Patent US3723804A successfully refreshed from Google Patents.
US3723804A
Expired / Lapsed
US
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Vertical deflection device utilizing rectifying means for deflection control
Assignee: Panasonic Holdings Corp
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Filing: 1970-12-07
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Granted: 1973-03-27
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Expires: 1990-12-07
Abstract
Abstract A vertical deflection device which comprises deflection-signal generating means for producing deflection signals to be applied to a cathode-ray tube, rectifying means to rectify the deflection signals, and controlling means to control the deflection-signal generating means by the rectified voltages of the deflection signals, whereby an operation for correcting the deflection signal to a substantially S-shaped signal in order to prevent tangent distortions from appearing for the reason that a projecting screen of the cathode-ray tube is not spherical, may be easily effected.
Inventors
- 👤 N Yasumatsuya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:43
CPC Classifications
H; H03; H03K; H03K6/00; H03K6/04; C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/19; D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/467; H03K4/00; H03K4/06; H03K4/08; H03K4/48; H03K4/60; H03K4/69; H03K4/72; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/22; H04N3/23; H04N3/233; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
A vertical deflection device comprising means to detect a saw-tooth wave signal to be applied to a cathode-ray tube, the center of said saw-tooth wave having a zero potential, means to full wave rectify a signal detected by said detecting means, and means to apply a voltage obtained by the rectification to a circuit for generating said saw-tooth wave signal, thereby to control said circuit.
Claim 2
Dependent Claim
65 words
A vertical deflection device comprising means to detect a saw-tooth wave signal to be applied to a cathode-ray tube, the center of said saw-tooth wave having a zero potential, means to full wave rectify a signal detected by said detecting means, and means to apply a voltage obtained by the rectification to a circuit for generating said saw-tooth wave signal, thereby to control said circuit.
Claim 3
Dependent Claim
47 words
A vertical deflection device wherein a rectifier circuit is connected in parallel with a deflecting coil of a cathode-ray tube, and wherein means is provided which applies an output from said rectifier circuit to a circuit for generating a saw-tooth wave signal, thereby to control said circuit.
Claim 4
Dependent Claim
47 words
A vertical deflection device wherein a rectifier circuit is connected in parallel with a deflecting coil of a cathode-ray tube, and wherein means is provided which applies an output from said rectifier circuit to a circuit for generating a saw-tooth wave signal, thereby to control said circuit.
Claim 5
Dependent Claim
49 words
A vertical deflection device according to claim 1, wherein said detecting means comprises a separate winding for detection of said saw-tooth wave signal, which winding is wound in a drive transformer for driving an output transistor connected to said cathode-ray tube and for amplification of said saw-tooth wave signal.
Claim 6
Dependent Claim
38 words
A vertical deflection device according to claim 1, wherein said detecting means comprises a separate winding for detection of said saw-tooth wave signal, which winding is wound in a vertical deflection output transformer connected to said cathode-ray tube.
Claim 7
Dependent Claim
44 words
A vertical deflection device according to claim 1, wherein said means to control said circuit for generation of said saw-tooth wave signal comprises an integrating capacitor constituting said circuit, one terminal of said capacitor having an output signal of said rectifying means applied thereto.
Claim 8
Dependent Claim
17 words
A vertical deflection device according to claim 2, wherein said rectifier circuit comprises a bridge rectifier circuit.
References Cited (Backward Citations)
US3488554A
Cited
US3604974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |