Patent ID: 6519733
Filing Date: 2003-02-11
Classification: G06F,H03M

Abstract:
A computer memory system implementing a processing device for enabling indirect storage and retrieval of compressed data in a physical memory associated with a computing system and issuing real memory addresses for accessing said data from said physical memory, comprising:first redundant protection code generator device for receiving uncompressed data from said processor device and generating a redundant protection code associated with said uncompressed data during a compression operation; a compressor mechanism for receiving said uncompressed data from said first redundant protection code generator and generating a compressor encoded output data for storage in said physical memory with its associated redundant protection code; a decompressor mechanism for receiving said compressor encoded output data from said memory and decompressing said data information into an uncompressed form during a decompression operation; a second redundant protection code generator device for receiving said data in uncompressed data form from said decompressor mechanism and recomputing said redundant protection code from said uncompressed data during said decompression operation; and a comparator device for comparing a redundant protection code value associated with said uncompressed data during said compression operation and said recomputed redundant protection code value obtained during said decompression operation, said system flagging a data corruption occurrence when said redundant protection code values differ.