US3210464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television recording and reproduction using variable delay line for phase correctionof video signal
Assignee: Robert Bosch Fernsehanlagen GmbH
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Filing: 1962-02-05
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Granted: 1965-10-05
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Expires: 1982-02-05
Abstract
No abstract record available.
Inventors
- 👤 Richard V Felgel-Farnholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:19
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/93; H04N5/95
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A METHOD FOR MAGNETICALLY RECORDING TELEVISION INPUT SIGNALS ON A MAGNETIZABLE RECORD CARRIER BY MEANS OF ROTATING TRANSDUCER MEANS, COMPRISING THE STEPS OF APPLYING A TELEVISION SIGNAL INCLUDING HORIZONTAL SYNCHRONIZATION PULSE SEQUENCES TO SAID TRANSDUCER MEANS FOR RECORDING THE SIGNAL ON THE MAGNETIZABLE RECORD CARRIER; DERIVING FROM SAID SYNCHRONIZATION PULSE SEQUENCES A REFERENCE FREQUENCY; COMPARING THE PHASE OF SAID REFERENCE FREQUENCY WITH THE PHASE POSITION OF SAID ROTARY TRANSDUCER MEANS AND OBTAINING A CONTROL VOLTAGE CORRESPONDING TO
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |