FR2442562A1 - PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals - Google Patents

PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals

Info

Publication number
FR2442562A1
FR2442562A1 FR7833284A FR7833284A FR2442562A1 FR 2442562 A1 FR2442562 A1 FR 2442562A1 FR 7833284 A FR7833284 A FR 7833284A FR 7833284 A FR7833284 A FR 7833284A FR 2442562 A1 FR2442562 A1 FR 2442562A1
Authority
FR
France
Prior art keywords
ntsc
circuit
phase shift
pal
shift circuit
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.)
Withdrawn
Application number
FR7833284A
Other languages
French (fr)
Inventor
Antoine Pery
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Priority to FR7833284A priority Critical patent/FR2442562A1/en
Publication of FR2442562A1 publication Critical patent/FR2442562A1/en
Withdrawn legal-status Critical Current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
    • H04N9/643—Hue control means, e.g. flesh tone control

Landscapes

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

Abstract

A PAL television receiver is modified to receive a video signal comprising on NTSC chrominance sub-carrier and has a variable phase shift circuit (100) for regulating the colour first connected between the video detector (20) and a sub-carrier filter (50). The circuit (100) comprises a series resistor (11) and shunt resonant circuit (17) switched into circuit by a series transistor (120) during the line suppression intervals to vary the phase of the colour burst signals relative to the modulated sub-carrier. The parallel resonant circuit (17) comprises a parallel inductance (13), resistance (14) and capacitance, the latter being formed by a fixed capacitance (15) and a series varactor (1b) controlled by a.d.c. voltage from a variable resistor (7). The transistor (120) is controlled by pulses from the sweep circuit.
FR7833284A 1978-11-24 1978-11-24 PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals Withdrawn FR2442562A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7833284A FR2442562A1 (en) 1978-11-24 1978-11-24 PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7833284A FR2442562A1 (en) 1978-11-24 1978-11-24 PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals

Publications (1)

Publication Number Publication Date
FR2442562A1 true FR2442562A1 (en) 1980-06-20

Family

ID=9215319

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7833284A Withdrawn FR2442562A1 (en) 1978-11-24 1978-11-24 PAL TV receiver with NTSC reception facility - includes variable phase shift circuit for adjusting tint of NTSC colour signals

Country Status (1)

Country Link
FR (1) FR2442562A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575549A (en) * 1969-09-17 1971-04-20 Zenith Radio Corp Hue control circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575549A (en) * 1969-09-17 1971-04-20 Zenith Radio Corp Hue control circuit

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Legal Events

Date Code Title Description
ST Notification of lapse