US3277477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doppler apparatus
Assignee: American Radar Corp
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Filing: 1964-06-02
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Granted: 1966-10-04
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Expires: 1984-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jack A Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:07
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/91; G01S13/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A SYSTEM FOR CALIBRATING DOPPLER RADAY APPARATUS FOR USE IN DETERMINING THE VELOCITY OF MOTOR VEHICLES, SAID APPARATUS INCLUDING A TRANSMITTER FOR DIRECTING A BEAM OF HIGH-FREQUENCY ELECTROMAGNETIC WAVES AT SUCH MOTOR VEHICLES, RECEIVING MEANS FOR RECEIVING SAID TRANSMITTED WAVES DIRECTLY FROM SAID TRANSMITTER AND SAID TRANSMITTED WAVES AFTER SAID WAVES HAVE BEEN REFLECTED FROM SUCH VEHICLES, DETECTOR MEANS EFFECTIVELY COMPARING SAID TRANSMITTED WAVES AND SAID REFLECTED WAVES TO GENERATE AN AUDIO SIGNAL HAVING A FREQUENCY REPRESENTATIVE OF THE DIFFERENCE BETWEEN SAID TRANSMITTED WAVES AND SAID REFLECTED WAVES, SIGNAL PROCESSING MEANS ENERGIZED FROM SAID DETECTOR MEANS, AND INDICATING MEANS ENERGIZED FROM SAID SIGNAL PROCESSING MEANS TO INDICATE THE VELOCITY OF SUCH A VEHICLE, SAID SYSTEM COMPRISING MEANS FOR GENERATING AN AUDIO TEST SIGNAL OF A KNOWN FREQUENCY CORRESPONDING TO A PRESELECTED VELOCITY OF SUCH VEHICLE, SAID GENERATING MEANS INCLUDING TRANSDUCER MEANS MOUNTED WITHIN SAID APPARATUS, MEANS FOR APPLYING SAID AUDIO TEST SIGNAL DIRECTLY TO SAID SIGNAL PROCESSING MEANS, AND MEANS FOR ALTERING SAID INDICATING MEANS TO READ THE VEHICLE VELOCITY CORRESPONDING TO SAID KNOWN FREQUENCY.
Claim 2
Independent Claim
175 words
A SYSTEM FOR CALIBRATING DOPPLER RADAY APPARATUS FOR USE IN DETERMINING THE VELOCITY OF MOTOR VEHICLES, SAID APPARATUS INCLUDING A TRANSMITTER FOR DIRECTING A BEAM OF HIGH-FREQUENCY ELECTROMAGNETIC WAVES AT SUCH MOTOR VEHICLES, RECEIVING MEANS FOR RECEIVING SAID TRANSMITTED WAVES DIRECTLY FROM SAID TRANSMITTER AND SAID TRANSMITTED WAVES AFTER SAID WAVES HAVE BEEN REFLECTED FROM SUCH VEHICLES, DETECTOR MEANS EFFECTIVELY COMPARING SAID TRANSMITTED WAVES AND SAID REFLECTED WAVES TO GENERATE AN AUDIO SIGNAL HAVING A FREQUENCY REPRESENTATIVE OF THE DIFFERENCE BETWEEN SAID TRANSMITTED WAVES AND SAID REFLECTED WAVES, SIGNAL PROCESSING MEANS ENERGIZED FROM SAID DETECTOR MEANS, AND INDICATING MEANS ENERGIZED FROM SAID SIGNAL PROCESSING MEANS TO INDICATE THE VELOCITY OF SUCH A VEHICLE, SAID SYSTEM COMPRISING MEANS FOR GENERATING AN AUDIO TEST SIGNAL OF A KNOWN FREQUENCY CORRESPONDING TO A PRESELECTED VELOCITY OF SUCH VEHICLE, SAID GENERATING MEANS INCLUDING TRANSDUCER MEANS MOUNTED WITHIN SAID APPARATUS, MEANS FOR APPLYING SAID AUDIO TEST SIGNAL DIRECTLY TO SAID SIGNAL PROCESSING MEANS, AND MEANS FOR ALTERING SAID INDICATING MEANS TO READ THE VEHICLE VELOCITY CORRESPONDING TO SAID KNOWN FREQUENCY.
References Cited (Backward Citations)
US3143736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |