System for controlled locking and unlocking of vehicle with key unit controllable by user which has 1st transmission unit and control unit at vehicle which has 2nd transmission unit

摘要

The key unit (2) has a key word memory (16) for the storage of the key words. Also a microphone (3) for the reception of the sound sequences and a speech identification unit (15) with a speech identification module (30) working together with the microphone and the key word memory (16). The transmission unit (4,7) are infra red transmission units.