Patent US3363858A successfully refreshed from Google Patents.
US3363858A
Expired / Lapsed
US
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Doppler homing system
Assignee: United States Department of the Navy
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Filing: 1958-09-23
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Granted: 1968-01-16
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Expires: 1978-09-23
Abstract
No abstract record available.
Inventors
- 👤 Billy D Dobbins
- 👤 Jr Oscar M Martin
- 👤 Jr Howell Brook Munson
- 👤 Hilary H Nall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:20
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22; F41G7/226; F41G7/2266; F41G7/2273; F41G7/2286; F41G7/24; F41G7/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN APPARATUS FOR REMOTELY GUIDING A VEHICLE TOWARD A MOVING TARGET; SAID APPARATUS INCLUDING A RADIO TRANSMITTER FOR ILLUMINATING THE TARGET, THE COMBINATION COMPRISING A SUPERHETERODYNE RECEIVER ABOARD THE VEHICLE, SAID RECEIVER INCLUDING A LOCAL OSCILLATOR AND A MIXER FOR REDUCING RECEIVED SIGNALS TO AN INTERMEDIATE FREQUENCY, AND MEANS FOR CONTROLLING THE FREQUENCY OF SAID LOCAL OSCILLATOR TO SUCH A VALUE AS TO ELIMINATE FROM THE INTERMEDIATE FREQUENCY OUTPUT OF SAID MIXER THE DOPPLER FREQUENCY COMPONENTS GENERATED BY RELATIVE MOTION BETWEEN THE VEHICLE AND THE TARGET.
Claim 2
Dependent Claim
86 words
IN APPARATUS FOR REMOTELY GUIDING A VEHICLE TOWARD A MOVING TARGET; SAID APPARATUS INCLUDING A RADIO TRANSMITTER FOR ILLUMINATING THE TARGET, THE COMBINATION COMPRISING A SUPERHETERODYNE RECEIVER ABOARD THE VEHICLE, SAID RECEIVER INCLUDING A LOCAL OSCILLATOR AND A MIXER FOR REDUCING RECEIVED SIGNALS TO AN INTERMEDIATE FREQUENCY, AND MEANS FOR CONTROLLING THE FREQUENCY OF SAID LOCAL OSCILLATOR TO SUCH A VALUE AS TO ELIMINATE FROM THE INTERMEDIATE FREQUENCY OUTPUT OF SAID MIXER THE DOPPLER FREQUENCY COMPONENTS GENERATED BY RELATIVE MOTION BETWEEN THE VEHICLE AND THE TARGET.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |