Patent US3290435A successfully refreshed from Google Patents.
US3290435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television reproducing system
Assignee: Sony Corp
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Filing: 1963-10-04
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Granted: 1966-12-06
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Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Shimada Satoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:13
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN A COLOR TELEVISION SYSTEM, MEANS FOR SUPPLYING A COMPOSITE COLOR TELEVISION SIGNAL INCLUDING A LUMINANCE COMPONENT AND COLOR COMPONENTS ON PHASE OF A SUB-CARRIER WAVE, MEANS FOR GENERATING A CONTROL SIGNAL AT THE FREQUENCY OF THE SUB-CARRIER WAVE AND SYNCHRONIZED THEREWITH, A REPRODUCING TUBE HAVING COLOR CONTROL MEANS RESPONSIVE TO SAID CONTROL SIGNAL TO PRODUCE MAIN COLORS IN CERTAIN PORTIONS OF EACH CYCLE OF SAID CONTROL SIGNAL AND MIXED COLORS INTERMEDIATE SAID MAIN COLORS IN OTHER PORTIONS OF EACH CYCLE, MEANS FOR APPLYING TO SAID TUBE A KEYING SIGNAL HAVING PULSES THEREIN FOR REDUCING BRIGHTNESS DURING SAID OTHER PORTIONS OF EACH CYCLE OF THE CONTROL SIGNAL, A BIASING CIRCUIT FOR ESTABLISHING A CERTAIN SIGNAL LEVEL, AND MEANS COUPLED TO SAID BIASING CIRCUIT AND RESPONSIVE TO SAID COLOR COMPONENTS OF SAID COMPOSITE SIGNAL FOR INCREASING THE AMPLITUDE OF SAID KEYING SIGNAL IN PROPORTION TO THE AMOUNT BY WHICH THE AMPLITUDE OF SAID COLOR COMPONENTS EXCEED SAID CERTAIN SIGNAL LEVEL.
Claim 2
Dependent Claim
159 words
IN A COLOR TELEVISION SYSTEM, MEANS FOR SUPPLYING A COMPOSITE COLOR TELEVISION SIGNAL INCLUDING A LUMINANCE COMPONENT AND COLOR COMPONENTS ON PHASE OF A SUB-CARRIER WAVE, MEANS FOR GENERATING A CONTROL SIGNAL AT THE FREQUENCY OF THE SUB-CARRIER WAVE AND SYNCHRONIZED THEREWITH, A REPRODUCING TUBE HAVING COLOR CONTROL MEANS RESPONSIVE TO SAID CONTROL SIGNAL TO PRODUCE MAIN COLORS IN CERTAIN PORTIONS OF EACH CYCLE OF SAID CONTROL SIGNAL AND MIXED COLORS INTERMEDIATE SAID MAIN COLORS IN OTHER PORTIONS OF EACH CYCLE, MEANS FOR APPLYING TO SAID TUBE A KEYING SIGNAL HAVING PULSES THEREIN FOR REDUCING BRIGHTNESS DURING SAID OTHER PORTIONS OF EACH CYCLE OF THE CONTROL SIGNAL, A BIASING CIRCUIT FOR ESTABLISHING A CERTAIN SIGNAL LEVEL, AND MEANS COUPLED TO SAID BIASING CIRCUIT AND RESPONSIVE TO SAID COLOR COMPONENTS OF SAID COMPOSITE SIGNAL FOR INCREASING THE AMPLITUDE OF SAID KEYING SIGNAL IN PROPORTION TO THE AMOUNT BY WHICH THE AMPLITUDE OF SAID COLOR COMPONENTS EXCEED SAID CERTAIN SIGNAL LEVEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |