US3225145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic transducer
Assignee: RCA Corp
•
Filing: 1960-11-01
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Granted: 1965-12-21
•
Expires: 1980-11-01
Abstract
No abstract record available.
Inventors
- 👤 Warren Henry Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:08
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/335
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A MAGNETIC TRANSDUCER FOR TRANSDUCING A MAGNETIC SIGNAL INTO AN ELECTRICAL SIGNAL WHICH COMPRISES, A CORE STRUCTURE OF MAGNETIC MATERIAL HAVING A FIRST LOOP CHARACTERIZED BY A FIRST MAGNETIZATION CURVE AND A SECOND LOOP CHARACTERIZED BY A SECOND MAGNETIZATION CURVE DIFFERENT FROM SAID FIRST MAGNETIZATION CURVE, SAID LOOPS INCLUDING A COMMON SIGNAL GAP ACROSS WHICH SAID MAGNETIC SIGNAL CAN BE APPLIED, SAID MAGNETIZATION CURVES EACH HAVING A NON-LINEAR REGION BETWEEN REGIONS CORRESPONDING TO SATURATED AND UNSATURATED CONDITIONS OF SAID CORE STRUCTURE, MEANS FOR APPLYING A FIRST MAGNETOMOTIVE FORCE TO SAID FIRST LOOP TO BIAS SAID CORE STRUCTURE IN SAID NONLINEAR REGION OF SAID FIRST MAGNETIZATION CURVE AND FOR APPLYING A SECOND MAGNETOMOTIVE FORCE DIFFERENT IN INTENSITY FROM SAID FIRST MAGNETOMOTIVE FORCE TO SAID SECOND LOOP TO BIAS SAID CORE STRUCTURE IN SAID NON-LINEAR REGION OF SAID SECOND MAGNETIZATION CURVE, AND AN OUTPUT WINDING LINKING SAID LOOPS AND RESPONSIVE TO THE SIGNAL CONDITION ESTABLISHED IN SAID LOOPS BY SAID MAGNETOMOTIVE FORCES AND SAID MAGNETIC SIGNAL.
Claim 2
Dependent Claim
164 words
A MAGNETIC TRANSDUCER FOR TRANSDUCING A MAGNETIC SIGNAL INTO AN ELECTRICAL SIGNAL WHICH COMPRISES, A CORE STRUCTURE OF MAGNETIC MATERIAL HAVING A FIRST LOOP CHARACTERIZED BY A FIRST MAGNETIZATION CURVE AND A SECOND LOOP CHARACTERIZED BY A SECOND MAGNETIZATION CURVE DIFFERENT FROM SAID FIRST MAGNETIZATION CURVE, SAID LOOPS INCLUDING A COMMON SIGNAL GAP ACROSS WHICH SAID MAGNETIC SIGNAL CAN BE APPLIED, SAID MAGNETIZATION CURVES EACH HAVING A NON-LINEAR REGION BETWEEN REGIONS CORRESPONDING TO SATURATED AND UNSATURATED CONDITIONS OF SAID CORE STRUCTURE, MEANS FOR APPLYING A FIRST MAGNETOMOTIVE FORCE TO SAID FIRST LOOP TO BIAS SAID CORE STRUCTURE IN SAID NONLINEAR REGION OF SAID FIRST MAGNETIZATION CURVE AND FOR APPLYING A SECOND MAGNETOMOTIVE FORCE DIFFERENT IN INTENSITY FROM SAID FIRST MAGNETOMOTIVE FORCE TO SAID SECOND LOOP TO BIAS SAID CORE STRUCTURE IN SAID NON-LINEAR REGION OF SAID SECOND MAGNETIZATION CURVE, AND AN OUTPUT WINDING LINKING SAID LOOPS AND RESPONSIVE TO THE SIGNAL CONDITION ESTABLISHED IN SAID LOOPS BY SAID MAGNETOMOTIVE FORCES AND SAID MAGNETIC 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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |