DE3774761D1 - Dpcm-kodierer und zugehoeriger dekodierer. - Google Patents

Dpcm-kodierer und zugehoeriger dekodierer.

Info

Publication number
DE3774761D1
DE3774761D1 DE8787200889T DE3774761T DE3774761D1 DE 3774761 D1 DE3774761 D1 DE 3774761D1 DE 8787200889 T DE8787200889 T DE 8787200889T DE 3774761 T DE3774761 T DE 3774761T DE 3774761 D1 DE3774761 D1 DE 3774761D1
Authority
DE
Germany
Prior art keywords
dpcm encoder
related decoder
decoder
dpcm
encoder
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
DE8787200889T
Other languages
English (en)
Inventor
Jean-Yves Societe Civi Boisson
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3774761D1 publication Critical patent/DE3774761D1/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
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3044—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM]
    • H03M7/3046—Conversion to or from differential modulation with several bits only, i.e. the difference between successive samples being coded by more than one bit, e.g. differential pulse code modulation [DPCM] adaptive, e.g. adaptive differential pulse code modulation [ADPCM]
    • 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
    • H04N19/124—Quantisation
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
DE8787200889T 1986-05-23 1987-05-14 Dpcm-kodierer und zugehoeriger dekodierer. Expired - Lifetime DE3774761D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8607392A FR2599201A1 (fr) 1986-05-23 1986-05-23 Dispositif de codage a modulation differentielle par impulsions codees, dispositif de decodage associe et systeme de transmission comportant au moins un tel dispositif de codage ou de decodage

Publications (1)

Publication Number Publication Date
DE3774761D1 true DE3774761D1 (de) 1992-01-09

Family

ID=9335556

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787200889T Expired - Lifetime DE3774761D1 (de) 1986-05-23 1987-05-14 Dpcm-kodierer und zugehoeriger dekodierer.

Country Status (5)

