US3195129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cw radar system
Assignee: Individual
•
Filing: 1962-05-04
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Granted: 1965-07-13
•
Expires: 1982-05-04
Abstract
No abstract record available.
Inventors
- 👤 Fishbeln William
- 👤 Otto E Rittenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/34; G01S13/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
239 words
A CW DOPPLER RADAR SYSTEM COMPRISING, MEANSF OR GENRATING AN IF SIGNAL AT A PRESCRIBED FREQUENCY SUCH THAT ITS PERIOD IS A FUNCTION OF THE MAXIMUM RANGE OF TARGETS TO BE DETECTED, A SOURCE OF RF ENERGY HAVING A PRESCRIBED FREQUENCY, MEANS RESPONSIVE TO SAID IF SIGNAL AND SAID RF ENERGY FOR PRODUCINGA CONTINUOUS WAVE OF RF SIGNAL ENERGY HAVING ITS PHASE ALTERNATELY REVERSED 180* AT A RATE CORRESPONDING TO ONE-HALF THE FREQUENCY OF SAID PRESCRIBED IF SIGNAL, A COMMON ANTENNA FOR RECEPTION AND TRANSMISSION, DUPLEXER MEANS COUPLED TO SAID ANTENNA AND RESPONSIVE TO SAID RF SIGNAL ENERGY WHEREBY AT ANY INSTANT A PORTION OF SAID RF SIGNAL ENERGY IS COUPLED TO SAID TION OF SAID RF SIGNAL ENERGY IS COUPLED TO SAID SIGNAL ENERGY LEAKS THROUGH SAID DUPLEXER MEANS TO AN OUTPUT PORT THEREOF, SAID DUPLEXER MEANS BEING ALSO RESPONSIVE TO THE RF SIGNAL ENERGY REFLECTED FROM A MOVING TARGET IN THE PATH OF THE TRANSMITTED RF SIGNAL ENERGY SUCH THAT THE REFLECTED RF SIGNAL ENERGY IS COMBINED WITH SAID LEAK-THROUGH ENERGY IN SIAD OUTPUT PORT, MEANS FOR PRODUCING A VIDEO-FORM BEAT SIGNAL FROM SAID COMBINED REFLECTED AND LEAK-THROUGH ENERGY, A BROAD-BAND AMPLIFIER FOR AMPLIFYING SAID VIDEO-FORM BEAT SIGNAL, MEANS RESPONSIVE TO SAID AMPLIFIED VIDEO-FORM BEAT SIGNAL AND SAID PRESCRIBED IF SIGNAL FOR PRODUCING A BEAT SIGNAL HAVING A CURRENT COPONENT CORRESPONDING TO THE DOPPLER FREQUENCY OF SAID DETECTED MOVING TARGET, AND MEANS FOR AMPLIFYING SAID CURRENT COMPONENT.
Claim 2
Dependent Claim
239 words
A CW DOPPLER RADAR SYSTEM COMPRISING, MEANSF OR GENRATING AN IF SIGNAL AT A PRESCRIBED FREQUENCY SUCH THAT ITS PERIOD IS A FUNCTION OF THE MAXIMUM RANGE OF TARGETS TO BE DETECTED, A SOURCE OF RF ENERGY HAVING A PRESCRIBED FREQUENCY, MEANS RESPONSIVE TO SAID IF SIGNAL AND SAID RF ENERGY FOR PRODUCINGA CONTINUOUS WAVE OF RF SIGNAL ENERGY HAVING ITS PHASE ALTERNATELY REVERSED 180* AT A RATE CORRESPONDING TO ONE-HALF THE FREQUENCY OF SAID PRESCRIBED IF SIGNAL, A COMMON ANTENNA FOR RECEPTION AND TRANSMISSION, DUPLEXER MEANS COUPLED TO SAID ANTENNA AND RESPONSIVE TO SAID RF SIGNAL ENERGY WHEREBY AT ANY INSTANT A PORTION OF SAID RF SIGNAL ENERGY IS COUPLED TO SAID TION OF SAID RF SIGNAL ENERGY IS COUPLED TO SAID SIGNAL ENERGY LEAKS THROUGH SAID DUPLEXER MEANS TO AN OUTPUT PORT THEREOF, SAID DUPLEXER MEANS BEING ALSO RESPONSIVE TO THE RF SIGNAL ENERGY REFLECTED FROM A MOVING TARGET IN THE PATH OF THE TRANSMITTED RF SIGNAL ENERGY SUCH THAT THE REFLECTED RF SIGNAL ENERGY IS COMBINED WITH SAID LEAK-THROUGH ENERGY IN SIAD OUTPUT PORT, MEANS FOR PRODUCING A VIDEO-FORM BEAT SIGNAL FROM SAID COMBINED REFLECTED AND LEAK-THROUGH ENERGY, A BROAD-BAND AMPLIFIER FOR AMPLIFYING SAID VIDEO-FORM BEAT SIGNAL, MEANS RESPONSIVE TO SAID AMPLIFIED VIDEO-FORM BEAT SIGNAL AND SAID PRESCRIBED IF SIGNAL FOR PRODUCING A BEAT SIGNAL HAVING A CURRENT COPONENT CORRESPONDING TO THE DOPPLER FREQUENCY OF SAID DETECTED MOVING TARGET, AND MEANS FOR AMPLIFYING SAID CURRENT COMPONENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |