US3328796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar range tracking apparatus
Assignee: Honeywell Inc
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Filing: 1965-09-17
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Granted: 1967-06-27
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Robert J Follen
- 👤 Baard H Thue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:10
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66; G01S13/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
IN A RADAR ALTIMETER SYSTEM WHEREIN A TRACKING GATE EFFECTIVELY OCCURS AT A VARIABLE TIME $T, AFTER THE TRANSMISSION OF A PULSE FROM A TRANSMITTER IN THE SYSTEM IN CORRESPONDENCE WITH A VIDEO SIGNAL REPRESENTING A REFLECTED ECHO PULSE, AND A D-C VOLTAGE ER, CORRESPONDING TO THE VARIABLE TIME, INDICATIVE OF THE ALTITUDE, IS PRODUCED, THE COMBINATION COMPRISING: MEANS FOR DEVELOPING AN ELECTRIC CURRENT WHICH IS A FUNCTION OF THE VARIABLE TIME $T; MEANS FOR DEVELOPING AN ELECTRIC CURRENT WHICH IS A FUNCTION OF THE D-C VOLTAGE ER; MEANS FOR SUMMING THE AFOREMENTIONED ELECTRIC CURRENTS, THE CURRENTS BEING OF OPPOSITE SENSE, AND THE CURRENTS BEING SCALED ACCORDING TO THE REQUIREMENT THAT THE AVERAGE OF THE SUM OF THE CURRENTS MUST BE EQUAL TO A PREDETERMINED VALUE WHEN THERE IS NO DISCREPANCY BETWEEN THE VARIABLE TIME $T AND THE CORRESPONDING D-C VOLTAGE ER; AND SWITCHING MEANS RESPONSIVE TO SAID SUMMING MEANS WHEN THE CURRENT SUM IS NOT EQUAL TO THE PREDETERMINED VALUE.
Claim 2
Dependent Claim
161 words
IN A RADAR ALTIMETER SYSTEM WHEREIN A TRACKING GATE EFFECTIVELY OCCURS AT A VARIABLE TIME $T, AFTER THE TRANSMISSION OF A PULSE FROM A TRANSMITTER IN THE SYSTEM IN CORRESPONDENCE WITH A VIDEO SIGNAL REPRESENTING A REFLECTED ECHO PULSE, AND A D-C VOLTAGE ER, CORRESPONDING TO THE VARIABLE TIME, INDICATIVE OF THE ALTITUDE, IS PRODUCED, THE COMBINATION COMPRISING: MEANS FOR DEVELOPING AN ELECTRIC CURRENT WHICH IS A FUNCTION OF THE VARIABLE TIME $T; MEANS FOR DEVELOPING AN ELECTRIC CURRENT WHICH IS A FUNCTION OF THE D-C VOLTAGE ER; MEANS FOR SUMMING THE AFOREMENTIONED ELECTRIC CURRENTS, THE CURRENTS BEING OF OPPOSITE SENSE, AND THE CURRENTS BEING SCALED ACCORDING TO THE REQUIREMENT THAT THE AVERAGE OF THE SUM OF THE CURRENTS MUST BE EQUAL TO A PREDETERMINED VALUE WHEN THERE IS NO DISCREPANCY BETWEEN THE VARIABLE TIME $T AND THE CORRESPONDING D-C VOLTAGE ER; AND SWITCHING MEANS RESPONSIVE TO SAID SUMMING MEANS WHEN THE CURRENT SUM IS NOT EQUAL TO THE PREDETERMINED VALUE.
References Cited (Backward Citations)
US3040312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |