DE1937052C3 - - Google Patents

Info

Publication number
DE1937052C3
DE1937052C3 DE1937052A DE1937052A DE1937052C3 DE 1937052 C3 DE1937052 C3 DE 1937052C3 DE 1937052 A DE1937052 A DE 1937052A DE 1937052 A DE1937052 A DE 1937052A DE 1937052 C3 DE1937052 C3 DE 1937052C3
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.)
Expired
Application number
DE1937052A
Other versions
DE1937052A1 (de
DE1937052B2 (de
Inventor
Peter Charles Pinner Middlesex Pugsley (Grossbritannien)
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.)
CROSFIELD ELECTRONICS Ltd LONDON
Original Assignee
CROSFIELD ELECTRONICS Ltd LONDON
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 CROSFIELD ELECTRONICS Ltd LONDON filed Critical CROSFIELD ELECTRONICS Ltd LONDON
Publication of DE1937052A1 publication Critical patent/DE1937052A1/de
Publication of DE1937052B2 publication Critical patent/DE1937052B2/de
Application granted granted Critical
Publication of DE1937052C3 publication Critical patent/DE1937052C3/de
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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
DE1937052A 1968-07-22 1969-07-21 Schaltung zur Ableitung eines Schwarzdrucksignals B Granted DE1937052B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34792/68A GB1214172A (en) 1968-07-22 1968-07-22 Improvements relating to image reproducing apparatus

Publications (3)

Publication Number Publication Date
DE1937052A1 DE1937052A1 (de) 1970-01-29
DE1937052B2 DE1937052B2 (de) 1979-02-15
DE1937052C3 true DE1937052C3 (de) 1979-10-18

Family

ID=10370002

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1937052A Granted DE1937052B2 (de) 1968-07-22 1969-07-21 Schaltung zur Ableitung eines Schwarzdrucksignals B

Country Status (3)

Country Link
US (1) US3560757A (de)
DE (1) DE1937052B2 (de)
GB (1) GB1214172A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724954A (en) * 1972-01-14 1973-04-03 Photo Electronics Corp Logarithmic circuit with automatic compensation for variations in conditions of operations
DE2206633C3 (de) * 1972-02-11 1981-01-08 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Vorrichtung zur Identifizierung von Farben
US3934136A (en) * 1974-05-06 1976-01-20 Minnesota Mining And Manufacturing Company Threshold signal circuitry for scanning apparatus
JPS5913011B2 (ja) * 1974-06-21 1984-03-27 富士写真フイルム株式会社 写真焼付露光量制御方法
JPS5666974A (en) * 1979-11-02 1981-06-05 Canon Inc Picture forming method
DE3109190C2 (de) * 1981-03-11 1985-07-11 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur Reproduktion farbiger Vorlagen im Vierfarbendruck unter Farbrücknahme
US4642681A (en) * 1982-10-08 1987-02-10 Canon Kabushiki Kaisha Color image processing apparatus for generating color output signals and a black output signal in a mutually exclusive manner
JP3188298B2 (ja) * 1991-12-28 2001-07-16 ローム株式会社 メンバーシップ関数発生装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124036A (en) * 1964-03-10 Method and apparatus for multicolor printing
US2968214A (en) * 1954-11-18 1961-01-17 Hunter Penrose Ltd Modification of the light response from a coloured original
US3041932A (en) * 1957-09-24 1962-07-03 Hunter Penrose Ltd Photographic colour reproduction apparatus

Also Published As

Publication number Publication date
DE1937052A1 (de) 1970-01-29
GB1214172A (en) 1970-12-02
DE1937052B2 (de) 1979-02-15
US3560757A (en) 1971-02-02

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee