Patent US3610242A successfully refreshed from Google Patents.
US3100816A
Expired / Lapsed
US
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Timing control for signal reproducing systems
Assignee: Ampex Corp
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Filing: 1962-01-02
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Granted: 1963-08-13
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Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles H Coleman
- 👤 Peter W Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:30
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/93; H04N5/95; H04N9/00; H04N9/79; H04N9/87; H04N9/89
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A SIGNAL REPRODUCING SYSTEM PROVIDING A COMPLEX SIGNAL CONTAINING PHASE-RELATED COMPONENTS OF A SUBCARRIER HAVING A SELECTED NOMINAL FREQUENCY, A SYSTEM FOR LIMITING THE PHASE DEVIATION OF THE COMPLEX SIGNAL INCLUDING MEANS RESPONSIVE TO THE SUBCARRIER FOR PROVIDING PHASEREPRESENTATIVE PULSES, MEANS PROVIDING A STABLE REFERENCE SIGNAL AT THE SELECTED NOMINAL FREQUENCY, MEANS RESPONSIVE TO THE REFERENCE SIGNAL FOR PROVIDING A TIME-VARYING REFERENCE WAVE HAVING A PERIOD TWICE THAT OF THE REFERENCE SIGNAL, SWITCHING MEANS RESPONSIVE TO THE REFERENCE SIGNAL FOR SELECTING ALTERNATE ONES OF THE PHASE-REPRESENTATIVE PULSES AS SAMPLING PULSES, AND MEANS FOR COMPARING THE PHASE RELATION OF THE REFERENCE WAVE AND THE SAMPLING PULSES TO GENERATE AN ERROR SIGNAL, AND MEANS FOR ADJUSTING THE PHASE OF THE COMPLEX SIGNAL IN RESPONSE TO THE ERROR SIGNAL.
Claim 2
Dependent Claim
127 words
IN A SIGNAL REPRODUCING SYSTEM PROVIDING A COMPLEX SIGNAL CONTAINING PHASE-RELATED COMPONENTS OF A SUBCARRIER HAVING A SELECTED NOMINAL FREQUENCY, A SYSTEM FOR LIMITING THE PHASE DEVIATION OF THE COMPLEX SIGNAL INCLUDING MEANS RESPONSIVE TO THE SUBCARRIER FOR PROVIDING PHASEREPRESENTATIVE PULSES, MEANS PROVIDING A STABLE REFERENCE SIGNAL AT THE SELECTED NOMINAL FREQUENCY, MEANS RESPONSIVE TO THE REFERENCE SIGNAL FOR PROVIDING A TIME-VARYING REFERENCE WAVE HAVING A PERIOD TWICE THAT OF THE REFERENCE SIGNAL, SWITCHING MEANS RESPONSIVE TO THE REFERENCE SIGNAL FOR SELECTING ALTERNATE ONES OF THE PHASE-REPRESENTATIVE PULSES AS SAMPLING PULSES, AND MEANS FOR COMPARING THE PHASE RELATION OF THE REFERENCE WAVE AND THE SAMPLING PULSES TO GENERATE AN ERROR SIGNAL, AND MEANS FOR ADJUSTING THE PHASE OF THE COMPLEX SIGNAL IN RESPONSE TO THE ERROR SIGNAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |