A wireless telecommunications system comprises a mobile station (MS) and a network. The mobile station has a multi-rate speech encoder which produces an encoded speech signal which is transmitted to the network. The network has a multi-rate speech decoder which decodes the encoded speech signal to produce...http://www.google.es/patents/US20040098251?utm_source=gb-gplus-sharePatente US20040098251 - Speech coding
Número de solicitud: 10/311,657 Número de publicación: US 2004/0098251 A1 Fecha de presentación: 16 Dic 2003 Patente emitida: US7315814 ( Fecha de emisión 1 Ene 2008)
