Invention Grant
- Patent Title: Compression with adjustable quality/bandwidth capability
- Patent Title (中): 具有可调质量/带宽能力的压缩
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Application No.: US13105401Application Date: 2011-05-11
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Publication No.: US08350732B2Publication Date: 2013-01-08
- Inventor: David A. Carlson
- Applicant: David A. Carlson
- Applicant Address: US CA San Jose
- Assignee: Cavium, Inc.
- Current Assignee: Cavium, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Hamilton, Brook, Smith & Reynolds, P.C.
- Main IPC: H03M7/30
- IPC: H03M7/30

Abstract:
The disclosure provides a system and method to vary bandwidth/speed of a compression engine to tradeoff with compression quality. The system comprises an input port receiving a data stream having a current byte and a stream of preceding and subsequent bytes thereof; a history memory storing the stream of preceding bytes in blocks of history data an index engine having a table of keys associated to memory addresses of the blocks, the index engine accessing the table to output a plurality of potential string matches upon entry of the current byte; a search engine processing the potential string matches by fetching the blocks of history data associated with each of the plurality of potential string matches and comparing a portion of each of the blocks to the current byte to output a string upon matching consecutive bytes in the block to the current byte and subsequent bytes thereof; and a control input limiting the number of potential string matches processed by the search engine.
Public/Granted literature
- US20120286979A1 Compression With Adjustable Quality/Bandwidth Capability Public/Granted day:2012-11-15
Information query
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