A method of reconstructing, at the receiving end, digital data defining an encoded voice signal segment lost in transmission between the transmitter and the receiver in a transmission system wherein a low-frequency signal such as a residual baseband signal is derived at the transmitting end from the...http://www.google.de/patents/US4907277?utm_source=gb-gplus-sharePatent US4907277 - Method of reconstructing lost data in a digital voice transmission system and transmission system using said method
