US3207988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse radar receiver
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1961-06-07
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Granted: 1965-09-21
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Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 Gerardin Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:50
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/18; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/292; G01S7/2921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A PULSE RADAR RECEIVER, ADAPTED TO RECEIVE ECHO PULSES FROM TARGETS, MEANS RESPONSIVE TO SAID ECHO PULSES COMPRISING A VIDEO STAGE DELIVERING VIDEO FREQUENCY PULSES, MEANS FOR DETERMINING THE INSTANT AT WHICH SAID VIDEO FREQUENCY PULSES REACH THEIR MAXIMUM AMPLITUDE, COMPRISING TWO CHANNELS, MEANS IN THE FIRST CHANNEL FOR CLIPPING SAID VIDEO PULSES WITH RESPECT TO A GIVEN THRESHOLD, MEANS IN THE SECOND CHANNEL TO DIFFERENTIATE SAID VIDEO PULSES AND, MEANS FOR CLIPPING SAID DIFFERENTIATED PULSES WITH RESPECT TO A GIVEN THRESHOLD, MEANS CONNECTED TO THE OUTPUT OF BOTH SAID CHANNELS TO COMBINE THE PULSES ISSUING FROM SAID FIRST AND SECOND CHANNELS RESPECTIVELY WHEREBY A SIGNAL IS PRODUCED CONSISTING IN A SERIES OF ALTERNATELY POSITIVE AND NEGATIVE PULSES, THE PASSAGE FROM A NEGATIVE PULSE TO A POSITIVE ONE CORRESPONDING TO THE INSTANT OF PASSAGE OF THE CONSIDERED VIDEO PULSE THROUGH ITS MAXIMUM VALUE WHEREBY THE TARGETS ARE ACCURATELY DETECTED.
Claim 2
Dependent Claim
150 words
IN A PULSE RADAR RECEIVER, ADAPTED TO RECEIVE ECHO PULSES FROM TARGETS, MEANS RESPONSIVE TO SAID ECHO PULSES COMPRISING A VIDEO STAGE DELIVERING VIDEO FREQUENCY PULSES, MEANS FOR DETERMINING THE INSTANT AT WHICH SAID VIDEO FREQUENCY PULSES REACH THEIR MAXIMUM AMPLITUDE, COMPRISING TWO CHANNELS, MEANS IN THE FIRST CHANNEL FOR CLIPPING SAID VIDEO PULSES WITH RESPECT TO A GIVEN THRESHOLD, MEANS IN THE SECOND CHANNEL TO DIFFERENTIATE SAID VIDEO PULSES AND, MEANS FOR CLIPPING SAID DIFFERENTIATED PULSES WITH RESPECT TO A GIVEN THRESHOLD, MEANS CONNECTED TO THE OUTPUT OF BOTH SAID CHANNELS TO COMBINE THE PULSES ISSUING FROM SAID FIRST AND SECOND CHANNELS RESPECTIVELY WHEREBY A SIGNAL IS PRODUCED CONSISTING IN A SERIES OF ALTERNATELY POSITIVE AND NEGATIVE PULSES, THE PASSAGE FROM A NEGATIVE PULSE TO A POSITIVE ONE CORRESPONDING TO THE INSTANT OF PASSAGE OF THE CONSIDERED VIDEO PULSE THROUGH ITS MAXIMUM VALUE WHEREBY THE TARGETS ARE ACCURATELY DETECTED.
References Cited (Backward Citations)
US2566331A
Cited
US2566332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |