US3584140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Registration system for color television camera
Assignee: Sony Corp
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Filing: 1970-02-18
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Granted: 1971-06-08
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Expires: 1990-02-18
Abstract
Abstract A color television camera including a first image pickup tube producing a luminance signal and a second image pickup tube producing a color video signal, is provided with a registration system that comprises a circuit for producing a composite luminance signal from the color video signal, a circuit for comparing that composite luminance signal with the luminance signal produced by the first tube and centering circuit for registering the signals from the two tubes when the comparison of the luminance signals indicates a difference therebetween.
Inventors
- 👤 Yasuharu Kubota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:05
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10; H04N23/13; H04N23/15
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
In combination with a color television camera including a first image pickup tube onto which an image of an object to be televised is projected, circuit means for deriving a first luminance signal from said first tube and which corresponds to said image projected thereon, a second image pickup tube onto which there is projected a color-separated image of said object and means for deriving from said second tube a plurality of color video signals based on said color-separated image; a system for obtaining registration of pictures to be reproduced from said luminance signal and said color video signals comprising circuit means for producing a second composite luminance signal from the output of said second image pickup tube, circuit means for detecting a difference between said first and second luminance signals, and centering means associated with one of said image pickup tubes and being operative thereon to eliminate any detected difference between said first and second luminance signals.
Claim 2
Dependent Claim
158 words
In combination with a color television camera including a first image pickup tube onto which an image of an object to be televised is projected, circuit means for deriving a first luminance signal from said first tube and which corresponds to said image projected thereon, a second image pickup tube onto which there is projected a color-separated image of said object and means for deriving from said second tube a plurality of color video signals based on said color-separated image; a system for obtaining registration of pictures to be reproduced from said luminance signal and said color video signals comprising circuit means for producing a second composite luminance signal from the output of said second image pickup tube, circuit means for detecting a difference between said first and second luminance signals, and centering means associated with one of said image pickup tubes and being operative thereon to eliminate any detected difference between said first and second luminance signals.
Claim 3
Dependent Claim
40 words
The combination according to claim 1, in which said circuit means for detecting a difference between said first and second luminance signals and means to produce an error signal in response to a detected difference between the compared luminance signals.
Claim 4
Dependent Claim
14 words
The combination according to claim 2, further comprising means to display said error signal.
Claim 5
Dependent Claim
67 words
The combination according to claim 1, in which each of said image pickup tubes has deflection means to cause scanning movement of an electron beam therein, and said centering means is connected with said deflection means for one of said image pickup tubes to vary the centered position of the respective beam in the sense for eliminating any detected difference between said first and second luminance signals.
Claim 6
Dependent Claim
48 words
The combination according to claim 4, in which said deflection means includes horizontal and vertical deflection coils to receive horizontal and vertical sweep signals, and said centering means is connected with at least one of said coils and is operative to supply an adjustable controlled DC current thereto.
Claim 7
Dependent Claim
56 words
The combination according to claim 4, in which said deflection means includes horizontal and vertical deflection coils to receive horizontal and vertical sweep signals and a centering coil on one of said image pickup tubes, and said centering means is connecteD with said centering coil and is operative to supply an adjustable controlled DC current thereto.
References Cited (Backward Citations)
US3288921A
Cited
US3340356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |