GB1292682A - A coded communication system - Google Patents

A coded communication system

Info

Publication number
GB1292682A
GB1292682A GB00743/70A GB1074370A GB1292682A GB 1292682 A GB1292682 A GB 1292682A GB 00743/70 A GB00743/70 A GB 00743/70A GB 1074370 A GB1074370 A GB 1074370A GB 1292682 A GB1292682 A GB 1292682A
Authority
GB
United Kingdom
Prior art keywords
binary
line
edge
length
run
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
GB00743/70A
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.)
Electronic Image Systems Corp
Original Assignee
Electronic Image Systems Corp
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 Electronic Image Systems Corp filed Critical Electronic Image Systems Corp
Publication of GB1292682A publication Critical patent/GB1292682A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimiles In General (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB00743/70A 1969-03-13 1970-03-05 A coded communication system Expired GB1292682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80681069A 1969-03-13 1969-03-13

Publications (1)

Publication Number Publication Date
GB1292682A true GB1292682A (en) 1972-10-11

Family

ID=25194896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00743/70A Expired GB1292682A (en) 1969-03-13 1970-03-05 A coded communication system

Country Status (7)

Country Link
US (1) US3646257A (enExample)
BE (1) BE747350A (enExample)
CA (1) CA922635A (enExample)
DE (1) DE2011801A1 (enExample)
FR (1) FR2034901A7 (enExample)
GB (1) GB1292682A (enExample)
NL (1) NL7003185A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4843817A (enExample) * 1971-10-07 1973-06-25
US3781847A (en) * 1971-11-12 1973-12-25 Den Bosch F Van Selective information retrieval systems
US4034406A (en) * 1971-11-29 1977-07-05 Matsushita Electric Industrial Co., Ltd. Facsimile signal transmission system
US3751582A (en) * 1971-12-08 1973-08-07 Addressograph Multigraph Stored program facsimile control system
JPS539888B2 (enExample) * 1973-11-01 1978-04-10
US3935379A (en) * 1974-05-09 1976-01-27 General Dynamics Corporation Method of and system for adaptive run length encoding of image representing digital information
DE2516332C2 (de) * 1975-04-15 1987-01-22 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Codierung von elektrischen Signalen, die bei der Abtastung eines graphischen Musters mit aus Text und Bild gemischtem Inhalt gewonnen werden
JPS5819185B2 (ja) * 1976-10-29 1983-04-16 沖電気工業株式会社 情報圧縮フアクシミリ装置
JPS5564445A (en) * 1978-11-08 1980-05-15 Nec Corp Code converter circuit
FR2504456B1 (fr) * 1981-04-27 1991-07-19 Canon Kk Appareil d'impression pour la copie d'originaux
DE3483521D1 (de) * 1984-01-16 1990-12-06 Ibm Verfahren zum kodieren und dekodieren eines digitalen bildes.
US4725815A (en) * 1984-01-16 1988-02-16 International Business Machines Corporation Method for encoding and decoding a digital image
US4899394A (en) * 1986-05-09 1990-02-06 Prodigy Systems Corporation Apparatus and method for image compression

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978535A (en) * 1960-01-28 1961-04-04 Bell Telephone Labor Inc Optimal run length coding of image signals
US3204026A (en) * 1962-04-30 1965-08-31 William J Casey Narrow bandwidth scanning system
US3189873A (en) * 1962-08-09 1965-06-15 Control Data Corp Scanning pattern normalizer
US3347981A (en) * 1964-03-18 1967-10-17 Polaroid Corp Method for transmitting digital data in connection with document reproduction system
US3560639A (en) * 1966-10-03 1971-02-02 Xerox Corp Cascade run length encoding technique
US3459888A (en) * 1968-01-02 1969-08-05 Xerox Corp Selective photocopier

Also Published As

Publication number Publication date
FR2034901A7 (enExample) 1970-12-18
NL7003185A (enExample) 1970-09-15
US3646257A (en) 1972-02-29
CA922635A (en) 1973-03-13
BE747350A (fr) 1970-08-17
DE2011801A1 (de) 1970-10-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee