US3129283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television tuning indicator
Assignee: Admiral Corp
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Filing: 1958-07-30
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Granted: 1964-04-14
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Expires: 1978-07-30
Abstract
No abstract record available.
Inventors
- 👤 Tarantur Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:45
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A TELEVISION RECEIVER COMPRISING CIRCUIT MEANS FOR REPRODUCING A COMPOSITE VIDEO SIGNAL AND A PICTURE TUBE DEVICE INCLUDING A CATHODE AND A CONTROL GRID AND EMPLOYING AN INTERCARRIER SOUND SYSTEM OF THE TYPE IN WHICH THE FREQUENCY RESPONSE CURVE AT THE OUTPUT OF SAID CIRCUIT MEANS IS CHARACTERIZED BY A RESPONSE OF A LARGE MAGNITUDE WITH RESPECT TO THE VIDEO SIGNAL AND A NULL WITH RESPECT TO THE SOUND SIGNAL, MEANS FOR SELECTIVELY RESPONDING TO THE INTERCARRIER SOUND SIGNAL TO PRODUCE A D.-C. SIGNAL WHOSE MAGNITUDE IS PROPORTIONAL TO THE MAGNITUDE OF SAID INTERCARRIER SIGNAL, AND MEANS FOR SUPPLYING SAID D.-C. SIGNAL ACROSS THE CATHODE AND CONTROL GRID OF SAID PICTURE TUBE TO PRODUCE THE BRIGHTEST PICTURE WHEN THE MAGNITUDE OF SAID INTERCARRIER SOUND SIGNAL IS AT ITS NULL POINT.
Claim 2
Dependent Claim
131 words
IN A TELEVISION RECEIVER COMPRISING CIRCUIT MEANS FOR REPRODUCING A COMPOSITE VIDEO SIGNAL AND A PICTURE TUBE DEVICE INCLUDING A CATHODE AND A CONTROL GRID AND EMPLOYING AN INTERCARRIER SOUND SYSTEM OF THE TYPE IN WHICH THE FREQUENCY RESPONSE CURVE AT THE OUTPUT OF SAID CIRCUIT MEANS IS CHARACTERIZED BY A RESPONSE OF A LARGE MAGNITUDE WITH RESPECT TO THE VIDEO SIGNAL AND A NULL WITH RESPECT TO THE SOUND SIGNAL, MEANS FOR SELECTIVELY RESPONDING TO THE INTERCARRIER SOUND SIGNAL TO PRODUCE A D.-C. SIGNAL WHOSE MAGNITUDE IS PROPORTIONAL TO THE MAGNITUDE OF SAID INTERCARRIER SIGNAL, AND MEANS FOR SUPPLYING SAID D.-C. SIGNAL ACROSS THE CATHODE AND CONTROL GRID OF SAID PICTURE TUBE TO PRODUCE THE BRIGHTEST PICTURE WHEN THE MAGNITUDE OF SAID INTERCARRIER SOUND SIGNAL IS AT ITS NULL POINT.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |