Patent US3256519A successfully refreshed from Google Patents.
US3256519A
Expired / Lapsed
US
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Ground based miss distance computer
Assignee: G C DEWEY CORP
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Filing: 1963-11-29
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Granted: 1966-06-14
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Dewey
- 👤 Louis H Benzing
- 👤 Finkel Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:21
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/505
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A DEVICE FOR INDICATING WHEN THE DISTANCE BETWEEN A MOVING OBJECT AND A TARGET IS AT A MINIMUM, COMPRISING MEANS FOR PRODUCING DOPPLER FREQUENCY SIGNALS DEPENDENT UPON THE RELATIVE VELOCITY BETWEEN SAID OBJECT AND TARGET, COMPARISON MEANS FOR COMPARING APPROACHING AND RECEDING DOPPLER CYCLES, SAID COMPARISON MEANS INCLUDING A REGISTER FOR RECEIVING SAID DOPPLER SIGNALS AND GATING MEANS FOR INDICATING WHEN SAID SIGNALS ARE THE SAME, AND OUTPUT MEANS CONNECTED FROM SAID COMPARISON MEANS FOR INDICATING THAT SAID MINIMUM DISTANCE HAS BEEN REACHED, SAID OUTPUT MEANS COMPRISING THRESHOLD MEANS COUPLED TO THE OUTPUT OF SAID GATING MEANS AND RESPONSIVE TO THE NUMBER OF RECEIVED DOPPLER PULSES, WHEREIN SAID COMPARISON MEANS INCLUDES A REGISTER FOR RECEIVING SAID SPECTRA, AND GATING MEANS FOR INDICATING WHEN THE SPECTRA ARE THE SAME, AND SAID OUTPUT MEANS COMPRISED THRESHOLD MEANS COUPLED TO THE OUTPUT OF SAID GATES AND RESPONSIVE TO THE NUMBER OF RECEIVED DOPPLE PULSES.
Claim 2
Independent Claim
151 words
A DEVICE FOR INDICATING WHEN THE DISTANCE BETWEEN A MOVING OBJECT AND A TARGET IS AT A MINIMUM, COMPRISING MEANS FOR PRODUCING DOPPLER FREQUENCY SIGNALS DEPENDENT UPON THE RELATIVE VELOCITY BETWEEN SAID OBJECT AND TARGET, COMPARISON MEANS FOR COMPARING APPROACHING AND RECEDING DOPPLER CYCLES, SAID COMPARISON MEANS INCLUDING A REGISTER FOR RECEIVING SAID DOPPLER SIGNALS AND GATING MEANS FOR INDICATING WHEN SAID SIGNALS ARE THE SAME, AND OUTPUT MEANS CONNECTED FROM SAID COMPARISON MEANS FOR INDICATING THAT SAID MINIMUM DISTANCE HAS BEEN REACHED, SAID OUTPUT MEANS COMPRISING THRESHOLD MEANS COUPLED TO THE OUTPUT OF SAID GATING MEANS AND RESPONSIVE TO THE NUMBER OF RECEIVED DOPPLER PULSES, WHEREIN SAID COMPARISON MEANS INCLUDES A REGISTER FOR RECEIVING SAID SPECTRA, AND GATING MEANS FOR INDICATING WHEN THE SPECTRA ARE THE SAME, AND SAID OUTPUT MEANS COMPRISED THRESHOLD MEANS COUPLED TO THE OUTPUT OF SAID GATES AND RESPONSIVE TO THE NUMBER OF RECEIVED DOPPLE PULSES.
References Cited (Backward Citations)
US3168735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |