SE454734B - Forfarande och anordning for sendning och mottagning vid variabel lengdkodning - Google Patents
Forfarande och anordning for sendning och mottagning vid variabel lengdkodningInfo
- Publication number
- SE454734B SE454734B SE8700725A SE8700725A SE454734B SE 454734 B SE454734 B SE 454734B SE 8700725 A SE8700725 A SE 8700725A SE 8700725 A SE8700725 A SE 8700725A SE 454734 B SE454734 B SE 454734B
- Authority
- SE
- Sweden
- Prior art keywords
- block
- code tree
- decoding
- zero
- coding
- Prior art date
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)
- Vehicle Body Suspensions (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Priority Applications (5)
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 |
DE3851164T DE3851164T2 (de) | 1987-02-20 | 1988-02-11 | Verfahren und Vorrichtung zur variablen Längenkodierung. |
AT88850048T ATE110502T1 (de) | 1987-02-20 | 1988-02-11 | Verfahren und vorrichtung zur variablen längenkodierung. |
EP88850048A EP0279799B1 (de) | 1987-02-20 | 1988-02-11 | Verfahren und Vorrichtung zur variablen Längenkodierung |
US07/156,683 US4922510A (en) | 1987-02-20 | 1988-02-17 | Method and means for variable length coding |
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 (2)
Publication Number | Publication Date |
---|---|
SE8700725D0 SE8700725D0 (sv) | 1987-02-20 |
SE454734B true SE454734B (sv) | 1988-05-24 |
Family
ID=20367612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8700725A SE454734B (sv) | 1987-02-20 | 1987-02-20 | Forfarande och anordning for sendning och mottagning vid variabel lengdkodning |
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)
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 |
GB2268667B (en) * | 1992-06-24 | 1995-11-08 | Sony Broadcast & Communication | Serial data decoding |
GB2268666B (en) * | 1992-06-24 | 1996-03-20 | 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 |
KR100419545B1 (ko) * | 1994-10-06 | 2004-06-04 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 다른코딩원리들을이용한전송시스템 |
EP1802139A2 (de) * | 1995-03-15 | 2007-06-27 | 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 |
RU2354073C2 (ru) | 2002-01-22 | 2009-04-27 | Нокиа Корпорейшн | Кодирование коэффициентов преобразования в кодерах и/или декодерах изображения и видеоданных |
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 |
US7499595B2 (en) * | 2004-08-18 | 2009-03-03 | Cisco Technology, Inc. | Joint amplitude and position coding for photographic image and video coding |
US7499596B2 (en) * | 2004-08-18 | 2009-03-03 | Cisco Technology, Inc. | Amplitude coding for clustered transform coefficients |
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 |
US7454076B2 (en) * | 2004-06-15 | 2008-11-18 | Cisco Technology, Inc. | Hybrid variable length coding method for low bit rate video 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 |
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 |
US7471841B2 (en) | 2004-06-15 | 2008-12-30 | Cisco Technology, Inc. | Adaptive breakpoint for hybrid variable length coding |
US7680349B2 (en) | 2004-08-18 | 2010-03-16 | Cisco Technology, Inc. | Variable length coding for clustered transform coefficients in video compression |
US7620258B2 (en) * | 2004-08-18 | 2009-11-17 | Cisco Technology, Inc. | Extended amplitude coding for clustered transform coefficients |
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)
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 |
EP0111612B1 (de) * | 1982-11-26 | 1987-06-24 | International Business Machines Corporation | Verfahren und Einrichtung zur Kodierung eines Sprachsignals |
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 |
-
1987
- 1987-02-20 SE SE8700725A patent/SE454734B/sv not_active IP Right Cessation
-
1988
- 1988-02-11 DE DE3851164T patent/DE3851164T2/de not_active Expired - Fee Related
- 1988-02-11 AT AT88850048T patent/ATE110502T1/de not_active IP Right Cessation
- 1988-02-11 EP EP88850048A patent/EP0279799B1/de not_active Expired - Lifetime
- 1988-02-17 US US07/156,683 patent/US4922510A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3851164D1 (de) | 1994-09-29 |
SE8700725D0 (sv) | 1987-02-20 |
DE3851164T2 (de) | 1995-04-20 |
EP0279799B1 (de) | 1994-08-24 |
EP0279799A2 (de) | 1988-08-24 |
US4922510A (en) | 1990-05-01 |
ATE110502T1 (de) | 1994-09-15 |
EP0279799A3 (en) | 1990-12-27 |
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