Title :
On the design and implementation of a lossless data compression and decompression chip
Author :
Royals, D. Mark ; Markas, Tassos ; Kanopoulos, Nick ; Reif, John H. ; Storer, James A.
Author_Institution :
Center for Syst. Eng., Research Triangle Inst., Research Triangle Park, NC, USA
fDate :
9/1/1993 12:00:00 AM
Abstract :
A lossless data compression and decompression (LDCD) algorithm based on the notion of textural substitution has been implemented in silicon using a linear systolic array architecture. This algorithm employs a model in which the encoder and decoder each have a finite amount of memory which is referred to as the dictionary. Compression is achieved by finding matches between the dictionary and the input data stream whereby a substitution is made in the data stream by an index referencing the corresponding dictionary entry. The LDCD system is built using 30 application-specific integrated circuits (ASICs), each containing 126 identical processing elements (PEs) which perform both the encoding and decoding function at clock rates up to 20 MHz
Keywords :
CMOS integrated circuits; VLSI; application specific integrated circuits; data compression; decoding; digital signal processing chips; encoding; parallel algorithms; systolic arrays; 20 MHz; ASICs; CMOS VLSI chip; DSP chip; application-specific integrated circuits; compression/decompression algorithm; data compression; decoder; encoder; linear systolic array architecture; textural substitution; Algorithm design and analysis; Application specific integrated circuits; Compression algorithms; Computer science; Data compression; Decoding; Dictionaries; Silicon; Systolic arrays; Vocabulary;
Journal_Title :
Solid-State Circuits, IEEE Journal of
