Patent US1869134A successfully refreshed from Google Patents.
US3086089A
Expired / Lapsed
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Method and means for reproducing signals from a very slow moving tape
Assignee: SoundScriber Corp
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Filing: 1959-03-11
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Granted: 1963-04-16
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Expires: 1979-03-11
Abstract
No abstract record available.
Inventors
- 👤 William H Lyon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:19
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/35; G11B5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN AN APPARATUS FOR REPRODUCING SIGNALS FROM A VERY SLOW MOVING TAPE, THE COMBINATION OF AN ELECTRICAL TRANSDUCER ROTATABLY SUPPORTED FOR CONTACT WITH A MAGNETIC TAPE TO SENSE SIGNALS RECORDED ON THE TAPE AS THE TAPE IS MOVED PAST SAID TRANSDUCER, MEANS FOR ROTATIVELY OSCILLATING SAID TRANSDUCER THROUGH A SMALL AMPLITUDE AT A FREQUENCY GREATER THAN THE FREQUENCY OF THE RECORDED SIGNALS SO AS TO PRODUCE AN ELECTRICAL OUTPUT FROM SAID TRANSDUCER CONSISTING OF A CARRIER VOLTAGE OF THE SAME FREQUENCY AS THE FREQUENCY OF THE OSCILLATION OF SAID TRANSDUCER MODULATED BY THE SIGNAL TO BE REPRODUCED, AND MEANS FOR DEMODULATING SAID MODULATED CARRIER FOR ELECTRICALLY REPRODUCING THE RECORDED SIGNAL.
Claim 2
Dependent Claim
110 words
IN AN APPARATUS FOR REPRODUCING SIGNALS FROM A VERY SLOW MOVING TAPE, THE COMBINATION OF AN ELECTRICAL TRANSDUCER ROTATABLY SUPPORTED FOR CONTACT WITH A MAGNETIC TAPE TO SENSE SIGNALS RECORDED ON THE TAPE AS THE TAPE IS MOVED PAST SAID TRANSDUCER, MEANS FOR ROTATIVELY OSCILLATING SAID TRANSDUCER THROUGH A SMALL AMPLITUDE AT A FREQUENCY GREATER THAN THE FREQUENCY OF THE RECORDED SIGNALS SO AS TO PRODUCE AN ELECTRICAL OUTPUT FROM SAID TRANSDUCER CONSISTING OF A CARRIER VOLTAGE OF THE SAME FREQUENCY AS THE FREQUENCY OF THE OSCILLATION OF SAID TRANSDUCER MODULATED BY THE SIGNAL TO BE REPRODUCED, AND MEANS FOR DEMODULATING SAID MODULATED CARRIER FOR ELECTRICALLY REPRODUCING THE RECORDED SIGNAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |