WO2008087750A1 - テーブル装置、可変長符号化装置、可変長復号装置及び可変長符号化復号装置 - Google Patents

テーブル装置、可変長符号化装置、可変長復号装置及び可変長符号化復号装置 Download PDF

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Publication number
WO2008087750A1
WO2008087750A1 PCT/JP2007/059603 JP2007059603W WO2008087750A1 WO 2008087750 A1 WO2008087750 A1 WO 2008087750A1 JP 2007059603 W JP2007059603 W JP 2007059603W WO 2008087750 A1 WO2008087750 A1 WO 2008087750A1
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WO
WIPO (PCT)
Prior art keywords
variable
length
length encoding
decoding device
conversion value
Prior art date
Application number
PCT/JP2007/059603
Other languages
English (en)
French (fr)
Inventor
Tomomi Ei
Noriyuki Minegishi
Original Assignee
Mitsubishi Electric Corporation
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 Mitsubishi Electric Corporation filed Critical Mitsubishi Electric Corporation
Priority to EP07743038.7A priority Critical patent/EP2104236B1/en
Priority to CN2007800498034A priority patent/CN101584120B/zh
Priority to US12/515,841 priority patent/US8291150B2/en
Priority to JP2008553947A priority patent/JP4703730B2/ja
Publication of WO2008087750A1 publication Critical patent/WO2008087750A1/ja

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Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion 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
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

 一致信号を出力しているセルPEを示す一致セル番号を出力する一致セル番号出力部25と、変換テーブルを構成している探索木のノードの中から、その一致セル番号に対応するノードを特定するアドレスデコーダ26とを設け、コンフィグレーションメモリ21から上記ノードに割り当てられているデータ変換値を取得し、そのデータ変換値が符号化結果等を示すデータであれば、そのデータ変換値を外部に出力し、そのデータ変換値が探索木の分岐コードであれば、比較命令信号を与えるセルPEを更新する。
PCT/JP2007/059603 2007-01-19 2007-05-09 テーブル装置、可変長符号化装置、可変長復号装置及び可変長符号化復号装置 WO2008087750A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07743038.7A EP2104236B1 (en) 2007-01-19 2007-05-09 Table device, variable-length encoding device, variable-length decoding device, and variable-length encoding/decoding device
CN2007800498034A CN101584120B (zh) 2007-01-19 2007-05-09 表装置、可变长度编码装置、可变长度解码装置
US12/515,841 US8291150B2 (en) 2007-01-19 2007-05-09 Table device, variable length coding apparatus, variable length decoding apparatus, and variable length coding and decoding apparatus
JP2008553947A JP4703730B2 (ja) 2007-01-19 2007-05-09 テーブル装置、可変長符号化装置、可変長復号装置及び可変長符号化復号装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007010615 2007-01-19
JP2007-010615 2007-01-19

Publications (1)

Publication Number Publication Date
WO2008087750A1 true WO2008087750A1 (ja) 2008-07-24

Family

ID=39635759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/059603 WO2008087750A1 (ja) 2007-01-19 2007-05-09 テーブル装置、可変長符号化装置、可変長復号装置及び可変長符号化復号装置

Country Status (5)

Country Link
US (1) US8291150B2 (ja)
EP (1) EP2104236B1 (ja)
JP (1) JP4703730B2 (ja)
CN (1) CN101584120B (ja)
WO (1) WO2008087750A1 (ja)

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JP2010166444A (ja) * 2009-01-16 2010-07-29 Canon Inc 復号装置及びその制御方法
JP2010166445A (ja) * 2009-01-16 2010-07-29 Canon Inc 復号装置及びその制御方法
JP2012090021A (ja) * 2010-10-19 2012-05-10 Mitsubishi Electric Corp データ処理装置及び可変長符号化装置及び可変長復号装置

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US8004431B2 (en) * 2008-12-09 2011-08-23 Qualcomm Incorporated Fast parsing of variable-to-fixed-length codes
US9819358B2 (en) * 2010-02-19 2017-11-14 Skype Entropy encoding based on observed frequency
US9313526B2 (en) 2010-02-19 2016-04-12 Skype Data compression for video
US9078009B2 (en) 2010-02-19 2015-07-07 Skype Data compression for video utilizing non-translational motion information
US9609342B2 (en) 2010-02-19 2017-03-28 Skype Compression for frames of a video signal using selected candidate blocks
US9195675B2 (en) 2011-02-24 2015-11-24 A9.Com, Inc. Decoding of variable-length data with group formats
US9727460B2 (en) * 2013-11-01 2017-08-08 Samsung Electronics Co., Ltd. Selecting a memory mapping scheme by determining a number of functional units activated in each cycle of a loop based on analyzing parallelism of a loop
US9998974B2 (en) * 2013-11-28 2018-06-12 Nec Corporation Wireless communication terminal, storage medium, and cell selection method
DE102016108081A1 (de) * 2016-05-02 2017-11-02 Denso Corporation Mikroprozessor mit Zusatz-Befehlen für Binärsuche und zugehöriges Suchverfahren
US20180095760A1 (en) * 2016-09-30 2018-04-05 James D. Guilford Instruction set for variable length integer coding
CN114930298A (zh) * 2020-03-03 2022-08-19 英特尔公司 图形处理单元和中央处理单元合作可变长度数据比特打包

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See also references of EP2104236A4

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010166444A (ja) * 2009-01-16 2010-07-29 Canon Inc 復号装置及びその制御方法
JP2010166445A (ja) * 2009-01-16 2010-07-29 Canon Inc 復号装置及びその制御方法
JP2012090021A (ja) * 2010-10-19 2012-05-10 Mitsubishi Electric Corp データ処理装置及び可変長符号化装置及び可変長復号装置

Also Published As

Publication number Publication date
EP2104236B1 (en) 2018-08-15
US20100057810A1 (en) 2010-03-04
JP4703730B2 (ja) 2011-06-15
EP2104236A1 (en) 2009-09-23
CN101584120B (zh) 2013-01-09
EP2104236A4 (en) 2012-08-01
US8291150B2 (en) 2012-10-16
CN101584120A (zh) 2009-11-18
JPWO2008087750A1 (ja) 2010-05-06

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