CA1099148A - Method and apparatus for engraving printing forms - Google Patents

Method and apparatus for engraving printing forms

Info

Publication number
CA1099148A
CA1099148A CA311,117A CA311117A CA1099148A CA 1099148 A CA1099148 A CA 1099148A CA 311117 A CA311117 A CA 311117A CA 1099148 A CA1099148 A CA 1099148A
Authority
CA
Canada
Prior art keywords
signal
image
values
image values
principal
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
Application number
CA311,117A
Other languages
English (en)
French (fr)
Inventor
Juergen Doelves
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.)
Dr Ing Rudolf Hell GmbH
Original Assignee
Dr Ing Rudolf Hell GmbH
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 Dr Ing Rudolf Hell GmbH filed Critical Dr Ing Rudolf Hell GmbH
Application granted granted Critical
Publication of CA1099148A publication Critical patent/CA1099148A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40Picture signal circuits
    • H04N1/40025Circuits exciting or modulating particular heads for reproducing continuous tone value scales

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Image Processing (AREA)
CA311,117A 1977-09-17 1978-09-12 Method and apparatus for engraving printing forms Expired CA1099148A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2741953A DE2741953C3 (de) 1977-09-17 1977-09-17 Graviervorrichtung zum Herstellen von Druckformen
DEP2741953.0 1977-09-17

Publications (1)

Publication Number Publication Date
CA1099148A true CA1099148A (en) 1981-04-14

Family

ID=6019230

Family Applications (1)

Application Number Title Priority Date Filing Date
CA311,117A Expired CA1099148A (en) 1977-09-17 1978-09-12 Method and apparatus for engraving printing forms

Country Status (8)

Country Link
US (1) US4245260A (en, 2012)
JP (1) JPS5454701A (en, 2012)
CA (1) CA1099148A (en, 2012)
DE (1) DE2741953C3 (en, 2012)
FR (1) FR2403190A1 (en, 2012)
GB (1) GB2007460B (en, 2012)
IT (1) IT1101003B (en, 2012)
NL (1) NL175150C (en, 2012)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933198Y2 (ja) * 1979-09-20 1984-09-17 株式会社モリタ製作所 パノラマx線撮影用ゲ−ジ
JPS5655949A (en) * 1979-10-12 1981-05-16 Dainippon Screen Mfg Co Ltd Preparation of dot image by compaction of information
JPS57147636A (en) * 1981-03-09 1982-09-11 Toppan Printing Co Ltd Plate making method for endless print
US4422101A (en) * 1980-07-30 1983-12-20 Toppan Printing Co., Ltd. Electronic cylinder making method
JPS57151947A (en) * 1981-03-17 1982-09-20 Toppan Printing Co Ltd Making device for endless plate
JPS57151946A (en) * 1981-03-17 1982-09-20 Toppan Printing Co Ltd Making device for endless plate
US4672466A (en) * 1985-02-05 1987-06-09 R. R. Donnelley & Sons Company Operator selectable multiple gradation scanner and engraver apparatus and method
DE3724256A1 (de) * 1987-07-22 1989-02-02 Hell Rudolf Dr Ing Gmbh Funktionsweise einer schaltungsanordnung zum betrieb von graviersystemen fuer die gravur von druckformen
EP0465074B1 (en) * 1990-06-27 1995-11-15 Konica Corporation Image forming apparatus
US5642436A (en) * 1990-07-18 1997-06-24 Linotype-Hell Ag Method for generating and storing digitalized density threshold values for the rastering of a half-tone picture original
DE4022772A1 (de) 1990-07-18 1992-02-13 Linotype Ag Verfahren zur generierung und speicherung von digitalisierten dichte-schwellwerten zur rasterung einer halbton-bildvorlage
US5515182A (en) * 1992-08-31 1996-05-07 Howtek, Inc. Rotary scanner
US5691818A (en) * 1993-02-25 1997-11-25 Ohio Electronic Engravers, Inc. System and method for enhancing edges and the like for engraving
US5663803A (en) * 1993-02-25 1997-09-02 Ohio Electronic Engravers, Inc. Engraving method and apparatus for engraving areas using a shaping signal
EP0805585A1 (de) * 1996-04-25 1997-11-05 Schablonentechnik Kufstein Aktiengesellschaft Verfahren zur Herstellung einer Grautonschablone
DE19720877A1 (de) * 1997-05-17 1998-11-19 Anatolii Dipl Ing Fel Verfahren zur Herstellung von Abbildungen auf Glas, Stein und anderen harten Materialien durch Zerstörung ihrer Oberfläche
US6433890B1 (en) 1998-09-24 2002-08-13 Mdc Max Daetwyler Ag System and method for improving printing of a leading edge of an image in a gravure printing process
EP1369230A1 (en) * 2002-06-05 2003-12-10 Kba-Giori S.A. Method of manufacturing an engraved plate
US10265482B2 (en) 2015-10-01 2019-04-23 Soul Skins Llc Needle-point pen apparatus, methods, and systems for administering medication

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865984A (en) * 1953-09-03 1958-12-23 Time Inc Edge correcting system for visual image transference apparatus
US2881246A (en) * 1955-09-27 1959-04-07 Fairchild Camera Instr Co Engraving machine
US3770888A (en) * 1971-10-04 1973-11-06 Werkspoor Amsterdam Nv Method and apparatus for controlling the engraving pattern of an electromagnetic gravure engraving
US3769455A (en) * 1972-03-01 1973-10-30 Werkspoor Amsterdam Nv Method and apparatus for making half-tone screen printing cylinders
US3983319A (en) * 1973-11-12 1976-09-28 Printing Developments, Inc. Electronic screening for image reproduction
NL167897C (nl) * 1975-02-28 1982-02-16 Hell Rudolf Dr Ing Gmbh Inrichting voor het vervaardigen van gerasterde drukvormen overeenkomstig een beeldorigineel.
DE2516332C2 (de) * 1975-04-15 1987-01-22 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Codierung von elektrischen Signalen, die bei der Abtastung eines graphischen Musters mit aus Text und Bild gemischtem Inhalt gewonnen werden

Also Published As

Publication number Publication date
JPS6235104B2 (en, 2012) 1987-07-30
DE2741953C3 (de) 1981-05-21
IT1101003B (it) 1985-09-28
FR2403190A1 (fr) 1979-04-13
US4245260A (en) 1981-01-13
JPS5454701A (en) 1979-05-01
DE2741953B2 (de) 1980-09-18
NL175150B (nl) 1984-05-01
NL7808264A (nl) 1979-03-20
GB2007460B (en) 1982-02-17
IT7827704A0 (it) 1978-09-15
FR2403190B1 (en, 2012) 1983-08-26
NL175150C (nl) 1984-10-01
GB2007460A (en) 1979-05-16
DE2741953A1 (de) 1979-03-29

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Legal Events

Date Code Title Description
MKEX Expiry