US3141064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic chroma control from chroma signal
Assignee: RCA Corp
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Filing: 1962-02-12
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Granted: 1964-07-14
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Macovski Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:36
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64; H04N9/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
IN A TELEVISION RECEIVER INCLUDING AN IMAGE REPRODUCING DEVICE AND ADAPTED TO RECEIVE A COLOR TELEVISION SIGNAL, SAID COLOR SIGNAL INCLUDING A LUMINANCE VIDEO SIGNAL COMPONENT, A CHROMINANCE VIDEO SIGNAL COMPONENT IN THE FORM OF A PHASE AND AMPLITUDE MODULATED SUBCARRIER WAVE OF A GIVEN FREQUENCY, DEFLECTION SYNCHRONIZING PULSES AND COLOR SYNCHRONIZING BURSTS COMPRISING SEVERAL CYCLES OF SAID SUBCARRIER WAVE FREQUENCY AND HAVING A PREDETERMINED AMPLITUDE RELATIONSHIP TO THE AMPLITUDE OF SAID DEFLECTION SYNCHRONIZING PULSES, THE COMBINATION COMPRISING: A CHROMINANCE SIGNAL CHANNEL FOR PROCESSING SUBSTANTIALLY ONLY SAID CHROMINANCE VIDEO SIGNAL COMPONENT AND INCLUDING A CHROMINANCE COMPONENT AMPLIFIER; AN AUTOMATIC COLOR CONTROL CIRCUIT COUPLED TO SAID CHROMINANCE SIGNAL CHANNEL FOR RESPONSE TO PEAKS OF SAID CHROMINANCE VIDEO SIGNAL TO PRODUCE A GAIN CONTROLLING SIGNAL VARYING IN AMPLITUDE IN ACCORDANCE WITH VARIATIONS OF THE MAGNITUDE OF SAID CHROMINANCE SIGNAL PEAKS; AND MEANS FOR IMPRESSING SAID GAIN CONTROLLING SIGNAL UPON SAID AMPLIFIER TO AUTOMATICALLY CONTROL ITS GAIN INVERSELY TO SAID VARIATIONS OF THE MAGNITUDE OF SAID CHROMINANCE SIGNAL PEAKS.
Claim 2
Dependent Claim
166 words
IN A TELEVISION RECEIVER INCLUDING AN IMAGE REPRODUCING DEVICE AND ADAPTED TO RECEIVE A COLOR TELEVISION SIGNAL, SAID COLOR SIGNAL INCLUDING A LUMINANCE VIDEO SIGNAL COMPONENT, A CHROMINANCE VIDEO SIGNAL COMPONENT IN THE FORM OF A PHASE AND AMPLITUDE MODULATED SUBCARRIER WAVE OF A GIVEN FREQUENCY, DEFLECTION SYNCHRONIZING PULSES AND COLOR SYNCHRONIZING BURSTS COMPRISING SEVERAL CYCLES OF SAID SUBCARRIER WAVE FREQUENCY AND HAVING A PREDETERMINED AMPLITUDE RELATIONSHIP TO THE AMPLITUDE OF SAID DEFLECTION SYNCHRONIZING PULSES, THE COMBINATION COMPRISING: A CHROMINANCE SIGNAL CHANNEL FOR PROCESSING SUBSTANTIALLY ONLY SAID CHROMINANCE VIDEO SIGNAL COMPONENT AND INCLUDING A CHROMINANCE COMPONENT AMPLIFIER; AN AUTOMATIC COLOR CONTROL CIRCUIT COUPLED TO SAID CHROMINANCE SIGNAL CHANNEL FOR RESPONSE TO PEAKS OF SAID CHROMINANCE VIDEO SIGNAL TO PRODUCE A GAIN CONTROLLING SIGNAL VARYING IN AMPLITUDE IN ACCORDANCE WITH VARIATIONS OF THE MAGNITUDE OF SAID CHROMINANCE SIGNAL PEAKS; AND MEANS FOR IMPRESSING SAID GAIN CONTROLLING SIGNAL UPON SAID AMPLIFIER TO AUTOMATICALLY CONTROL ITS GAIN INVERSELY TO SAID VARIATIONS OF THE MAGNITUDE OF SAID CHROMINANCE SIGNAL PEAKS.
References Cited (Backward Citations)
US2888514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |