GB1373940A - Data transmission systems - Google Patents

Data transmission systems

Info

Publication number
GB1373940A
GB1373940A GB6065671A GB6065671A GB1373940A GB 1373940 A GB1373940 A GB 1373940A GB 6065671 A GB6065671 A GB 6065671A GB 6065671 A GB6065671 A GB 6065671A GB 1373940 A GB1373940 A GB 1373940A
Authority
GB
United Kingdom
Prior art keywords
line
signal
signals
enabled
new
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
GB6065671A
Other languages
English (en)
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1373940A publication Critical patent/GB1373940A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Communication Control (AREA)
  • Facsimile Image Signal Circuits (AREA)
GB6065671A 1970-12-31 1971-12-30 Data transmission systems Expired GB1373940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45123406A JPS5015093B1 (de) 1970-12-31 1970-12-31

Publications (1)

Publication Number Publication Date
GB1373940A true GB1373940A (en) 1974-11-13

Family

ID=14859754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6065671A Expired GB1373940A (en) 1970-12-31 1971-12-30 Data transmission systems

Country Status (4)

Country Link
JP (1) JPS5015093B1 (de)
DE (1) DE2165766C3 (de)
FR (1) FR2120171B1 (de)
GB (1) GB1373940A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3016738A1 (de) * 1980-04-30 1981-11-05 Siemens AG, 1000 Berlin und 8000 München Verfahren zur uebertragung eines bitmusterfeldes in einen speicher und schaltungsanordnung zur ausuebung des verfahrens
US4323916A (en) 1980-02-07 1982-04-06 Rca Corporation Data rate reduction for digital video signals by subsampling and adaptive reconstruction

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833900A (en) * 1972-08-18 1974-09-03 Ibm Image compaction system
FR2450016A1 (fr) * 1979-02-23 1980-09-19 Arnaud Jean Procede et appareil de compression de donnees, notamment de signaux de television
FR2516676B1 (fr) * 1981-11-17 1986-08-29 Thomson Csf Analyseur ligne par ligne d'un document, equipe d'un dispositif de controle de la position du document
DE19540424C2 (de) * 1995-10-30 2003-07-03 Dinu Scheppelmann Verfahren zum Übertragen eines digitalen Bildes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347981A (en) * 1964-03-18 1967-10-17 Polaroid Corp Method for transmitting digital data in connection with document reproduction system
US3571505A (en) * 1968-08-02 1971-03-16 Bell Telephone Labor Inc Redundancy reduction system for video signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4323916A (en) 1980-02-07 1982-04-06 Rca Corporation Data rate reduction for digital video signals by subsampling and adaptive reconstruction
DE3016738A1 (de) * 1980-04-30 1981-11-05 Siemens AG, 1000 Berlin und 8000 München Verfahren zur uebertragung eines bitmusterfeldes in einen speicher und schaltungsanordnung zur ausuebung des verfahrens

Also Published As

Publication number Publication date
FR2120171A1 (de) 1972-08-11
DE2165766B2 (de) 1973-10-18
DE2165766A1 (de) 1972-08-03
JPS5015093B1 (de) 1975-06-02
DE2165766C3 (de) 1974-05-09
FR2120171B1 (de) 1976-12-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee