Presence and recognition system
First Claim
1. A presence and recognition system for a motor vehicle including an engine, said presence and recognition system comprising:
- an electronic lock including first communication means being so configured as to periodically transmit a question signal and to generate an output signal when predetermined conditions have been met; and
an electronic key including second communication means being so configured as to (a) receive the question signal, (b) modify the question signal according to a predetermined pattern to yield a response signal, (c) transmit the response signal to said first communication means;
wherein said output signal is required for continuous operation of the engine of the motor vehicle.
5 Assignments
0 Petitions
Accused Products
Abstract
A transponder system for motor vehicle, used both as a RKE system and as a kill switch type safety system, is described herein. The transponder system includes an electronic lock assembly provided with a housing, an interrogator circuit and a coil antenna. The transponder system also includes an electronic key provided with a housing made of a slightly resilient material, a transponder circuit, and a coil antenna. The key assembly may be releasably mounted to the lock assembly since the housing of the key assembly is made of a slightly resilient material. Continuous interactions between the electronic lock and the electronic key are required for the continuous operation of the engine of the vehicle.
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Citations
15 Claims
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1. A presence and recognition system for a motor vehicle including an engine, said presence and recognition system comprising:
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an electronic lock including first communication means being so configured as to periodically transmit a question signal and to generate an output signal when predetermined conditions have been met; and
an electronic key including second communication means being so configured as to (a) receive the question signal, (b) modify the question signal according to a predetermined pattern to yield a response signal, (c) transmit the response signal to said first communication means;
wherein said output signal is required for continuous operation of the engine of the motor vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A presence and recognition system for a motor vehicle including an engine, said presence and recognition system comprising:
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an electronic lock including an interrogator circuit so configured as to periodically transmit a question signal and to generate an output signal when predetermined conditions are met; and
an electronic key including a transponder circuit so configured as to receive the question signal from the interrogator circuit, modify the question signal according to a predetermined pattern to yield a response signal, transmit the response signal to said interrogator circuit;
wherein said output signal is required for continuous operation of the engine of the motor vehicle. - View Dependent Claims (11, 12)
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13. A presence and recognition system for a motor vehicle including an engine, said presence and recognition system comprising:
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an electronic lock including an interrogator circuit so configured as to periodically transmit a question signal; and
an electronic key including a transponder circuit so configured as to receive the question signal from the interrogator circuit, modify the question signal according to a predetermined pattern to yield a response signal, transmit the response signal to said interrogator circuit;
wherein a) said interrogator circuit compares said response signal with an expected response signal and generates an output signal to the engine when said response signal corresponds to said expected response signal, and b) failure to periodically receive the output signal causes the engine to stop. - View Dependent Claims (14)
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15. A presence and recognition method for a motor vehicle including an engine, said presence and recognition method comprising the acts of:
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providing an electronic lock including first communication means;
providing an electronic key including second communication means;
transmitting, via the first communication means, a question signal;
receiving, via the second communication means, the question signal;
in the electronic key, modifying the question signal according to a predetermined pattern to yield a response signal;
transmitting, via the second communication means, the response signal;
in the electronic lock, receiving the response signal and comparing it with an expected response signal; and
generating an output signal to the engine when predetermined conditions have been met;
wherein said output signal is required for continuous operation of the engine of the motor vehicle.
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Specification