| 发明名称 |
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| 摘要 |
A data processing system having a compression and decompression apparatus based on the Lempel-Ziv algorithm. The compression apparatus includes a history RAM unit for receiving and storing one or more data elements and a coding unit for determining whether received data elements previously have been stored in the history RAM unit and are a candidate for compression. If a received data element matches at least one of the stored data elements, an address of the matching stored data element is generated. The compression apparatus generates a compression token comprising an identification of whether a data element is compressed, the length of the coded data within a plurality of predetermined data length categories and an address. The decompression apparatus also includes a history RAM unit for storing received data elements and includes a circuit for receiving a compression token and determining- the storage addresses of the next data element from the length and address information contained in the token. The apparatus can identify the next address at high speed by a parallel processing using the predetermined length categories. <IMAGE> |
| 申请公布号 |
JP2986076(B2) |
申请公布日期 |
1999.12.06 |
| 申请号 |
JP19950206924 |
申请日期 |
1995.08.14 |
| 申请人 |
INTAANASHONARU BIJINESU MASHIINZU CORP |
发明人 |
HENRII RUDORUFU FUAAMAA;AN ABA UIRUSON |
| 分类号 |
G06F12/10;G06F5/00;G06F12/00;G06F17/30;G06T9/00;H03M7/30;H03M7/40;H03M7/46;(IPC1-7):H03M7/46 |
主分类号 |
G06F12/10 |
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