IT989317B - Sistema per rendere compatti dati numerici - Google Patents

Sistema per rendere compatti dati numerici

Info

Publication number
IT989317B
IT989317B IT25621/73A IT2562173A IT989317B IT 989317 B IT989317 B IT 989317B IT 25621/73 A IT25621/73 A IT 25621/73A IT 2562173 A IT2562173 A IT 2562173A IT 989317 B IT989317 B IT 989317B
Authority
IT
Italy
Prior art keywords
numerical data
data compact
making numerical
compact
making
Prior art date
Application number
IT25621/73A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT989317B publication Critical patent/IT989317B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
    • 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
    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Communication Control (AREA)
IT25621/73A 1972-08-17 1973-06-20 Sistema per rendere compatti dati numerici IT989317B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28135972A 1972-08-17 1972-08-17

Publications (1)

Publication Number Publication Date
IT989317B true IT989317B (it) 1975-05-20

Family

ID=23076957

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25621/73A IT989317B (it) 1972-08-17 1973-06-20 Sistema per rendere compatti dati numerici

Country Status (7)

Country Link
US (1) US3769453A (it)
JP (1) JPS5246763B2 (it)
CA (1) CA982265A (it)
DE (1) DE2340230A1 (it)
FR (1) FR2196556B1 (it)
GB (1) GB1405036A (it)
IT (1) IT989317B (it)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927268A (en) * 1971-04-30 1975-12-16 Communications Satellite Corp Speech predictive encoding communication system
JPS5220091B2 (it) * 1972-08-23 1977-06-01
US3937871A (en) * 1973-03-26 1976-02-10 International Publishing Corporation Limited Code communication
JPS5816665B2 (ja) * 1975-10-30 1983-04-01 ケイディディ株式会社 フアクシミリシンゴウノフゴウカホウシキ
JPS5818824B2 (ja) * 1975-11-07 1983-04-14 ケイディディ株式会社 フアクシミリシンゴウノ フゴウカホウシキ
US4199722A (en) * 1976-06-30 1980-04-22 Israel Paz Tri-state delta modulator
US4060834A (en) * 1976-10-21 1977-11-29 Bell Telephone Laboratories, Incorporated Processor for increasing the run-length of digital signals
US4193096A (en) * 1977-04-04 1980-03-11 Xerox Corporation Half tone encoder/decoder
JPS543420A (en) * 1977-06-09 1979-01-11 Nec Corp Application forecast encoder device
CA1175556A (en) * 1981-02-24 1984-10-02 Kazumoto Iinuma System for transmitting a video signal with short runs avoided in a signal encoded from the video signal
US4363036A (en) * 1981-03-16 1982-12-07 Ncr Canada Ltd - Ncr Canada Ltee Method and apparatus for compressing digital data using non-adaptive predictive techniques
JPS58102718A (ja) * 1981-12-14 1983-06-18 石川島建材工業株式会社 プレストレストコンクリ−ト部材の製造方法
US4559563A (en) * 1983-10-11 1985-12-17 Xerox Corporation Adaptive prediction for binary encoded documents containing a mixture of text, line drawings and halftones
US5282256A (en) * 1988-05-13 1994-01-25 Canon Kabushiki Kaisha Binary image data coding method having the function of correcting errors derived from coding
US5095374A (en) * 1989-10-10 1992-03-10 Unisys Corporation Method and apparatus for lossless compression and decompression of image data
GB2243512A (en) * 1990-04-23 1991-10-30 Philips Electronic Associated Bandwidth reduction of picture signals; predictive encoding of edge map signals
US5357250A (en) * 1992-11-20 1994-10-18 International Business Machines Corporation Adaptive computation of symbol probabilities in n-ary strings
KR100564664B1 (ko) * 1997-10-08 2006-03-29 시게이트 테크놀로지 엘엘씨 데이터 저장 장치용 하이브리드 데이터 저장과 재구성시스템 및 방법
US7433519B2 (en) * 2003-04-04 2008-10-07 Avid Technology, Inc. Bitstream format for compressed image data
US7403561B2 (en) * 2003-04-04 2008-07-22 Avid Technology, Inc. Fixed bit rate, intraframe compression and decompression of video
EP2863566B1 (en) 2013-10-18 2020-09-02 Université de Nantes Method and apparatus for reconstructing a data block

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736373A (en) * 1971-12-13 1973-05-29 Bell Telephone Labor Inc Conditional vertical subsampling in a video redundancy reduction system

Also Published As

Publication number Publication date
JPS4947009A (it) 1974-05-07
FR2196556B1 (it) 1976-04-30
DE2340230A1 (de) 1974-02-28
JPS5246763B2 (it) 1977-11-28
GB1405036A (en) 1975-09-03
CA982265A (en) 1976-01-20
US3769453A (en) 1973-10-30
FR2196556A1 (it) 1974-03-15

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