ANTI-THEFT DEVICE, IN PARTICULAR FOR AN AUTOMOTIVE VEHICLE

摘要

1. Thief proof device including a control box (1) connected to a peripheral (2) by a conductor (9) characterized in that the control box (1) includes a pulse source or clock (3) and means (3-8) for sending pulses over the connecting conductor (9) when it is desired to put the thief proof device out of service, and in that the peripheral (2) is connected to the conductor (9) by a capacitive connection (10) and comprises means (12-15) responsive to the reception of pulses for allowing or preventing the operation of the peripheral (2) depending on the presence respectively the absence of pulses in the conductor (9).