Patent US3105963A successfully refreshed from Google Patents.
US3105963A
Expired / Lapsed
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Transducer positioning system
Assignee: International Business Machines Corp
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Filing: 1959-02-27
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Granted: 1963-10-01
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Louis D Stevens
- 👤 John B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/48; G11B5/54; G11B5/55; G11B5/5521; G11B5/5526; G11B5/553; G11B5/5547
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
APPARATUS FOR POSITIONING A TRANSDUCER AT A SELECTED ONE OF A PLURALITY OF ADJACENT TRACKS OF MAGNETIC DATA BIT MANIFESTATIONS COMPRISING: A TRANSDUCER CAPABLE OF REPRODUCING MAGNETIC DATA BIT MANIFESTATIONS TO BE UTILIZED TO TRANSMIT THE INFORMATION CONTAINED THEREIN AND AS AN INDICATION OF THE TRACK POSITION, COUNTER MEANS SETTABLE ACCORDING TO THE POSITION OF SAID SELECTED ONE OF SAID TRACKS, DRIVING MEANS FOR DRIVING SAID TRANSDUCER TRANSVERSELY OVER SAID TRACKS, SAID TRANSDUCER PRODUCING A SERIES OF DATA MANIFESTATIONS EACH TIME SAID TRANSDUCER CROSSES ONE OF SAID TRACKS, INTEGRATOR MEANS TO PRODUCE A SIGNAL FROM SAID DATA MANIFESTATIONS PRODUCED BY SAID TRANSDUCER, MEANS FOR SUPPLYING SAID SIGNALS FROM SAID INTEGRATOR MEANS TO SAID COUNTER MEANS FOR COMPARISON WITH THE SETTING OF SAID COUNTER, AND MEANS FOR SUPPLYING A DRIVING SIGNAL TO SAID DRIVING MEANS, SAID DRIVING SIGNAL HAVING AN AMPLITUDE WHICH IS A MEASURE OF THE DIFFERENCE RESULTING FROM SAID COMPARISON TO POSITION SAID TRANSDUCER AT THE SELECTED ONE OF SAID TRACKS INDICATED BY THE SETTING OF SAID COUNTER MEANS.
Claim 2
Dependent Claim
170 words
APPARATUS FOR POSITIONING A TRANSDUCER AT A SELECTED ONE OF A PLURALITY OF ADJACENT TRACKS OF MAGNETIC DATA BIT MANIFESTATIONS COMPRISING: A TRANSDUCER CAPABLE OF REPRODUCING MAGNETIC DATA BIT MANIFESTATIONS TO BE UTILIZED TO TRANSMIT THE INFORMATION CONTAINED THEREIN AND AS AN INDICATION OF THE TRACK POSITION, COUNTER MEANS SETTABLE ACCORDING TO THE POSITION OF SAID SELECTED ONE OF SAID TRACKS, DRIVING MEANS FOR DRIVING SAID TRANSDUCER TRANSVERSELY OVER SAID TRACKS, SAID TRANSDUCER PRODUCING A SERIES OF DATA MANIFESTATIONS EACH TIME SAID TRANSDUCER CROSSES ONE OF SAID TRACKS, INTEGRATOR MEANS TO PRODUCE A SIGNAL FROM SAID DATA MANIFESTATIONS PRODUCED BY SAID TRANSDUCER, MEANS FOR SUPPLYING SAID SIGNALS FROM SAID INTEGRATOR MEANS TO SAID COUNTER MEANS FOR COMPARISON WITH THE SETTING OF SAID COUNTER, AND MEANS FOR SUPPLYING A DRIVING SIGNAL TO SAID DRIVING MEANS, SAID DRIVING SIGNAL HAVING AN AMPLITUDE WHICH IS A MEASURE OF THE DIFFERENCE RESULTING FROM SAID COMPARISON TO POSITION SAID TRANSDUCER AT THE SELECTED ONE OF SAID TRACKS INDICATED BY THE SETTING OF SAID COUNTER 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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |