US3230530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1964-03-25
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Granted: 1966-01-18
•
Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 George H Balding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:11
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/933; G01S13/935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A RADAR VIDEO PROCESSING CIRCUIT FOR USE WITH A RADAR SYSTEM OF AN AIRCRAFT HAVING HORIZONTAL BUT NO VERTICAL ANTENNA SCAN CAPABILITY FOR USE WITH A TERRAIN CLEARANCE GENERATOR CIRCUIT, COMPRISING IN COMBINATION: GATE GENERATOR MEANS PROVIDING A PULSE OUTPUT HAVING A DURATION DETERMINED BY THE TIME BETWEEN RECEPTION OF A RADAR VIDEO AND TRANSMISSION OF A RADAR PULSE OF THE AIRCRAFT RADAR, A FIRST SAWTOOTH GENERATOR CONNECTED TO SAID GATE GENERATOR MEANS PROVIDING A RANGE SAWTOOTH VOLTAGE OUTPUT HAVING AN AMPLITUDE WHICH IS A FUNCTION OF RANGE TO THE TARGET, PEAK DETECTOR MEANS CONNECTED TO SAID FIRST SAWTOOTH GENERATOR PROVIDING A D.C. VOLTAGE OUTPUT HAVING AN AMPLITUDE WHICH VARIES DIRECTLY WITH THE PEAK VOLTAGE OF SAID RANGE SAWTOOTH, A SECOND SAWTOOTH GENERATOR CONNECTED TO SAID PEAK DETECTOR MEANS PROVIDING A SAWTOOTH VOLTAGE TO SAID TERRAIN CLEARANCE GENERATOR CIRCUIT HAVING A SHAPE WHICH VARIES DIRECTLY AS SAID D.C. VOLTAGE.
Claim 2
Dependent Claim
149 words
A RADAR VIDEO PROCESSING CIRCUIT FOR USE WITH A RADAR SYSTEM OF AN AIRCRAFT HAVING HORIZONTAL BUT NO VERTICAL ANTENNA SCAN CAPABILITY FOR USE WITH A TERRAIN CLEARANCE GENERATOR CIRCUIT, COMPRISING IN COMBINATION: GATE GENERATOR MEANS PROVIDING A PULSE OUTPUT HAVING A DURATION DETERMINED BY THE TIME BETWEEN RECEPTION OF A RADAR VIDEO AND TRANSMISSION OF A RADAR PULSE OF THE AIRCRAFT RADAR, A FIRST SAWTOOTH GENERATOR CONNECTED TO SAID GATE GENERATOR MEANS PROVIDING A RANGE SAWTOOTH VOLTAGE OUTPUT HAVING AN AMPLITUDE WHICH IS A FUNCTION OF RANGE TO THE TARGET, PEAK DETECTOR MEANS CONNECTED TO SAID FIRST SAWTOOTH GENERATOR PROVIDING A D.C. VOLTAGE OUTPUT HAVING AN AMPLITUDE WHICH VARIES DIRECTLY WITH THE PEAK VOLTAGE OF SAID RANGE SAWTOOTH, A SECOND SAWTOOTH GENERATOR CONNECTED TO SAID PEAK DETECTOR MEANS PROVIDING A SAWTOOTH VOLTAGE TO SAID TERRAIN CLEARANCE GENERATOR CIRCUIT HAVING A SHAPE WHICH VARIES DIRECTLY AS SAID D.C. VOLTAGE.
References Cited (Backward Citations)
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US2485584A
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US2412111A
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US2504975A
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US2591856A
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US2537569A
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US2817833A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |