DE69323020D1 - Dekodierer für veränderliche Längenkodes - Google Patents

Dekodierer für veränderliche Längenkodes

Info

Publication number
DE69323020D1
DE69323020D1 DE69323020T DE69323020T DE69323020D1 DE 69323020 D1 DE69323020 D1 DE 69323020D1 DE 69323020 T DE69323020 T DE 69323020T DE 69323020 T DE69323020 T DE 69323020T DE 69323020 D1 DE69323020 D1 DE 69323020D1
Authority
DE
Germany
Prior art keywords
decoder
variable length
length codes
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 - Lifetime
Application number
DE69323020T
Other languages
English (en)
Other versions
DE69323020T2 (de
Inventor
Nozomu Ozaki
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of DE69323020D1 publication Critical patent/DE69323020D1/de
Application granted granted Critical
Publication of DE69323020T2 publication Critical patent/DE69323020T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length 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
DE1993623020 1992-09-24 1993-09-22 Dekodierer für veränderliche Längenkodes Expired - Lifetime DE69323020T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25503492A JP3136796B2 (ja) 1992-09-24 1992-09-24 可変長符号デコーダ

Publications (2)

Publication Number Publication Date
DE69323020D1 true DE69323020D1 (de) 1999-02-25
DE69323020T2 DE69323020T2 (de) 1999-06-17

Family

ID=17273256

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1993623020 Expired - Lifetime DE69323020T2 (de) 1992-09-24 1993-09-22 Dekodierer für veränderliche Längenkodes

Country Status (5)

Country Link
US (1) US5428356A (de)
EP (1) EP0589682B1 (de)
JP (1) JP3136796B2 (de)
KR (1) KR100324833B1 (de)
DE (1) DE69323020T2 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6336180B1 (en) 1997-04-30 2002-01-01 Canon Kabushiki Kaisha Method, apparatus and system for managing virtual memory with virtual-physical mapping
JP3227901B2 (ja) * 1993-05-21 2001-11-12 ソニー株式会社 変調方法及び復調装置
EP0665653B1 (de) * 1994-01-28 2001-12-05 Matsushita Electric Industrial Co., Ltd. Vorrichtung und Verfahren zur Dekodierung von Kodes variabler Länge
JP2746109B2 (ja) * 1994-03-09 1998-04-28 日本電気株式会社 ハフマン符号復号化回路
US5550542A (en) * 1994-05-04 1996-08-27 Matsushita Electric Corporation Of America Variable length code look-up table having separate code length determination
US5541595A (en) * 1994-05-19 1996-07-30 Matsushita Electric Corporation Of America Variable length code decoder for simultaneous decoding the most significant bits and the least significant bits of a variable length code
US5572208A (en) * 1994-07-29 1996-11-05 Industrial Technology Research Institute Apparatus and method for multi-layered decoding of variable length codes
KR0152035B1 (ko) * 1994-09-26 1998-10-15 김광호 가변장복호화방법 및 그 장치
KR960020018A (ko) * 1994-11-17 1996-06-17 배순훈 가변길이복호화장치
KR0154010B1 (ko) * 1995-03-16 1998-11-16 배순훈 가변길이 복호화 장치
JP2687926B2 (ja) * 1995-05-24 1997-12-08 日本電気株式会社 符号復号化装置
KR100203246B1 (ko) * 1995-10-19 1999-06-15 윤종용 고속의 가변장복호화장치
US5686916A (en) * 1995-12-28 1997-11-11 Philips Electronics North America Corp. Multi-code-book variable length decoder
US5757295A (en) * 1995-12-28 1998-05-26 Philips Electronics North America Corporation Variable length decoder with enhanced throughput due to parallel processing of contiguous code words of identical type
JP3304745B2 (ja) * 1996-03-11 2002-07-22 富士ゼロックス株式会社 可変長符号復号化器
US5841380A (en) * 1996-03-29 1998-11-24 Matsushita Electric Corporation Of America Variable length decoder and method for decoding two codes per clock cycle
US5696507A (en) * 1996-05-31 1997-12-09 Daewoo Electronics Co., Inc. Method and apparatus for decoding variable length code
AUPO648397A0 (en) 1997-04-30 1997-05-22 Canon Information Systems Research Australia Pty Ltd Improvements in multiprocessor architecture operation
US6311258B1 (en) 1997-04-03 2001-10-30 Canon Kabushiki Kaisha Data buffer apparatus and method for storing graphical data using data encoders and decoders
US6289138B1 (en) 1997-04-30 2001-09-11 Canon Kabushiki Kaisha General image processor
US6674536B2 (en) 1997-04-30 2004-01-06 Canon Kabushiki Kaisha Multi-instruction stream processor
AUPO647997A0 (en) * 1997-04-30 1997-05-22 Canon Information Systems Research Australia Pty Ltd Memory controller architecture
US6507898B1 (en) 1997-04-30 2003-01-14 Canon Kabushiki Kaisha Reconfigurable data cache controller
US6707463B1 (en) 1997-04-30 2004-03-16 Canon Kabushiki Kaisha Data normalization technique
JP3235555B2 (ja) 1997-05-14 2001-12-04 日本電気株式会社 信号復号装置及び信号復号方法並びに信号復号処理をコンピュータに行わせるためのプログラムを記録した記録媒体
US6121905A (en) * 1998-05-11 2000-09-19 Oak Technology, Inc. Method and apparatus for decoding JPEG symbols
US6414608B1 (en) 1999-06-09 2002-07-02 Matsushita Electric Industrial Co., Ltd. Variable length code decoding device, digital broadcast receiving apparatus, and DVD reproducing apparatus
KR100377756B1 (ko) * 2000-12-11 2003-03-29 엘지전자 주식회사 자기기록재생기의 클러치장치
US6603413B2 (en) 2001-02-07 2003-08-05 Canon Kabushiki Kaisha Variable-length decoding apparatus and method
JP2006254225A (ja) * 2005-03-11 2006-09-21 Toshiba Corp 可変長符号の復号装置及び復号方法
JP2007158698A (ja) * 2005-12-05 2007-06-21 Matsushita Electric Ind Co Ltd 画像復号装置及び画像復号方法
JP4841496B2 (ja) * 2007-04-26 2011-12-21 パナソニック株式会社 可変長符号復号化装置
JP2011139128A (ja) * 2009-12-25 2011-07-14 Samsung Electronics Co Ltd 可変長符号復号装置
JP2014116835A (ja) * 2012-12-11 2014-06-26 Toshiba Corp 復号装置、符号化装置、復号方法、及び符号化方法
US9252805B1 (en) * 2015-03-28 2016-02-02 International Business Machines Corporation Parallel huffman decoder
JP7115099B2 (ja) 2018-07-25 2022-08-09 セイコーエプソン株式会社 印刷装置、印刷方法および印刷システム

Family Cites Families (8)

* 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
EP0145397B1 (de) * 1983-12-08 1989-02-01 Crosfield Electronics Limited Feststellung von Codewörtern
US4899149A (en) * 1986-02-28 1990-02-06 Gary Kahan Method of and apparatus for decoding Huffman or variable-length coees
US4899148A (en) * 1987-02-25 1990-02-06 Oki Electric Industry Co., Ltd. Data compression method
JP2766302B2 (ja) * 1989-04-06 1998-06-18 株式会社東芝 可変長符号並列解読方法および装置
EP0493086B1 (de) * 1990-12-24 1997-05-21 Xerox Corporation Datendekodierungsvorrichtung
US5229863A (en) * 1990-12-24 1993-07-20 Xerox Corporation High speed CCITT decompressor
US5280349A (en) * 1992-02-13 1994-01-18 Industrial Technology Research Institute HDTV decoder

Also Published As

Publication number Publication date
EP0589682B1 (de) 1999-01-13
KR940008494A (ko) 1994-04-29
US5428356A (en) 1995-06-27
JP3136796B2 (ja) 2001-02-19
EP0589682A3 (de) 1994-12-14
KR100324833B1 (ko) 2002-06-20
EP0589682A2 (de) 1994-03-30
DE69323020T2 (de) 1999-06-17
JPH06104767A (ja) 1994-04-15

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Legal Events

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