Patent ID: 7149952
Filing Date: 2006-12-12
Classification: H03M,H04L,H04N

Abstract:
1. In a system for processing data comprising groups of trellis encoded data packets, apparatus for providing trellis decoded data, comprising: means for generating decision data associated with trellis state transitions in response to said encoded data packets; a traceback network responsive to said decision data for identifying a sequence of antecedent trellis states, as determined by a state transition trellis, wherein said antecedent trellis states are identified for a sequence of data packets; means for selecting a desired trellis state path from the antecedent trellis states; means for continuously updating the desired trellis state path at each new trellis branch; and means responsive to said identified sequence of antecedent trellis states, for providing said trellis decoded data.