Patent ID: 8461974
Filing Date: 2013-06-11
Classification: B60R,G07C

Abstract:
1. An electric circuit for an access control and for an immobilizer of a vehicle, comprising: a first antenna driver for driving a first antenna for sending a signal on identification of an ID transmitter for the access control of the vehicle, a second antenna driver for driving a second antenna for transmitting a signal on identification of an ID transmitter for the immobilizer of the vehicle, a receiver device for receiving a signal received by an antenna for identifying an ID transmitter for the immobilizer, a third antenna driver for driving a third antenna on identification of the ID transmitter for the access system of the vehicle, wherein the first antenna driver, the second antenna driver, the receiver device, and the third antenna driver are integrated onto a single semiconductor chip, and wherein characteristics of the first antenna driver and the third antenna driver are independently controllable during simultaneous operation of the first and third antenna drivers.