Patent ID: 9600947
Date: 2017-03-21
CPC Classifications: B60R,G07C

Claim:
1. A lock system for access authorization and/or driving authorization in a motor vehicle in the manner of a Keyless Entry/Go functionality, having a first device which has at least two states and is embodied as a controller for unlocking and/or locking at least one of car doors, an ignition lock, and a steering wheel lock, and/or for enabling and/or disabling at least one of an immobilizer and an engine control unit, and having an associated second device which is embodied in the manner of at least one of an electronic key, an ID signal transmitter and a chip card, wherein the two devices have, for their intended operation, transmitters and/or receivers for electromagnetic signals, wherein at least one of the signals transmitted between the second device and the first device is an encoded operating signal for authenticating the second device, with the result that after positive evaluation of the transmitted operating signal in the case of an authorized second device it is possible to bring about a change in the state of the first device, and wherein at least one antenna interacts with an oscillatory circuit and transmits at least one of the signals, wherein the antenna is assigned to the first device and wherein the antenna can be switched by switching the oscillatory circuit in the first device between a transmitting mode for the keyless functionality, whereby the oscillatory circuit is operated as serial oscillatory circuit, and a receiving and/or transmitting mode for an emergency functionality when the keyless functionality fails, whereby the oscillatory circuit is operated as parallel oscillatory circuit.