FR2390057A1 - - Google Patents
Info
- Publication number
- FR2390057A1 FR2390057A1 FR7812639A FR7812639A FR2390057A1 FR 2390057 A1 FR2390057 A1 FR 2390057A1 FR 7812639 A FR7812639 A FR 7812639A FR 7812639 A FR7812639 A FR 7812639A FR 2390057 A1 FR2390057 A1 FR 2390057A1
- Authority
- FR
- France
- Prior art keywords
- switching device
- diode
- generator
- modulator
- deflection current
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
- H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
- H03K4/62—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as a switching device
-
- 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
Générateur de courant de déviation de ligne et modulateur à diodes pour influencer l'intensité d'un courant de déviation sans influencer en même temps des tensions continues engendrées par le générateur. L'une des diodes du modulateur est shuntée par un dispositif commutateur commandable dont le sens de passage de courant est opposé à celui de ladite diode et que forment par exemple une bobine et un thyristor branchés en série. Ledit dispositif commutateur peut également faire office d'élément pour commander la modulation d'amplitude. Application aux récepteurs de télévision en couleur.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7704771A NL7704771A (nl) | 1977-05-02 | 1977-05-02 | Schakeling voor het opwekken van een zaagtand- vormige lijnafbuigstroom. |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2390057A1 true FR2390057A1 (fr) | 1978-12-01 |
Family
ID=19828468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7812639A Withdrawn FR2390057A1 (fr) | 1977-05-02 | 1978-04-28 |
Country Status (8)
Country | Link |
---|---|
US (1) | US4182978A (fr) |
JP (1) | JPS53136429A (fr) |
AU (1) | AU3556778A (fr) |
DE (1) | DE2817270A1 (fr) |
ES (1) | ES469325A1 (fr) |
FR (1) | FR2390057A1 (fr) |
IT (1) | IT1107341B (fr) |
NL (1) | NL7704771A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2394926A1 (fr) * | 1977-06-13 | 1979-01-12 | Indesit | Circuit de deviation horizontale pour recepteur de television |
FR2397753A1 (fr) * | 1977-07-14 | 1979-02-09 | Sony Corp | Circuit de commande du courant dans une bobine |
FR2421514A1 (fr) * | 1978-03-27 | 1979-10-26 | Sony Corp | Circuit de commande du courant traversant une bobine |
FR2468263A1 (fr) * | 1979-10-23 | 1981-04-30 | Thomson Brandt | Circuit de correction en mode commute de la distorsion de coussin est-ouest pour recepteur videofrequence |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4305023A (en) * | 1980-07-07 | 1981-12-08 | Rca Corporation | Raster distortion corrected deflection circuit |
US4607195A (en) * | 1983-03-21 | 1986-08-19 | U.S. Philips Corporation | Picture display device comprising a power supply circuit and a line deflection circuit |
GB8626316D0 (en) * | 1986-11-04 | 1986-12-03 | Rca Corp | E-w raster correction circuit |
US4794307A (en) * | 1986-11-04 | 1988-12-27 | Haferl Peter E | Raster distortion correction for a deflection circuit |
GB9124745D0 (en) * | 1991-11-21 | 1992-01-15 | Rca Thomson Licensing Corp | Inside barrel correction |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4122363A (en) * | 1976-05-14 | 1978-10-24 | Indesit Industria Elettrodomestici Italiana S.P.A. | Circuit arrangement for obtaining a sawtooth current in a coil |
-
1977
- 1977-05-02 NL NL7704771A patent/NL7704771A/xx not_active Application Discontinuation
-
1978
- 1978-04-17 US US05/896,498 patent/US4182978A/en not_active Expired - Lifetime
- 1978-04-20 DE DE19782817270 patent/DE2817270A1/de not_active Withdrawn
- 1978-04-28 IT IT67983/78A patent/IT1107341B/it active
- 1978-04-28 JP JP5019878A patent/JPS53136429A/ja active Pending
- 1978-04-28 FR FR7812639A patent/FR2390057A1/fr not_active Withdrawn
- 1978-04-28 AU AU35567/78A patent/AU3556778A/en active Pending
- 1978-04-29 ES ES469325A patent/ES469325A1/es not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2394926A1 (fr) * | 1977-06-13 | 1979-01-12 | Indesit | Circuit de deviation horizontale pour recepteur de television |
FR2397753A1 (fr) * | 1977-07-14 | 1979-02-09 | Sony Corp | Circuit de commande du courant dans une bobine |
FR2421514A1 (fr) * | 1978-03-27 | 1979-10-26 | Sony Corp | Circuit de commande du courant traversant une bobine |
FR2468263A1 (fr) * | 1979-10-23 | 1981-04-30 | Thomson Brandt | Circuit de correction en mode commute de la distorsion de coussin est-ouest pour recepteur videofrequence |
EP0028175A1 (fr) * | 1979-10-23 | 1981-05-06 | Thomson-Brandt | Circuit de correction de la distorsion de coussin est-ouest pour récepteur vidéofréquence |
Also Published As
Publication number | Publication date |
---|---|
AU3556778A (en) | 1979-11-01 |
NL7704771A (nl) | 1978-01-31 |
ES469325A1 (es) | 1979-01-16 |
IT1107341B (it) | 1985-11-25 |
JPS53136429A (en) | 1978-11-29 |
US4182978A (en) | 1980-01-08 |
IT7867983A0 (it) | 1978-04-28 |
DE2817270A1 (de) | 1978-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |