US3448451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar sweep integrator circuit
Assignee: Lanteris Space LLC
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Filing: 1959-06-25
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Granted: 1969-06-03
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Expires: 1979-06-25
Abstract
No abstract record available.
Inventors
- 👤 Jack E Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:03
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/292; G01S7/2923; G01S7/2926; G01S7/2806; G06; G06G; G06G7/00; G06G7/12; G06G7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A SWEEP INTEGRATOR CIRCUIT COMPRISING A DELAY LINE, MEANS COUPLING THE OUTPUT OF SAID DELAY LINE TO ITS INPUT TO FORM A RECIRCULATORY LOOP HAVING A GAIN GREATER THAN UNITY FOR SIGNALS WITHIN A CERTAIN FREQUENCY BAND AND BELOW A CERTAIN AMPLITUDE LEVEL AT A SELECTED POINT IN SAID LOOP, WHEREBY A CARRIER WAVE HAVING A FREQUENCY WITHIN SAID BAND AT SAID SELECTED POINT IS CAUSED TO CIRCULATE IN SAID LOOP, SAID LAST-MENTIONED MEANS INCLUDING SIGNAL RESPONSIVE MEANS FOR MODULATING THE PHASE OF SAID CARRIER WERE CIRCULATING IN SAID LOOP, MEANS FOR SUPPLYING THE SIGNAL TO BE INTEGRATED TO SAID PHASE MODULATING MEANS, AND MEANS ASSOCIATED WITH SAID LOOP FOR ADDING A CARRIER WAVE, AT A REFERENCE PHASE OF THE MODULATED CARRIER WAVE IN SAID LOOP, TO THE MODULATED CARRIER WAVE CIRCULATING IN SAID LOOP.
Claim 2
Dependent Claim
135 words
A SWEEP INTEGRATOR CIRCUIT COMPRISING A DELAY LINE, MEANS COUPLING THE OUTPUT OF SAID DELAY LINE TO ITS INPUT TO FORM A RECIRCULATORY LOOP HAVING A GAIN GREATER THAN UNITY FOR SIGNALS WITHIN A CERTAIN FREQUENCY BAND AND BELOW A CERTAIN AMPLITUDE LEVEL AT A SELECTED POINT IN SAID LOOP, WHEREBY A CARRIER WAVE HAVING A FREQUENCY WITHIN SAID BAND AT SAID SELECTED POINT IS CAUSED TO CIRCULATE IN SAID LOOP, SAID LAST-MENTIONED MEANS INCLUDING SIGNAL RESPONSIVE MEANS FOR MODULATING THE PHASE OF SAID CARRIER WERE CIRCULATING IN SAID LOOP, MEANS FOR SUPPLYING THE SIGNAL TO BE INTEGRATED TO SAID PHASE MODULATING MEANS, AND MEANS ASSOCIATED WITH SAID LOOP FOR ADDING A CARRIER WAVE, AT A REFERENCE PHASE OF THE MODULATED CARRIER WAVE IN SAID LOOP, TO THE MODULATED CARRIER WAVE CIRCULATING IN SAID LOOP.
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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |