CA2259513A1 - Compression and decompression scheme performed on shared workstation memory by media coprocessor - Google Patents

Compression and decompression scheme performed on shared workstation memory by media coprocessor

Info

Publication number
CA2259513A1
CA2259513A1 CA002259513A CA2259513A CA2259513A1 CA 2259513 A1 CA2259513 A1 CA 2259513A1 CA 002259513 A CA002259513 A CA 002259513A CA 2259513 A CA2259513 A CA 2259513A CA 2259513 A1 CA2259513 A1 CA 2259513A1
Authority
CA
Canada
Prior art keywords
compression
scheme performed
decompression scheme
workstation memory
decompression
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002259513A
Other languages
French (fr)
Other versions
CA2259513C (en
Inventor
Mark W. Troeller
Michael L. Fuccio
Henry P. Moreton
Bent Hagemark
Te-Li Lau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graphics Properties Holdings Inc
Original Assignee
Silicon Graphics, Inc.
Mark W. Troeller
Michael L. Fuccio
Henry P. Moreton
Bent Hagemark
Te-Li Lau
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Silicon Graphics, Inc., Mark W. Troeller, Michael L. Fuccio, Henry P. Moreton, Bent Hagemark, Te-Li Lau filed Critical Silicon Graphics, Inc.
Publication of CA2259513A1 publication Critical patent/CA2259513A1/en
Application granted granted Critical
Publication of CA2259513C publication Critical patent/CA2259513C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Abstract

The present invention relates to a general purpose circuit that maximizes the computing power of a Unix workstation or other computer system for processing image or other data in accordance with a selected one or ones of several alternative compression and decompression algorithms. The present invention dynamically allocates system memory for storage of both compressed and uncompressed data and ensures adequate compression and decompression rates.
CA002259513A 1996-09-13 1997-07-03 Compression and decompression scheme performed on shared workstation memory by media coprocessor Expired - Lifetime CA2259513C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/713,599 US5768445A (en) 1996-09-13 1996-09-13 Compression and decompression scheme performed on shared workstation memory by media coprocessor
US08/713,599 1996-09-13
PCT/US1997/012437 WO1998011729A1 (en) 1996-09-13 1997-07-03 Compression and decompression scheme performed on shared workstation memory by media coprocessor

Publications (2)

Publication Number Publication Date
CA2259513A1 true CA2259513A1 (en) 1998-03-19
CA2259513C CA2259513C (en) 2006-11-21

Family

ID=24866752

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002259513A Expired - Lifetime CA2259513C (en) 1996-09-13 1997-07-03 Compression and decompression scheme performed on shared workstation memory by media coprocessor

Country Status (7)

Country Link
US (1) US5768445A (en)
EP (1) EP0925687B1 (en)
JP (1) JP2001500686A (en)
AU (1) AU3602797A (en)
CA (1) CA2259513C (en)
DE (1) DE69720477T2 (en)
WO (1) WO1998011729A1 (en)

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US9143546B2 (en) 2000-10-03 2015-09-22 Realtime Data Llc System and method for data feed acceleration and encryption
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Also Published As

Publication number Publication date
EP0925687B1 (en) 2003-04-02
DE69720477T2 (en) 2003-12-18
AU3602797A (en) 1998-04-02
CA2259513C (en) 2006-11-21
DE69720477D1 (en) 2003-05-15
US5768445A (en) 1998-06-16
WO1998011729A1 (en) 1998-03-19
JP2001500686A (en) 2001-01-16
EP0925687A1 (en) 1999-06-30

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Effective date: 20170704