US3087121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal controlled oscillator
Assignee: Consolidated Electrodynamics Corp
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Filing: 1961-06-29
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Granted: 1963-04-23
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Norton W Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:50
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
APPARATUS FOR DEVELOPING AN ALTERNATING CURRENT SIGNAL HAVING A FREQUENCY WHICH IS DIRECTLY PROPORTIONAL TO THE MAGNITUDE OF AN INPUT SIGNAL APPLIED THERETO COMPRISING A CONTROLLABLE FREQUENCY SIGNAL SOURCE FOR GENERATING A SIGNAL AT ITS OUTPUT HAVING A FREQUENCY WHICH IS SUBSTANTIALLY PROPORTIONAL TO THE MAGNITUDE OF A SIGNAL APPLIED TO ITS INPUT, NEGATIVE FEEDBACK MEANS COUPLED BETWEEN THE OUTPUT AND INPUT OF SAID CONTROLLABLE FREQUENCY SIGNAL SOURCE, A FIXED FREQUENCY SIGNAL SOURCE FOR GENERATING A SIGNAL HAVING A FIXED FREQUENCY, MEANS COUPLED TO SAID FIXED FREQUENCY SIGNAL SOURCE FOR DEVELOPING A DIRECT CURRENT SIGNAL HAVING A MAGNITUDE WHICH IS DIRECTLY PROPORTIONAL TO THE FIXED FREQUENCY, SAID DIRECT CURRENT SIGNAL HAVING A POLARITY WHICH IS OPPOSITE TO THE NEGATIVE FEEDBACK SIGNAL, AND MEANS FOR ADDING THE DIRECT CURRENT SIGNAL WITH THE NEGATIVE FEEDBACK SIGNAL AT THE INPUT OF THE CONTROLLABLE FREQUENCY SIGNAL SOURCE.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |