US3213192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape recording and reproducing system
Assignee: Ampex Corp
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Filing: 1961-09-12
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Granted: 1965-10-19
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Expires: 1981-09-12
Abstract
No abstract record available.
Inventors
- 👤 Peter W Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:59
CPC Classifications
H; H04; H04N; H04N11/00; H04N11/06; H04N11/12; H04N11/14; C; C08; C08F; C08F291/00; H04N5/00; H04N5/76; H04N5/91; H04N5/93; H04N5/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A SYSTEM FOR REDUCING TIME BASE ERROR IN REPRODUCED COLOR TELEVISION SIGNALS CONTAINING COLOR BURST SIGNALS AT A SPECIFIED FREQUENCY INCLUDING MEANS RESPONSIVE TO THE COLOR TELEVISION SIGNALS FOR EXTRACTING THE COLOR BURST FROM THE SIGNALS MEANS FOR GENERATING AT STABLE REFERENCE SIGNAL WHICH IS INTEGRALLY RELATED IN FREQUENCY TO THE SPECIFIED FREQUENCY OF THE COLOR BURST, MEANS RESPONSIVE TO A SELECTED CYCLIC CHARACTERISTIC IN THE STABLE REFERENCE SIGNAL FOR PROVIDING AN AMPLITUDE VARYING PHASE REFERENCE, MEANS RESPONSIVE TO A SELECTED POINT IN THE CYLIC CHARACTERISTIC OF THE COLOR BURST FOR GENERATING A SAMPLING PULSE REPRESENTATIVE OF THE PHAE OF THE COLOR BURST, MEANS RESPONSIVE TO THE AMPLITUDE OF THE PHASE REFERNECE DURING THE OCFURRRENCE OF A SAMPLING PULSE FOR DEVELOPING A PHASE ERROR SIGNAL REPRESENTATIVE OF THE TIME BASE ERROR OF THE COLOR BURST, AND ELECTRONICALLY VARIABLE DELAY LINE MEANS
Claim 2
Independent Claim
141 words
A SYSTEM FOR REDUCING TIME BASE ERROR IN REPRODUCED COLOR TELEVISION SIGNALS CONTAINING COLOR BURST SIGNALS AT A SPECIFIED FREQUENCY INCLUDING MEANS RESPONSIVE TO THE COLOR TELEVISION SIGNALS FOR EXTRACTING THE COLOR BURST FROM THE SIGNALS MEANS FOR GENERATING AT STABLE REFERENCE SIGNAL WHICH IS INTEGRALLY RELATED IN FREQUENCY TO THE SPECIFIED FREQUENCY OF THE COLOR BURST, MEANS RESPONSIVE TO A SELECTED CYCLIC CHARACTERISTIC IN THE STABLE REFERENCE SIGNAL FOR PROVIDING AN AMPLITUDE VARYING PHASE REFERENCE, MEANS RESPONSIVE TO A SELECTED POINT IN THE CYLIC CHARACTERISTIC OF THE COLOR BURST FOR GENERATING A SAMPLING PULSE REPRESENTATIVE OF THE PHAE OF THE COLOR BURST, MEANS RESPONSIVE TO THE AMPLITUDE OF THE PHASE REFERNECE DURING THE OCFURRRENCE OF A SAMPLING PULSE FOR DEVELOPING A PHASE ERROR SIGNAL REPRESENTATIVE OF THE TIME BASE ERROR OF THE COLOR BURST, AND ELECTRONICALLY VARIABLE DELAY LINE MEANS
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |