ATE110502T1 - Verfahren und vorrichtung zur variablen längenkodierung. - Google Patents

Verfahren und vorrichtung zur variablen längenkodierung.

Info

Publication number
ATE110502T1
ATE110502T1 AT88850048T AT88850048T ATE110502T1 AT E110502 T1 ATE110502 T1 AT E110502T1 AT 88850048 T AT88850048 T AT 88850048T AT 88850048 T AT88850048 T AT 88850048T AT E110502 T1 ATE110502 T1 AT E110502T1
Authority
AT
Austria
Prior art keywords
coding
variable length
zero
block
last non
Prior art date
Application number
AT88850048T
Other languages
English (en)
Inventor
Harald Drusewitz
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Application granted granted Critical
Publication of ATE110502T1 publication Critical patent/ATE110502T1/de

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Vehicle Body Suspensions (AREA)
AT88850048T 1987-02-20 1988-02-11 Verfahren und vorrichtung zur variablen längenkodierung. ATE110502T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8700725A SE454734B (sv) 1987-02-20 1987-02-20 Forfarande och anordning for sendning och mottagning vid variabel lengdkodning

Publications (1)

Publication Number Publication Date
ATE110502T1 true ATE110502T1 (de) 1994-09-15

Family

ID=20367612

Family Applications (1)

Application Number Title Priority Date Filing Date
AT88850048T ATE110502T1 (de) 1987-02-20 1988-02-11 Verfahren und vorrichtung zur variablen längenkodierung.

Country Status (5)

Country Link
US (1) US4922510A (de)
EP (1) EP0279799B1 (de)
AT (1) ATE110502T1 (de)
DE (1) DE3851164T2 (de)
SE (1) SE454734B (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9000338A (nl) * 1989-06-02 1991-01-02 Koninkl Philips Electronics Nv Digitaal transmissiesysteem, zender en ontvanger te gebruiken in het transmissiesysteem en registratiedrager verkregen met de zender in de vorm van een optekeninrichting.
US5173787A (en) * 1990-03-07 1992-12-22 Fuji Photo Film Co., Ltd. Method for storing image signals
GB2268666B (en) * 1992-06-24 1996-03-20 Sony Broadcast & Communication Serial data decoding
GB2268667B (en) * 1992-06-24 1995-11-08 Sony Broadcast & Communication Serial data decoding
US5343195A (en) * 1992-12-18 1994-08-30 Thomson Consumer Electronics, Inc. Variable length codeword decoding apparatus
US5400075A (en) * 1993-01-13 1995-03-21 Thomson Consumer Electronics, Inc. Adaptive variable length encoder/decoder
CN1090409C (zh) * 1994-10-06 2002-09-04 皇家菲利浦电子有限公司 采用不同编码原理的传送系统
EP1802135A3 (de) * 1995-03-15 2008-11-12 Kabushiki Kaisha Toshiba Kodier- und/oder Dekodiersysteme für Bewegtbilder
US5648774A (en) * 1995-05-08 1997-07-15 Industrial Technology Research Institute Variable length coding with three-field codes
US6134518A (en) * 1997-03-04 2000-10-17 International Business Machines Corporation Digital audio signal coding using a CELP coder and a transform coder
JP3189876B2 (ja) * 1997-06-09 2001-07-16 日本電気株式会社 可変長符号復号化回路
US6049040A (en) * 1997-09-17 2000-04-11 Biles; Scott Douglas Universal cable guide
WO2003063501A1 (en) * 2002-01-22 2003-07-31 Nokia Corporation Coding transform coefficients in image/video encoders and/or decoders
US7212681B1 (en) * 2003-01-15 2007-05-01 Cisco Technology, Inc. Extension of two-dimensional variable length coding for image compression
US7194137B2 (en) * 2003-05-16 2007-03-20 Cisco Technology, Inc. Variable length coding method and apparatus for video compression
KR100579417B1 (ko) * 2004-04-06 2006-05-12 (주)씨앤에스 테크놀로지 고속 영상압축장치
US7499596B2 (en) * 2004-08-18 2009-03-03 Cisco Technology, Inc. Amplitude coding for clustered transform coefficients
US7471841B2 (en) 2004-06-15 2008-12-30 Cisco Technology, Inc. Adaptive breakpoint for hybrid variable length coding
US7454073B2 (en) * 2004-06-15 2008-11-18 Cisco Technology, Inc. Video compression using multiple variable length coding processes for multiple classes of transform coefficient blocks
US7499595B2 (en) * 2004-08-18 2009-03-03 Cisco Technology, Inc. Joint amplitude and position coding for photographic image and video coding
US7471840B2 (en) * 2004-08-18 2008-12-30 Cisco Technology, Inc. Two-dimensional variable length coding of runs of zero and non-zero transform coefficients for image compression
US7492956B2 (en) * 2004-08-18 2009-02-17 Cisco Technology, Inc. Video coding using multi-dimensional amplitude coding and 2-D non-zero/zero cluster position coding
US7454076B2 (en) * 2004-06-15 2008-11-18 Cisco Technology, Inc. Hybrid variable length coding method for low bit rate video coding
US7620258B2 (en) * 2004-08-18 2009-11-17 Cisco Technology, Inc. Extended amplitude coding for clustered transform coefficients
US7680349B2 (en) * 2004-08-18 2010-03-16 Cisco Technology, Inc. Variable length coding for clustered transform coefficients in video compression
US20060176953A1 (en) * 2005-02-04 2006-08-10 Nader Mohsenian Method and system for video encoding with rate control
US7242328B1 (en) * 2006-02-03 2007-07-10 Cisco Technology, Inc. Variable length coding for sparse coefficients

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125861A (en) * 1977-08-18 1978-11-14 Bell Telephone Laboratories, Incorporated Video signal encoding
US4541012A (en) * 1982-01-04 1985-09-10 Compression Labs, Inc. Video bandwidth reduction system employing interframe block differencing and transform domain coding
DE3276651D1 (en) * 1982-11-26 1987-07-30 Ibm Speech signal coding method and apparatus
JPS61107818A (ja) * 1984-10-30 1986-05-26 Nec Corp エントロピ−符号化方式とその装置

Also Published As

Publication number Publication date
SE454734B (sv) 1988-05-24
EP0279799B1 (de) 1994-08-24
SE8700725D0 (sv) 1987-02-20
DE3851164T2 (de) 1995-04-20
EP0279799A2 (de) 1988-08-24
EP0279799A3 (en) 1990-12-27
DE3851164D1 (de) 1994-09-29
US4922510A (en) 1990-05-01

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Legal Events

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