An adaptive trellis decoder seamlessly switches between multiple input signal formats. The trellis decoder employs a code sequence detection system, described in the context of an exemplary Viterbi decoding system, that detects codes in an input interleaved packet data signal. The code sequence...http://www.google.co.uk/patents/US5841819?utm_source=gb-gplus-sharePatent US5841819 - Viterbi decoder for digital packet signals
