GB1440378A - Coding or facsimile signals - Google Patents

Coding or facsimile signals

Info

Publication number
GB1440378A
GB1440378A GB4106073A GB4106073A GB1440378A GB 1440378 A GB1440378 A GB 1440378A GB 4106073 A GB4106073 A GB 4106073A GB 4106073 A GB4106073 A GB 4106073A GB 1440378 A GB1440378 A GB 1440378A
Authority
GB
United Kingdom
Prior art keywords
coding
facsimile signals
facsimile
signals
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
GB4106073A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1440378A publication Critical patent/GB1440378A/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)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
GB4106073A 1972-10-31 1973-08-31 Coding or facsimile signals Expired GB1440378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722253378 DE2253378C3 (en) 1972-10-31 1972-10-31 Method and arrangement for coding facsimile signals

Publications (1)

Publication Number Publication Date
GB1440378A true GB1440378A (en) 1976-06-23

Family

ID=5860528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4106073A Expired GB1440378A (en) 1972-10-31 1973-08-31 Coding or facsimile signals

Country Status (2)

Country Link
DE (1) DE2253378C3 (en)
GB (1) GB1440378A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257069A (en) * 1977-06-29 1981-03-17 Ricoh Company, Ltd. Data compression apparatus
US4475127A (en) * 1981-02-24 1984-10-02 Nippon Electric Co., Ltd. System for transmitting a video signal with short runs avoided in a signal encoded from the video signal
US5177622A (en) * 1989-07-27 1993-01-05 Fujitsu Limited Method and apparatus for detecting run length of two successive pixels and subjecting run length to universal coding

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826713B2 (en) * 1976-06-28 1983-06-04 日本電信電話株式会社 Sequential boundary differential coding transmission method for binary signals
US4145686A (en) * 1977-06-27 1979-03-20 Recognition Equipment Incorporated Data compressor
US4200369A (en) * 1978-05-23 1980-04-29 Information National, Inc. Method and apparatus for compacting and decompacting character data in accordance with a variety of methods
CA1128645A (en) * 1978-07-31 1982-07-27 Yasuhiro Yamazaki Transmission method and system for facsimile signal
CA1128646A (en) * 1978-11-22 1982-07-27 Yasuhiro Yamazaki Coding method for facsimile signal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257069A (en) * 1977-06-29 1981-03-17 Ricoh Company, Ltd. Data compression apparatus
US4475127A (en) * 1981-02-24 1984-10-02 Nippon Electric Co., Ltd. System for transmitting a video signal with short runs avoided in a signal encoded from the video signal
US5177622A (en) * 1989-07-27 1993-01-05 Fujitsu Limited Method and apparatus for detecting run length of two successive pixels and subjecting run length to universal coding

Also Published As

Publication number Publication date
DE2253378B2 (en) 1980-06-12
DE2253378A1 (en) 1974-05-09
DE2253378C3 (en) 1981-02-19

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Legal Events

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