发明名称 |
SEQUENTIAL DECODING DEVICE FOR VARIABLE LONG WORD WITH CONTROLLED RUN LENGTH |
摘要 |
Apparatus for converting binary digital data from one form to another according to a variable word length code of fixed rate comprises word position indicating circuitry for indicating predetermined word position states of data in a data storage unit and conversion circuitry for sequentially converting a constant number of input bits at a time into the corresponding number of bits in said other form in dependence upon the contents of the data storage unit and the word position indication. The constant number of bits is less than the number of bits in the longest variable length word in the input data code form. The word position indicating circuitry either generates an updated function representing the current position of the word boundary in the data storage unit or recognizes the boundary from distinctive word ending patterns in the data storage unit. |
申请公布号 |
JPS5547539(A) |
申请公布日期 |
1980.04.04 |
申请号 |
JP19790129587 |
申请日期 |
1979.10.09 |
申请人 |
IBM |
发明人 |
JIYOON ESU EGENBAAGAA;POORU HATSUJISU |
分类号 |
H03M7/14;G06F5/00;G11B20/14;H03M7/00;H03M7/30;H03M7/40;H03M7/46;H04L23/00;H04L25/49 |
主分类号 |
H03M7/14 |
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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