ES2072628T3 - Aparato impresor. - Google Patents

Aparato impresor.

Info

Publication number
ES2072628T3
ES2072628T3 ES91918670T ES91918670T ES2072628T3 ES 2072628 T3 ES2072628 T3 ES 2072628T3 ES 91918670 T ES91918670 T ES 91918670T ES 91918670 T ES91918670 T ES 91918670T ES 2072628 T3 ES2072628 T3 ES 2072628T3
Authority
ES
Spain
Prior art keywords
hardcopy
pels
area modulation
printer apparatus
adfacent
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
ES91918670T
Other languages
English (en)
Inventor
Guillermo S Ferla
Fawwaz N Habbal
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of ES2072628T3 publication Critical patent/ES2072628T3/es
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
    • H04N1/40—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)
  • Laser Beam Printer (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Electronic Switches (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Formation And Processing Of Food Products (AREA)

Abstract

APARATO DE IMPRIMIR PARTICULARMENTE ADECUADO PARA PROPORCIONAR UNA COPIA PERMANENTE DE UNA IMAGEN PRODUCIDA POR EQUIPO MEDICO DE IMAGEN O SIMILAR. EL METODO CREA UNA COPIA PERMANENTE POR MODULACION DE ZONA CON UN GRAN NUMERO DE NIVELES DE GRIS POR CADA ZONA DE MODULACION DE AREA (PIXEL) GENERANDO EN COLIMNAS SUBSTANCIALMENTE ADYACENTES UNIDADES DE SUBPIXELES LLAMADAS PELS. LOS PELS TIENEN UN TAMAÑO INICIAL QUE SE INCREMENTA POR LA ADICION DE SUBPELS, DENOMINADOS LONCHAS.
ES91918670T 1990-11-21 1991-09-23 Aparato impresor. Expired - Lifetime ES2072628T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61688090A 1990-11-21 1990-11-21

Publications (1)

Publication Number Publication Date
ES2072628T3 true ES2072628T3 (es) 1995-07-16

Family

ID=24471358

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91918670T Expired - Lifetime ES2072628T3 (es) 1990-11-21 1991-09-23 Aparato impresor.

Country Status (8)

Country Link
US (1) US5355303A (es)
EP (1) EP0511335B1 (es)
JP (1) JP2718570B2 (es)
AT (1) ATE119475T1 (es)
DE (1) DE69108010T2 (es)
DK (1) DK0511335T3 (es)
ES (1) ES2072628T3 (es)
WO (1) WO1992009437A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5904652A (en) * 1995-06-29 1999-05-18 Teratech Corporation Ultrasound scan conversion with spatial dithering
US6248073B1 (en) * 1995-06-29 2001-06-19 Teratech Corporation Ultrasound scan conversion with spatial dithering
US6011577A (en) 1997-06-30 2000-01-04 Polaroid Corporation Modular optical print head assembly
US6061372A (en) * 1997-06-30 2000-05-09 Polaroid Corporation Two-level semiconductor laser driver
JP2000332993A (ja) * 1999-05-17 2000-11-30 Fuji Photo Film Co Ltd 画像記録装置
EP1410916A1 (en) * 2002-10-18 2004-04-21 Hewlett-Packard Company Hybrid printing/pointing device
JP6036632B2 (ja) * 2013-10-04 2016-11-30 カシオ計算機株式会社 印刷版の製造方法、印刷版製造装置、データ生成方法、及びプログラム

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646262A (en) * 1968-03-25 1972-02-29 Printing Dev Inc Electronic reproduction of continuous image with controlled modification of image reproduction
US3604846A (en) * 1969-03-03 1971-09-14 Mead Corp Method and system for reconstruction of half-tone images
US3806641A (en) * 1971-05-17 1974-04-23 Information Int Inc Method and apparatus for forming halftone images
DE2262824C3 (de) * 1972-12-22 1975-07-10 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur gerasterten Reproduktion farbiger Halbtonbilder im Ein- oder Mehrfarbendruck
JPS51150401A (en) * 1975-06-18 1976-12-24 Dainippon Screen Mfg Method and device for scanning recording screen printed image
JPS52106737A (en) * 1976-03-04 1977-09-07 Canon Inc Picture recorder
US4196451A (en) * 1976-05-21 1980-04-01 Xerox Corporation Electronic halftone generator
US4149183A (en) * 1976-05-21 1979-04-10 Xerox Corporation Electronic halftone generator
DE2631850C2 (de) * 1976-07-15 1984-11-22 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren sowie Vorrichtung zum zeilenweisen Belichten punktförmiger Flächenelemente eines lichtempfindlichen Aufzeichnungsträgers
US4074319A (en) * 1976-12-13 1978-02-14 Bell Telephone Laboratories, Incorporated Light emitting diode array imaging system - parallel approach
JPS5563269A (en) * 1978-11-07 1980-05-13 Matsushita Electric Ind Co Ltd Recording head
US4468706A (en) * 1979-02-13 1984-08-28 Coulter Systems Corporation Imaging by varying the placement of elements in the pixels
US4321610A (en) * 1980-05-05 1982-03-23 Computer Peripherals, Inc. Dot matrix printer with half space dot capability
JPS5714058A (en) * 1980-06-28 1982-01-25 Ricoh Co Ltd Printer
JPS57116314A (en) * 1981-01-12 1982-07-20 Canon Inc Image recorder on multilaser beam scanning system
JPS57171337A (en) * 1981-04-14 1982-10-21 Dainippon Screen Mfg Co Ltd Production of halftone plate picture
US4661859A (en) * 1981-06-03 1987-04-28 Xerox Corporation Pulse width modulation greyscale system for halftone printer
US4499489A (en) * 1981-06-08 1985-02-12 Dr. Ing. Rudolf Hell Gmbh Production of screen printing blocks
JPS5817442A (ja) * 1981-07-24 1983-02-01 Dainippon Screen Mfg Co Ltd 画像走査記録装置における連続階調露光方法およびその装置
US4689694A (en) * 1983-01-12 1987-08-25 Canon Kabushiki Kaisha Image recording apparatus utilizing linearly arranged recording elements
JPS6024769A (ja) * 1983-07-20 1985-02-07 Ricoh Co Ltd 中間調画像記録方式
GB8401933D0 (en) * 1984-01-25 1984-02-29 Crosfield Electronics Ltd Half-tone imaging
US4625222A (en) * 1984-05-17 1986-11-25 International Business Machines Corporation Interacting print enhancement techniques
US4651287A (en) * 1984-06-14 1987-03-17 Tsao Sherman H Digital image processing algorithm for output devices with discrete halftone gray scale capability
JPS61199374A (ja) * 1985-02-28 1986-09-03 Ricoh Co Ltd ドツト補正のレ−ザプリンタ
FR2587572B1 (fr) * 1985-03-20 1994-02-18 Canon Kk Appareil et procede de traitement d'images
EP0361538A1 (en) * 1985-04-12 1990-04-04 International Business Machines Corporation Method and system for edge enhancement in reproducing multi-level digital images on a bi-level printer of fixed dot size
JPS61285867A (ja) * 1985-06-12 1986-12-16 Dainippon Screen Mfg Co Ltd 網点画像記録方法並びに装置
US4775896A (en) * 1985-08-08 1988-10-04 Konishiroku Photo Industry Co., Ltd. Image recording apparatus
JPH0782156B2 (ja) * 1986-05-23 1995-09-06 株式会社日立製作所 記録光学系
JP2694928B2 (ja) * 1986-12-09 1997-12-24 ポラロイド コーポレーシヨン 熱画像形成媒体
JPS63173074A (ja) * 1987-01-12 1988-07-16 Ricoh Co Ltd デジタル複写装置
JP2525794B2 (ja) * 1987-02-27 1996-08-21 大日本スクリ−ン製造株式会社 網点画像記録装置
JPS63236472A (ja) * 1987-03-25 1988-10-03 Fujitsu Ltd 画像情報符号化処理装置
JPH01258953A (ja) * 1988-04-08 1989-10-16 Ricoh Co Ltd レーザ書込み装置
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
JPH085211B2 (ja) * 1988-06-24 1996-01-24 シャープ株式会社 レーザ光照射装置
US4870652A (en) * 1988-07-08 1989-09-26 Xerox Corporation Monolithic high density arrays of independently addressable semiconductor laser sources
US4916530A (en) * 1988-09-02 1990-04-10 Itek Graphix Corp. High resolution halftone dot generator system including LED array
US4918622A (en) * 1988-11-16 1990-04-17 Eastman Kodak Company Electronic graphic arts screener
US4914455A (en) * 1989-07-31 1990-04-03 Xerox Corporation Process control for electrostatographic printers

Also Published As

Publication number Publication date
US5355303A (en) 1994-10-11
EP0511335B1 (en) 1995-03-08
ATE119475T1 (de) 1995-03-15
DE69108010T2 (de) 1995-07-06
EP0511335A1 (en) 1992-11-04
JPH05503200A (ja) 1993-05-27
WO1992009437A1 (en) 1992-06-11
DE69108010D1 (de) 1995-04-13
DK0511335T3 (da) 1995-06-26
JP2718570B2 (ja) 1998-02-25

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