US3241069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
F.m. receiver noise suppression circuit
Assignee: International Standard Electric Corp
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Filing: 1962-11-05
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Granted: 1966-03-15
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Garfield William Littery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:11
CPC Classifications
H; H03; H03G; H03G11/00; H03G11/06; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/34; G01S7/00; G01S7/02; G01S7/36; H03D; H03D3/00; H03D3/02; H03D3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A NOISE SUPPRESSION CIRCUIT FOR A FREQUENCY MODULATED RADAR RECEIVER INCLUDING A FREQUENCY COUNTER, COMPRISING AN INTEGRATOR CIRCUIT, A CLAMP CIRCUIT, SAID CLAMP CIRCUIT INCLUDING TWO ELEMENTS HAVING NON-LINEAR CURRENTVOLTAGE CHARACTERISTICS, EACH ELEMENT HAVING A PLURALITY OF TERMINALS, SAID ELEMENTS CONNECTED IN SERIES-AIDING AT ONE TERMINAL OF EACH OF SAID ELEMENTS, A CAPACITOR CONNECTED BETWEEN SAID INTEGRATING CIRCUIT AT THE JUNCTION OF SAID TWO ELEMENTS, AND CIRCUIT MEANS TO APPLY A POTENTIAL DIFFERENCE BETWEEN OTHER TERMINALS OF EACH OF SAID TWO ELEMENTS AND GROUND OF A VALUE SUCH THAT BOTH SAID ELEMENTS ARE NON-CONDUCTING IN THE ABSENCE OF A VOLTAGE FROM SAID INTEGRATING CIRCUIT, WHEREBY THE OUTPUT SIGNAL FROM SAID CLAMP CIRCUIT IS OF A CONSTANT AMPLITUDE BETWEEN TWO FIXED LEVELS.
Claim 2
Dependent Claim
121 words
A NOISE SUPPRESSION CIRCUIT FOR A FREQUENCY MODULATED RADAR RECEIVER INCLUDING A FREQUENCY COUNTER, COMPRISING AN INTEGRATOR CIRCUIT, A CLAMP CIRCUIT, SAID CLAMP CIRCUIT INCLUDING TWO ELEMENTS HAVING NON-LINEAR CURRENTVOLTAGE CHARACTERISTICS, EACH ELEMENT HAVING A PLURALITY OF TERMINALS, SAID ELEMENTS CONNECTED IN SERIES-AIDING AT ONE TERMINAL OF EACH OF SAID ELEMENTS, A CAPACITOR CONNECTED BETWEEN SAID INTEGRATING CIRCUIT AT THE JUNCTION OF SAID TWO ELEMENTS, AND CIRCUIT MEANS TO APPLY A POTENTIAL DIFFERENCE BETWEEN OTHER TERMINALS OF EACH OF SAID TWO ELEMENTS AND GROUND OF A VALUE SUCH THAT BOTH SAID ELEMENTS ARE NON-CONDUCTING IN THE ABSENCE OF A VOLTAGE FROM SAID INTEGRATING CIRCUIT, WHEREBY THE OUTPUT SIGNAL FROM SAID CLAMP CIRCUIT IS OF A CONSTANT AMPLITUDE BETWEEN TWO FIXED LEVELS.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |