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CH330521A - Method and device for producing a raster image - Google Patents

Method and device for producing a raster image

Info

Publication number
CH330521A
CH330521A CH330521DA CH330521A CH 330521 A CH330521 A CH 330521A CH 330521D A CH330521D A CH 330521DA CH 330521 A CH330521 A CH 330521A
Authority
CH
Switzerland
Prior art keywords
producing
raster image
raster
image
Prior art date
Application number
Other languages
German (de)
Inventor
Sinius Hassing Oluf
Original Assignee
Lettergieterij Amsterdam Voorh
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 Lettergieterij Amsterdam Voorh filed Critical Lettergieterij Amsterdam Voorh
Publication of CH330521A publication Critical patent/CH330521A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
CH330521D 1953-12-09 1954-11-30 Method and device for producing a raster image CH330521A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL183455 1953-12-09

Publications (1)

Publication Number Publication Date
CH330521A true CH330521A (en) 1958-06-15

Family

ID=19750634

Family Applications (1)

Application Number Title Priority Date Filing Date
CH330521D CH330521A (en) 1953-12-09 1954-11-30 Method and device for producing a raster image

Country Status (5)

Country Link
CH (1) CH330521A (en)
DE (1) DE960693C (en)
FR (1) FR1114783A (en)
GB (1) GB779912A (en)
NL (1) NL183455B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2759718C2 (en) * 1977-09-06 1985-05-15 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Process for the production of screened printing forms
DE2739977C3 (en) 1977-09-06 1981-01-29 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Engraving device for the production of printing forms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE604393C (en) *
DE635761C (en) * 1934-07-24 1936-09-30 Hans Richter Dr Device for the production of raster negatives

Also Published As

Publication number Publication date
GB779912A (en) 1957-07-24
FR1114783A (en) 1956-04-17
NL183455B (en)
DE960693C (en) 1957-03-28

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