Patent US3201789A successfully refreshed from Google Patents.
US3201789A
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Moving target indicator for a stackedbeam coherent radar
Assignee: Unisys Corp
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Filing: 1960-12-21
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Granted: 1965-08-17
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Arnold M Fine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:06
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/522; G01S13/524
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
APPARATUS INCLUDING A STACKED-BEAM RADAR OF THE COHERENT TYPE HAVING A MULTIPLICITY OF RECEIVERS, EACH R%ECEIVER SEPARATELY RECEIVING TARGET SIGNALS INTERCEPTED BY A RESPECTIVE ONE OF A MULTIPLICTY OF ANTENNAS COMPRISING THE STACKED ANTENNA ARRAY OF SAID RADAR, A PLURALITY OF MULTIPLEXERS, EACH MULTIPLEXER BEING CONNECTED TO RESPECTIVE ONES OF SAID RECEIVERS FOR ADDITIVELY COMBINING THE OUTPUT SIGNALS THEREOF, A PLURALITY OF MEANS FOR COHERENTLY PHASE DETECTING THE OUTPUT SIGNALS OF SAID MULTIPLEXERS, EACH SAID MEANS BEING CONNECTED TO A RESPECTIVE ONE OF SAID MULTIPLXERS, A PLURALITY OF SATATIONARY TARGET SIGNAL CANCELLATION CIRCUITS, EACH SAID CANCELLATION CIRCUIT BEING CONNECTED TO THE OUTPUT OF A RESPECTIVE ONE OF SAID MEANS, A SIGNAL SUMMING CIRCUIT, AND A PLURALITY OF FULL WAVE RECTIFIERS, EACH SAID RECTIFIER CONNECTING THE OUTPUT OF A RESPECTIVE ONE OF SAID CANCELLATION CIRCUITS TO SAID SUMMING CIRCUIT.
Claim 2
Dependent Claim
138 words
APPARATUS INCLUDING A STACKED-BEAM RADAR OF THE COHERENT TYPE HAVING A MULTIPLICITY OF RECEIVERS, EACH R%ECEIVER SEPARATELY RECEIVING TARGET SIGNALS INTERCEPTED BY A RESPECTIVE ONE OF A MULTIPLICTY OF ANTENNAS COMPRISING THE STACKED ANTENNA ARRAY OF SAID RADAR, A PLURALITY OF MULTIPLEXERS, EACH MULTIPLEXER BEING CONNECTED TO RESPECTIVE ONES OF SAID RECEIVERS FOR ADDITIVELY COMBINING THE OUTPUT SIGNALS THEREOF, A PLURALITY OF MEANS FOR COHERENTLY PHASE DETECTING THE OUTPUT SIGNALS OF SAID MULTIPLEXERS, EACH SAID MEANS BEING CONNECTED TO A RESPECTIVE ONE OF SAID MULTIPLXERS, A PLURALITY OF SATATIONARY TARGET SIGNAL CANCELLATION CIRCUITS, EACH SAID CANCELLATION CIRCUIT BEING CONNECTED TO THE OUTPUT OF A RESPECTIVE ONE OF SAID MEANS, A SIGNAL SUMMING CIRCUIT, AND A PLURALITY OF FULL WAVE RECTIFIERS, EACH SAID RECTIFIER CONNECTING THE OUTPUT OF A RESPECTIVE ONE OF SAID CANCELLATION CIRCUITS TO SAID SUMMING CIRCUIT.
References Cited (Backward Citations)
US2659079A
Cited
US2810905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |