DE69524269T2 - Vorrichtung und Verfahren zur Dekodierung von Kodes variabler Länge - Google Patents
Vorrichtung und Verfahren zur Dekodierung von Kodes variabler LängeInfo
- Publication number
- DE69524269T2 DE69524269T2 DE69524269T DE69524269T DE69524269T2 DE 69524269 T2 DE69524269 T2 DE 69524269T2 DE 69524269 T DE69524269 T DE 69524269T DE 69524269 T DE69524269 T DE 69524269T DE 69524269 T2 DE69524269 T2 DE 69524269T2
- Authority
- DE
- Germany
- Prior art keywords
- variable length
- decoding codes
- decoding
- codes
- variable
- 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.)
- Expired - Fee Related
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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
- H03M7/42—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory
- H03M7/425—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code using table look-up for the coding or decoding process, e.g. using read-only memory for the decoding process only
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP826194 | 1994-01-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69524269D1 DE69524269D1 (de) | 2002-01-17 |
DE69524269T2 true DE69524269T2 (de) | 2002-07-18 |
Family
ID=11688213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69524269T Expired - Fee Related DE69524269T2 (de) | 1994-01-28 | 1995-01-25 | Vorrichtung und Verfahren zur Dekodierung von Kodes variabler Länge |
Country Status (4)
Country | Link |
---|---|
US (1) | US5625355A (de) |
EP (1) | EP0665653B1 (de) |
KR (1) | KR950024594A (de) |
DE (1) | DE69524269T2 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5835035A (en) * | 1995-12-28 | 1998-11-10 | Philips Electronics North America Corporation | High performance variable length decoder with two-word bit stream segmentation and related method |
US5668548A (en) * | 1995-12-28 | 1997-09-16 | Philips Electronics North America Corp. | High performance variable length decoder with enhanced throughput due to tagging of the input bit stream and parallel processing of contiguous code words |
US5831557A (en) * | 1996-06-11 | 1998-11-03 | Apple Computer, Inc. | Variable length code decoding according to optimum cache storage requirements |
US6011498A (en) * | 1996-12-20 | 2000-01-04 | Philips Electronics North America Corporation | Dual-speed variable length decoding architecture for MPEG-2 video data |
US6507898B1 (en) * | 1997-04-30 | 2003-01-14 | Canon Kabushiki Kaisha | Reconfigurable data cache controller |
JPH11215008A (ja) * | 1998-01-27 | 1999-08-06 | Oki Electric Ind Co Ltd | 復号回路 |
US6904174B1 (en) * | 1998-12-11 | 2005-06-07 | Intel Corporation | Simplified predictive video encoder |
US6408029B1 (en) | 1998-04-02 | 2002-06-18 | Intel Corporation | Method and apparatus for simplifying real-time data encoding |
US7046734B2 (en) * | 1998-04-02 | 2006-05-16 | Intel Corporation | Method and apparatus for performing real-time data encoding |
US6121905A (en) * | 1998-05-11 | 2000-09-19 | Oak Technology, Inc. | Method and apparatus for decoding JPEG symbols |
US6125406A (en) * | 1998-05-15 | 2000-09-26 | Xerox Corporation | Bi-directional packing data device enabling forward/reverse bit sequences with two output latches |
US6065066A (en) * | 1998-06-02 | 2000-05-16 | Adaptec, Inc. | System for data stream packer and unpacker integrated circuit which align data stored in a two level latch |
CA2247548A1 (en) * | 1998-09-15 | 2000-03-15 | Steven M. Nowick | A high-speed asynchronous decompression circuit for variable-length-coded data |
US6263023B1 (en) | 1998-10-15 | 2001-07-17 | International Business Machines Corporation | High definition television decoder |
US7095341B2 (en) * | 1999-12-14 | 2006-08-22 | Broadcom Corporation | Programmable variable-length decoder |
US6518896B1 (en) | 2000-01-15 | 2003-02-11 | Sony Electronics, Inc. | Multiple symbol length lookup table |
US6459738B1 (en) * | 2000-01-28 | 2002-10-01 | Njr Corporation | Method and apparatus for bitstream decoding |
US6801668B2 (en) * | 2000-12-20 | 2004-10-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of compressing data by use of self-prefixed universal variable length code |
US20050244869A1 (en) * | 2004-04-05 | 2005-11-03 | Brown-Driver Vickie L | Modulation of transthyretin expression |
US8295343B2 (en) | 2005-11-18 | 2012-10-23 | Apple Inc. | Video bit rate control method |
US8233535B2 (en) | 2005-11-18 | 2012-07-31 | Apple Inc. | Region-based processing of predicted pixels |
US20070116117A1 (en) * | 2005-11-18 | 2007-05-24 | Apple Computer, Inc. | Controlling buffer states in video compression coding to enable editing and distributed encoding |
US8780997B2 (en) * | 2005-11-18 | 2014-07-15 | Apple Inc. | Regulation of decode-side processing based on perceptual masking |
US8031777B2 (en) * | 2005-11-18 | 2011-10-04 | Apple Inc. | Multipass video encoding and rate control using subsampling of frames |
JP5501014B2 (ja) * | 2010-02-05 | 2014-05-21 | キヤノン株式会社 | 情報処理装置、情報処理方法、プログラム及び記憶媒体 |
US9846565B2 (en) * | 2011-10-27 | 2017-12-19 | Hewlett Packard Enterprise Development Lp | Shiftable memory employing ring registers |
WO2013130109A1 (en) | 2012-03-02 | 2013-09-06 | Hewlett-Packard Development Company L.P. | Shiftable memory defragmentation |
US9923576B2 (en) * | 2014-09-16 | 2018-03-20 | Cisco Technology, Inc. | Decoding techniques using a programmable priority encoder |
US9712848B2 (en) * | 2014-11-10 | 2017-07-18 | Vixs Systems Inc. | Frame buffer compression using separate aggregation of fixed-length and variable-length components of codewords |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5411614A (en) * | 1977-06-27 | 1979-01-27 | Nec Corp | Code conversion unit for digital signal |
US4899149A (en) * | 1986-02-28 | 1990-02-06 | Gary Kahan | Method of and apparatus for decoding Huffman or variable-length coees |
US5173695A (en) * | 1990-06-29 | 1992-12-22 | Bell Communications Research, Inc. | High-speed flexible variable-length-code decoder |
DE69228641T2 (de) * | 1991-04-10 | 1999-10-07 | Mitsubishi Electric Corp | Kodierer und dekodierer |
EP0512623B1 (de) * | 1991-05-10 | 1999-09-29 | Koninklijke Philips Electronics N.V. | Fernsehsystem zum Übertragen von Bildsignalen in einem digitalen Format |
US5247363A (en) * | 1992-03-02 | 1993-09-21 | Rca Thomson Licensing Corporation | Error concealment apparatus for hdtv receivers |
US5233348A (en) * | 1992-03-26 | 1993-08-03 | General Instrument Corporation | Variable length code word decoder for use in digital communication systems |
JP3136796B2 (ja) * | 1992-09-24 | 2001-02-19 | ソニー株式会社 | 可変長符号デコーダ |
US5426463A (en) * | 1993-02-22 | 1995-06-20 | Rca Thomson Licensing Corporation | Apparatus for controlling quantizing in a video signal compressor |
US5488366A (en) * | 1993-10-12 | 1996-01-30 | Industrial Technology Research Institute | Segmented variable length decoding apparatus for sequentially decoding single code-word within a fixed number of decoding cycles |
-
1995
- 1995-01-25 KR KR1019950001251A patent/KR950024594A/ko not_active Application Discontinuation
- 1995-01-25 DE DE69524269T patent/DE69524269T2/de not_active Expired - Fee Related
- 1995-01-25 EP EP95100985A patent/EP0665653B1/de not_active Expired - Lifetime
- 1995-01-27 US US08/379,900 patent/US5625355A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0665653B1 (de) | 2001-12-05 |
US5625355A (en) | 1997-04-29 |
KR950024594A (ko) | 1995-08-21 |
EP0665653A3 (de) | 1997-04-02 |
DE69524269D1 (de) | 2002-01-17 |
EP0665653A2 (de) | 1995-08-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |