Patent ID: 6069575
Filing Date: 2000-05-30
Classification: H03M,H04N

Abstract:
A variable length code decoder comprising:a first decode table implemented with logic circuits for decoding each of variable length codes encoded according to a first coding system at one clock;a second decode table implemented on a memory device for decoding variable length codes encoded according to other coding different than the first coding system making use of a tree searching technique;a first switching means for switching decoding procedure from the first decode table into the second decode table when a first specific code is decoded by way of the first decode table, said first specific code indicating an end of a sequence of the variable length codes according to the first coding system; anda second switching means for switching the decoding procedure from the second decode table into the first decode table when a second specific code is decoded by way of the second decode table, said second specific code indicating that a sequence of the variable length codes according to the first coding system is following.