Country Link
US (1) US4893123A (de)
EP (1) EP0246701B1 (de)
JP (2) JPS62287719A (de)
DE (1) DE3774761D1 (de)
FR (1) FR2599201A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633133B1 (fr) * 1988-06-17 1990-10-05 Thomson Csf Procede de regulation du remplissage de la memoire tampon d'un codeur d'images, et dispositif de regulation pour la mise en oeuvre de ce procede
FR2640841A1 (fr) * 1988-12-20 1990-06-22 Trt Telecom Radio Electr Dispositif de transmission de mots d'un code statistique
JPH0314383A (ja) * 1989-06-13 1991-01-23 Canon Inc 符号化装置
DE3926154A1 (de) * 1989-06-30 1991-01-10 Thomson Brandt Gmbh Signalverarbeitungssystem
GB9012326D0 (en) * 1990-06-01 1990-07-18 Thomson Consumer Electronics Wide screen television
US5311309A (en) * 1990-06-01 1994-05-10 Thomson Consumer Electronics, Inc. Luminance processing system for compressing and expanding video data
EP0557310B1 (de) * 1990-11-16 1997-06-04 Siemens Aktiengesellschaft Verfahren zur adaptiven quantisierung zwecks datenreduktion bei der übertragung von digitalen bildern
EP0616466B1 (de) * 1992-01-07 2000-06-07 Thomson Consumer Electronics, Inc. Horizontale Panoramierung für ein Breitbildschirmfernsehen
US5287188A (en) * 1992-01-07 1994-02-15 Thomson Consumer Electronics, Inc. Horizontal panning for wide screen television
GB9200281D0 (en) * 1992-01-08 1992-02-26 Thomson Consumer Electronics A pip horizontal panning circuit for wide screen television
JP2871316B2 (ja) * 1992-07-10 1999-03-17 日本ビクター株式会社 動画像符号化装置
JP3165296B2 (ja) * 1992-12-25 2001-05-14 三菱電機株式会社 フレーム間符号化処理方式及びフレーム間符号化処理方法及び符号化制御方式
FR2702857B1 (fr) * 1993-03-18 1995-06-02 Pierre Antonini Procédé et dispositif d'autorisation d'accès à un appareil comportant un système informatique d'exploitation.
US6870886B2 (en) * 1993-12-15 2005-03-22 Koninklijke Philips Electronics N.V. Method and apparatus for transcoding a digitally compressed high definition television bitstream to a standard definition television bitstream
JPH0865665A (ja) * 1994-08-25 1996-03-08 Hitachi Denshi Ltd 画像圧縮伝送方法および画像圧縮伝送システム
US5802213A (en) * 1994-10-18 1998-09-01 Intel Corporation Encoding video signals using local quantization levels
US6222881B1 (en) 1994-10-18 2001-04-24 Intel Corporation Using numbers of non-zero quantized transform signals and signal differences to determine when to encode video signals using inter-frame or intra-frame encoding
US5621901A (en) * 1994-10-31 1997-04-15 Intel Corporation Method and apparatus for serial bus elements of an hierarchical serial bus assembly to electrically represent data and control states to each other
US5926222A (en) * 1995-09-28 1999-07-20 Intel Corporation Bitrate estimator for selecting quantization levels for image encoding
US5926569A (en) * 1995-09-28 1999-07-20 Intel Corporation Bitrate damper for selecting quantization levels for image encoding
US5758092A (en) * 1995-11-14 1998-05-26 Intel Corporation Interleaved bitrate control for heterogeneous data streams
US5832125A (en) * 1995-12-07 1998-11-03 Intel Corporation Bit rate control using short-term and long-term performance characterization
US5812699A (en) * 1995-12-07 1998-09-22 Intel Corporation Counter-based controller for video compression
US6278740B1 (en) 1998-11-19 2001-08-21 Gates Technology Multi-bit (2i+2)-wire differential coding of digital signals using differential comparators and majority logic
NL2002377C2 (nl) * 2008-12-24 2010-06-28 Exsilent Res Bv Werkwijze en inrichting voor het coderen en/of decoderen van een reeks discrete bronwaarden en informatiedrager voorzien van een gecodeerde reeks bronwaarden.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580999A (en) * 1968-12-23 1971-05-25 Bell Telephone Labor Inc Redundancy reduction data compressor with luminance weighting
US3580399A (en) * 1969-10-29 1971-05-25 Midland Ross Corp Automatic trainline connector
JPS522212A (en) * 1975-06-24 1977-01-08 Kokusai Denshin Denwa Co Ltd <Kdd> Anticipaton coding system of television signal
US4179716A (en) * 1975-08-19 1979-12-18 Olympus Optical Company, Ltd. Tape end warning apparatus
US4179710A (en) * 1976-02-23 1979-12-18 Nippon Electric Co., Ltd. Predictive encoder with a non-linear quantizing characteristic
US4023199A (en) * 1976-03-09 1977-05-10 Bell Telephone Laboratories, Incorporated Method and apparatus for encoding color video signals
JPS55162686A (en) * 1979-06-07 1980-12-18 Nippon Hoso Kyokai <Nhk> Encoding system between frames
GB2050752B (en) * 1979-06-07 1984-05-31 Japan Broadcasting Corp Motion compensated interframe coding system
FR2461405A1 (fr) * 1979-07-09 1981-01-30 Temime Jean Pierre Systeme de codage et de decodage d'un signal visiophonique numerique
JPS56136093A (en) * 1980-03-26 1981-10-23 Fuji Photo Film Co Ltd Adaptive quantizer
JPS6054581A (ja) * 1983-09-06 1985-03-29 Nec Corp 差分符号化装置
JPS6159986A (ja) * 1984-08-31 1986-03-27 Fujitsu Ltd 符号化方式
US4661849A (en) * 1985-06-03 1987-04-28 Pictel Corporation Method and apparatus for providing motion estimation signals for communicating image sequences

Also Published As

Publication number Publication date
EP0246701B1 (de) 1991-11-27
FR2599201A1 (fr) 1987-11-27
JPS62287719A (ja) 1987-12-14
EP0246701A1 (de) 1987-11-25
JPH09121162A (ja) 1997-05-06
US4893123A (en) 1990-01-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee