DE69422596D1 - Geometrie von Halbtonrastermustern zum Drucken von Bildern hoher Qualität - Google Patents

Geometrie von Halbtonrastermustern zum Drucken von Bildern hoher Qualität

Info

Publication number
DE69422596D1
DE69422596D1 DE69422596T DE69422596T DE69422596D1 DE 69422596 D1 DE69422596 D1 DE 69422596D1 DE 69422596 T DE69422596 T DE 69422596T DE 69422596 T DE69422596 T DE 69422596T DE 69422596 D1 DE69422596 D1 DE 69422596D1
Authority
DE
Germany
Prior art keywords
halftone
geometry
high quality
quality images
printing high
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 - Fee Related
Application number
DE69422596T
Other languages
English (en)
Other versions
DE69422596T2 (de
Inventor
Stephen M Kroon
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Application granted granted Critical
Publication of DE69422596D1 publication Critical patent/DE69422596D1/de
Publication of DE69422596T2 publication Critical patent/DE69422596T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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]
    • 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)
  • Color, Gradation (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
DE69422596T 1993-11-12 1994-11-11 Geometrie von Halbtonrastermustern zum Drucken von Bildern hoher Qualität Expired - Fee Related DE69422596T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15263093A 1993-11-12 1993-11-12

Publications (2)

Publication Number Publication Date
DE69422596D1 true DE69422596D1 (de) 2000-02-17
DE69422596T2 DE69422596T2 (de) 2000-10-19

Family

ID=22543717

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69422596T Expired - Fee Related DE69422596T2 (de) 1993-11-12 1994-11-11 Geometrie von Halbtonrastermustern zum Drucken von Bildern hoher Qualität

Country Status (4)

Country Link
US (1) US5957593A (de)
EP (1) EP0653878B1 (de)
JP (1) JP2961503B2 (de)
DE (1) DE69422596T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2951800A (en) * 2000-01-03 2001-07-16 Array Ab Printing device and method
GB0105067D0 (en) * 2001-03-01 2001-04-18 Zipher Ltd Improvements in printing
US7733532B2 (en) 2004-10-27 2010-06-08 Marvell International Technology Ltd. Laser print apparatus with dual halftones
EP3024843B1 (de) 2013-07-25 2022-08-31 Bio-Rad Laboratories, Inc. Erweiterte funktionalität und abgabe eines proteins aus einem porösen substrat
US9671402B2 (en) 2014-02-27 2017-06-06 Bio-Rad Laboratories, Inc. Lateral flow blotting assay
WO2018140379A1 (en) 2017-01-27 2018-08-02 Bio-Rad Laboratories, Inc. Lateral flow device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689694A (en) * 1983-01-12 1987-08-25 Canon Kabushiki Kaisha Image recording apparatus utilizing linearly arranged recording elements
US4752822A (en) * 1983-03-08 1988-06-21 Canon Kabushiki Kaisha Color halftone image processing apparatus producing various screen angles and having an adaptive color image data conversion look-up table and a small-capacity masking memory
FR2587572B1 (fr) * 1985-03-20 1994-02-18 Canon Kk Appareil et procede de traitement d'images
US4750010A (en) * 1987-01-02 1988-06-07 Eastman Kodak Company Circuit for generating center pulse width modulated waveforms and non-impact printer using same
US5075780A (en) * 1989-03-29 1991-12-24 Mita Industrial Co., Ltd. Method of reproducing gradations according to a ratio of fine pixels turned on to fine pixels turned off
US5221971A (en) * 1990-11-21 1993-06-22 Polaroid Corporation Area modulation printing apparatus
US5325160A (en) * 1991-08-28 1994-06-28 Ricoh Company, Ltd. Half tone recording method and light source device for writing
GB2264024A (en) * 1992-01-31 1993-08-11 Ricoh Kk Image forming apparatus
US5588094A (en) * 1994-01-03 1996-12-24 Tektronix, Inc. Post-processing bit-map decimation compensation method for printing high quality images

Also Published As

Publication number Publication date
JPH07237322A (ja) 1995-09-12
EP0653878A2 (de) 1995-05-17
JP2961503B2 (ja) 1999-10-12
EP0653878B1 (de) 2000-01-12
US5957593A (en) 1999-09-28
DE69422596T2 (de) 2000-10-19
EP0653878A3 (de) 1995-06-21

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication of lapse of patent is to be deleted
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee