NL192421B - Codeerwerkwijze voor facsimilesignalen. - Google Patents

Codeerwerkwijze voor facsimilesignalen.

Info

Publication number
NL192421B
NL192421B NL7908320A NL7908320A NL192421B NL 192421 B NL192421 B NL 192421B NL 7908320 A NL7908320 A NL 7908320A NL 7908320 A NL7908320 A NL 7908320A NL 192421 B NL192421 B NL 192421B
Authority
NL
Netherlands
Prior art keywords
coding method
facsimile signals
facsimile
signals
coding
Prior art date
Application number
NL7908320A
Other languages
English (en)
Other versions
NL192421C (nl
NL7908320A (nl
Original Assignee
Kokusai Denshin Denwa Co Ltd
Nippon Telegraph & Telephone
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
Priority claimed from JP53144594A external-priority patent/JPS5927505B2/ja
Priority claimed from JP603079A external-priority patent/JPS5599880A/ja
Application filed by Kokusai Denshin Denwa Co Ltd, Nippon Telegraph & Telephone filed Critical Kokusai Denshin Denwa Co Ltd
Publication of NL7908320A publication Critical patent/NL7908320A/nl
Publication of NL192421B publication Critical patent/NL192421B/nl
Application granted granted Critical
Publication of NL192421C publication Critical patent/NL192421C/nl

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
    • H04N1/4175—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding involving the encoding of tone transitions with respect to tone transitions in a reference line

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
NL7908320A 1978-11-22 1979-11-14 Codeerwerkwijze voor facsimilesignalen. NL192421C (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP53144594A JPS5927505B2 (ja) 1978-11-22 1978-11-22 二次元逐次符号化方式
JP14459478 1978-11-22
JP603079A JPS5599880A (en) 1979-01-24 1979-01-24 Coding system suitable for one and two dimension
JP603079 1979-01-24

Publications (3)

Publication Number Publication Date
NL7908320A NL7908320A (nl) 1980-05-27
NL192421B true NL192421B (nl) 1997-03-03
NL192421C NL192421C (nl) 1997-07-04

Family

ID=26340105

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7908320A NL192421C (nl) 1978-11-22 1979-11-14 Codeerwerkwijze voor facsimilesignalen.

Country Status (7)

Country Link
US (1) US4258392A (nl)
AU (1) AU518355B2 (nl)
CA (1) CA1128646A (nl)
DE (1) DE2946982C2 (nl)
FR (1) FR2442558A1 (nl)
GB (1) GB2038592B (nl)
NL (1) NL192421C (nl)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1128645A (en) * 1978-07-31 1982-07-27 Yasuhiro Yamazaki Transmission method and system for facsimile signal
US4355306A (en) * 1981-01-30 1982-10-19 International Business Machines Corporation Dynamic stack data compression and decompression system
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
US4710813A (en) * 1981-06-04 1987-12-01 Compression Labs, Inc. Low bandwidth video teleconferencing system and method
US4379949A (en) * 1981-08-10 1983-04-12 Motorola, Inc. Method of and means for variable-rate coding of LPC parameters
US4511213A (en) * 1981-12-24 1985-04-16 Kokusai Denshin Denwa Kabushiki Kaisha Coding method for multilevel-gradated picture signal
US4486784A (en) * 1982-12-27 1984-12-04 International Business Machines Corporation Image compression systems
JPS59126368A (ja) * 1983-01-10 1984-07-20 Hitachi Ltd 符号化復号化装置
JPS59231976A (ja) * 1983-06-15 1984-12-26 Ricoh Co Ltd デ−タ圧縮方式
US4562484A (en) * 1983-08-19 1985-12-31 Advanced Micro Devices, Inc. Method and device for decoding two-dimensional facsimile signals
US4558371A (en) * 1983-08-19 1985-12-10 Advanced Micro Devices, Inc. Method and device for two-dimensional facsimile coding
FR2580095A1 (en) * 1985-04-05 1986-10-10 Uap Incendie Accidents Method and device for acquisition, local archiving or long range transmission, with possible remote archiving, and the subsequent reproduction, from the local archiving or the remote archiving, of documents constituted by texts and/or images
EP0302432A3 (en) * 1987-08-04 1991-02-27 Brooktree Corporation Document decompressing system
GB2208059B (en) * 1987-08-11 1991-09-25 Apple Computer Video compression algorithm
JP2510353B2 (ja) * 1990-11-07 1996-06-26 村田機械株式会社 画像デ―タのスム―ジング処理方法
DE4243984A1 (en) * 1992-02-24 1993-08-26 Dirr Josef Telefax or colour television image coding system
US5576835A (en) * 1992-02-24 1996-11-19 Dirr; Josef Method for run-length coding for shortening transmission time
KR970003425B1 (ko) * 1993-11-19 1997-03-18 엘지전자 주식회사 팩시밀리의 데이타 압축 전송방법
US5689255A (en) * 1995-08-22 1997-11-18 Hewlett-Packard Company Method and apparatus for compressing and decompressing image data

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253378C3 (de) * 1972-10-31 1981-02-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren und Anordnung zur Codierung von Faksimilesignalen
US3830964A (en) * 1973-01-03 1974-08-20 Eg & G Inc Apparatus and method for transmitting a bandwidth compressed digital signal representation of a visible image
US3927251A (en) * 1973-05-18 1975-12-16 Rca Corp Method and apparatus for the detection and control of errors in two-dimensionally compressed image data
JPS587109B2 (ja) * 1974-09-09 1983-02-08 ケイディディ株式会社 フアクシミリシンゴウ ノ ジヨウホウヘンカガソアドレスフゴウカホウシキ
JPS51132015A (en) * 1974-12-23 1976-11-16 Fujitsu Ltd Picture signal encoding transmission system
JPS5255313A (en) * 1975-10-30 1977-05-06 Kokusai Denshin Denwa Co Ltd Facsimile signal coding system
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
JPS5290216A (en) * 1976-01-24 1977-07-29 Mita Industrial Co Ltd Picture signal band compressing method
JPS6043703B2 (ja) * 1976-02-27 1985-09-30 富士ゼロックス株式会社 ２値信号フアクシミリデ−タ圧縮方式
JPS5816667B2 (ja) * 1976-07-21 1983-04-01 ケイディディ株式会社 フアクシミリ信号のインタ−ライン符号化方式

Also Published As

Publication number Publication date
AU518355B2 (en) 1981-09-24
FR2442558B1 (nl) 1985-04-12
AU5290879A (en) 1980-06-26
NL192421C (nl) 1997-07-04
DE2946982C2 (de) 1985-10-17
CA1128646A (en) 1982-07-27
DE2946982A1 (de) 1980-05-29
FR2442558A1 (fr) 1980-06-20
GB2038592B (en) 1982-12-08
US4258392A (en) 1981-03-24
NL7908320A (nl) 1980-05-27
GB2038592A (en) 1980-07-23

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA EN NIPPON

BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent

Free format text: 19991114