LU39915A1 - - Google Patents

Info

Publication number
LU39915A1
LU39915A1 LU39915DA LU39915A1 LU 39915 A1 LU39915 A1 LU 39915A1 LU 39915D A LU39915D A LU 39915DA LU 39915 A1 LU39915 A1 LU 39915A1
Authority
LU
Luxembourg
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.)
Publication of LU39915A1 publication Critical patent/LU39915A1/xx

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
    • H04N1/56—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
    • H04N1/024—Details of scanning heads ; Means for illuminating the original
    • H04N1/032—Details of scanning heads ; Means for illuminating the original for picture information reproduction
    • H04N1/036—Details of scanning heads ; Means for illuminating the original for picture information reproduction for optical reproduction
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
    • 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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
LU39915D 1960-04-01 LU39915A1 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR823140A FR1300718A (fr) 1960-04-01 1960-04-01 Procédé et appareil pour la reproduction des images à teintes continues

Publications (1)

Publication Number Publication Date
LU39915A1 true LU39915A1 (da)

Family

ID=8728442

Family Applications (1)

Application Number Title Priority Date Filing Date
LU39915D LU39915A1 (da) 1960-04-01

Country Status (6)

Country Link
US (1) US3197558A (da)
BE (1) BE602105A (da)
CH (1) CH391467A (da)
FR (1) FR1300718A (da)
LU (1) LU39915A1 (da)
NL (1) NL263106A (da)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294896A (en) * 1963-07-24 1966-12-27 Bell Telephone Labor Inc Digital encoder for facsimile transmission
US3277335A (en) * 1963-07-31 1966-10-04 Paul M Moser Display system using variable frequency, constant amplitude, constant width pulses applied to a cathode ray tube
US3393269A (en) * 1964-04-22 1968-07-16 Zeuthen & Aagaard As Method and apparatus for producing a laminar printing forme
US3564130A (en) * 1966-03-21 1971-02-16 Rca Corp Electronic photocopy system
GB1204542A (en) * 1967-02-20 1970-09-09 Rca Corp Improved printing process
US3646262A (en) * 1968-03-25 1972-02-29 Printing Dev Inc Electronic reproduction of continuous image with controlled modification of image reproduction
US3580995A (en) * 1968-04-29 1971-05-25 Rca Corp Constant sized halftone dot image generator
US3465199A (en) * 1968-11-26 1969-09-02 Rca Corp Electronic halftone image generator
US3668311A (en) * 1969-11-19 1972-06-06 Du Pont Method and system for simulating halftones
US3819854A (en) * 1970-02-20 1974-06-25 Harris Intertype Corp Composing apparatus
US3742129A (en) * 1971-07-07 1973-06-26 Harris Intertype Corp Apparatus and method for generating halftones for image reproduction
JPS4883723A (da) * 1972-02-08 1973-11-08
US4052739A (en) * 1972-05-19 1977-10-04 Matsushita Electric Industrial Co., Ltd. Electronic engraving system
US4040094A (en) * 1973-02-13 1977-08-02 International Publishing Corporation Ltd. Electronic screening
US4189752A (en) * 1973-11-12 1980-02-19 Printing Developments, Inc. Electronic screening with galvanometer recorders
US3920951A (en) * 1974-06-03 1975-11-18 Gen Electric Laser etching apparatus for forming photographic images on metallic surfaces
US4106061A (en) * 1977-03-03 1978-08-08 The Mead Corporation Density control for ink jet copier
US4219850A (en) * 1978-02-16 1980-08-26 The Mead Corporation Optical encoder
JPS56153881A (en) * 1980-04-30 1981-11-28 Fuji Photo Film Co Ltd Half tone picture recording device
FR2497043B1 (fr) * 1980-12-19 1985-09-13 Cit Alcatel Dispositif d'impression d'une image
DE3317579A1 (de) * 1982-05-14 1983-11-17 Canon K.K., Tokyo Verfahren und einrichtung zur bilderzeugung
DE3326330C2 (de) * 1982-07-23 1994-06-09 Canon Kk Verfahren zur Erzeugung eines Graustufenbildes
DE3326557A1 (de) * 1982-07-23 1984-01-26 Canon K.K., Tokyo Verfahren und einrichtung zur bilderzeugung
JPS5941970A (ja) * 1982-09-01 1984-03-08 Canon Inc 画像形成方法及び装置
JPS60152172A (ja) * 1984-01-19 1985-08-10 Canon Inc カラ−画像形成装置
JPS6125365A (ja) * 1984-07-13 1986-02-04 Canon Inc 中間調画像形成方法
US4686538A (en) * 1984-10-31 1987-08-11 Canon Kabushiki Kaisha Tone recording method
FR2587572B1 (fr) * 1985-03-20 1994-02-18 Canon Kk Appareil et procede de traitement d'images
US4800442A (en) * 1985-08-15 1989-01-24 Canon Kabushiki Kaisha Apparatus for generating an image from a digital video signal
US4782398A (en) * 1986-02-14 1988-11-01 Canon Kabushiki Kaisha Image processing apparatus
FR2596226B1 (fr) * 1986-03-19 1988-12-02 Vignon Bernard Procede de reproduction d'une image a partir de la numerisation de cette image
ATE58987T1 (de) * 1986-04-15 1990-12-15 Maurer Electronics Gmbh Bildwiedergabesystem zur erzeugung eines digitalen bildes.
US4758886A (en) * 1986-07-24 1988-07-19 Minnesota Mining And Manufacturing Company Optimal color half-tone patterns for raster-scan images
US4680645A (en) * 1986-08-25 1987-07-14 Hewlett-Packard Company Method for rendering gray scale images with variable dot sizes
USH996H (en) 1987-01-20 1991-11-05 Recognition Equipment Incorporated High resolution page image display system
JPH01264076A (ja) * 1988-04-14 1989-10-20 Dainippon Screen Mfg Co Ltd 分割露光化網点画像記録装置
US4969052A (en) * 1988-05-11 1990-11-06 Canon Kabushiki Kaisha Image processing method and apparatus
NL8902654A (nl) * 1988-11-24 1990-06-18 Oce Nederland Bv Werkwijze en inrichting voor het verwerken en weergeven van beeldinformatie.
JP2941355B2 (ja) * 1990-05-18 1999-08-25 株式会社日立製作所 印刷装置及び該印刷装置を用いた情報処理装置
EP0487084B1 (en) * 1990-11-22 2002-01-30 Canon Kabushiki Kaisha Image forming method and apparatus
US5299020A (en) * 1991-03-08 1994-03-29 Scitex Corporation Ltd. Method and apparatus for generating a screened reproduction of an image using stored dot portions
JPH0698126A (ja) * 1992-09-10 1994-04-08 Toshiba Corp ファクシミリ装置
US5625397A (en) * 1994-11-23 1997-04-29 Iris Graphics, Inc. Dot on dot ink jet printing using inks of differing densities
TW305951B (da) 1995-02-27 1997-05-21 Toray Industries
EP0734151B1 (en) * 1995-03-22 2000-06-14 Agfa-Gevaert N.V. Size modulated stochastic screening
EP0734147B1 (en) * 1995-03-22 2000-06-14 Agfa-Gevaert N.V. Intensity modulated stochastic screening for preparing a lithographic printing plate
EP0910206B1 (en) * 1995-04-28 2001-10-10 Agfa-Gevaert N.V. Halftone screen and method for making same
CN1062079C (zh) * 1995-06-21 2001-02-14 时代集团公司 调幅调频挂网方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1683894A (en) * 1924-08-22 1928-09-11 Western Electric Co Reproducing pictures transmitted electrically
US2041882A (en) * 1931-03-05 1936-05-26 Coal Products Company Of Delaw Retort construction
US2092765A (en) * 1932-12-19 1937-09-14 William A Hughes Electric machine
US2294643A (en) * 1940-07-05 1942-09-01 Interchenical Corp Method and apparatus for reproducing pictures
US2294644A (en) * 1940-07-05 1942-09-01 Interchem Corp Contrast images for making printing plates
US2818465A (en) * 1954-06-15 1957-12-31 Time Inc Half-tone dot facsimile system
DE1039842B (de) * 1957-08-14 1958-09-25 Rudol Hell Dr Ing Verfahren zur kuenstlichen Kontraststeigerung an Tonwertspruengen und Konturen in mittels elektronischer Klischier-maschinen herzustellenden Klischees

Also Published As

Publication number Publication date
CH391467A (fr) 1965-04-30
US3197558A (en) 1965-07-27
FR1300718A (fr) 1962-08-10
BE602105A (fr) 1961-10-02
NL263106A (da)

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