Patent US3260966A successfully refreshed from Google Patents.
US3260966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bias controlled amplitude modulator
Assignee: Midwestern Instruments Inc
•
Filing: 1963-09-16
•
Granted: 1966-07-12
•
Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Iii Michael James Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:39
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN COMBINATION WITH AN ACTIVE ELECTRICAL ELEMENT, CIRCUITRY COUPLED WITH SAID ELEMENT FOR APPLYING AN OPERATING VOLTAGE THERETO, AND MEANS COUPLED WITH SAID ELEMENT FOR APPLYING AN ELECTRICAL CARRIER SIGNAL THERETO, MODULATION APPARATUS INCLUDING: A VARIABLE IMPEDANCE DEVICE WHOSE IMPEDANCE IS RESPONSIVE TO AN ELECTRICAL MODULATING SIGNAL APPLIED THERETO; MEANS COUPLING SAID DEVICE SAID CIRCUITRY TO CONTROL SAID OPERATING VOLTAGE, AND THEREBY THE OUTPUT OF SAID ELEMENT; AND MEANS COUPLED WITH SAID DEVICE FOR APPLYING SAID MODULATING SIGNAL THERETO TO CONTROL THE IMPEDANCE OF THE DEVICE, WHEREBY TO PROVIDE AN OUTPUT SIGNAL FROM SAID ELEMENT HAVING AN AMPLITUDE RESPONSIVE TO CHANGES IN THE AMPLITUDE OF SAID MODULATING SIGNAL, SAID IMPEDANCE HAVING A VALUE, WHEN THE AMPLITUDE OF SAID MODULATING SIGNAL IS ZERO, FOR RENDERING SAID ELEMENT RESPONSIVE TO ONLY A PREDETERMINED PORTION OF
Claim 2
Dependent Claim
133 words
IN COMBINATION WITH AN ACTIVE ELECTRICAL ELEMENT, CIRCUITRY COUPLED WITH SAID ELEMENT FOR APPLYING AN OPERATING VOLTAGE THERETO, AND MEANS COUPLED WITH SAID ELEMENT FOR APPLYING AN ELECTRICAL CARRIER SIGNAL THERETO, MODULATION APPARATUS INCLUDING: A VARIABLE IMPEDANCE DEVICE WHOSE IMPEDANCE IS RESPONSIVE TO AN ELECTRICAL MODULATING SIGNAL APPLIED THERETO; MEANS COUPLING SAID DEVICE SAID CIRCUITRY TO CONTROL SAID OPERATING VOLTAGE, AND THEREBY THE OUTPUT OF SAID ELEMENT; AND MEANS COUPLED WITH SAID DEVICE FOR APPLYING SAID MODULATING SIGNAL THERETO TO CONTROL THE IMPEDANCE OF THE DEVICE, WHEREBY TO PROVIDE AN OUTPUT SIGNAL FROM SAID ELEMENT HAVING AN AMPLITUDE RESPONSIVE TO CHANGES IN THE AMPLITUDE OF SAID MODULATING SIGNAL, SAID IMPEDANCE HAVING A VALUE, WHEN THE AMPLITUDE OF SAID MODULATING SIGNAL IS ZERO, FOR RENDERING SAID ELEMENT RESPONSIVE TO ONLY A PREDETERMINED PORTION OF
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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |