A digital cordless telephone (10) includes a handset (12) and a base station (14). A voice activity detector (20) in the handset (12) determines whether speech or silence is being received by a microphone (13) in the handset (12). An active enable signal is transmitted to the base station...http://www.google.fr/patents/US5722086?utm_source=gb-gplus-shareBrevet US5722086 - Method and apparatus for reducing power consumption in a communications system
Method and apparatus for reducing power consumption in a communications ...
