Patent US3231669A successfully refreshed from Google Patents.
US3231669A
Expired / Lapsed
US
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Control apparatus for television receiver
Assignee: Hazeltine Research Inc
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Filing: 1962-09-13
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Granted: 1966-01-25
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Stephen P Ronzheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:50
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/16; H04N5/18; H04N5/185; H04N5/44; H04N5/52; H04N5/53; H04N5/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
CONTROL APPARATUS FOR A TELEVISION RECEIVER OF THE TYPE ADAPTED TO RECEIVE A NEGATIVE MODULATION TELEVISION SIGNAL INCLUDING SYNCHRONIZING PULSES FOLLOWED BY A REFERENCE LEVEL HAVING AN AMPLITUDE DIFFERENT FROM THAT OF SAID PULSES AND HAVING IMAGE-REPRODUCING APPARATUS INCLUDING A SIGNAL-TRANSLATING CHANNEL AND AN IMAGEREPRODUCING DEVICE, SAID CONTROL APPARATUS COMPRISING: MEANS FOR SUPPLYING AT LEAST THE REFERENCE LEVEL OF SAID SIGNAL; HORIZONTAL DEFLECTION SIGNAL GENERATING MEANS FOR SUPPLYING FLYBACK PULSES; DIFFERENTIAL DELAY MEANS FOR DERIVING FROM EACH OF SAID FLYBACK PULSES AT LEAST TWO PULSES, WHEREIN THE PHASE OF ONE DERIVED PULSE IS DELAYED WITH RESPECT TO THE PHASE OF THE OTHER DERIVED PULSE;
Claim 2
Dependent Claim
104 words
CONTROL APPARATUS FOR A TELEVISION RECEIVER OF THE TYPE ADAPTED TO RECEIVE A NEGATIVE MODULATION TELEVISION SIGNAL INCLUDING SYNCHRONIZING PULSES FOLLOWED BY A REFERENCE LEVEL HAVING AN AMPLITUDE DIFFERENT FROM THAT OF SAID PULSES AND HAVING IMAGE-REPRODUCING APPARATUS INCLUDING A SIGNAL-TRANSLATING CHANNEL AND AN IMAGEREPRODUCING DEVICE, SAID CONTROL APPARATUS COMPRISING: MEANS FOR SUPPLYING AT LEAST THE REFERENCE LEVEL OF SAID SIGNAL; HORIZONTAL DEFLECTION SIGNAL GENERATING MEANS FOR SUPPLYING FLYBACK PULSES; DIFFERENTIAL DELAY MEANS FOR DERIVING FROM EACH OF SAID FLYBACK PULSES AT LEAST TWO PULSES, WHEREIN THE PHASE OF ONE DERIVED PULSE IS DELAYED WITH RESPECT TO THE PHASE OF THE OTHER DERIVED PULSE;
References Cited (Backward Citations)
US2227056A
Cited
US2875277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |