DE2502921A1 - Einrichtung und verfahren zum senden und empfangen von faksimile- signalen - Google Patents

Einrichtung und verfahren zum senden und empfangen von faksimile- signalen

Info

Publication number
DE2502921A1
DE2502921A1 DE19752502921 DE2502921A DE2502921A1 DE 2502921 A1 DE2502921 A1 DE 2502921A1 DE 19752502921 DE19752502921 DE 19752502921 DE 2502921 A DE2502921 A DE 2502921A DE 2502921 A1 DE2502921 A1 DE 2502921A1
Authority
DE
Germany
Prior art keywords
document
dark
time frame
scanning speed
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.)
Withdrawn
Application number
DE19752502921
Other languages
German (de)
English (en)
Inventor
Jun Herbert P Ford
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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 Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of DE2502921A1 publication Critical patent/DE2502921A1/de
Withdrawn legal-status Critical Current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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/17—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa the scanning speed being dependent on content of picture

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
DE19752502921 1974-03-08 1975-01-24 Einrichtung und verfahren zum senden und empfangen von faksimile- signalen Withdrawn DE2502921A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/449,514 US3955045A (en) 1974-03-08 1974-03-08 Method and apparatus for time compression of facsimile transmissions

Publications (1)

Publication Number Publication Date
DE2502921A1 true DE2502921A1 (de) 1975-09-11

Family

ID=23784439

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752502921 Withdrawn DE2502921A1 (de) 1974-03-08 1975-01-24 Einrichtung und verfahren zum senden und empfangen von faksimile- signalen

Country Status (9)

Country Link
US (1) US3955045A (enExample)
JP (1) JPS50122817A (enExample)
CA (1) CA1057390A (enExample)
DE (1) DE2502921A1 (enExample)
FR (1) FR2263649B1 (enExample)
GB (1) GB1495299A (enExample)
IT (1) IT1028407B (enExample)
MX (1) MX144382A (enExample)
NL (1) NL7501598A (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5295113A (en) * 1976-02-05 1977-08-10 Fujitsu Ltd Band compression transmission system
US4095248A (en) * 1976-06-16 1978-06-13 Faxon Communications Corporation Redundancy reduction system for facsimile transceivers
US4228466A (en) * 1978-03-13 1980-10-14 Exxon Research & Engineering Co. Transmission mode signaling between a facsimile transmitter and a facsimile receiver
JPS55149569A (en) * 1979-05-11 1980-11-20 Jujo Eng Kk Control signal transmission method in facsimile
JPS5644259A (en) * 1979-09-20 1981-04-23 Canon Inc Copying and recording device
JPS5644260A (en) * 1979-09-20 1981-04-23 Canon Inc Copying and recording device
US4442460A (en) * 1980-12-10 1984-04-10 Fuji Xerox Co., Ltd. Copying machine
JPS5797766A (en) * 1980-12-10 1982-06-17 Fuji Xerox Co Ltd Copying machine
JPS5797770A (en) * 1980-12-10 1982-06-17 Fuji Xerox Co Ltd Copying machine
US4551766A (en) * 1982-03-08 1985-11-05 Halliburton Company Optical reader
US4495639A (en) * 1982-03-08 1985-01-22 Halliburton Company Electronic data compressor
US4531189A (en) * 1982-03-08 1985-07-23 Halliburton Company Data conversion, communication and analysis system
US4413287A (en) * 1982-04-14 1983-11-01 Xerox Corporation White line skipping
GB2148653B (en) * 1983-10-22 1987-01-28 Standard Telephones Cables Ltd Picture phone apparatus
US4775859A (en) * 1985-10-18 1988-10-04 Hilliard-Lyons Patent Management, Inc. Programmable interlace with skip and contrast enhancement in long persistence display systems
US5021877A (en) * 1987-10-27 1991-06-04 Brother Kogyo Kabushiki Kaisha Optical image reading apparatus capable of reading multi-colored original
US5374947A (en) * 1992-05-18 1994-12-20 Fuji Xerox Co., Ltd. Laser beam printer capable of changing scanning density and paper transport speed
CZ286929B6 (en) * 1993-08-05 2000-08-16 Motorola Inc Telefax communication process within a communication system with selective calling and communication system for making the same
RU2213360C1 (ru) * 2002-02-20 2003-09-27 Институт геофизики СО РАН Способ оценки типа жидкости, насыщающей горные породы
CA2996231C (en) * 2017-02-24 2021-07-06 Institut National D'optique Scan-based imaging with variable scan speed using predictions of region-of-interest positions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670099A (en) * 1968-03-18 1972-06-13 Itek Corp Facsimile system utilizing pre-scan detection of indicia

Also Published As

Publication number Publication date
FR2263649A1 (enExample) 1975-10-03
JPS50122817A (enExample) 1975-09-26
US3955045A (en) 1976-05-04
CA1057390A (en) 1979-06-26
FR2263649B1 (enExample) 1980-11-14
IT1028407B (it) 1979-01-30
NL7501598A (nl) 1975-09-10
MX144382A (es) 1981-10-05
GB1495299A (en) 1977-12-14

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination