ES8500681A1 - Un sistema de comunicacion digital - Google Patents

Un sistema de comunicacion digital

Info

Publication number
ES8500681A1
ES8500681A1 ES83526342A ES526342A ES8500681A1 ES 8500681 A1 ES8500681 A1 ES 8500681A1 ES 83526342 A ES83526342 A ES 83526342A ES 526342 A ES526342 A ES 526342A ES 8500681 A1 ES8500681 A1 ES 8500681A1
Authority
ES
Spain
Prior art keywords
words
code word
difference
encoder
transmission system
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
Application number
ES83526342A
Other languages
English (en)
Other versions
ES526342A0 (es
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES526342A0 publication Critical patent/ES526342A0/es
Publication of ES8500681A1 publication Critical patent/ES8500681A1/es
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Color Television Systems (AREA)

Abstract

SISTEMA DE COMUNICACION DIGITAL EN EL QUE LA VELOCIDAD DE TRANSMISION EN EL CIRCUITO SE REDUCE.CONSTA DE UN CODIFICADOR DEL LADO DE LA TRANSMISION QUE TRANSFORMA UNA SECUENCIA DE CARACTERES DE ENTRADA DIGITALES EN UN CODIGO DE LINEA DE VELOCIDAD DE TRANSMISION REDUCIDA; Y DE UN DECODIFICADOR DEL LADO DE RECEPCION QUE TRANSFORMA EL CODIGO DE LINEA EN UNA SECUENCIA DE CARACTERES DESALIDA DIGITALES CON LA MISMA VELOCIDAD DE TRANSMISION QUE EL ORIGINAL. EL CODIFICADOR COMPRENDE UN CODIFICADOR DPCM HIBRIDO Y UN CUANTIZADOR PCM AUTOADAPTABLE. EL DECODIFICADOR COMPRENDE UN DECODIFICADOR DPCM HIBRIDO Y UN RECUANTIZADOR PCM AUTOADAPTABLE.
ES83526342A 1982-10-09 1983-10-07 Un sistema de comunicacion digital Expired ES8500681A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3237578A DE3237578C2 (de) 1982-10-09 1982-10-09 Digitales Nachrichtenübertragungssystem, insbesondere Farbfernsehübertragungssystem

Publications (2)

Publication Number Publication Date
ES526342A0 ES526342A0 (es) 1984-06-16
ES8500681A1 true ES8500681A1 (es) 1984-06-16

Family

ID=6175409

Family Applications (1)

Application Number Title Priority Date Filing Date
ES83526342A Expired ES8500681A1 (es) 1982-10-09 1983-10-07 Un sistema de comunicacion digital

Country Status (5)

Country Link
US (1) US4573167A (es)
EP (1) EP0106279B1 (es)
JP (1) JPS5994937A (es)
DE (2) DE3237578C2 (es)
ES (1) ES8500681A1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60237738A (ja) * 1984-05-11 1985-11-26 Sony Corp デイジタル信号伝送装置
US4875222A (en) * 1984-06-28 1989-10-17 Canon Kabushiki Kaisha Information signal transmission system by predictive differential coding
US4716453A (en) * 1985-06-20 1987-12-29 At&T Bell Laboratories Digital video transmission system
US4764971A (en) * 1985-11-25 1988-08-16 Eastman Kodak Company Image processing method including image segmentation
US4785356A (en) * 1987-04-24 1988-11-15 International Business Machines Corporation Apparatus and method of attenuating distortion introduced by a predictive coding image compressor
US4897855A (en) * 1987-12-01 1990-01-30 General Electric Company DPCM system with adaptive quantizer having unchanging bin number ensemble
US5016100A (en) * 1988-04-04 1991-05-14 Zenith Electronics Corporation Transmission of a video signal using adaptive delta modulation
US4888640A (en) * 1988-05-16 1989-12-19 General Electric Company Refresh system for digital signals
US4954879A (en) * 1988-12-20 1990-09-04 The Boeing Company Apparatus and method for compressing a video signal
GB2226470A (en) * 1988-12-23 1990-06-27 Philips Electronic Associated Encoding,decoding and processing pixel values for storing and reproducing a digitised image in expanded format
DE4216811A1 (de) * 1992-05-21 1993-11-25 Bosch Gmbh Robert Verfahren zur numerischen Differentiation eines digitalen Sensorsignales
US5621760A (en) * 1992-07-21 1997-04-15 Kokusai Electric Co., Ltd. Speech coding transmission system and coder and decoder therefor
US8107751B2 (en) * 2007-03-16 2012-01-31 Sharp Laboratories Of America, Inc. DPCM with adaptive range and PCM escape mode
US8406314B2 (en) * 2007-11-28 2013-03-26 Sharp Laboratories Of America, Inc. Two-dimensional DPCM with PCM escape mode
US8488684B2 (en) * 2008-09-17 2013-07-16 Qualcomm Incorporated Methods and systems for hybrid MIMO decoding
JP6145965B2 (ja) * 2012-04-19 2017-06-14 富士ゼロックス株式会社 画像符号化装置及び画像復号化装置並びにプログラム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT699938A (es) * 1962-06-28
US3403226A (en) * 1965-09-30 1968-09-24 Bell Telephone Labor Inc Reduced bandwidth dual mode encoding of video signals
US3824590A (en) * 1973-03-26 1974-07-16 Bell Telephone Labor Inc Adaptive interpolating video encoder
JPS552662B2 (es) * 1973-06-15 1980-01-21
DE2355676C3 (de) * 1973-11-07 1979-01-18 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung zur Übertragung von Signalen mit Differenz-Pulscodemodulation (DPCM)

Also Published As

Publication number Publication date
EP0106279B1 (de) 1988-07-27
EP0106279A3 (en) 1986-12-30
US4573167A (en) 1986-02-25
ES526342A0 (es) 1984-06-16
DE3237578C2 (de) 1984-11-29
JPS5994937A (ja) 1984-05-31
DE3377562D1 (en) 1988-09-01
DE3237578A1 (de) 1984-04-12
EP0106279A2 (de) 1984-04-25

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