A headset system is proposed including a headset unit to be worn by a user and having two or more microphones, and a base unit in wireless communication with the headset. Signals received from the microphones are processed using a first adaptive filter to enhance a target signal, and then divided and...http://www.google.es/patents/US20040193411?utm_source=gb-gplus-sharePatente US20040193411 - System and apparatus for speech communication and speech recognition
System and apparatus for speech communication and speech recognition
Número de solicitud: 10/487,229 Número de publicación: US 2004/0193411 A1 Fecha de presentación: 26 Feb 2004 Patente emitida: US7346175 ( Fecha de emisión 18 Mar 2008)