US3718872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic modulating system
Assignee: Mishima Kosan Co Ltd
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Filing: 1971-06-07
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Granted: 1973-02-27
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Expires: 1991-06-07
Abstract
Abstract CONSISTING OF TWO RESONANT CIRCUITS COMPOSED OF THE NONLINEAR INDUCTOR AND A CONDENSER. THE OUTPUT SIGNAL OF THE DIFFERENTIAL OUTPUT CIRCUIT CAN BE CONTROLLED ACCORDING TO THE INPUT SIGNAL SO ASD TO MODULATE THE OUTPUT SIGNAL WITH HIGH SENSITIVITY BY MEANS OF A VERY SMALL INPUT SIGNAL. A MAGNETIC MODULATING SYSTEM HAS A MAGNETIC CORE AND TWO RESONANT CIRCUITS WHICH ARE SUPPLIED WITH AN ALTERNATING EXCITING CURRENT AND AN INPUT SIGNAL. AN ALTERNATING DRIVING MAGNETIC FIELD IS APPLIED TO THE MAGNETIC CORE AND AN ALTERNATING BIAS CURRENT IS APPLIED TO A NONLINEAR INDUCTANCE ELEMENT OF A DIFFERENTIAL OUTPUT CIRCUIT
Inventors
- 👤 S Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:51
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/08; H03C1/10
Claims Analysis
Total Claims: 0
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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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |