HK66493A - Method and apparatus for improving gray scale resolution in an ink jet printing system - Google Patents

Method and apparatus for improving gray scale resolution in an ink jet printing system

Info

Publication number
HK66493A
HK66493A HK664/93A HK66493A HK66493A HK 66493 A HK66493 A HK 66493A HK 664/93 A HK664/93 A HK 664/93A HK 66493 A HK66493 A HK 66493A HK 66493 A HK66493 A HK 66493A
Authority
HK
Hong Kong
Prior art keywords
dot
pixel
printed
pixels
gray scale
Prior art date
Application number
HK664/93A
Other languages
English (en)
Inventor
David J Logan
Original Assignee
Metromedia Co
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 Metromedia Co filed Critical Metromedia Co
Publication of HK66493A publication Critical patent/HK66493A/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
    • H04N1/40—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color, Gradation (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Fax Reproducing Arrangements (AREA)
HK664/93A 1985-03-06 1993-07-08 Method and apparatus for improving gray scale resolution in an ink jet printing system HK66493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/708,744 US4638373A (en) 1985-03-06 1985-03-06 Method and apparatus for improving gray scale resolution in an ink jet printing system

Publications (1)

Publication Number Publication Date
HK66493A true HK66493A (en) 1993-07-16

Family

ID=24847024

Family Applications (1)

Application Number Title Priority Date Filing Date
HK664/93A HK66493A (en) 1985-03-06 1993-07-08 Method and apparatus for improving gray scale resolution in an ink jet printing system

Country Status (7)

Country Link
US (1) US4638373A (ja)
EP (1) EP0194345B1 (ja)
JP (1) JPS61205073A (ja)
AT (1) ATE60858T1 (ja)
CA (1) CA1238237A (ja)
DE (1) DE3581727D1 (ja)
HK (1) HK66493A (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175807A (en) * 1986-12-04 1992-12-29 Quantel Limited Video signal processing with added probabilistic dither
US4930018A (en) * 1988-12-02 1990-05-29 Hewlett-Packard Company Method and system for enhancing the quality of both color and black and white images produced by ink jet printers
US5119186A (en) * 1989-09-28 1992-06-02 International Business Machines Corporation Color mapping system and method
JPH0418357A (ja) * 1990-05-11 1992-01-22 Canon Inc 画像記録装置および記録画像補正方法
US5196942A (en) * 1990-09-17 1993-03-23 Xerox Corporation System and method for determining picture element values
US5608433A (en) * 1994-08-25 1997-03-04 Xerox Corporation Fluid application device and method of operation
US6079806A (en) * 1997-11-17 2000-06-27 Eastman Kodak Company Apparatus for producing halftone images suitable for lithographic printing plate
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
US20050052706A1 (en) * 2003-09-10 2005-03-10 Nelson Terry M. Location patterns and methods and apparatus for generating such patterns
US7783107B2 (en) * 2007-09-06 2010-08-24 Seiko Epson Corporation Characterization of a printed droplet
KR101781500B1 (ko) 2010-10-29 2017-09-26 삼성디스플레이 주식회사 잉크젯 프린팅 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3604846A (en) * 1969-03-03 1971-09-14 Mead Corp Method and system for reconstruction of half-tone images
US4084259A (en) * 1973-11-30 1978-04-11 The Mead Corporation Apparatus for dot matrix recording
US4196454A (en) * 1978-12-04 1980-04-01 Xerox Corporation Tone error control for relatively large image areas
JPS5896459A (ja) * 1981-12-04 1983-06-08 Matsushita Electric Ind Co Ltd 画像輝度信号の量子化方法

Also Published As

Publication number Publication date
EP0194345B1 (en) 1991-02-06
EP0194345A2 (en) 1986-09-17
CA1238237A (en) 1988-06-21
US4638373A (en) 1987-01-20
DE3581727D1 (de) 1991-03-14
ATE60858T1 (de) 1991-02-15
EP0194345A3 (en) 1987-05-27
JPS61205073A (ja) 1986-09-11

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)