US3414880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Source error correction for relatively moving signals
Assignee: International Business Machines Corp
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Filing: 1965-07-02
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Granted: 1968-12-03
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Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Robert B Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:14
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/16; G; G06; G06F; G06F11/00; G06F11/07; G06F11/14; G06F11/1402; G06F11/1405; G06F11/141; G11; G11B; G11B15/00; G11B15/18; G11B15/38; G11B17/00; G11B17/32; G11B20/00; G11B20/10; G11B20/18; H01P1/24; H01P1/26; H01P5/00; H01P5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN ERROR CONTROL SYSTEM FOR RECORDED SIGNALS COMPRISING A SURFACE FOR RECORDING SIGNALS, A TRANSDUCER FOR DAID SIGNALS, MEANS FOR SEPARATING SAID SURFACE AND SAID TRANSDUCER BY A NORMAL DISTANCE, PNEUMATIC CONTROL MEANS FOR CONTROLLING SAID SEPARATING MEANS TO OBTAIN SAID NORMAL DISTANCE OR A SMALLER DISTANCE, MEANS RESPONSIVE TO SIGNALS FROM SAID TRANSDUCER FOR DETECTING AN ERROR IN A DATA SIGNAL RECORDED ON SAID SURFACE, AND MEANS RESPONSIVE TO AN OUTPUT SIGNAL FROM SAID DETECTING MEANS, INDICATIVE OF AN ERROR, FOR ACTUATING SAID PNEUMATIC CONTROL MEANS TO OBTAIN SAID SMALLER, DISTANCE BETWEEN SAID SURFACE SAND SAID TRANSDUCER, WHEREBY ERROR CONTROL FOR RECORDED SIGNALS IS IMPROVED AT SAID SMALLER DISTANCE.
Claim 2
Dependent Claim
110 words
AN ERROR CONTROL SYSTEM FOR RECORDED SIGNALS COMPRISING A SURFACE FOR RECORDING SIGNALS, A TRANSDUCER FOR DAID SIGNALS, MEANS FOR SEPARATING SAID SURFACE AND SAID TRANSDUCER BY A NORMAL DISTANCE, PNEUMATIC CONTROL MEANS FOR CONTROLLING SAID SEPARATING MEANS TO OBTAIN SAID NORMAL DISTANCE OR A SMALLER DISTANCE, MEANS RESPONSIVE TO SIGNALS FROM SAID TRANSDUCER FOR DETECTING AN ERROR IN A DATA SIGNAL RECORDED ON SAID SURFACE, AND MEANS RESPONSIVE TO AN OUTPUT SIGNAL FROM SAID DETECTING MEANS, INDICATIVE OF AN ERROR, FOR ACTUATING SAID PNEUMATIC CONTROL MEANS TO OBTAIN SAID SMALLER, DISTANCE BETWEEN SAID SURFACE SAND SAID TRANSDUCER, WHEREBY ERROR CONTROL FOR RECORDED SIGNALS IS IMPROVED AT SAID SMALLER DISTANCE.
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) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |