Key apparatus for vehicle, method of controlling starting of veh

Details Key apparatus for vehicle, method of controlling starting of veh Key apparatus for vehicle, method of controlling starting of veh

1998-06-18

2000-07-25

Gaffin, Jeffrey

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 103, B60R 2500

Patent

active

06093980&

ABSTRACT:
A key for a vehicle is provided with a transmitting circuit and an electric power receiving/signal transmitting circuit. The transmitting circuit transmits a wireless SW signal by radio waves in a case in which an instruction switch is on. The electric power receiving/signal transmitting circuit receives electric power from an electric power transmitting circuit provided in a key cylinder for a vehicle at a vehicle, and transmits a transponder code signal in a case in which the electric power receiving/signal transmitting circuit receives the electric power. When the key for a vehicle is inserted in the key cylinder for a vehicle, a light emitting device provided in the key cylinder for a vehicle emits light. In a case in which a receiver provided at the transmitting circuit receives the light, transmission of the wireless SW signal is prohibited.

REFERENCES:
patent: 3987408 (1976-10-01), Sassover et al.
patent: 4383242 (1983-05-01), Sassover et al.
patent: 5808372 (1998-09-01), Schwegler et al.
patent: 5850173 (1998-12-01), DiCroce et al.

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