发明名称 |
METHOD AND CIRCUIT FOR COMPRESSION OF DIGITAL DATA AND FOR RELEASE OF THE COMPRESSION |
摘要 |
PROBLEM TO BE SOLVED: To compress and decompress data without requiring a corresponding data process or process time by compressing an input data stream into a compressed data stream according to the bits of an input word, and decompressing it into an output data stream. SOLUTION: The input data stream on a line 12 is inputted to an input register 16. The input data stream consists of a series of input words, each of which has 32-bit size. A processor 18 judges whether a data word inputted to the register includes at least one non-zero bit. When the input data word have a value whose one bit is not zero, the processor 18 inputs the input data word to a binary register 22 and the next input data word to a register 16, and marks a proper bit of a control word includes in a control word register 24. A compressing circuit 10 compress the input data stream into a compressed stream consisting of at least one control word. An decompressing circuit decompresses the compressed data stream and outputs the output data stream. |
申请公布号 |
JPH08279761(A) |
申请公布日期 |
1996.10.22 |
申请号 |
JP19960034472 |
申请日期 |
1996.02.22 |
申请人 |
INTERNATL BUSINESS MACH CORP <IBM> |
发明人 |
RONARUDO ERU HEINII;KIISU II DABOORU;ANSONII EFU SUCHIYUAATO;KUROODO EI BATSUGU;GUREGORII ESU FUERUDAAMAN;SUTEIIBUN EMU SUKOTSUTO |
分类号 |
B41J5/30;G06F5/00;G06T9/00;H03M7/30;(IPC1-7):H03M7/30 |
主分类号 |
B41J5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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