FR2393487A1 - Multi-standard line scanning stage for TV set - has voltage dependent tangent correction capacitor with bias varied by standards change switch - Google Patents

Multi-standard line scanning stage for TV set - has voltage dependent tangent correction capacitor with bias varied by standards change switch

Info

Publication number
FR2393487A1
FR2393487A1 FR7816130A FR7816130A FR2393487A1 FR 2393487 A1 FR2393487 A1 FR 2393487A1 FR 7816130 A FR7816130 A FR 7816130A FR 7816130 A FR7816130 A FR 7816130A FR 2393487 A1 FR2393487 A1 FR 2393487A1
Authority
FR
France
Prior art keywords
capacitor
change switch
line scanning
voltage
voltage dependent
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
FR7816130A
Other languages
French (fr)
Other versions
FR2393487B3 (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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2393487A1 publication Critical patent/FR2393487A1/en
Application granted granted Critical
Publication of FR2393487B3 publication Critical patent/FR2393487B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/27—Circuits special to multi-standard receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

A line output stage transistor (2) is used. It has a line frequency control voltage fed to its base electrode and is connected by way of a winding (3) of the line output transformer and a smoothing resistor (4) and capacitor (5) to a supply voltage (U1) which is selected by a standards selection switch (6). The transistor is also connected to a flyback capacitor (7), the line deflection coils (8), a tangent capacitor (11) and a circuit for the correction of east-west pincushion distortion. A transformer (9) serves to balance the deflection current in the two deflection coils to produce optimal convergence. The tangent correction capacitor capacitance is dependent on the applied voltage, and by variation of the supply voltage to the transistor through the standards changeover switch, an appropriate biassing voltage is selected.
FR7816130A 1977-05-31 1978-05-30 Multi-standard line scanning stage for TV set - has voltage dependent tangent correction capacitor with bias varied by standards change switch Granted FR2393487A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772724556 DE2724556A1 (en) 1977-05-31 1977-05-31 LINE DISPLAY CIRCUIT FOR A MULTI-STANDARD TELEVISION RECEIVER

Publications (2)

Publication Number Publication Date
FR2393487A1 true FR2393487A1 (en) 1978-12-29
FR2393487B3 FR2393487B3 (en) 1981-02-13

Family

ID=6010319

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816130A Granted FR2393487A1 (en) 1977-05-31 1978-05-30 Multi-standard line scanning stage for TV set - has voltage dependent tangent correction capacitor with bias varied by standards change switch

Country Status (2)

Country Link
DE (1) DE2724556A1 (en)
FR (1) FR2393487A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201110A1 (en) * 1985-03-06 1986-11-12 Koninklijke Philips Electronics N.V. Picture display device including a line synchronizing circuit and a line deflection circuit
EP0240141A2 (en) * 1986-02-26 1987-10-07 RCA Thomson Licensing Corporation S-correction circuit for a video display

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201110A1 (en) * 1985-03-06 1986-11-12 Koninklijke Philips Electronics N.V. Picture display device including a line synchronizing circuit and a line deflection circuit
EP0240141A2 (en) * 1986-02-26 1987-10-07 RCA Thomson Licensing Corporation S-correction circuit for a video display
EP0240141A3 (en) * 1986-02-26 1991-01-23 RCA Thomson Licensing Corporation S-correction circuit for a video display

Also Published As

Publication number Publication date
DE2724556A1 (en) 1978-12-07
FR2393487B3 (en) 1981-02-13

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Legal Events

Date Code Title Description
ST Notification of lapse