A remote-control system for locks having an infrared hand-held transmitter of the remote-control system, which is used for the remote-control of the central locking system of a motor vehicle, and a receptacle for the insertion of the transmitter arranged in the motor vehicle. At least one optical cable,...http://www.google.de/patents/US5159334?utm_source=gb-gplus-sharePatent US5159334 - Remote-control system for locks
