IT1067067B - Trasmettitore facsimile presentante una risposta migliorata - Google Patents

Trasmettitore facsimile presentante una risposta migliorata

Info

Publication number
IT1067067B
IT1067067B IT25097/76A IT2509776A IT1067067B IT 1067067 B IT1067067 B IT 1067067B IT 25097/76 A IT25097/76 A IT 25097/76A IT 2509776 A IT2509776 A IT 2509776A IT 1067067 B IT1067067 B IT 1067067B
Authority
IT
Italy
Prior art keywords
improved response
facsimile transmitter
presenting
transmitter presenting
facsimile
Prior art date
Application number
IT25097/76A
Other languages
English (en)
Original Assignee
Exxon Research 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 Engineering Co filed Critical Exxon Research Engineering Co
Application granted granted Critical
Publication of IT1067067B publication Critical patent/IT1067067B/it

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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • H04N1/029—Heads optically focused on only one picture element at a time
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4097—Removing errors due external factors, e.g. dust, scratches

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)
IT25097/76A 1975-08-21 1976-07-07 Trasmettitore facsimile presentante una risposta migliorata IT1067067B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/606,507 US4015077A (en) 1975-08-21 1975-08-21 Facsimile transmitter having improved response

Publications (1)

Publication Number Publication Date
IT1067067B true IT1067067B (it) 1985-03-12

Family

ID=24428255

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25097/76A IT1067067B (it) 1975-08-21 1976-07-07 Trasmettitore facsimile presentante una risposta migliorata

Country Status (8)

Country Link
US (1) US4015077A (it)
JP (1) JPS5225518A (it)
CA (1) CA1099391A (it)
DE (1) DE2637673A1 (it)
FR (1) FR2321806A1 (it)
GB (2) GB1546215A (it)
IT (1) IT1067067B (it)
NL (1) NL7607580A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4413276A (en) * 1981-11-16 1983-11-01 Hertz Carl H Optical scanner for color facsimile
US7271295B1 (en) 2006-10-13 2007-09-18 Lyondell Chemical Technology, L.P. Hydroformylation process

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE476264A (it) * 1942-10-03
US2506672A (en) * 1945-10-31 1950-05-09 Rca Corp Signal transmission system
FR1508383A (fr) * 1966-11-25 1968-01-05 Alcatel Sa Dispositif d'analyse optique d'une image
US3471701A (en) * 1967-07-19 1969-10-07 Magnavox Co Radiation sensitive transducing system
FR1601413A (it) * 1968-06-26 1970-08-24
GB1290326A (it) * 1968-10-18 1972-09-27
US3619493A (en) * 1968-12-20 1971-11-09 Graphic Sciences Inc Automatic gain control for graphic data transmission system
US3600506A (en) * 1969-03-03 1971-08-17 Magnavox Co Background sensing and black level setting circuit
US3761610A (en) * 1971-02-16 1973-09-25 Graphics Sciences Inc High speed fascimile systems
GB1422341A (it) * 1972-04-27 1976-01-28
US3845242A (en) * 1972-11-21 1974-10-29 Minnesota Mining & Mfg Video signal processing system for facsimile transmission
US3868477A (en) * 1973-06-20 1975-02-25 Dacom Inc Facsimile system contrast enhancement
US3911207A (en) * 1973-11-21 1975-10-07 Exxon Research Engineering Co FM demodulator and control circuitry for a facsimile system

Also Published As

Publication number Publication date
DE2637673A1 (de) 1977-03-03
US4015077A (en) 1977-03-29
GB1546213A (en) 1979-05-23
NL7607580A (nl) 1977-02-23
CA1099391A (en) 1981-04-14
FR2321806A1 (fr) 1977-03-18
JPS5225518A (en) 1977-02-25
GB1546215A (en) 1979-05-23

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