FR2401772A1 - Procede de realisation d'une matrice d'impression tramee - Google Patents

Procede de realisation d'une matrice d'impression tramee

Info

Publication number
FR2401772A1
FR2401772A1 FR7824942A FR7824942A FR2401772A1 FR 2401772 A1 FR2401772 A1 FR 2401772A1 FR 7824942 A FR7824942 A FR 7824942A FR 7824942 A FR7824942 A FR 7824942A FR 2401772 A1 FR2401772 A1 FR 2401772A1
Authority
FR
France
Prior art keywords
tramed
making
image values
printing matrix
main
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.)
Granted
Application number
FR7824942A
Other languages
English (en)
Other versions
FR2401772B1 (fr
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.)
HELL RUDOLF GmbH
Original Assignee
HELL RUDOLF 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 HELL RUDOLF GmbH filed Critical HELL RUDOLF GmbH
Publication of FR2401772A1 publication Critical patent/FR2401772A1/fr
Application granted granted Critical
Publication of FR2401772B1 publication Critical patent/FR2401772B1/fr
Granted 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
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • H04N1/4092—Edge or detail enhancement
    • 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
    • H04N1/40025—Circuits exciting or modulating particular heads for reproducing continuous tone value scales
    • H04N1/40031—Circuits exciting or modulating particular heads for reproducing continuous tone value scales for a plurality of reproducing elements simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

a. Procédé de réalisation d'une matrice d'impression tramée. b. Procédé caractérisé en ce qu'on détecte le modèle avec une plus grande résolution dans le sens de la détection, que la résolution de la trame d'impression pour améliorer la restitution du contour, et pendant la conversion analogique/numérique du signal-image, on crée des valeurs-images intermédiaires, auxiliaires entre les valeurs-images principales, numériques créées à la fréquence du signal de trame, et on les traite comme les valeurs-images principales, dans l'ordre de leur création, et on leur superpose un signal de trame.
FR7824942A 1977-09-06 1978-08-29 Procede de realisation d'une matrice d'impression tramee Granted FR2401772A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2739977A DE2739977C3 (de) 1977-09-06 1977-09-06 Graviervorrichtung zur Herstellung von Druckformen

Publications (2)

Publication Number Publication Date
FR2401772A1 true FR2401772A1 (fr) 1979-03-30
FR2401772B1 FR2401772B1 (fr) 1983-08-05

Family

ID=6018173

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824942A Granted FR2401772A1 (fr) 1977-09-06 1978-08-29 Procede de realisation d'une matrice d'impression tramee

Country Status (8)

Country Link
US (1) US4259697A (fr)
JP (1) JPS5449201A (fr)
CA (1) CA1121732A (fr)
DE (1) DE2739977C3 (fr)
FR (1) FR2401772A1 (fr)
GB (1) GB2006568B (fr)
IT (1) IT1098439B (fr)
NL (1) NL175044C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000502A1 (fr) * 1987-07-22 1989-01-26 Dr.-Ing. Rudolf Hell Gmbh Fonctionnement d'un agencement commutateur utile pour l'exploitation de systemes de gravure de cliches d'impression

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5978353A (ja) * 1982-10-28 1984-05-07 Dainippon Screen Mfg Co Ltd 網目版画像記録装置における網点形成方法
US5029011A (en) * 1990-04-13 1991-07-02 Ohio Electronic Engravers, Inc. Engraving apparatus with oscillatory movement of tool support shaft monitored and controlled to reduce drift and vibration
US5691818A (en) * 1993-02-25 1997-11-25 Ohio Electronic Engravers, Inc. System and method for enhancing edges and the like for engraving
ES2163875T3 (es) * 1997-06-02 2002-02-01 Heidelberger Druckmasch Ag Procedimiento para la grabacion de cilindros de impresion.
DE19722996A1 (de) 1997-06-02 1998-12-03 Heidelberger Druckmasch Ag Verfahren zur Signalverarbeitung
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
EP1044808B1 (fr) * 1999-04-14 2007-11-28 MDC Max Dätwyler Bleienbach AG Méthode de production de données de gravure

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1331770A (en) * 1918-01-05 1920-02-24 Huttig Mill Work Company Silo-door
US2575546A (en) * 1948-07-24 1951-11-20 Machine for producing screened
US2865984A (en) * 1953-09-03 1958-12-23 Time Inc Edge correcting system for visual image transference apparatus
NL183455B (nl) 1953-12-09 Dijk S Apparatenfabriek B V Va Hydraulische vijzelinrichting.
US2881246A (en) * 1955-09-27 1959-04-07 Fairchild Camera Instr Co Engraving machine
US3904816A (en) * 1971-07-28 1975-09-09 Hell Rudolf Method for the dot-by-dot and line-by-line reproduction of picture originals
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.
DE2609643A1 (de) 1976-03-09 1977-09-22 Hell Rudolf Dr Ing Gmbh Verfahren zur digitalen umformung eines elektrischen signals nach einer vorgegebenen funktion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989000502A1 (fr) * 1987-07-22 1989-01-26 Dr.-Ing. Rudolf Hell Gmbh Fonctionnement d'un agencement commutateur utile pour l'exploitation de systemes de gravure de cliches d'impression
US5036403A (en) * 1987-07-22 1991-07-30 Dr. Ing. Rudolf Hell Gmbh Mode of operating of a circuit arrangement for improving the bounce behavior of print form engraving systems

Also Published As

Publication number Publication date
GB2006568B (en) 1982-03-31
GB2006568A (en) 1979-05-02
JPS5723593B2 (fr) 1982-05-19
DE2739977C3 (de) 1981-01-29
DE2739977A1 (de) 1979-03-15
IT7827276A0 (it) 1978-09-04
IT1098439B (it) 1985-09-07
FR2401772B1 (fr) 1983-08-05
CA1121732A (fr) 1982-04-13
NL175044B (nl) 1984-04-16
NL175044C (nl) 1984-09-17
US4259697A (en) 1981-03-31
NL7809102A (nl) 1979-03-08
DE2739977B2 (de) 1980-05-22
JPS5449201A (en) 1979-04-18

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse