sleeve slidably engaged with the base to allow for extension from and retraction into the sleeve by the base, thereby permitting selective exposure of the fingerprint area sensor under user actuation.
대표청구항▼
1. A key fob comprising: a biometric sensor comprising a fingerprint area sensor having a surface for receiving a finger;a controller, the controller comprising at least one processor configured to authenticate a user of the key fob based on biometric information obtained with the biometric sensor a
1. A key fob comprising: a biometric sensor comprising a fingerprint area sensor having a surface for receiving a finger;a controller, the controller comprising at least one processor configured to authenticate a user of the key fob based on biometric information obtained with the biometric sensor and stored biometric information for an individual;a RF transmitter for communicating stored transaction information to a reader upon authentication of the user;a housing, the housing comprising a base for supporting the biometric sensor and a cover sleeve slidably engaged with the base to allow for extension from and retraction into the sleeve by the base, thereby permitting selective exposure of the fingerprint area sensor under user actuation; anda bowed spring element for retaining the base in retracted and extended positions as selected by the user, the bowed spring element having a first end fixed with respect to the cover sleeve and a second end attached to the base, the second end moving with the base as the base is extended from and retracted into the sleeve. 2. The key fob of claim 1, wherein the housing comprises means for engaging a finger of an individual to facilitate one-handed movement of the base to an extended position by the user. 3. The key fob of claim 2, wherein the finger engaging means comprises a ledge for engaging a tip of a finger of the user. 4. The key fob of claim 3, wherein the ledge is arched for mating with a fingertip and positioned to locate the finger over the surface of the fingerprint area sensor when the base is in a fully extended position exposing the surface of the fingerprint area sensor. 5. The key fob of claim 4, wherein the base has a window through which the surface of the fingerprint area sensor is exposed, the base further comprising a recessed seat area around the window for seating the finger over the surface of the fingerprint area sensor. 6. The key fob of claim 1, wherein the housing comprises means for engaging a thumb of an individual to facilitate one-handed movement of the base to an extended position to expose the surface of fingerprint area sensor and for aligning the thumb over the sensor when the base is in a fully extended position. 7. The key fob of claim 1, further comprising a data acquisition ASIC coupled between the fingerprint area sensor and the controller, wherein the at least one processor of the controller is operable to process image data provided by the data acquisition ASIC into a fingerprint template, and compare the fingerprint template against a reference template to authenticate the user. 8. The key fob of claim 1, further comprising a data acquisition ASIC coupled between the fingerprint area sensor and the controller, wherein the at least one processor comprises a control processor and a smart card processor, wherein the control processor is operable to process image data provided by the data acquisition ASIC into a fingerprint template and provide the fingerprint template to the smart card processor, wherein the smart card processor is operable to perform a match-on-chip operation to authenticate the user, wherein the smart card processor is operable to control the RF transmitter for communicating the stored transaction information to the reader upon authentication of the user. 9. The key fob of claim 1, wherein the second end of the bowed spring element is disposed more proximate to a bottom end of the key fob than the first end of the bowed spring element when the base in in a fully retracted position, and the first end of the bowed spring element is more proximate the bottom end of the key fob than the second end of the bowed spring element when the base is in a fully extended position. 10. The key fob of claim 9, wherein the bowed spring element is configured to: offer resistance against moving the base from the retracted position towards the extended position when the second end of the bowed spring element is more proximate to the bottom end of the key fob than the first end of the bowed spring element,offer resistance against moving the base from the extended position towards the retracted position when the first end of the bowed spring element is more proximate to the bottom end of the key fob than the second end of the bowed spring element,offer assistance moving the base towards the extended position when the first end of the bowed spring element is more proximate to the bottom end of the key fob than the second end of the bowed spring element, andoffer assistance moving the base towards the retracted position when the second end of the bowed spring element is more proximate to the bottom end of the key fob than the first end of the bowed spring element. 11. A key fob for use in smart card transactions, comprising: a finger print area sensor having a surface for receiving a finger;at least one processor configured to authenticate a user of the key fob based on biometric information obtained with the fingerprint area sensor and stored biometric information for an individual;an RF transceiver for communicating stored smart card information to an RF reader under control of the at least one processor upon authentication of the user and presence of the key fob in an RF field of the RF reader;a housing, the housing comprising a base for supporting the biometric sensor and a cover defining a cavity, the base being slidably engaged with respect to the cover so as to allow extension from and retraction into the cavity by the base; anda spring element coupled between the base and the cover, the spring element configured to help retain the base in a fully retracted position when the base is retracted within the cavity and to help retain the base in a fully extended position when the base is extended from the cavity,wherein the spring element includes a spring clip fixed within the cover sleeve and a pair of spaced protrusions disposed on the base for engaging opposite sides of the spring clip, the spring clip including a first portion shaped for engagement with the pair of spaced protrusions for retaining the base in the fully retracted position, a second portion shaped for engagement with the pair of spaced protrusions for retaining the base in the fully extended position, and a transition portion between the first and second portions. 12. The key fob of claim 11, wherein the transition portion includes first and second sub-portions, the first sub-portion being configured to offer resistance against moving the base from the fully retracted position towards the fully extended position and to offer assistance moving the base towards the fully retracted position from a first point intermediate the fully retracted and extended positions,the second sub-portion being configured to offer resistance against moving the base from the fully extended position towards the fully retracted position and to offer assistance moving the base towards the fully extended position from a second point intermediate the fully retracted and extended positions. 13. The key fob of claim 12, wherein the spring clip includes first and second arms having oppositely disposed elbows where the first and second sub-portions of the transition portion meet. 14. A key fob for use in smart card transactions, comprising: a finger print area sensor having a surface for receiving a finger;at least one processor configured to authenticate a user of the key fob based on biometric information obtained with the fingerprint area sensor and stored biometric information for an individual;a battery;an RF transceiver for communicating stored smart card information to an RF reader upon authentication of a user and presence of the key fob in an RF field of the RF reader; anda housing, the housing comprising: a base, the base housing the fingerprint area sensor, the at least one processor, the battery and the RF transceiver, wherein the surface of the finger print area sensor is exposed through a window in an outer surface of the base; anda cover for the base, the cover comprising a major sleeve portion defining a cavity, the base being slidably engaged with respect to the major sleeve portion so as to allow extension from and retraction into the cavity by the base, whereby the surface of the fingerprint area sensor is covered by the major sleeve portion when the base is in a retracted position and exposed when the base is in an extended position, and a minor sleeve portion disposed over an end of the base proximate to the surface of the fingerprint area sensor,wherein the minor sleeve portion and the outer surface of the base cooperate to form a ledge positioned to engage a tip of a thumb of the user when the key fob is seated in a closed hand of the user, such that the user moves the base from the retracted to the extended position by pushing the user's thumb against the ledge and extending the user's thumb,wherein a portion of the base is exposed to a user's thumb tip when the base is in a fully retracted position with the fingerprint area sensor covered by the major sleeve portion. 15. The key fob of claim 14, wherein the ledge is positioned such that when the base is in a fully extended position the user's thumb is positioned on the surface of the area sensor. 16. The key fob of claim 15, wherein the ledge is curved to generally match the shape of a thumb tip. 17. The key fob of claim 15, wherein the upper surface of the base has a recessed seating area around the window for seating the user's thumb. 18. The key fob of claim 17, wherein the portion of the base exposed to a user's thumb tip includes a portion of the recessed seating area. 19. The key fob of claim 14, further comprising a loop for connection to a key ring at a bottom end of the key fob proximate said major sleeve portion and distal said minor sleeve portion. 20. The key fob of claim 14, wherein the minor sleeve portion is shaped to expose the portion of the base that is exposed to a user's thumb tip when the base is in a fully retracted position.
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