Method for initializing a viterbi decoder in framed mode
OwnerPaul Spencer, Haim Kupershmidtinventors
Life of this patent
Estimating the term…
Abstract
A method for initializing a VITERBI mechanism is provided. The general environment in which such a method is implicated is a state matrix which includes a plurality of stages, each of the stages including a plurality of potential states, having a VITERBI mechanism for analyzing a received signal, wherein the received signal defines a trail of states. The trail of states includes a single state at each of the stages and the signal includes a predetermined initial state. The VITERBI mechanism detects the trail.
Claims2
In a state matrix including a plurality of stages, each of the stages including a plurality of potential states, a method for initializing a VITERBI mechanism, the VITERBI mechanism analyzing a received signal, the received signal defining a trail of states, the trail of states including a single state at each of the stages, the signal including a predetermined initial state, the VITERBI mechanism detecting the trail, the method comprising the steps of:
- analyzing said received signal using said VITERBI mechanism, thereby determining at least one potential trail of states;
- examining said at least one potential trail thereby selecting, from said at least one potential trails, a group of trails which include said predetermined initial state;
- calculating a likelihood value for each said trail of said group of trails;
- and
- selecting an elected trail with the best likelihood value from said group of trails,
Dependencies are inferred from the claim text.