US3732360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television system having aperture correction
Assignee: US Philips Corp
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Filing: 1972-02-15
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Granted: 1973-05-08
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Expires: 1992-02-15
Abstract
Abstract In a color television camera system of the type having camera tubes for the production of red, green and blue color signals, contour signals derived from only one of the color signals are added to all of the color signals.
Inventors
- 👤 H Breimer
- 👤 S Tan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:14
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/10; H04N23/13; H04N5/00; H04N5/14; H04N5/20; H04N5/205; H04N5/208
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
A color television system comprising means for producing potential images corresponding to each of three color components of an optical image and converting said potential images into color component signals, means to derive a delayed signal from one of said color component signals by comparing the color component signals with each other at substantially adjacent points of the potential image to thereby obtain a contour signal associated with said color component signal, and adding said delayed signal to all said color component signals to sharpen transitions therein.
Claim 2
Dependent Claim
87 words
A color television system comprising means for producing potential images corresponding to each of three color components of an optical image and converting said potential images into color component signals, means to derive a delayed signal from one of said color component signals by comparing the color component signals with each other at substantially adjacent points of the potential image to thereby obtain a contour signal associated with said color component signal, and adding said delayed signal to all said color component signals to sharpen transitions therein.
Claim 3
Dependent Claim
32 words
A color television system as claimed in claim 1 wherein said three color signals comprise red, blue, and green signals respectively and the delayed signal is derived from the gree color signal.
Claim 4
Dependent Claim
28 words
A color television system as claimed in claim 1 wherein said output signal comprises separate color signals and the delayed signal is added to the individual color signals.
Claim 5
Dependent Claim
39 words
A color television system as claimed in claim 1 wherein said adding means adds said color signals to form said output signal and the delayed signal is added to the output signal comprising the sum of the color signals.
Claim 6
Dependent Claim
29 words
A color television system as claimed in claim 1 wherein said means for deriving a delayed comprises means for deriving both a horizontal and a vertical aperture correction signal.
Claim 7
Dependent Claim
46 words
A device as claimed in claim 5 wherein said delay means and further comprises means for obviating said delay including means for shifting the scan of the signal source from which the delay signal is derived wiTh respect to the scan of the remaining signal sources.
References Cited (Backward Citations)
US2634324A
Cited
DE1512352A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |