Patent US3093823A successfully refreshed from Google Patents.
US3093823A
Expired / Lapsed
US
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Radar relay system
Assignee: Individual
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Filing: 1961-03-17
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Granted: 1963-06-11
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
- 👤 John C Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:48
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A SYSTEM FOR RELAYING RADAR TARGET SIGNALS AND THE AZIMUTHAL POSITION THEREOF TO REMOTE RECEIVERS COMPRISING MEANS FOR GENERATING A SAWTOOTH WAVEFORM FOR EACH OF SAID RADAR TARGET SIGNALS, SAID SAWTOOTH WAVEFORM BEING PROPORTIONAL IN LENGTH TO THE RANGE OF THE RADAR TARGET SIGNAL REPRESENTATIVE THEREOF, MEANS TO CONVERT EACH OF SAID SAWTOOTH WAVEFORMS TO A DIRECT CURRENT SIGNAL HAVING AN AMPLITUDE EQUAL TO THE PEAK AMPLITUDE VALUE OF THE SAWTOOTH WAVEFORM REPRESENTATIVE THEREOF, MEANS TO GENERATE AN AZIMUTHAL SIGNAL REPRESENTATIVE OF THE ORIENTATION OF THE RADAR ANTENNA RECEIVING SAID RADAR TARGET SIGNALS, MEANS TO MODULATE SAID AZIMUTHAL SIGNAL AND SAID DIRECT CURRENT SIGNALS AT SEPARATE PRESELECTED AUDIO FREQUENCIES, MEANS TO TRANSMIT SAID MODULATED SIGNALS TO A REMOTE RECEIVER FOR RECONVERTING SAID MODULATED SIGNALS TO PULSES REPRESENTATION OF SAID RADAR TARGET SIGNALS AND TO SIGNALS REPRESENTATIVE OF SAID AZIMUTHAL POSITIONS, AND MEANS FOR DISPLAYING SAID RECONVERTED SIGNALS ON THE SCREEN OF A PLAN POSITION INDICATOR.
Claim 2
Independent Claim
155 words
A SYSTEM FOR RELAYING RADAR TARGET SIGNALS AND THE AZIMUTHAL POSITION THEREOF TO REMOTE RECEIVERS COMPRISING MEANS FOR GENERATING A SAWTOOTH WAVEFORM FOR EACH OF SAID RADAR TARGET SIGNALS, SAID SAWTOOTH WAVEFORM BEING PROPORTIONAL IN LENGTH TO THE RANGE OF THE RADAR TARGET SIGNAL REPRESENTATIVE THEREOF, MEANS TO CONVERT EACH OF SAID SAWTOOTH WAVEFORMS TO A DIRECT CURRENT SIGNAL HAVING AN AMPLITUDE EQUAL TO THE PEAK AMPLITUDE VALUE OF THE SAWTOOTH WAVEFORM REPRESENTATIVE THEREOF, MEANS TO GENERATE AN AZIMUTHAL SIGNAL REPRESENTATIVE OF THE ORIENTATION OF THE RADAR ANTENNA RECEIVING SAID RADAR TARGET SIGNALS, MEANS TO MODULATE SAID AZIMUTHAL SIGNAL AND SAID DIRECT CURRENT SIGNALS AT SEPARATE PRESELECTED AUDIO FREQUENCIES, MEANS TO TRANSMIT SAID MODULATED SIGNALS TO A REMOTE RECEIVER FOR RECONVERTING SAID MODULATED SIGNALS TO PULSES REPRESENTATION OF SAID RADAR TARGET SIGNALS AND TO SIGNALS REPRESENTATIVE OF SAID AZIMUTHAL POSITIONS, AND MEANS FOR DISPLAYING SAID RECONVERTED SIGNALS ON THE SCREEN OF A PLAN POSITION INDICATOR.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |