DK145136C - Apparat til fremstilling af et rasterbillede - Google Patents

Apparat til fremstilling af et rasterbillede

Info

Publication number
DK145136C
DK145136C DK122668A DK122668A DK145136C DK 145136 C DK145136 C DK 145136C DK 122668 A DK122668 A DK 122668A DK 122668 A DK122668 A DK 122668A DK 145136 C DK145136 C DK 145136C
Authority
DK
Denmark
Prior art keywords
preparing
raster picture
raster
picture
Prior art date
Application number
DK122668A
Other languages
English (en)
Other versions
DK145136B (da
Inventor
W W Moe
Original Assignee
Printing Dev 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 Printing Dev Inc filed Critical Printing Dev Inc
Publication of DK145136B publication Critical patent/DK145136B/da
Application granted granted Critical
Publication of DK145136C publication Critical patent/DK145136C/da

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)
  • Facsimile Scanning Arrangements (AREA)
DK122668A 1967-03-22 1968-03-21 Apparat til fremstilling af et rasterbillede DK145136C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62503867A 1967-03-22 1967-03-22
US62503867 1967-03-22

Publications (2)

Publication Number Publication Date
DK145136B DK145136B (da) 1982-09-13
DK145136C true DK145136C (da) 1983-03-28

Family

ID=24504320

Family Applications (1)

Application Number Title Priority Date Filing Date
DK122668A DK145136C (da) 1967-03-22 1968-03-21 Apparat til fremstilling af et rasterbillede

Country Status (7)

Country Link
CH (1) CH486322A (da)
DE (1) DE1772022C3 (da)
DK (1) DK145136C (da)
FR (1) FR1605174A (da)
GB (1) GB1206681A (da)
NL (1) NL152670B (da)
SE (1) SE326892B (da)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983319A (en) * 1973-11-12 1976-09-28 Printing Developments, Inc. Electronic screening for image reproduction
US4189752A (en) * 1973-11-12 1980-02-19 Printing Developments, Inc. Electronic screening with galvanometer recorders
DE2739977C3 (de) 1977-09-06 1981-01-29 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Graviervorrichtung zur Herstellung von Druckformen
DE2844158C3 (de) 1978-10-10 1981-10-15 Burda Verwaltungs Kg Schutterwald, 7600 Offenburg Verfahren zur Reproduktion von Originalvorlagen welche bezüglich ihres Farbgehaltes nach einem Dreibereichsverfahren abgetastet werden
FR2467078A1 (fr) * 1979-10-11 1981-04-17 Machulka Grigory Dispositif a laser pour la fabrication des formes d'impression
EP0077410B1 (de) * 1981-10-19 1987-02-04 DR.-ING. RUDOLF HELL GmbH Verfahren zur Verbesserung der Kontrastanhebung
US4701808A (en) * 1983-11-01 1987-10-20 Canon Kabushiki Kaisha Image processing apparatus with variable magnification and gray level processing
DE4038057C2 (de) * 1990-11-29 1997-05-15 Hell Ag Linotype Verfahren zur Generierung und Speicherung von digitalisierten Dichteschwellwerten zur Rasterung einer Halbtonbildvorlage

Also Published As

Publication number Publication date
NL6804028A (da) 1968-09-23
FR1605174A (da) 1973-04-16
SE326892B (da) 1970-08-03
DE1772022C3 (de) 1975-10-16
DK145136B (da) 1982-09-13
GB1206681A (en) 1970-09-30
NL152670B (nl) 1977-03-15
DE1772022A1 (de) 1970-08-06
DE1772022B2 (da) 1975-03-06
CH486322A (de) 1970-02-28

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Legal Events

Date Code Title Description
PBP Patent lapsed