ES325713A1 - A circuit provision to produce a color television signal. (Machine-translation by Google Translate, not legally binding) - Google Patents

A circuit provision to produce a color television signal. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES325713A1
ES325713A1 ES0325713A ES325713A ES325713A1 ES 325713 A1 ES325713 A1 ES 325713A1 ES 0325713 A ES0325713 A ES 0325713A ES 325713 A ES325713 A ES 325713A ES 325713 A1 ES325713 A1 ES 325713A1
Authority
ES
Spain
Prior art keywords
color
signals
produce
television signal
brightness
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
ES0325713A
Other languages
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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
Priority claimed from NL6505086A external-priority patent/NL6505086A/xx
Priority claimed from NL6512108A external-priority patent/NL6512108A/xx
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES325713A1 publication Critical patent/ES325713A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/13—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with multiple sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Image Signal Generators (AREA)

Abstract

A circuit arrangement for producing a color television signal, which includes one or more color camera tubes to produce color signals EK1 ... n corresponding to the color components K1 ... n of a scene and a tube of brightness to produce a brightness signal EY corresponding to the brightness Y of the scene, for whose brightness it is valid: Y = a1K1 + ... anKn (where a1 ... an constants), including this arrangement of gamma correction circuitry to effect gamma corrections, characterized in that the signals produced are supplied to a matrix device by means of which color-derived signals are formed E'K1 ... n = EK1 ... n + Β (EY-E ∗ Y), being E ∗ And at least approximately equal to a1EK1 ... + anEKn and being Β a constant that at least for high video frequencies is equal to 1 or greater, because the E'K-derived color signals are converted with the aid of said gamma correctors into corrected gamma (EK) 1 Β signals, and that the color television signal consists of the signals thus obtained. (Machine-translation by Google Translate, not legally binding)
ES0325713A 1965-04-22 1966-04-20 A circuit provision to produce a color television signal. (Machine-translation by Google Translate, not legally binding) Expired ES325713A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6505086A NL6505086A (en) 1965-04-22 1965-04-22
NL6512108A NL6512108A (en) 1965-09-17 1965-09-17

Publications (1)

Publication Number Publication Date
ES325713A1 true ES325713A1 (en) 1967-06-16

Family

ID=26643885

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0325713A Expired ES325713A1 (en) 1965-04-22 1966-04-20 A circuit provision to produce a color television signal. (Machine-translation by Google Translate, not legally binding)

Country Status (4)

Country Link
AT (1) AT259043B (en)
BE (1) BE679963A (en)
ES (1) ES325713A1 (en)
GB (1) GB1086542A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6801742A (en) * 1968-02-08 1969-08-12

Also Published As

Publication number Publication date
GB1086542A (en) 1967-10-11
AT259043B (en) 1967-12-27
BE679963A (en) 1966-10-24

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