US3431497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discontinuous forward automatic gain control
Assignee: United States Department of the Air Force
•
Filing: 1964-09-10
•
Granted: 1969-03-04
•
Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 Harold J Manley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:50
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3036; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE IMPROVEMENT IN A MULTIFREQUENCY PULSE RECEIVER HAVING A SIGNAL PROPORTIONAL TO THE PRODUCT OF THE INDIVIDUAL SIGNAL LEVELS O FA RECEIVED SIGNAL PAIR DURING THE TIME OF SIGNAL COINCIDENCE, AND ANOTHER SIGNAL PROPORTIONAL TO THE SUM OF THE INDIVIDUAL SIGNAL LEVELS OF SAID PAIR DURING THE TIME OF COINCIDENCE, SAID IMPROVEMENT COMPRISING; MEANS FOR VARIABLY AMPLIFYING THE PRODUCT SIGNAL; MEANS RESPONSIVE TO THE SUM SIGNAL COOPERATING WITH THE VARIABLE AMPLIFYING MEANS FOR VARYING THE AMPLIFICATION OF THE SAID PRODUCT SIGNAL IN INVERSE PROPORTION TO THE LEVEL OF THE SAID SUM SIGNAL; THRESHOLD MEANS RESPONSIVE TO THE AMPLIFIED PRODUCT SIGNAL PROVIDING AN OUTPUT WHEN SAID AMPLIFIED PRODUCT SIGNAL EXCEEDS A PREDETERMINED VALUE OF SIGNAL THRESHOLD.
Claim 2
Dependent Claim
115 words
THE IMPROVEMENT IN A MULTIFREQUENCY PULSE RECEIVER HAVING A SIGNAL PROPORTIONAL TO THE PRODUCT OF THE INDIVIDUAL SIGNAL LEVELS O FA RECEIVED SIGNAL PAIR DURING THE TIME OF SIGNAL COINCIDENCE, AND ANOTHER SIGNAL PROPORTIONAL TO THE SUM OF THE INDIVIDUAL SIGNAL LEVELS OF SAID PAIR DURING THE TIME OF COINCIDENCE, SAID IMPROVEMENT COMPRISING; MEANS FOR VARIABLY AMPLIFYING THE PRODUCT SIGNAL; MEANS RESPONSIVE TO THE SUM SIGNAL COOPERATING WITH THE VARIABLE AMPLIFYING MEANS FOR VARYING THE AMPLIFICATION OF THE SAID PRODUCT SIGNAL IN INVERSE PROPORTION TO THE LEVEL OF THE SAID SUM SIGNAL; THRESHOLD MEANS RESPONSIVE TO THE AMPLIFIED PRODUCT SIGNAL PROVIDING AN OUTPUT WHEN SAID AMPLIFIED PRODUCT SIGNAL EXCEEDS A PREDETERMINED VALUE OF SIGNAL THRESHOLD.
References Cited (Backward Citations)
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Cited
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Cited
US3036211A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |