FR2374806A1 - PROCESS FOR MIXING SECAM COMPOSITE VIDEO SIGNALS - Google Patents

PROCESS FOR MIXING SECAM COMPOSITE VIDEO SIGNALS

Info

Publication number
FR2374806A1
FR2374806A1 FR7737714A FR7737714A FR2374806A1 FR 2374806 A1 FR2374806 A1 FR 2374806A1 FR 7737714 A FR7737714 A FR 7737714A FR 7737714 A FR7737714 A FR 7737714A FR 2374806 A1 FR2374806 A1 FR 2374806A1
Authority
FR
France
Prior art keywords
mixing
video signals
composite video
amplitude modulated
secam
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
FR7737714A
Other languages
French (fr)
Other versions
FR2374806B1 (en
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2374806A1 publication Critical patent/FR2374806A1/en
Application granted granted Critical
Publication of FR2374806B1 publication Critical patent/FR2374806B1/fr
Granted 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
    • H04N9/74—Circuits for processing colour signals for obtaining special effects
    • H04N9/76—Circuits for processing colour signals for obtaining special effects for mixing of colour signals

Landscapes

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

Abstract

Procédé pour le mélange de signaux vidéo composites SECAM, dans lequel la composante de chrominance modulée en fréquence de chaque signal à mélanger est séparée de la composante de luminance modulée en amplitude, puis modulée en amplitude. Le multiplexage en fréquence des composantes de luminance et de chrominance modulées en amplitude permet leur addition sur une voie. Après le mélange, le composante de chrominance modulée en amplitude est reconvertie avec modulation en fréquence SECAM, puis superposée à la composante de luminance.A method for mixing SECAM composite video signals, wherein the frequency modulated chrominance component of each signal to be mixed is separated from the amplitude modulated luminance component and then amplitude modulated. The frequency multiplexing of the amplitude modulated luminance and chrominance components allows their addition on a channel. After mixing, the amplitude modulated chrominance component is reconverted with SECAM frequency modulation, then superimposed on the luminance component.

FR7737714A 1976-12-14 1977-12-14 PROCESS FOR MIXING SECAM COMPOSITE VIDEO SIGNALS Granted FR2374806A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762656467 DE2656467C3 (en) 1976-12-14 1976-12-14 Method for mixing color video signals of the SECAM standard

Publications (2)

Publication Number Publication Date
FR2374806A1 true FR2374806A1 (en) 1978-07-13
FR2374806B1 FR2374806B1 (en) 1984-10-19

Family

ID=5995426

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737714A Granted FR2374806A1 (en) 1976-12-14 1977-12-14 PROCESS FOR MIXING SECAM COMPOSITE VIDEO SIGNALS

Country Status (7)

Country Link
CA (1) CA1098205A (en)
DD (1) DD133186A5 (en)
DE (1) DE2656467C3 (en)
FR (1) FR2374806A1 (en)
GB (1) GB1542357A (en)
HU (1) HU179126B (en)
SU (1) SU803875A3 (en)

Also Published As

Publication number Publication date
DD133186A5 (en) 1978-12-13
DE2656467A1 (en) 1978-06-22
HU179126B (en) 1982-08-28
SU803875A3 (en) 1981-02-07
DE2656467C3 (en) 1980-02-28
FR2374806B1 (en) 1984-10-19
CA1098205A (en) 1981-03-24
DE2656467B2 (en) 1979-06-21
GB1542357A (en) 1979-03-14

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Legal Events

Date Code Title Description
ST Notification of lapse