Passive entry systems for vehicles and other applications
First Claim
1. A passive remote keyless entry (RKE) system for a vehicle or other locked space including an existing receiver programmed to recognize encoded command signals from an existing portable transmitter, the device comprising:
- a transponder object carried by a user; and
a unit mounted on the vehicle or other locked space operative to detect if the transponder object is in close physically proximity and, if it is, transmit one or more of the same encoded command signals recognizable by the existing receiver.
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Accused Products
Abstract
For use in conjunction with an existing wireless transmitter/receiver, a transmitter provided by the invention preferably uses some or all of the same codes as the existing remote transmitter to perform a desired function such as door or trunk unlocking, windows, light activation, and so forth. One embodiment of the invention includes a passive entry system so that only an authorized operator can use the device. In a preferred embodiment, a user carries a wallet-sized card or other device, such that upon activation of the keypad associated with the inventive transmitter, a signal is first sent to the user for verification. If the card or other device carried by the user properly transponds an appropriate authorization signal, the inventive transmitter broadcasts the codes appropriate to the function being requested. Alternatively, biometric information such a fingerprint or voiceprint may be used.
137 Citations
14 Claims
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1. A passive remote keyless entry (RKE) system for a vehicle or other locked space including an existing receiver programmed to recognize encoded command signals from an existing portable transmitter, the device comprising:
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a transponder object carried by a user; and
a unit mounted on the vehicle or other locked space operative to detect if the transponder object is in close physically proximity and, if it is, transmit one or more of the same encoded command signals recognizable by the existing receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14)
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12. A passive remote keyless entry (RKE) system for a vehicle or other locked space including an existing receiver programmed to recognize encoded command signals from an existing portable transmitter, the device comprising:
a unit mounted on the vehicle or other locked space operative to detect a biometric aspect of a user and, if the user is an authorized user, transmit one or more of the same encoded command signals recognizable by the existing receiver. - View Dependent Claims (13)
Specification