Key apparatus for vehicle, method of controlling starting of vehicle engine, and key system for vehicle
First Claim
1. A key apparatus for a vehicle comprising:
- a tranmitting circuit which is provided with an instructing switch for instructing transmission of a first signal, and which transmits the first signal by radio waves in accordance with the instruction by the instructing switch;
an electric power receiving/signal transmitting circuit for receiving electric power from an electric power transmitting circuit provided in the vehicle and for transmitting a second signal in a case in which the electric power receiving/signal transmitting circuit receives the electric power; and
a prohibiting circuit for prohibiting transmission of the first signal in a case in which the second signal is transmitting, including;
a receiver for receiving a third signal transmitted from the vehicle and expressing prohibition of transmission of the first signal, anda signal transmission prohibiting circuit for prohibiting transmission of the first signal while the third signal is being received by the receiver.
1 Assignment
0 Petitions
Accused Products
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.
16 Citations
18 Claims
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1. A key apparatus for a vehicle comprising:
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a tranmitting circuit which is provided with an instructing switch for instructing transmission of a first signal, and which transmits the first signal by radio waves in accordance with the instruction by the instructing switch; an electric power receiving/signal transmitting circuit for receiving electric power from an electric power transmitting circuit provided in the vehicle and for transmitting a second signal in a case in which the electric power receiving/signal transmitting circuit receives the electric power; and a prohibiting circuit for prohibiting transmission of the first signal in a case in which the second signal is transmitting, including; a receiver for receiving a third signal transmitted from the vehicle and expressing prohibition of transmission of the first signal, and a signal transmission prohibiting circuit for prohibiting transmission of the first signal while the third signal is being received by the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A key apparatus for a vehicle comprising:
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transmitting means provided with an instructing means for instructing transmission of a first signal, and transmitting the first signal by radio waves in accordance with the instruction by the instructing means; electric power receiving/signal transmitting means for receiving electric power from an electric power transmitting means provided in the vehicle, and transmitting a second signal in a case in which the electric power receiving/signal transmitting means receives the electric power; and prohibiting means for prohibiting transmission of the first signal in a case in which the second signal is transmitted, including; receiving means for receiving a third signal transmitted from the vehicle and expressing prohibition of transmission of the first signal, and signal transmission prohibiting means for prohibiting transmission of the first signal while the third signal is being received by the receiving means. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification