US3352977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical scan transducer apparatus utilizing time sharing head to minimize distortionduring edge changeover
Assignee: RCA Corp
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Filing: 1967-02-15
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Granted: 1967-11-14
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Expires: 1987-02-15
Abstract
No abstract record available.
Inventors
- 👤 Fred E Shashoua
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:33
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
IN A SYSTEM FOR RECORDING ELECTRICAL SIGNALS INCLUDING A PLURALITY OF RECORDING DEVICES, MEANS MOVING SAID DEVICES IN A CIRCULAR PATH ABOUT A PREDETERMINED AXIS, MEANS MOVING A RECORD MEDIUM ALONG A PATH OBLIQUE TO SAID AXIS AND IN A HELICAL PATH AROUND THE CIRCULAR PATH OF MOVEMENT OF SAID DEVICES WITH EACH OF SAID DEVICES SCANNING OVER A DIFFERENT SUCCESSION OF TRACKS EXTENDING DIAGONALLY ACROSS SAID MEDIUM, SAID SYSTEM COMPRISING, IN COMBINATION, MEANS TO CONTINUOUSLY APPLY A PLURALITY OF SIGNALS TO ALL BUT ONE OF SAID DEVICES WITH A DIFFERENT SIGNAL BEING APPLIED INDIVIDUALLY TO EACH DEVICE, MEANS TO PRODUCE A FURTHER SIGNAL COMPOSED OF REGULARLY OCCURRING INTERVALS OF EACH OF SAID PLURALITY OF SIGNALS, AND MEANS TO APPLY SAID FURTHER SIGNAL TO SAID ONE DEVIVE.
Claim 2
Dependent Claim
127 words
IN A SYSTEM FOR RECORDING ELECTRICAL SIGNALS INCLUDING A PLURALITY OF RECORDING DEVICES, MEANS MOVING SAID DEVICES IN A CIRCULAR PATH ABOUT A PREDETERMINED AXIS, MEANS MOVING A RECORD MEDIUM ALONG A PATH OBLIQUE TO SAID AXIS AND IN A HELICAL PATH AROUND THE CIRCULAR PATH OF MOVEMENT OF SAID DEVICES WITH EACH OF SAID DEVICES SCANNING OVER A DIFFERENT SUCCESSION OF TRACKS EXTENDING DIAGONALLY ACROSS SAID MEDIUM, SAID SYSTEM COMPRISING, IN COMBINATION, MEANS TO CONTINUOUSLY APPLY A PLURALITY OF SIGNALS TO ALL BUT ONE OF SAID DEVICES WITH A DIFFERENT SIGNAL BEING APPLIED INDIVIDUALLY TO EACH DEVICE, MEANS TO PRODUCE A FURTHER SIGNAL COMPOSED OF REGULARLY OCCURRING INTERVALS OF EACH OF SAID PLURALITY OF SIGNALS, AND MEANS TO APPLY SAID FURTHER SIGNAL TO SAID ONE DEVIVE.
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |