WO1990003079A1 - Verfahren und schaltungsanordnung zum eliminieren lautstärkeabhängiger bildgrössenänderungen, insbesondere von farbfernsehgeräten mit 110°-ablenkungs-bildröhren - Google Patents
Verfahren und schaltungsanordnung zum eliminieren lautstärkeabhängiger bildgrössenänderungen, insbesondere von farbfernsehgeräten mit 110°-ablenkungs-bildröhren Download PDFInfo
- Publication number
- WO1990003079A1 WO1990003079A1 PCT/HU1989/000045 HU8900045W WO9003079A1 WO 1990003079 A1 WO1990003079 A1 WO 1990003079A1 HU 8900045 W HU8900045 W HU 8900045W WO 9003079 A1 WO9003079 A1 WO 9003079A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit
- compensation network
- supply voltage
- east
- horizontal deflection
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012937 correction Methods 0.000 claims abstract description 32
- 230000008859 change Effects 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000001419 dependent effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 11
- 230000001965 increasing effect Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- IHPYMWDTONKSCO-UHFFFAOYSA-N 2,2'-piperazine-1,4-diylbisethanesulfonic acid Chemical compound OS(=O)(=O)CCN1CCN(CCS(O)(=O)=O)CC1 IHPYMWDTONKSCO-UHFFFAOYSA-N 0.000 description 1
- 239000007990 PIPES buffer Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
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- 239000003086 colorant Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- 230000001960 triggered effect Effects 0.000 description 1
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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
- H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
- H04N3/223—Controlling dimensions
Definitions
- the invention relates to a method for eliminating volume-dependent changes in image size, in particular of color television sets with I10 ° deflection picture tubes, preferably for use in devices with high sound power, the circuits of the device being operated with supply voltages stabilized via switching power supplies, the pillow distortion of the 110 ° deflection
- the picture tube is set by active east-west raster correction.
- the supply voltage terminal of the vertical deflection circuit can be connected to the rectifier, which is connected to the line transformer winding of the horizontal deflection circuit.
- the most important advantage of the method according to the invention and the circuit arrangement according to the invention is that their use can reduce the volume-dependent change in image size to a minimum dimension that is no longer perceptible to the viewer. Another advantage is that the invention does not require any major intervention in the circuits of the device, but can be implemented by installing only a few simple components. The invention is explained in more detail below by means of examples with reference to the accompanying drawing.
- FIG. 5 shows a further embodiment of the active compensation network.
- 1 shows a general block diagram of the circuit arrangement according to the invention, according to which a supply voltage terminal 21 of a horizontal deflection circuit 2 is connected to a stabilized switching power supply 1.
- An east-west correction circuit 4 is connected to the horizontal deflection circuit 2.
- the potentiometer 44 had a value of 10 k0hm
- the resistor 45 connected in series with it had a value of 1.5 k0hm
- the Zener diode 51a was a diode of the ZY-120 type
- the resistor 51b had a value of 8.2 k0hm.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU453088A HU200049B (en) | 1988-09-02 | 1988-09-02 | Method and circuit arrangement for eliminating variation of picture size dependent on valume of 110 degree colour televisors |
| HU4530/88 | 1988-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1990003079A1 true WO1990003079A1 (de) | 1990-03-22 |
Family
ID=10968228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/HU1989/000045 WO1990003079A1 (de) | 1988-09-02 | 1989-09-01 | Verfahren und schaltungsanordnung zum eliminieren lautstärkeabhängiger bildgrössenänderungen, insbesondere von farbfernsehgeräten mit 110°-ablenkungs-bildröhren |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0386217A1 (cs) |
| CS (1) | CS509989A2 (cs) |
| DD (1) | DD284322A5 (cs) |
| HU (1) | HU200049B (cs) |
| WO (1) | WO1990003079A1 (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2319940A (en) * | 1996-11-27 | 1998-06-03 | Samsung Electronics Co Ltd | Controlling pincushion correction with brightness to avoid picture bending |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2455156A1 (de) * | 1973-11-21 | 1975-05-22 | Rca Corp | Zum zwecke konstanten gesamtstromverbrauchs kombinierte verstaerker fuer die vertikalablenkung und tonverstaerkung eines fernsehempfaengers |
| DE2449476B2 (de) * | 1974-10-19 | 1977-07-21 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Horizontalablenkschaltung fuer fernsehempfaenger |
| DE2918798A1 (de) * | 1979-05-10 | 1980-11-20 | Licentia Gmbh | Schaltung zur stabilisierung der bildbreite in einem fernsehempfaenger |
| DE3424032A1 (de) * | 1983-07-01 | 1985-01-10 | Rca Corp., New York, N.Y. | Geregelte stromversorgungs- und ablenkschaltung |
| DD227585A1 (de) * | 1984-10-17 | 1985-09-18 | Engels Fernsehgeraete Veb | Stabilisiertes sperrwandler-schaltnetzteil fuer fernsehempfaenger |
| US4692852A (en) * | 1986-06-25 | 1987-09-08 | Rca Corporation | Switching power supply with raster width stabilization |
-
1988
- 1988-09-02 HU HU453088A patent/HU200049B/hu not_active IP Right Cessation
-
1989
- 1989-09-01 WO PCT/HU1989/000045 patent/WO1990003079A1/de not_active Application Discontinuation
- 1989-09-01 CS CS895099A patent/CS509989A2/cs unknown
- 1989-09-01 EP EP19890910173 patent/EP0386217A1/de not_active Withdrawn
- 1989-09-01 DD DD33230789A patent/DD284322A5/de not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2455156A1 (de) * | 1973-11-21 | 1975-05-22 | Rca Corp | Zum zwecke konstanten gesamtstromverbrauchs kombinierte verstaerker fuer die vertikalablenkung und tonverstaerkung eines fernsehempfaengers |
| DE2449476B2 (de) * | 1974-10-19 | 1977-07-21 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Horizontalablenkschaltung fuer fernsehempfaenger |
| DE2918798A1 (de) * | 1979-05-10 | 1980-11-20 | Licentia Gmbh | Schaltung zur stabilisierung der bildbreite in einem fernsehempfaenger |
| DE3424032A1 (de) * | 1983-07-01 | 1985-01-10 | Rca Corp., New York, N.Y. | Geregelte stromversorgungs- und ablenkschaltung |
| DD227585A1 (de) * | 1984-10-17 | 1985-09-18 | Engels Fernsehgeraete Veb | Stabilisiertes sperrwandler-schaltnetzteil fuer fernsehempfaenger |
| US4692852A (en) * | 1986-06-25 | 1987-09-08 | Rca Corporation | Switching power supply with raster width stabilization |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2319940A (en) * | 1996-11-27 | 1998-06-03 | Samsung Electronics Co Ltd | Controlling pincushion correction with brightness to avoid picture bending |
| US5920157A (en) * | 1996-11-27 | 1999-07-06 | Samsung Electronics Co., Ltd. | Circuit and method for compensating for fluctuations in high voltage of fly back transformer for semiwide-screen television receiver |
| GB2319940B (en) * | 1996-11-27 | 2000-11-29 | Samsung Electronics Co Ltd | Picture stabilising circuit for semiwide-screen television receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| DD284322A5 (de) | 1990-11-07 |
| CS509989A2 (en) | 1991-12-17 |
| EP0386217A1 (de) | 1990-09-12 |
| HU200049B (en) | 1990-03-28 |
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