USB239289I5 - - Google Patents

Info

Publication number
USB239289I5
USB239289I5 US23928972A USB239289I5 US B239289 I5 USB239289 I5 US B239289I5 US 23928972 A US23928972 A US 23928972A US B239289 I5 USB239289 I5 US B239289I5
Authority
US
United States
Prior art keywords
color
correction
attained
carriers
fine
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.)
Pending
Application number
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 filed Critical
Publication of USB239289I5 publication Critical patent/USB239289I5/en
Application granted granted Critical
Publication of US3922711A publication Critical patent/US3922711A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N1/46—Colour picture communication systems
    • H04N1/48—Picture signal generators
    • H04N1/486—Picture signal generators with separate detectors, each detector being used for one specific colour component
    • H04N1/488—Picture signal generators with separate detectors, each detector being used for one specific colour component using beam-splitters
    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/64—Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor
    • H04N1/648—Transmitting or storing the primary (additive or subtractive) colour signals; Compression thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Color Television Image Signal Generators (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

In a color facsimile system, a color signal processing system wherein carriers from a common carrier generator are modulated respectively with color signals corresponding to three color components of the original picture and then color correction is electrically effected, thus fine and stable color correction being attained.
US239289A 1968-01-06 1972-03-29 Color signal correction in a color facsimile Expired - Lifetime US3922711A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP102568 1968-01-06
JP2596168 1968-04-18
JP2596068 1968-04-18
JP2595968 1968-04-18
JP2898368 1968-04-26

Publications (2)

Publication Number Publication Date
USB239289I5 true USB239289I5 (en) 1975-01-28
US3922711A US3922711A (en) 1975-11-25

Family

ID=27518044

Family Applications (1)

Application Number Title Priority Date Filing Date
US239289A Expired - Lifetime US3922711A (en) 1968-01-06 1972-03-29 Color signal correction in a color facsimile

Country Status (5)

Country Link
US (1) US3922711A (en)
DE (1) DE1900266B2 (en)
FR (1) FR1601369A (en)
GB (1) GB1255489A (en)
NL (1) NL6900149A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2526409C3 (en) * 1975-06-13 1979-08-09 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Method for calibrating a recording unit producing a photomechanical printing form
US4216495A (en) * 1978-03-10 1980-08-05 Eltra Corporation Electro-optical scanning
US4318122A (en) * 1980-10-06 1982-03-02 International Business Machines Corporation Electronic color separation
DE3313392A1 (en) * 1982-04-14 1983-10-20 Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa METHOD AND DEVICE FOR DIGITAL COLOR CORRECTION
US4680625A (en) * 1984-07-18 1987-07-14 Konishiroku Photo Industry Co., Ltd. Method and apparatus for multicolor image forming
DE3539540A1 (en) * 1984-11-08 1986-05-22 Canon K.K., Tokio/Tokyo Colour image treatment method
JP3368890B2 (en) * 2000-02-03 2003-01-20 日亜化学工業株式会社 Image display device and control method thereof
US6806856B2 (en) * 2001-08-09 2004-10-19 Microsoft Corporation Reflective displays with color filter cross-talk compensation
JP2004264749A (en) * 2003-03-04 2004-09-24 Canon Inc Image forming apparatus, image processing apparatus, and control method thereof
US7965322B2 (en) * 2008-04-25 2011-06-21 Nokia Corporation Color correction on an image

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2316581A (en) * 1941-08-05 1943-04-13 Interchem Corp Method and apparatus for making separation images for four-color reproduction
US2434561A (en) * 1944-07-08 1948-01-13 Interchem Corp Color facsimile
US2727940A (en) * 1951-06-12 1955-12-20 Time Inc Electronic masking method and apparatus
US2863938A (en) * 1954-06-16 1958-12-09 Technicolor Motion Picture Printing timer
US2879326A (en) * 1952-08-27 1959-03-24 Eastman Kodak Co Black printer for electro-optical reproduction
US2932691A (en) * 1955-06-14 1960-04-12 Time Inc Circuit for altering intelligence to carrier signal ratio
US2939908A (en) * 1956-07-20 1960-06-07 Rca Corp Color correction system
US2947805A (en) * 1955-06-15 1960-08-02 Time Inc Four color reproducing method and apparatus
US2968214A (en) * 1954-11-18 1961-01-17 Hunter Penrose Ltd Modification of the light response from a coloured original
US2981792A (en) * 1957-10-31 1961-04-25 Fairchild Camera Instr Co Color correction computer for engraving machines
US3098895A (en) * 1958-12-02 1963-07-23 Hazeltine Research Inc Electronic previewer for televised color pictures
US3557303A (en) * 1967-12-22 1971-01-19 Printing Dev Inc Cathode ray tube scanning systems with spot and area scanning

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2316581A (en) * 1941-08-05 1943-04-13 Interchem Corp Method and apparatus for making separation images for four-color reproduction
US2434561A (en) * 1944-07-08 1948-01-13 Interchem Corp Color facsimile
US2727940A (en) * 1951-06-12 1955-12-20 Time Inc Electronic masking method and apparatus
US2879326A (en) * 1952-08-27 1959-03-24 Eastman Kodak Co Black printer for electro-optical reproduction
US2863938A (en) * 1954-06-16 1958-12-09 Technicolor Motion Picture Printing timer
US2968214A (en) * 1954-11-18 1961-01-17 Hunter Penrose Ltd Modification of the light response from a coloured original
US2932691A (en) * 1955-06-14 1960-04-12 Time Inc Circuit for altering intelligence to carrier signal ratio
US2947805A (en) * 1955-06-15 1960-08-02 Time Inc Four color reproducing method and apparatus
US2939908A (en) * 1956-07-20 1960-06-07 Rca Corp Color correction system
US2981792A (en) * 1957-10-31 1961-04-25 Fairchild Camera Instr Co Color correction computer for engraving machines
US3098895A (en) * 1958-12-02 1963-07-23 Hazeltine Research Inc Electronic previewer for televised color pictures
US3557303A (en) * 1967-12-22 1971-01-19 Printing Dev Inc Cathode ray tube scanning systems with spot and area scanning

Also Published As

Publication number Publication date
US3922711A (en) 1975-11-25
GB1255489A (en) 1971-12-01
NL6900149A (en) 1969-07-08
DE1900266B2 (en) 1971-12-30
FR1601369A (en) 1970-08-17
DE1900266A1 (en) 1969-07-24

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