Title :
A 162 Mbit/s variable length decoding circuit using an adaptive tree search technique
Author :
Ooi, Yasushi ; Taniguchi, Atsushi ; Demura, Shigeki
Author_Institution :
VLSI Syst. Dev. Lab., NEC Corp., Japan
Abstract :
A high-speed Huffman decoder for real-time video applications has been developed. The most dominant part of MPEG video bit-stream, DCT coefficients, can be decoded in 4 cycles or less using the proposed circuit, while the table size is smaller than the case of the conventional binary search. Bit-streams can be decoded up to 6 bit/cycle, which enables 162 Mbit/s decoding at 27 MHz
Keywords :
Huffman codes; adaptive decoding; data compression; discrete cosine transforms; multimedia communication; tree searching; variable length codes; video signal processing; 162 Mbit/s; 27 MHz; DCT coefficients; MPEG video bit-stream; adaptive tree search technique; binary search; high-speed Huffman decoder; real-time video applications; table size; variable length decoding circuit; Binary trees; Circuits; Decoding; Discrete cosine transforms; Image coding; National electric code; Out of order; Streaming media; Transform coding; Video compression;
Conference_Titel :
Custom Integrated Circuits Conference, 1994., Proceedings of the IEEE 1994
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-1886-2
DOI :
10.1109/CICC.1994.379756
