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On the design and implementation of a lossless data compression and decompression chip

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5 Author(s)
Royals, D.M. ; Center for Syst. Eng., Research Triangle Inst., Research Triangle Park, NC, USA ; Markas, T. ; Kanopoulos, N. ; Reif, J.H.
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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

Published in:

Solid-State Circuits, IEEE Journal of  (Volume:28 ,  Issue: 9 )

Date of Publication:

Sep 1993

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