Patent US3273147A successfully refreshed from Google Patents.
US3273147A
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Pulse radar system
Assignee: Thales SA
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Filing: 1964-11-05
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Granted: 1966-09-13
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Expires: 1984-11-05
Abstract
No abstract record available.
Inventors
- 👤 Herscovici Stelian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:26
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/522; G01S13/524; G01S13/526; G01S13/528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A PULSE RADAR SYSTEM IN WHICH PULSES OF RADIANT ENERGY, TRANSMITTED BY SAID SYSTEM WITH A BIRECURRENT REPETITION PERIOD OF MEANS VALUE T AND REFLECTED FROM TARGETS, ARE BEAT WITH A REFERENCE "COHERENT" SIGNAL, SYNCHRONIZED WITH THE TRANSMITTED PULSE TO PROVIDE A "COHERENT" ECHO SIGNAL, MEANS FOR PROVIDING AN IMPROVED CONTROL SIGNAL FOR A MOVING TARGET INDICATOR, SAID MEANS COMPRISING: MEANS FOR CAUSING TO BEAT EACH OF SAID COHERENT ECHO SIGNALS WITH THE SAID COHERENT SIGNAL ORIGINATING FROM THE PRECEDING ECHO FROM THE SAME TARGET, SAID BEATING MEANS INCLUDING MEANS FOR FREQUENCY TRANSLATING ONE OF THE BEATING COHERENT SIGNALS AND MEANS FOR ELIMINATING THE "SUM" FREQUENCY SIGNALS OF SAID BEAT, SAID BEATING MEANS HAVING AN OUTPUT; MEANS, HAVING AN INPUT COUPLED TO SAID OUTPUT, FOR PROVIDING THE DIFFERENCE OF TWO SUCCESSIVE SIGNALS SUPPLIED TO SAID INPUT; AND DETECTING MEANS, COUPLED TO SAID LAST MENTIONED OUTPUT AND HAVING AN OUTPUT SUPPLYING SAID IMPROVED CONTROL SIGNAL.
Claim 2
Dependent Claim
155 words
IN A PULSE RADAR SYSTEM IN WHICH PULSES OF RADIANT ENERGY, TRANSMITTED BY SAID SYSTEM WITH A BIRECURRENT REPETITION PERIOD OF MEANS VALUE T AND REFLECTED FROM TARGETS, ARE BEAT WITH A REFERENCE "COHERENT" SIGNAL, SYNCHRONIZED WITH THE TRANSMITTED PULSE TO PROVIDE A "COHERENT" ECHO SIGNAL, MEANS FOR PROVIDING AN IMPROVED CONTROL SIGNAL FOR A MOVING TARGET INDICATOR, SAID MEANS COMPRISING: MEANS FOR CAUSING TO BEAT EACH OF SAID COHERENT ECHO SIGNALS WITH THE SAID COHERENT SIGNAL ORIGINATING FROM THE PRECEDING ECHO FROM THE SAME TARGET, SAID BEATING MEANS INCLUDING MEANS FOR FREQUENCY TRANSLATING ONE OF THE BEATING COHERENT SIGNALS AND MEANS FOR ELIMINATING THE "SUM" FREQUENCY SIGNALS OF SAID BEAT, SAID BEATING MEANS HAVING AN OUTPUT; MEANS, HAVING AN INPUT COUPLED TO SAID OUTPUT, FOR PROVIDING THE DIFFERENCE OF TWO SUCCESSIVE SIGNALS SUPPLIED TO SAID INPUT; AND DETECTING MEANS, COUPLED TO SAID LAST MENTIONED OUTPUT AND HAVING AN OUTPUT SUPPLYING SAID IMPROVED CONTROL SIGNAL.
References Cited (Backward Citations)
US2746033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |