JP3279852B2 - 信号復号装置 - Google Patents

信号復号装置

Info

Publication number
JP3279852B2
JP3279852B2 JP31019394A JP31019394A JP3279852B2 JP 3279852 B2 JP3279852 B2 JP 3279852B2 JP 31019394 A JP31019394 A JP 31019394A JP 31019394 A JP31019394 A JP 31019394A JP 3279852 B2 JP3279852 B2 JP 3279852B2
Authority
JP
Japan
Prior art keywords
circuit
decoding
code
length
signal
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
Application number
JP31019394A
Other languages
English (en)
Japanese (ja)
Other versions
JPH08167850A (ja
Inventor
浩已 渡辺
博樹 溝添
幸利 坪井
隆之 三代
修二 篠原
万寿男 奥
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP31019394A priority Critical patent/JP3279852B2/ja
Priority to TW84113151A priority patent/TW315572B/zh
Priority to KR1019950048628A priority patent/KR100401087B1/ko
Priority to US08/572,100 priority patent/US5675331A/en
Publication of JPH08167850A publication Critical patent/JPH08167850A/ja
Application granted granted Critical
Publication of JP3279852B2 publication Critical patent/JP3279852B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
JP31019394A 1994-12-14 1994-12-14 信号復号装置 Expired - Fee Related JP3279852B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP31019394A JP3279852B2 (ja) 1994-12-14 1994-12-14 信号復号装置
TW84113151A TW315572B (https=) 1994-12-14 1995-12-09
KR1019950048628A KR100401087B1 (ko) 1994-12-14 1995-12-12 여러종류의부호신호를복호하는복호장치
US08/572,100 US5675331A (en) 1994-12-14 1995-12-14 Decoding device for decoding a variety of code signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31019394A JP3279852B2 (ja) 1994-12-14 1994-12-14 信号復号装置

Publications (2)

Publication Number Publication Date
JPH08167850A JPH08167850A (ja) 1996-06-25
JP3279852B2 true JP3279852B2 (ja) 2002-04-30

Family

ID=18002295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31019394A Expired - Fee Related JP3279852B2 (ja) 1994-12-14 1994-12-14 信号復号装置

Country Status (4)

Country Link
US (1) US5675331A (https=)
JP (1) JP3279852B2 (https=)
KR (1) KR100401087B1 (https=)
TW (1) TW315572B (https=)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0178201B1 (ko) * 1995-08-31 1999-05-01 배순훈 가변 길이 복호화 장치
US5870039A (en) * 1996-06-19 1999-02-09 Matsushita Electric Industrial Co., Ltd. Code converter, variable length code decoder, and associated methods
US6011498A (en) * 1996-12-20 2000-01-04 Philips Electronics North America Corporation Dual-speed variable length decoding architecture for MPEG-2 video data
US6215822B1 (en) * 1997-12-30 2001-04-10 Sony Corporation Motion compensated digital video decoding and buffer memory addressing therefor
EP1099310A4 (en) * 1998-06-25 2005-12-21 Equator Technologies Inc PROCESSING CIRCUIT AND VARIABLE LENGTH ENCODING / DECODING METHOD
JP4427827B2 (ja) * 1998-07-15 2010-03-10 ソニー株式会社 データ処理方法、データ処理装置及び記録媒体
JP2000059234A (ja) * 1998-08-10 2000-02-25 Mitsubishi Electric Corp 可変長符号処理装置
US6636222B1 (en) * 1999-11-09 2003-10-21 Broadcom Corporation Video and graphics system with an MPEG video decoder for concurrent multi-row decoding
US6775414B1 (en) * 1999-11-19 2004-08-10 Ati International Srl Variable-length code decoder
US6771196B2 (en) * 1999-12-14 2004-08-03 Broadcom Corporation Programmable variable-length decoder
US7253917B2 (en) * 2001-06-11 2007-08-07 Canon Kabushiki Kaisha Image processing apparatus and its control method, computer program, and storage medium
CN1245839C (zh) * 2001-07-04 2006-03-15 矽统科技股份有限公司 分散式视频数据流解码方法
DE10133934A1 (de) * 2001-07-12 2003-01-30 Infineon Technologies Ag Kodiereinrichtung und Dekodiereinrichtung
US7075462B2 (en) * 2002-08-07 2006-07-11 Lsi Logic Corporation Speeding up variable length code decoding on general purpose processors
US6674376B1 (en) 2002-09-13 2004-01-06 Morpho Technologies Programmable variable length decoder circuit and method
US6707397B1 (en) * 2002-10-24 2004-03-16 Apple Computer, Inc. Methods and apparatus for variable length codeword concatenation
US6707398B1 (en) * 2002-10-24 2004-03-16 Apple Computer, Inc. Methods and apparatuses for packing bitstreams
US6867715B2 (en) * 2003-06-25 2005-03-15 Broadcom Corporation System, method, and apparatus for variable length decoder
US7349428B2 (en) * 2003-06-30 2008-03-25 Broadcom Corporation Data alignment of the packetized elementary streams in the coded data buffer for dual decode
EP1880471A4 (en) * 2005-05-13 2011-12-28 Qualcomm Inc METHOD AND DEVICE FOR IMPROVED MULTIMEDIA DECODER
JP4902854B2 (ja) * 2006-09-12 2012-03-21 パナソニック株式会社 動画像復号化装置、動画像復号化方法、動画像復号化プログラム、動画像符号化装置、動画像符号化方法、動画像符号化プログラム、及び動画像符号化復号化装置
US8250618B2 (en) * 2006-09-18 2012-08-21 Elemental Technologies, Inc. Real-time network adaptive digital video encoding/decoding
US8184715B1 (en) 2007-08-09 2012-05-22 Elemental Technologies, Inc. Method for efficiently executing video encoding operations on stream processor architectures
US8121197B2 (en) * 2007-11-13 2012-02-21 Elemental Technologies, Inc. Video encoding and decoding using parallel processors
US9876599B2 (en) * 2007-12-17 2018-01-23 Avago Technologies General Ip (Singapore) Pte. Ltd. System(s), method(s), and apparatus for accurate detection of the end of stream
JP2010045598A (ja) * 2008-08-12 2010-02-25 Fujitsu Ltd 可変長復号装置、及び、符号化装置
TWI424445B (zh) * 2009-12-29 2014-01-21 Macronix Int Co Ltd 指令解碼電路及其方法
US11211945B1 (en) * 2020-10-29 2021-12-28 Microsoft Technology Licensing, Llc Parallelized decoding of variable-length prefix codes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411614A (en) * 1977-06-27 1979-01-27 Nec Corp Code conversion unit for digital signal
US5173695A (en) * 1990-06-29 1992-12-22 Bell Communications Research, Inc. High-speed flexible variable-length-code decoder
US5241383A (en) * 1992-05-13 1993-08-31 Bell Communications Research, Inc. Pseudo-constant bit rate video coding with quantization parameter adjustment
DE69322713T2 (de) * 1992-08-31 1999-05-06 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Vorrichtung zur orthogonalen Transformationskodierung und -dekodierung
US5491480A (en) * 1994-05-25 1996-02-13 Industrial Technology Research Institute Variable length decoder using serial and parallel processing

Also Published As

Publication number Publication date
KR100401087B1 (ko) 2003-12-18
TW315572B (https=) 1997-09-11
US5675331A (en) 1997-10-07
KR960028554A (ko) 1996-07-22
JPH08167850A (ja) 1996-06-25

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