Patent US3643166A successfully refreshed from Google Patents.
US3643166A
Expired / Lapsed
US
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Fm receiver for radiation pattern determining apparatus
Assignee: United States Department of the Navy
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Filing: 1970-03-12
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Granted: 1972-02-15
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Expires: 1990-03-12
Abstract
Abstract A simulation system including a control device, a master transmitter, a plurality of slave transmitters and a plurality of receivers. The master and slave transmitters are physically spaced apart and their transmission signals form a hyperbolic grid network. The receivers are positioned within the hyperbolic grid network and process the signals from the master and slave transmitters to simulate dose and dose rate of a simulated detonation that takes place in the hyperbolic grid network. The master and slave transmitters operate at different modulation frequencies to identify receiver quadrants and to provide desired resolution. The receivers are controlled by control signals from the master transmitter to compare and remember the phase difference between oppositely positioned transmitters for determining position and dose at each receiver within the hyperbolic grid.
Inventors
- 👤 Thomas W Mccurnin
- 👤 Lloyd J Perper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:07
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/20; G01S1/30; G01S1/022; G01S1/028
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
207 words
A receiver for processing frequency modulated carrier signals having first, second, third and fourth modulation frequency signals comprising: a. a receiver section b. first and second memory oscillators; c. first and second phase detectors; d. a filter device; e. said filter device connected to the output of said receiver section for rejecting the carrier signal and passing the modulation frequency signals of said frequency modulated carrier signals; f. means for selectively applying said firSt, second, third and fourth modulation frequency signals to said first and second memory oscillators and to said first and second phase detectors; g. said means applying said first modulation frequency signal to said first memory oscillator for being retained thereby; h. said means applying said second modulation frequency signal to said first phase detector; i. said means applying said third modulation frequency signal to said second memory oscillator for being retained thereby; j. said means applying said fourth modulation frequency signal to said second phase detector; k. the output of said first memory oscillator being applied to said first phase detector for comparison with said second modulation frequency signal; and l. the output of said second memory oscillator being applied to said second phase detector for comparison with said fourth modulation frequency signal.
Claim 2
Dependent Claim
207 words
A receiver for processing frequency modulated carrier signals having first, second, third and fourth modulation frequency signals comprising: a. a receiver section b. first and second memory oscillators; c. first and second phase detectors; d. a filter device; e. said filter device connected to the output of said receiver section for rejecting the carrier signal and passing the modulation frequency signals of said frequency modulated carrier signals; f. means for selectively applying said firSt, second, third and fourth modulation frequency signals to said first and second memory oscillators and to said first and second phase detectors; g. said means applying said first modulation frequency signal to said first memory oscillator for being retained thereby; h. said means applying said second modulation frequency signal to said first phase detector; i. said means applying said third modulation frequency signal to said second memory oscillator for being retained thereby; j. said means applying said fourth modulation frequency signal to said second phase detector; k. the output of said first memory oscillator being applied to said first phase detector for comparison with said second modulation frequency signal; and l. the output of said second memory oscillator being applied to said second phase detector for comparison with said fourth modulation frequency signal.
Claim 3
Dependent Claim
84 words
The device of claim 1 wherein: a. said frequency modulated carrier signals including control signals; b. the output of said receiver section is connected to the input of a command logic device for responding to said control signals; and c. the output of said command logic device being connected to a plurality of gates for selectively controlling the application of said first, second, third, and fourth modulation frequency signals to said first and second memory oscillators and to said first and second phase detectors.
Claim 4
Dependent Claim
58 words
The device of claim 9 wherein: a. said frequency modulated carrier signals including signals containing radiation parameter information; b. said command logic device responding to said signals containing radiation parameter information; c. a device for processing said signals containing radiation parameter information; and d. means for applying said signals containing radiation parameter information to said command logic device.
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) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |