The invention relates to methods for encoding/decoding of a digital signal which is transmitted over a packet switched network. Prediction samples are generated at the transmitting and receiving end. The digital signal is lossless encoded at the transmitting end, and lossless decoded at the receiving...http://www.google.es/patents/US6970479?utm_source=gb-gplus-sharePatente US6970479 - Encoding and decoding of a digital signal