DE3688715D1 - Druckverfahren vom abtastaufzeichnungstyp und dessen verwirklichungsvorrichtung. - Google Patents

Druckverfahren vom abtastaufzeichnungstyp und dessen verwirklichungsvorrichtung.

Info

Publication number
DE3688715D1
DE3688715D1 DE8686104403A DE3688715A DE3688715D1 DE 3688715 D1 DE3688715 D1 DE 3688715D1 DE 8686104403 A DE8686104403 A DE 8686104403A DE 3688715 A DE3688715 A DE 3688715A DE 3688715 D1 DE3688715 D1 DE 3688715D1
Authority
DE
Germany
Prior art keywords
scaning
type
printing method
realization device
realization
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.)
Expired - Lifetime
Application number
DE8686104403A
Other languages
English (en)
Other versions
DE3688715T2 (de
DE3688715T3 (de
DE3688715T4 (de
Inventor
Shin Ya Kobayashi
Masayasu Anzai
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.)
Ricoh Printing Systems Ltd
Original Assignee
Hitachi Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26406114&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3688715(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP60064966A external-priority patent/JPS61225971A/ja
Priority claimed from JP60184274A external-priority patent/JPH0636556B2/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3688715D1 publication Critical patent/DE3688715D1/de
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
    • H04N1/52—Circuits or arrangements for halftone screening
    • 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
    • H04N1/4056—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 the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]
DE8686104403A 1985-03-30 1986-04-01 Druckverfahren vom abtastaufzeichnungstyp und dessen verwirklichungsvorrichtung. Expired - Lifetime DE3688715D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60064966A JPS61225971A (ja) 1985-03-30 1985-03-30 画素記録パルス信号発生方法
JP60184274A JPH0636556B2 (ja) 1985-08-23 1985-08-23 カラ−印刷方法

Publications (1)

Publication Number Publication Date
DE3688715D1 true DE3688715D1 (de) 1993-08-26

Family

ID=26406114

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3688715T Expired - Lifetime DE3688715T3 (de) 1985-03-30 1986-04-01 Druckverfahren vom Abtastaufzeichnungstyp und dessen Verwirklichungsvorrichtung.
DE8686104403A Expired - Lifetime DE3688715D1 (de) 1985-03-30 1986-04-01 Druckverfahren vom abtastaufzeichnungstyp und dessen verwirklichungsvorrichtung.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3688715T Expired - Lifetime DE3688715T3 (de) 1985-03-30 1986-04-01 Druckverfahren vom Abtastaufzeichnungstyp und dessen Verwirklichungsvorrichtung.

Country Status (3)

Country Link
US (2) US4926248A (de)
EP (1) EP0204094B2 (de)
DE (2) DE3688715T3 (de)

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US4800442A (en) 1985-08-15 1989-01-24 Canon Kabushiki Kaisha Apparatus for generating an image from a digital video signal
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DE68927970T2 (de) * 1988-09-08 1997-10-09 Canon Kk Punktbilddatenausgabegerät
US7382929B2 (en) * 1989-05-22 2008-06-03 Pixel Instruments Corporation Spatial scan replication circuit
US5111217A (en) * 1989-12-18 1992-05-05 Eastman Kodak Company Dot printer and method for grey level recording
EP0959615B1 (de) * 1990-01-19 2005-03-16 Canon Kabushiki Kaisha Farbbildverarbeitungsgerät
US5109283A (en) * 1990-03-02 1992-04-28 Xerographic Laser Images Corporation Raster scanning engine driver which independently locates engine drive signal transistors within each cell area
US5122883A (en) * 1990-03-02 1992-06-16 Xerographic Laser Images Corporation Raster scanning engine driver which independently locates engine drive signal transitions within each pixel
EP0454088B1 (de) * 1990-04-25 1998-07-01 Canon Kabushiki Kaisha Bildverarbeitungsvorrichtung
US5272544A (en) * 1990-05-29 1993-12-21 Canon Kabushiki Kaisha Digital/analog converter and image processing apparatus using the same
US5583660A (en) * 1990-09-14 1996-12-10 Minnesota Mining And Manufacturing Company Non-perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation
US5323245A (en) * 1990-09-14 1994-06-21 Minnesota Mining And Manufacturing Company Perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation
US5264926A (en) * 1990-09-14 1993-11-23 Minnesota Mining And Manufacturing Company Perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation
US5253084A (en) * 1990-09-14 1993-10-12 Minnesota Mining And Manufacturing Company General kernel function for electronic halftone generation
US5258832A (en) * 1990-09-14 1993-11-02 Minnesota Mining And Manufacturing Company Non-perpendicular, unequal frequency non-conventional screen patterns for electronic halftone generation
EP0479537B1 (de) * 1990-10-03 1999-01-20 Canon Kabushiki Kaisha Abbildungsgerät
JP3176083B2 (ja) * 1991-05-20 2001-06-11 キヤノン株式会社 画像処理装置及びその方法
EP0520093B1 (de) * 1991-06-24 1996-09-25 Agfa-Gevaert N.V. Parallel-Serie-Umwandlung von Informationsdaten
US5367381A (en) * 1991-07-29 1994-11-22 Xerox Corporation Method and apparatus for enhanced resolution and contrast via super intensity controlled overscanned illumination in a two dimensional high addressability printer
US5357273A (en) * 1991-07-29 1994-10-18 Xerox Corporation Resolution conversion via intensity controlled overscanned illumination for optical printers and the like having high gamma photosensitive recording media
US5309246A (en) * 1991-09-18 1994-05-03 Eastman Kodak Company Technique for generating additional colors in a halftone color image through use of overlaid primary colored halftone dots of varying size
JP3246754B2 (ja) * 1991-09-20 2002-01-15 株式会社日立製作所 光記録装置及び情報処理システム
US6262809B1 (en) 1991-12-27 2001-07-17 Minolta Co., Ltd. Image processing apparatus shifting image data between adjacent picture elements
EP0564868A3 (en) * 1992-04-06 1993-11-10 Konishiroku Photo Ind Image forming apparatus
WO1993022871A1 (en) * 1992-05-06 1993-11-11 Microsoft Corporation Method and system of color halftone reproduction
US5274472A (en) * 1992-05-21 1993-12-28 Xerox Corporation High addressability image generator using pseudo interpolation of video and screen data
JPH06155815A (ja) * 1992-11-18 1994-06-03 Konica Corp 画像形成装置
US5493323A (en) * 1993-08-05 1996-02-20 Xerox Corporation Color images having multiple separations with minimally overlapping halftone dots
EP0652671A3 (de) * 1993-11-05 1995-06-21 Ibm Umsetzung von digitalen Farbbildern.
DE69433608T2 (de) * 1993-12-27 2005-02-17 Sharp K.K. Verfahren zur Gradationssteuerung und Verbesserung der Bildqualität bei einem Thermodrucker
WO1997035423A1 (en) * 1996-03-22 1997-09-25 Minnesota Mining And Manufacturing Company Method for encoding image data for multi-color imaging
US6025865A (en) * 1996-09-10 2000-02-15 Mitsubishi Chemical America Variable color intensity laser printing
US6097502A (en) 1996-12-18 2000-08-01 Seiko Epson Corporation Multilevel screening for color laser printer
JP3244081B2 (ja) * 1999-02-25 2002-01-07 セイコーエプソン株式会社 電子写真装置及び電子写真の画像処理方法
US6633412B1 (en) 1999-03-26 2003-10-14 Seiko Epson Corporation Smoothness enhancement in laser printing through periodic modulation of halftone cell
JP3589286B2 (ja) 1999-08-23 2004-11-17 セイコーエプソン株式会社 画像処理装置及びその方法、並びにその画像処理装置を備えたプリンタシステム
US7072072B1 (en) * 2000-05-02 2006-07-04 Xerox Corporation Color rendering optimized for text and line art
US7031025B1 (en) 2000-08-23 2006-04-18 Hewlett-Packard Development Company, L.P. Combined dot density and dot size modulation
US6999202B2 (en) 2001-03-27 2006-02-14 Polaroid Corporation Method for generating a halftone of a source image
US6842186B2 (en) 2001-05-30 2005-01-11 Polaroid Corporation High speed photo-printing apparatus
US6937365B2 (en) 2001-05-30 2005-08-30 Polaroid Corporation Rendering images utilizing adaptive error diffusion
US6906736B2 (en) 2002-02-19 2005-06-14 Polaroid Corporation Technique for printing a color image
US7283666B2 (en) 2003-02-27 2007-10-16 Saquib Suhail S Digital image exposure correction
US20040207890A1 (en) * 2003-04-16 2004-10-21 Breswick Curt Paul Method and apparatus for controlling shifting of data out of at least one image sensor
US8773685B2 (en) 2003-07-01 2014-07-08 Intellectual Ventures I Llc High-speed digital image printing system
WO2007052595A1 (ja) * 2005-11-02 2007-05-10 Dai Nippon Printing Co., Ltd 感熱記録装置、画像形成方法及び印画物
US20090021545A1 (en) * 2007-07-19 2009-01-22 Samsung Electronics Co. Ltd. Image forming apparatus and method of generating output signal thereof

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Publication number Priority date Publication date Assignee Title
NL299203A (de) * 1962-07-02
JPS4923645A (de) 1972-06-21 1974-03-02
GB1448112A (en) * 1973-02-13 1976-09-02 Int Publishing Corp Ltd Electronic screening
US4040094A (en) * 1973-02-13 1977-08-02 International Publishing Corporation Ltd. Electronic screening
JPS5255642A (en) 1975-10-31 1977-05-07 Matsushita Graphic Communic Recorder
US4149183A (en) * 1976-05-21 1979-04-10 Xerox Corporation Electronic halftone generator
GB1604904A (en) 1977-05-18 1981-12-16 Raychem Corp Electrical devices and heating method
JPS54144201A (en) 1978-04-29 1979-11-10 Gakken Co Ltd Halfftone image signal generator
JPS56153331A (en) * 1980-04-30 1981-11-27 Fuji Photo Film Co Ltd Laser recorder
JPS5717265A (en) 1980-07-07 1982-01-28 Toshiba Corp Facsimile recording and control system
JPS5757679A (en) * 1980-09-24 1982-04-06 Canon Inc Device for driving thermal head
JPS5764565A (en) * 1980-10-09 1982-04-19 Canon Inc Digital color pinter
JPS5799866A (en) * 1980-12-15 1982-06-21 Canon Inc Picture image binary-coding method
US4498108A (en) * 1980-12-29 1985-02-05 Dr.-Ing. Rudolf Hell Gmbh Screen for reproducing continuous-tone pictures
JPS57171337A (en) * 1981-04-14 1982-10-21 Dainippon Screen Mfg Co Ltd Production of halftone plate picture
US4499489A (en) 1981-06-08 1985-02-12 Dr. Ing. Rudolf Hell Gmbh Production of screen printing blocks
JPS5811941A (ja) * 1981-07-16 1983-01-22 Dainippon Screen Mfg Co Ltd 網目版画像記録装置における絵柄信号と文字信号の処理方法
JPS5814669A (ja) 1981-07-20 1983-01-27 Fuji Photo Film Co Ltd 網目画像信号作成方法
JPS5856572A (ja) * 1981-09-30 1983-04-04 Nippon Telegr & Teleph Corp <Ntt> カラ−再現方法
US4507685A (en) * 1982-06-25 1985-03-26 Canon Kabushiki Kaisha Image recording device
JPS5968245A (ja) * 1982-10-13 1984-04-18 Ricoh Co Ltd 多色インクジエツト記録方法
US4558328A (en) * 1982-10-26 1985-12-10 Victor Company Of Japan, Ltd. High resolution thermal ink transfer printer
JPS5977769A (ja) * 1982-10-27 1984-05-04 Canon Inc 像再生装置
US4683492A (en) * 1983-03-08 1987-07-28 Canon Kabushiki Kaisha Method and apparatus for recording a full-color image with a plurality of colorants on the basis of a set of area factors for the colorants selected from a plurality of sets of area factors calculated from a plurality of sets of equations
US4680646A (en) * 1983-09-05 1987-07-14 Canon Kabushiki Kaisha Image forming device for reproducing a half-tone image
JPS60145769A (ja) * 1984-01-09 1985-08-01 Ricoh Co Ltd 多色連続階調画の表現方法
JPH0737138B2 (ja) * 1984-02-20 1995-04-26 キヤノン株式会社 カラー画像形成装置
US4680625A (en) * 1984-07-18 1987-07-14 Konishiroku Photo Industry Co., Ltd. Method and apparatus for multicolor image forming
US4800442A (en) * 1985-08-15 1989-01-24 Canon Kabushiki Kaisha Apparatus for generating an image from a digital video signal

Also Published As

Publication number Publication date
EP0204094B2 (de) 1998-08-19
EP0204094A2 (de) 1986-12-10
US4926248A (en) 1990-05-15
USRE38235E1 (en) 2003-08-26
DE3688715T2 (de) 1993-10-28
EP0204094A3 (en) 1988-05-25
DE3688715T3 (de) 1999-05-06
EP0204094B1 (de) 1993-07-21
DE3688715T4 (de) 1995-08-10

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: RICOH PRINTING SYSTEMS, LTD., TOKIO/TOKYO, JP