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1977-01-31 |
1978-04-11 |
Dacom, Inc. |
Electronic half-tone generating means for facsimile reproduction system
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1977-02-23 |
1978-10-24 |
International Business Machines Corporation |
Apparatus and method for digital halftone reproduction
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FR2386213A1
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1977-03-31 |
1978-10-27 |
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Procede de reproduction a resolution fine a partir d'un balayage a resolution grossiere
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1977-03-31 |
1979-04-17 |
International Business Machines Corporation |
Methods of a coarse-scan/fine-print character reproduction with compression
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JPS5821979B2
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1977-05-02 |
1983-05-06 |
日本電信電話株式会社 |
画像信号の網点処理方式
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1977-07-07 |
1980-01-22 |
Xerox Corporation |
Electronic halftone screening
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1977-07-07 |
1979-04-10 |
Xerox Corporation |
Variable angle electronic halftone screening
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1978-04-24 |
1981-07-14 |
Xerox Corporation |
Adapter for raster output scanning printer
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JPS5536896A
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1978-07-14 |
1980-03-14 |
Information Int Inc |
Preparing halfftone duplicate and system thereof
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1978-11-24 |
1980-02-19 |
The Mead Corporation |
Gray tone reproduction apparatus
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1979-02-13 |
1984-08-28 |
Coulter Systems Corporation |
Imaging by varying the placement of elements in the pixels
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JPS55146582A
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1979-04-27 |
1980-11-14 |
Matsushita Electric Ind Co Ltd |
Image recording method
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JPS55164868A
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1979-06-08 |
1980-12-22 |
Mitsubishi Electric Corp |
Image recorder into plastic cards
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JPS5616284A
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1979-07-18 |
1981-02-17 |
Sanyo Electric Co Ltd |
Ink jet printer
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JPS5619777A
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1979-07-25 |
1981-02-24 |
Yokogawa Hokushin Electric Corp |
Gradation recording device
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EP0074422B1
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1981-09-12 |
1985-07-03 |
DR.-ING. RUDOLF HELL GmbH |
Verfahren zur Herstellung von Druckformen mittels unregelmässig verteilter Druckpunkte
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1979-07-31 |
1983-01-05 |
Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel |
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JPS5576390A
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1979-09-03 |
1980-06-09 |
Ricoh Kk |
Dither image processing method
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JPS5646364A
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1979-09-10 |
1981-04-27 |
Xerox Corp |
Digital convertion in white and black image
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1979-10-24 |
1982-05-13 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren und Anordnung zum Darstellen eines Halbtonbilds
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1979-12-26 |
1981-01-20 |
Xerox Corporation |
Binary graphic printer system having an electronic screen with shift control suited for rescreening
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GB2069793B
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1979-12-29 |
1985-02-13 |
Canon Kk |
Half-tone facsimile
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JPS56155986A
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1980-05-07 |
1981-12-02 |
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Method of generating dot pattern
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JPS5725771A
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1980-07-23 |
1982-02-10 |
Canon Inc |
Picture signal processor
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1980-08-04 |
1982-05-04 |
Xerox Corporation |
Filter for image pixels
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1980-08-04 |
1982-05-04 |
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Filter for image pixels
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1980-09-19 |
1983-11-15 |
Canon Kabushiki Kaisha |
Image signal processing unit
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JPS5762664A
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1980-10-03 |
1982-04-15 |
Ricoh Co Ltd |
Binary processing method for analog picture signal
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1980-10-06 |
1982-06-16 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren und Anordnung zum Darstellen von mehrfarbigen Halbtonbildern
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1981-01-19 |
1984-05-15 |
Ricoh Company, Ltd. |
Method of processing medium tone picture
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JPS57159172A
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1981-03-24 |
1982-10-01 |
Konishiroku Photo Ind Co Ltd |
Image processor
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JPS57193173A
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1981-05-22 |
1982-11-27 |
Fuji Photo Film Co Ltd |
Picture scanning and recording method
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1981-06-29 |
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Method and apparatus for gray level signal processing
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1981-09-08 |
1987-11-10 |
Xerox Corporation |
Halftoning implementation for interactive image editing
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JPS58150370A
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1982-03-02 |
1983-09-07 |
Sony Corp |
プリンタにおける階調信号発生回路
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1982-04-06 |
1997-09-09 |
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Image processing apparatus
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1982-04-06 |
1987-01-28 |
Canon Kk |
Half-tone facsimile system
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JPS5921173A
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1982-07-27 |
1984-02-03 |
Mitsubishi Electric Corp |
カラ−熱転写記録方式
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JPS59101368A
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1982-12-01 |
1984-06-11 |
Canon Inc |
プリンタ付計算機
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1983-06-08 |
1987-10-15 |
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텔레비젼 수신기의 프린터장치
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1983-10-20 |
1985-01-30 |
Robotron Bueromasch |
Verfahren zum erzeugen von halbtonbildern mittels tintenstrahl
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1984-08-02 |
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1984-08-02 |
1987-07-14 |
Metromedia Company |
Method and apparatus for controlling ink-jet color printing heads
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1984-11-22 |
1988-04-05 |
Matsushita Electric Industrial Co., Ltd. |
Method and apparatus for generating pseudo-halftone dots by comparing gray scale values of an original with dither threshold values stored in cells of a matrix array divided into imaginary matrices of elemental areas each containing one cell
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Appareil et procede de traitement d'images
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Printing random patterns with fluid jets
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Video signal processing with added probabilistic dither
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1987-01-20 |
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Process for providing digital halftone images with random error diffusion
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1988-12-15 |
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Dainippon Screen Mfg Co Ltd |
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Process for providing digital halftone images with random error diffusion
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1989-11-02 |
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Image processing apparatus comprising means for judging image area of pseudo half-tone image
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1992-05-26 |
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Xerox Corporation |
Half-tone printing with thermal ink jet using random spot distribution in one dimension
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1994-05-27 |
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Colorspan Corporation |
Ink jet printer with artifact-reducing drive circuit
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1994-09-28 |
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Method of printing with an ink jet printer using an enhanced horizontal resolution
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