US3586764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
T.v. camera employing a liminance pickup tube and a color pickup tube for multiplexed red and blue signals
Assignee: General Electric Co
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Filing: 1969-02-25
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Granted: 1971-06-22
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Expires: 1989-02-25
Abstract
Abstract A color television camera system and method using one luminance pickup tube and one color pickup tube. An input image beam is split between the luminance tube and the optics for the color pickup tube. The color portion of the input beam is split in a Kosters prism to provide two output beams, one of which is inverted relative to the input beam. The output beams form two side-by-side images on the color tube. A video scan line sequentially covers one of the two images in a forward direction and the other in a reverse direction to generate a linesequential video signal. A sequencer receives this video signal and provides continuous output video signals representing two colors.
Inventors
- 👤 Max H Diehl
- 👤 Halfon N Hamaoui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:47
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
170 words
A color television camera system comprising: a. means for receiving an input image beam of light and for separating the input beam into a first image beam and a second image beam, said second image beam being inverted with respect to said first image beam, b. means for emphasizing a first color in the first beam and for emphasizing a second color in the second beam, c. a pickup unit, including a single face means, for receiving said first image beam and said second image beam in two sideby-side arEas of said face, and d. means for deriving a video output signal from said face by repetitively first scanning a first one of said two areas in one direction and then scanning the other one of said two areas in the opposite direction. CM,2Tem according to claim 1 wherein: a. said receiving means further comprises multielement prism means for separating said input beam, and b. said emphasizing means further comprises a dichroic coating between the elements of said prism means.
Claim 2
Dependent Claim
99 words
A system according to claim 1 further comprising: a. means responsive to said video output signal for deriving a delayed video signal corresponding to said video output signal delayed by the amount of time between the beginning of the scanning of one of said two areas and the beginning of the scanning of the next one of said two areas, and b. gating means responsive to said video output signal and to said delayed video signal for deriving a first continuous signal corresponding to said first color and for deriving a second continuous signal corresponding to said second color.
Claim 3
Dependent Claim
27 words
A system according to claim 3 further comprising a second pickup unit for receiving said input image beam and for generating a luminance signal in response thereto.
Claim 4
Independent Claim
100 words
A method of sequencing video signals representing related images of different colors comprising: a. generating first and second image beams of light respectively carrying first and second images, b. directing both said image beams at a single face of a single pickup tube to form said first and second images side-by-side on said face in such a manner that one image is inverted with respect to the other image, and c. scanning said face by scanning said images sequentially to generate a single video output signal containing, in successive separate portions of the signal, video information from said images sequentially.
Claim 5
Independent Claim
100 words
A method of sequencing video signals representing related images of different colors comprising: a. generating first and second image beams of light respectively carrying first and second images, b. directing both said image beams at a single face of a single pickup tube to form said first and second images side-by-side on said face in such a manner that one image is inverted with respect to the other image, and c. scanning said face by scanning said images sequentially to generate a single video output signal containing, in successive separate portions of the signal, video information from said images sequentially.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |