US3188385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recording and reproducing system
Assignee: Sony Corp
•
Filing: 1962-06-15
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Granted: 1965-06-08
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Kihara Nobutoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:46
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/008; G11B5/00813; G11B5/00847; G11B5/0086; G11B5/48; G11B5/52; G11B5/53; H; H04; H04N; H04N5/00; H04N5/76; H04N5/78; H04N5/782; H04N5/7824; H04N5/7826; H04N5/78263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
THE METHOD OF TRANSDUCING A COMPOSITE SIGNAL INCLUDING A SIGNAL PART AND A SYNCHRONIZING PART OCCURRING ALTERNATELY IN TIME WHICH IS CHARACTERIZED BY MOVING A PAIR OF TRANSDUCER HEADS ALONG PATHS EXTENDING OBLIQUELY ACROSS RESPECTIVE FIRST AND SECOND RECORD ZONES OF A RECORD MEDIUM AT A SKEW ANGLE TO THE DIRECTION OF MOVEMENT OF THE RECORD MEDIUM, BRINGING A FIRST ONE OF THE HEADS INTO SCANNING RELATION TO THE FIRST ZONE FOR A FIRST PART OF EACH SCANNING CYCLE TO TRANSDUCE THE SYNCHRONIZING PART OF THE COMPOSITE SIGNAL AND BRINGING A SECOND ONE OF SAID HEADS INTO SCANNING RELATION TO THE SECOND ZONE DURING A SECOND PART OF EACH SCANNING CYCLE TO TRANSDUCE THE SIGNAL PART OF THE COMPOSITE SIGNAL.
Claim 2
Independent Claim
120 words
THE METHOD OF TRANSDUCING A COMPOSITE SIGNAL INCLUDING A SIGNAL PART AND A SYNCHRONIZING PART OCCURRING ALTERNATELY IN TIME WHICH IS CHARACTERIZED BY MOVING A PAIR OF TRANSDUCER HEADS ALONG PATHS EXTENDING OBLIQUELY ACROSS RESPECTIVE FIRST AND SECOND RECORD ZONES OF A RECORD MEDIUM AT A SKEW ANGLE TO THE DIRECTION OF MOVEMENT OF THE RECORD MEDIUM, BRINGING A FIRST ONE OF THE HEADS INTO SCANNING RELATION TO THE FIRST ZONE FOR A FIRST PART OF EACH SCANNING CYCLE TO TRANSDUCE THE SYNCHRONIZING PART OF THE COMPOSITE SIGNAL AND BRINGING A SECOND ONE OF SAID HEADS INTO SCANNING RELATION TO THE SECOND ZONE DURING A SECOND PART OF EACH SCANNING CYCLE TO TRANSDUCE THE SIGNAL PART OF THE COMPOSITE SIGNAL.
References Cited (Backward Citations)
US2965708A
Cited
US2915595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |