DE2623768C2 - Verfahren und Vorrichtung zur Wiedergabe von Halbtonbildern - Google Patents

Verfahren und Vorrichtung zur Wiedergabe von Halbtonbildern

Info

Publication number
DE2623768C2
DE2623768C2 DE2623768A DE2623768A DE2623768C2 DE 2623768 C2 DE2623768 C2 DE 2623768C2 DE 2623768 A DE2623768 A DE 2623768A DE 2623768 A DE2623768 A DE 2623768A DE 2623768 C2 DE2623768 C2 DE 2623768C2
Authority
DE
Germany
Prior art keywords
points
droplets
matrix cell
point
ink
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
Application number
DE2623768A
Other languages
German (de)
English (en)
Other versions
DE2623768A1 (de
Inventor
James Michael Deerfield Ill. Berry
Anthony Bellwood Ill. Hauser
Kurt Edward Mount Prospect Ill. Knuth
Gary Bernard Chicago Ill. Ollendick
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.)
AT&T Teletype Corp
Original Assignee
Teletype 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 Teletype Corp filed Critical Teletype Corp
Publication of DE2623768A1 publication Critical patent/DE2623768A1/de
Application granted granted Critical
Publication of DE2623768C2 publication Critical patent/DE2623768C2/de
Expired 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
    • H04N1/40087—Multi-toning, i.e. converting a continuous-tone signal for reproduction with more than two discrete brightnesses or optical densities, e.g. dots of grey and black inks on white paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/205—Ink jet for printing a discrete number of tones
    • B41J2/2054—Ink jet for printing a discrete number of tones by the variation of dot disposition or characteristics, e.g. dot number density, dot shape
    • 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
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40043—Circuits exciting or modulating particular heads for reproducing continuous tone value scales using more than one type of modulation, e.g. pulse width modulation and amplitude modulation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/18—Ink recirculation systems
    • B41J2/185—Ink-collectors; Ink-catchers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Fax Reproducing Arrangements (AREA)
  • Ink Jet (AREA)
DE2623768A 1975-06-02 1976-05-26 Verfahren und Vorrichtung zur Wiedergabe von Halbtonbildern Expired DE2623768C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/583,306 US3977007A (en) 1975-06-02 1975-06-02 Gray tone generation

Publications (2)

Publication Number Publication Date
DE2623768A1 DE2623768A1 (de) 1976-12-16
DE2623768C2 true DE2623768C2 (de) 1986-05-15

Family

ID=24332550

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2623768A Expired DE2623768C2 (de) 1975-06-02 1976-05-26 Verfahren und Vorrichtung zur Wiedergabe von Halbtonbildern

Country Status (5)

Country Link
US (1) US3977007A (https=)
JP (2) JPS51148428A (https=)
CA (1) CA1074387A (https=)
DE (1) DE2623768C2 (https=)
GB (1) GB1552830A (https=)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
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US4065773A (en) * 1976-04-05 1977-12-27 Teletype Corporation Method and apparatus for generating gray tones in an ink jet printer
US4084196A (en) * 1977-01-31 1978-04-11 Dacom, Inc. Electronic half-tone generating means for facsimile reproduction system
US4106061A (en) * 1977-03-03 1978-08-08 The Mead Corporation Density control for ink jet copier
US4124870A (en) * 1977-03-31 1978-11-07 International Business Machines Corporation Method for improving print quality of coarse-scan/fine-print character reproduction
US4150400A (en) * 1977-03-31 1979-04-17 International Business Machines Corporation Methods of a coarse-scan/fine-print character reproduction with compression
US4210936A (en) * 1977-12-27 1980-07-01 Pitney Bowes Inc. Method and apparatus for reproducing an original gray scale image
US4216480A (en) * 1978-11-13 1980-08-05 International Business Machines Corporation Multiple speed ink jet printer
US4189754A (en) * 1978-11-24 1980-02-19 The Mead Corporation Gray tone reproduction apparatus
US4214277A (en) * 1979-02-02 1980-07-22 Xerox Corporation Halftone implementation apparatus
JPS5935354B2 (ja) * 1979-03-19 1984-08-28 株式会社リコー インクジェット記録方法
JPS55131882A (en) * 1979-04-02 1980-10-14 Canon Inc Electronic equipment
JPS55146582A (en) * 1979-04-27 1980-11-14 Matsushita Electric Ind Co Ltd Image recording method
JPS5616284A (en) * 1979-07-18 1981-02-17 Sanyo Electric Co Ltd Ink jet printer
DE2943018C3 (de) * 1979-10-24 1982-05-13 Siemens AG, 1000 Berlin und 8000 München Verfahren und Anordnung zum Darstellen eines Halbtonbilds
DE3110260C2 (de) * 1980-03-17 1986-07-03 Ricoh Co., Ltd., Tokio/Tokyo Farbstrahldrucker
FR2485851A2 (fr) * 1980-06-26 1981-12-31 Telediffusion Fse Procede pour enregistrer sur un support materiel a deux dimensions une image de television et moyens pour le mettre en oeuvre
US4394662A (en) * 1980-07-31 1983-07-19 Matsushita Research Institute Tokyo, Inc. Dot printer for reproduction of halftone images
JPS5763272A (en) * 1980-10-04 1982-04-16 Ricoh Co Ltd Character height adjusting method in charge deflection type ink jet recording apparatus
DE3037774C2 (de) * 1980-10-06 1982-06-16 Siemens AG, 1000 Berlin und 8000 München Verfahren und Anordnung zum Darstellen von mehrfarbigen Halbtonbildern
JPS57100580A (en) * 1980-12-15 1982-06-22 Fuji Photo Film Co Ltd Ink jet printer
JPS57129749A (en) * 1981-02-06 1982-08-11 Fuji Photo Film Co Ltd Method and device for bringing out medium tone in ink-jet printer
JPS57129751A (en) * 1981-02-06 1982-08-11 Fuji Photo Film Co Ltd Arranging method for heads of ink-jet printer
US4398890A (en) * 1981-03-16 1983-08-16 Knowlton Kenneth C Representation of designs
JPS57159173A (en) * 1981-03-26 1982-10-01 Canon Inc Image processor
US4365275A (en) * 1981-05-08 1982-12-21 Delta Scan, Inc. Method for producing images on radiation sensitive recording mediums
JPS57197191A (en) * 1981-05-30 1982-12-03 Fuji Photo Film Co Ltd Ink jet color print system
JPS5859858A (ja) * 1981-10-07 1983-04-09 Hitachi Ltd インクジエツト記録方法およびその装置
DE3317579A1 (de) * 1982-05-14 1983-11-17 Canon K.K., Tokyo Verfahren und einrichtung zur bilderzeugung
US4560997A (en) * 1982-07-07 1985-12-24 Canon Kabushiki Kaisha Method and apparatus for forming a pattern
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
JPS5952658A (ja) * 1982-09-18 1984-03-27 Canon Inc 画像形成装置
JPS59115853A (ja) * 1982-12-23 1984-07-04 Sharp Corp インクジエツト記録装置
GB2139450B (en) * 1983-03-08 1987-12-16 Canon Kk Color picture forming apparatus
US4630125A (en) * 1983-06-01 1986-12-16 Xerox Corporation Unscreening of stored digital halftone images
JPS59230783A (ja) * 1983-06-13 1984-12-25 Toshiba Corp 画像形成装置
US4617580A (en) * 1983-08-26 1986-10-14 Canon Kabushiki Kaisha Apparatus for recording on different types of mediums
JPS60152172A (ja) * 1984-01-19 1985-08-10 Canon Inc カラ−画像形成装置
CA1244714A (en) * 1984-04-16 1988-11-15 William J. Debonte Method for selective multi-cycle resonant operation of an ink jet apparatus for controlling dot size
US4730185A (en) * 1984-07-06 1988-03-08 Tektronix, Inc. Graphics display method and apparatus for color dithering
JPS6125365A (ja) * 1984-07-13 1986-02-04 Canon Inc 中間調画像形成方法
US4680596A (en) * 1984-08-02 1987-07-14 Metromedia Company Method and apparatus for controlling ink-jet color printing heads
JPS6183046A (ja) * 1984-09-29 1986-04-26 Minolta Camera Co Ltd 階調表現可能なインクジエツト記録装置
FR2571663B1 (fr) * 1984-10-11 1987-01-16 Matra Document d'identite difficilement falsifiable et procede de fabrication d'un tel document
JPS61170185A (ja) * 1985-01-23 1986-07-31 Victor Co Of Japan Ltd 画素情報処理方式
USRE37862E1 (en) * 1985-01-31 2002-10-01 Thomas G. Hertz Method and apparatus for high resolution ink jet printing
US4620196A (en) * 1985-01-31 1986-10-28 Carl H. Hertz Method and apparatus for high resolution ink jet printing
US4677571A (en) * 1985-02-08 1987-06-30 Rise Technology Inc. Electronic publishing
JPS62225363A (ja) * 1986-03-27 1987-10-03 Minolta Camera Co Ltd インクジエツト記録装置
JPS63166545A (ja) * 1986-12-19 1988-07-09 ゼロックス　コーポレーション スポットサイズ可変の音響プリンタ
USH996H (en) 1987-01-20 1991-11-05 Recognition Equipment Incorporated High resolution page image display system
US4943813A (en) * 1987-06-01 1990-07-24 Hewlett-Packard Company Method of generating overhead transparency projecting using an ink-jet device
JPH01255568A (ja) * 1988-04-05 1989-10-12 Seiko Instr Inc 熱転写カラープリンタ
US5107346A (en) * 1988-10-14 1992-04-21 Bowers Imaging Technologies, Inc. Process for providing digital halftone images with random error diffusion
US4920501A (en) * 1988-10-19 1990-04-24 Eastman Kodak Company Digital halftoning with minimum visual modulation patterns
NL8902654A (nl) * 1988-11-24 1990-06-18 Oce Nederland Bv Werkwijze en inrichting voor het verwerken en weergeven van beeldinformatie.
US5051841A (en) * 1989-10-16 1991-09-24 Bowers Imaging Technologies, Inc. Process for providing digital halftone images with random error diffusion
US5341228A (en) * 1990-12-04 1994-08-23 Research Corporation Technologies Method and apparatus for halftone rendering of a gray scale image using a blue noise mask
DE69124529T2 (de) * 1991-01-10 1997-08-21 Wang Laboratories, Inc., Billerica, Mass. Verfahren zur transformierung eines ditherbildes
US5398109A (en) * 1991-03-12 1995-03-14 Mita Industrial Co., Ltd. Apparatus and method for correcting color image data according to a masking equation
US5416612A (en) * 1992-11-06 1995-05-16 Iris Graphics Inc. Apparatus and method for producing color half-tone images
US5412410A (en) * 1993-01-04 1995-05-02 Xerox Corporation Ink jet printhead for continuous tone and text printing
CN1104791A (zh) * 1993-12-30 1995-07-05 富冈信 一种数据处理用的二维代码纸
US5598204A (en) * 1994-03-25 1997-01-28 Xerox Corporation Image halftoning system capable of producing additional gradations
US5718457A (en) * 1994-07-29 1998-02-17 Elpatronic Ag Method of marking objects with code symbols
US5625397A (en) * 1994-11-23 1997-04-29 Iris Graphics, Inc. Dot on dot ink jet printing using inks of differing densities
US5975671A (en) * 1996-05-30 1999-11-02 Eastman Kodak Company Method and apparatus for printing an image on a device having multiple dot densities and multiple dot areas
US6511163B1 (en) * 1998-03-12 2003-01-28 Iris Graphics, Inc. Printing system
US6626527B1 (en) * 1998-03-12 2003-09-30 Creo Americas, Inc. Interleaved printing
JP3610250B2 (ja) * 1998-11-05 2005-01-12 キヤノン株式会社 インクジェット記録装置及びその記録制御方法
USD417235S (en) 1998-12-10 1999-11-30 Mark Malik Personal identification number card
US6318832B1 (en) 2000-03-24 2001-11-20 Lexmark International, Inc. High resolution printing
JP2002029072A (ja) * 2000-07-14 2002-01-29 Canon Inc インクジェット記録装置及びその方法、コンピュータ可読メモリ
JP3507415B2 (ja) * 2000-07-17 2004-03-15 キヤノン株式会社 記録装置および記録方法
JP3970096B2 (ja) * 2001-06-07 2007-09-05 キヤノン株式会社 インクジェット記録方法及びインクジェット記録装置
JP2003001813A (ja) * 2001-06-27 2003-01-08 Seiko Epson Corp 各画素毎にマスクパターンを変更可能な印刷
US7140709B2 (en) * 2004-02-24 2006-11-28 Eastman Kodak Company Using inkjet printer to apply protective ink
DE202005000255U1 (de) * 2005-01-08 2005-03-17 Francotyp Postalia Ag Druckeinrichtung
WO2010065697A1 (en) * 2008-12-03 2010-06-10 Videojet Technologies Inc. An inkjet printing system and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373437A (en) * 1964-03-25 1968-03-12 Richard G. Sweet Fluid droplet recorder with a plurality of jets
DE1772367C3 (de) * 1968-05-04 1974-10-31 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur gerasterten Reproduktion von Halbtonbildern
US3604846A (en) * 1969-03-03 1971-09-14 Mead Corp Method and system for reconstruction of half-tone images
GB1448112A (en) * 1973-02-13 1976-09-02 Int Publishing Corp Ltd Electronic screening
US3928718A (en) * 1973-05-09 1975-12-23 Hitachi Ltd Image reproducing system

Also Published As

Publication number Publication date
GB1552830A (en) 1979-09-19
DE2623768A1 (de) 1976-12-16
JPS6130353Y2 (https=) 1986-09-05
US3977007A (en) 1976-08-24
JPS6017065U (ja) 1985-02-05
CA1074387A (en) 1980-03-25
JPS51148428A (en) 1976-12-20

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: BLUMBACH, P., DIPL.-ING., 6200 WIESBADEN WESER, W.

8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: H04N 1/00

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee