DE1772022B2 - - Google Patents

Info

Publication number
DE1772022B2
DE1772022B2 DE19681772022 DE1772022A DE1772022B2 DE 1772022 B2 DE1772022 B2 DE 1772022B2 DE 19681772022 DE19681772022 DE 19681772022 DE 1772022 A DE1772022 A DE 1772022A DE 1772022 B2 DE1772022 B2 DE 1772022B2
Authority
DE
Germany
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.)
Granted
Application number
DE19681772022
Other languages
German (de)
Other versions
DE1772022C3 (de
DE1772022A1 (de
Inventor
William West Stratford Conn. Moe (V.St.A.)
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.)
Printing Developments Inc New York Ny (vsta)
Original Assignee
Printing Developments Inc New York Ny (vsta)
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 Developments Inc New York Ny (vsta) filed Critical Printing Developments Inc New York Ny (vsta)
Publication of DE1772022A1 publication Critical patent/DE1772022A1/de
Publication of DE1772022B2 publication Critical patent/DE1772022B2/de
Application granted granted Critical
Publication of DE1772022C3 publication Critical patent/DE1772022C3/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
    • H04N1/405—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)
DE19681772022 1967-03-22 1968-03-21 Einrichtung zum Herstellen eines Rasterbildes Expired DE1772022C3 (de)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
DE1772022A1 DE1772022A1 (de) 1970-08-06
DE1772022B2 true DE1772022B2 (enExample) 1975-03-06
DE1772022C3 DE1772022C3 (de) 1975-10-16

Family

ID=24504320

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681772022 Expired DE1772022C3 (de) 1967-03-22 1968-03-21 Einrichtung zum Herstellen eines Rasterbildes

Country Status (7)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453610A1 (de) * 1973-11-12 1975-05-22 Printing Dev Inc Einrichtung zum erzeugen eines rasterbildes durch punktweises abtasten einer halbtonvorlage

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2453610A1 (de) * 1973-11-12 1975-05-22 Printing Dev Inc Einrichtung zum erzeugen eines rasterbildes durch punktweises abtasten einer halbtonvorlage

Also Published As

Publication number Publication date
DK145136B (da) 1982-09-13
GB1206681A (en) 1970-09-30
NL152670B (nl) 1977-03-15
CH486322A (de) 1970-02-28
DE1772022C3 (de) 1975-10-16
FR1605174A (enExample) 1973-04-16
DK145136C (da) 1983-03-28
SE326892B (enExample) 1970-08-03
DE1772022A1 (de) 1970-08-06
NL6804028A (enExample) 1968-09-23

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee