US3588334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video recording system and method
Assignee: IIT Research Institute
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Filing: 1967-04-03
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Granted: 1971-06-28
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Expires: 1987-04-03
Abstract
Abstract A MAGNETIC TRANSDUCER SYSTEM AND METHOD FOR VARYING THE SPEED OF ACTION OF A RECORDED VIDEO SIGNAL INCLUDING A VIDEO CAMERA WITH A SELECTABLE SCAN RATE, A MAGNETIC RECORDER FOR RECORDING THE VIDEO SIGNALS FROM THE CAMERA AT A GIVEN SPEED, A VARIABLE SPEED DRIVE FOR THE RECORDER FOR PLAYBACK OF THE RECORDED VIDEO SIGNALS AT A SECOND SPEED SUCH THAT THE PLAYBACK SCAN RATES ARE THE STANDARD RATES FOR DISPLAY BY A COMMERCIAL TELEVISION RECEIVER. OR INTEGRAL MULTIPLES OR SUBMULTIPLES OF SUCH STANDARD RATES. A ROTATABLE HEAD RECORDER OR PLAYBACK DEVICE WITH STATIONARY SCANNING DURING THE OTHER OF PLAYBACK OR RECORDING MAY BE EMPLOYED.
Inventors
- 👤 Marvin Camras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:48
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; H04N5/783
Claims Analysis
Total Claims: 0
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |