Motorola Corporation

Mui-Chwee Tong

Nicholas Weiner

In a Viterbi decoder, a branch metrics unit (,) receives samples and provides a branch metric to a first and second adder (,and,) that adds the branch metric to a first and second path metric from a path metrics memory (,). Concurrently, a comparator (,) compares the first and second path metrics and provides a select signal to a multiplexor (,) to select the output of the first or second adder (,or,). The selection signal is also provided to a path memory unit (,) which provides a detected symbol sequence. The output of the first or second adder (,or,) is selected by the multiplexor (,) and provided to the path metric memory (,) as an updated path metric.

Growing community of inventors

Singapore, Singapore

Mui-Chwee Tong