Patent ID: 6215424
Filing Date: 2001-04-10
Classification: H03M

Abstract:
A variable length codeword decoder, responsive to a clock signal having multiple cycles, comprising:source of sequential variable length codewords, each representing a run-length encoded codeword;a barrel shifter circuit, responsive to said clock signal, coupled to the codeword source, for providing at least a first variable length codeword, to be decoded next, and a second variable length codeword, to be decoded next after the first variable length codeword, at an output terminal;a codeword decoding circuit, coupled to the output terminal of the barrel shifter, for decoding in a single cycle of said clock signal, at least one of:(a) first and second variable length codewords, each representing respective zero run run-length codewords; and(b) a first sequential variable length codeword representing a zero run run-length codeword and a second variable length codeword representing a one run run-length codeword.