US3249695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus for a television receiver
Assignee: Hazeltine Research Inc
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Filing: 1962-09-13
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Granted: 1966-05-03
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Bernard D Loughlin
- 👤 Stephen P Ronzheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:24
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N5/52; H04N5/53; H04N5/14; H04N5/16; H04N5/18; H04N5/185; H04N5/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 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 OF AMPLITUDE DIFFERENT FROM THAT OF SAID PULSES AND HAVING IMAGE-REPRODUCING APPARATUS INCLUDING A SIGNAL-TRANSLATING CHANNEL AND AN IMAGE-REPRODUCING DEVICE, SAID CONTROL APPARATUS COMPRISING: MEANS FOR SUPPLYING AT LEAST THE REFERENCE LEVEL OF SAID SIGNAL; HORIZONTAL DEFLECTION APPARATUS HAVING AN OUTPUT STAGE AND IN WHICH FLYBACK PULSES ARE DERIVED; MEANS, INCLUDING A RINGING CIRCUIT COUPLED IN THE CURRENT PATH OF SAID OUTPUT STAGE AND EXCITED BY A SUDDEN DECREASE OF CURRENT IN SAID STAGE, FOR DERIVING AN OSCILLATORY SIGNAL OF FREQUENCY DIFFERENT FROM THE OSCILLATION FREQUENCY OF SAID FLYBACK PULSES; AND MEANS RESPONSIVE TO SAID REFERENCE LEVEL AND TO
Claim 2
Dependent Claim
124 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 OF AMPLITUDE DIFFERENT FROM THAT OF SAID PULSES AND HAVING IMAGE-REPRODUCING APPARATUS INCLUDING A SIGNAL-TRANSLATING CHANNEL AND AN IMAGE-REPRODUCING DEVICE, SAID CONTROL APPARATUS COMPRISING: MEANS FOR SUPPLYING AT LEAST THE REFERENCE LEVEL OF SAID SIGNAL; HORIZONTAL DEFLECTION APPARATUS HAVING AN OUTPUT STAGE AND IN WHICH FLYBACK PULSES ARE DERIVED; MEANS, INCLUDING A RINGING CIRCUIT COUPLED IN THE CURRENT PATH OF SAID OUTPUT STAGE AND EXCITED BY A SUDDEN DECREASE OF CURRENT IN SAID STAGE, FOR DERIVING AN OSCILLATORY SIGNAL OF FREQUENCY DIFFERENT FROM THE OSCILLATION FREQUENCY OF SAID FLYBACK PULSES; AND MEANS RESPONSIVE TO SAID REFERENCE LEVEL AND TO
References Cited (Backward Citations)
GB762685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |