Apparatus and algorithm for compressing and decompressing data

Details Apparatus and algorithm for compressing and decompressing data Apparatus and algorithm for compressing and decompressing data

H - Electricity

03

M

354/67

H03M 7/42 (2006.01) H03M 7/30 (2006.01)

Patent

CA 1252896

ABSTRACT OF THE DISCLOSURE A compression and a decompression algorithm resides in a memory of a data processing system. The data processing system communicates to another data processing system via an input/output means and a telecommunications network. When a message, to be communicated to the other data processing system, is ready for transmission, the data processing system compresses the message data. A processor or the data processing system compresses the data using the compression algorithm stored in the memory of the data processing system. The compression algorithm: identifies a mask character in the data representing the most frequently occurring character in the data, develops a mask byte in association with the mask character, the mask byte identifying the locations of the mask character in the data and identifying the locations of each portion of a residual message associated with the data, and develops the residual message, the residual message representing the message data with the mask character extracted from the message data. EN984046

506443

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