IT1119417B - Dispostivo di conversione binaria particolarmente per emettitori e ricevitori di informazioni d'immagine a riduzione di ridondanza - Google Patents

Dispostivo di conversione binaria particolarmente per emettitori e ricevitori di informazioni d'immagine a riduzione di ridondanza

Info

Publication number
IT1119417B
IT1119417B IT69181/79A IT6918179A IT1119417B IT 1119417 B IT1119417 B IT 1119417B IT 69181/79 A IT69181/79 A IT 69181/79A IT 6918179 A IT6918179 A IT 6918179A IT 1119417 B IT1119417 B IT 1119417B
Authority
IT
Italy
Prior art keywords
reduction
issuers
receivers
conversion device
redundant
Prior art date
Application number
IT69181/79A
Other languages
English (en)
Other versions
IT7969181A0 (it
Inventor
Evelyne Roux
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of IT7969181A0 publication Critical patent/IT7969181A0/it
Application granted granted Critical
Publication of IT1119417B publication Critical patent/IT1119417B/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
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
IT69181/79A 1978-11-09 1979-11-08 Dispostivo di conversione binaria particolarmente per emettitori e ricevitori di informazioni d'immagine a riduzione di ridondanza IT1119417B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7831684A FR2441297A1 (fr) 1978-11-09 1978-11-09 Dispositif de conversion binaire et applications aux emetteurs et recepteurs d'informations d'image a reduction de redondance

Publications (2)

Publication Number Publication Date
IT7969181A0 IT7969181A0 (it) 1979-11-08
IT1119417B true IT1119417B (it) 1986-03-10

Family

ID=9214656

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69181/79A IT1119417B (it) 1978-11-09 1979-11-08 Dispostivo di conversione binaria particolarmente per emettitori e ricevitori di informazioni d'immagine a riduzione di ridondanza

Country Status (11)

Country Link
US (1) US4311989A (it)
JP (1) JPS5571341A (it)
BE (1) BE879653A (it)
CA (1) CA1147470A (it)
DE (1) DE2944234A1 (it)
FR (1) FR2441297A1 (it)
GB (1) GB2035759B (it)
IE (1) IE48865B1 (it)
IT (1) IT1119417B (it)
LU (1) LU81845A1 (it)
NL (1) NL7908197A (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129876A (ja) * 1981-12-29 1983-08-03 Fujitsu Ltd フアクシミリ装置
JPS5937773A (ja) * 1982-08-26 1984-03-01 Canon Inc ランレングス符号復号装置
NL8301264A (nl) * 1983-04-11 1984-11-01 Philips Nv Inrichting voor het regelsgewijs comprimeren van binaire data van een beeldveld- en aftastinrichting voor een document voorzien voor zulk comprimeren.
GB2146874A (en) * 1983-08-26 1985-04-24 British Telecomm Decoding of minimum redundancy codes
DE3476618D1 (en) * 1983-12-08 1989-03-09 Crosfield Electronics Ltd Detecting codewords
GB2175769B (en) * 1985-04-27 1989-12-28 Sony Corp Method and apparatus for processing an image signal
US5216423A (en) * 1991-04-09 1993-06-01 University Of Central Florida Method and apparatus for multiple bit encoding and decoding of data through use of tree-based codes
JP3520670B2 (ja) * 1996-06-28 2004-04-19 ソニー株式会社 可変長符号処理装置および画像処理装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016422A (en) * 1957-11-29 1962-01-09 Rca Corp Reversible code converter
US3560639A (en) * 1966-10-03 1971-02-02 Xerox Corp Cascade run length encoding technique
US3748379A (en) * 1970-01-22 1973-07-24 Electronic Image Sys Corp Run length coding technique
JPS5216156A (en) * 1975-07-30 1977-02-07 Hitachi Ltd Code conversion system
JPS5261424A (en) * 1975-11-17 1977-05-20 Olympus Optical Co Ltd Encode system
US4037226A (en) * 1976-01-07 1977-07-19 Ncr Corporation Pulse code modulation compressor
US4092675A (en) * 1976-12-29 1978-05-30 Xerox Corporation Truncated run length encoding with a modular variable length code format
FR2396479A1 (fr) * 1977-06-30 1979-01-26 Cit Alcatel Installation de transmission de fac-simile a reduction de redondance

Also Published As

Publication number Publication date
DE2944234A1 (de) 1980-05-29
LU81845A1 (fr) 1980-06-05
US4311989A (en) 1982-01-19
NL7908197A (nl) 1980-05-13
IE48865B1 (en) 1985-05-29
CA1147470A (fr) 1983-05-31
DE2944234C2 (it) 1989-04-27
FR2441297B1 (it) 1982-05-14
IT7969181A0 (it) 1979-11-08
FR2441297A1 (fr) 1980-06-06
GB2035759B (en) 1982-11-24
JPS5571341A (en) 1980-05-29
BE879653A (fr) 1980-04-28
GB2035759A (en) 1980-06-18
IE792140L (en) 1980-05-09

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