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FR2387552A1 - Circuit pour engendrer un signal periodique en forme de parabole - Google Patents

Circuit pour engendrer un signal periodique en forme de parabole

Info

Publication number
FR2387552A1
FR2387552A1 FR7810776A FR7810776A FR2387552A1 FR 2387552 A1 FR2387552 A1 FR 2387552A1 FR 7810776 A FR7810776 A FR 7810776A FR 7810776 A FR7810776 A FR 7810776A FR 2387552 A1 FR2387552 A1 FR 2387552A1
Authority
FR
France
Prior art keywords
circuit
periodic signal
parable
generate
signal
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Withdrawn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
FR7810776A
Other languages
English (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.)
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
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2387552A1 publication Critical patent/FR2387552A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K6/00—Manipulating pulses having a finite slope and not covered by one of the other main groups of this subclass
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
    • H03K4/04—Generating pulses having essentially a finite slope or stepped portions having parabolic shape
    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

Circuit qui, par élévation au carré d'un signal variant en dents de scie, permet d'obtenir un signal périodique en forme de parabole, utilisé par exemple pour la commande du modulateur est-ouest équipant les récepteurs de télévision en couleur et avec lequel on réduit l'amplitude d'un signal perturbateur qui se produit durant le retour.
FR7810776A 1977-04-14 1978-04-12 Circuit pour engendrer un signal periodique en forme de parabole Withdrawn FR2387552A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7704062A NL7704062A (nl) 1977-04-14 1977-04-14 Schakeling voor het opwekken van een periodiek paraboolvormig signaal.

Publications (1)

Publication Number Publication Date
FR2387552A1 true FR2387552A1 (fr) 1978-11-10

Family

ID=19828348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810776A Withdrawn FR2387552A1 (fr) 1977-04-14 1978-04-12 Circuit pour engendrer un signal periodique en forme de parabole

Country Status (8)

Country Link
US (1) US4216392A (fr)
JP (1) JPS53128930A (fr)
AU (1) AU3497678A (fr)
DE (1) DE2815028C2 (fr)
ES (1) ES468715A1 (fr)
FR (1) FR2387552A1 (fr)
IT (1) IT1108601B (fr)
NL (1) NL7704062A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273497A1 (fr) * 1986-12-01 1988-07-06 Koninklijke Philips Electronics N.V. Circuit pour engendrer un signal périodique essentiellement parabolique
EP0658045A2 (fr) * 1993-12-13 1995-06-14 Thomson Consumer Electronics, Inc. Synchronisation d'un circuit de correction de forme d'onde de déflection

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127217A (en) * 1978-03-27 1979-10-03 Sony Corp Load driver circuit
FI63845C (fi) * 1981-10-14 1983-08-10 Salora Oy Saett att bilda en av horisontal- och vertikalavlaenkningen ho ett bildroer beroende varierande fokuseringsspaenning sa mtoppling foer genomfoerande av saettet
US4459614A (en) * 1981-12-24 1984-07-10 Ampex Corporation Rotation-free electrical focussing circuit for television image tubes
AU574060B2 (en) * 1983-02-02 1988-06-30 N.V. Philips Gloeilampenfabrieken Field deflection circuit with multiplier
GB2160080B (en) * 1984-06-05 1988-01-20 Motorola Inc Timebase circuit
US4733140A (en) * 1987-01-06 1988-03-22 Zenith Electronics Corporation Side pincushion correction circuit with automatic picture tracking
JPH03188709A (ja) * 1989-12-19 1991-08-16 Hitachi Ltd のこぎり波発生回路
US5034664A (en) * 1990-04-27 1991-07-23 Thomson Consumer Electronics, Inc. Parabola generators with auxiliary reset function
US6014049A (en) * 1995-04-28 2000-01-11 Delco Electronics Corp. Reduced RFI power pulse modulator
WO1997050244A1 (fr) * 1996-06-26 1997-12-31 Philips Electronics N.V. Production d'une tension de focalisation
US7102302B2 (en) * 2002-04-19 2006-09-05 Thomson Licensing Waveform generator for controlling an electron beam in a cathode ray tube

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181079A (en) * 1959-12-18 1965-04-27 Philips Corp Series energized transistorised amplifier having a high input resistance
NL282965A (fr) * 1962-09-06
US3394266A (en) * 1964-10-27 1968-07-23 Rca Corp Direct current electrical neuron circuit
DE1956140A1 (de) * 1969-11-07 1971-05-13 Licentia Gmbh Schaltung zur Ost-West-Korrektur von Kissenverzeichnungen in Fernsehempfaengern
BE758414A (fr) * 1969-11-04 1971-05-03 Philips Nv Circuit de commande destine a un cicuit de deviation d'un dispositif dereproduction d'images
US3684896A (en) * 1970-08-26 1972-08-15 Meridian Industries Inc Flasher circuit with short protection
DE2130542A1 (de) * 1971-06-19 1972-12-21 Licentia Gmbh Schaltung zur Speisung einer Ablenkspule fuer eine Kathoden-strahlroehre,insbesondere fuer die Vertikalablenkung,mit vier eine Brueckenschaltung bildenden Endstufentransistoren
US3740611A (en) * 1971-07-28 1973-06-19 Motorola Inc Vertical deflection waveform generator
DE2400824A1 (de) * 1974-01-09 1975-07-17 Licentia Gmbh Vertikalablenk-verstaerker mit gegenkopplung in fernsehempfaengern mit zwischenzeilenverfahren
DE2558554A1 (de) * 1975-12-24 1977-06-30 Philips Patentverwaltung Schaltungsanordnung zum erzeugen eines parabelfoermigen signals aus einer saegezahnfoermigen steuergroesse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273497A1 (fr) * 1986-12-01 1988-07-06 Koninklijke Philips Electronics N.V. Circuit pour engendrer un signal périodique essentiellement parabolique
EP0658045A2 (fr) * 1993-12-13 1995-06-14 Thomson Consumer Electronics, Inc. Synchronisation d'un circuit de correction de forme d'onde de déflection
EP0658045A3 (fr) * 1993-12-13 1995-11-29 Thomson Consumer Electronics Synchronisation d'un circuit de correction de forme d'onde de déflection.
TR28116A (tr) * 1993-12-13 1996-03-01 Thomson Consumer Electronics Sapma dalga bicimi düzeltme devresinin zamanlanmasi.
US5596250A (en) * 1993-12-13 1997-01-21 Thomson Consumer Electronics, Inc. Timing of deflection waveform correction circuit

Also Published As

Publication number Publication date
IT7867805A0 (it) 1978-04-11
DE2815028A1 (de) 1978-10-19
AU3497678A (en) 1979-10-18
US4216392A (en) 1980-08-05
NL7704062A (nl) 1978-10-17
ES468715A1 (es) 1978-12-16
IT1108601B (it) 1985-12-09
DE2815028C2 (de) 1982-03-04
JPS53128930A (en) 1978-11-10

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Legal Events

Date Code Title Description
ST Notification of lapse