US3124797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
R orfar
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:36
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/422
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
IN AN AIRBORNE CONICAL SCAN RADAR INCLUDING MEANS FOR TRANSMITTING ELECTROMAGNETIC ENERGY IN A PREDETERMINED PATTERN ABOUT A REFERENCE AXIS, MEANS FOR RECEIVING PULSES REFLECTED FROM AN AIRBORNE TARGET, AND AN ANTENNA COMMON TO THE TRANSMIT AND RECEIVE MEANS, MEANS TO DETERMINE THE LINE-OF-SIGHT TO AN AIRBORNE TARGET WITH RESPECT TO A REFERENCE AXIS COMPRISING: (A) AGC MEANS TO KEEP SUBSTANTIALLY CONSTANT THE AMPLITUDE OF THE OUTPUT OF THE RECEIVING MEANS; (B) MEANS TO DERIVE FROM SAID AGC MEANS AND AGC MODULATION SIGNAL VARYING SINUSOIDALLY WITH THE SPIN RATE OF THE ANTENNA, WHEREBY THE PHASE OF THE AGC SIGNAL IS INDICATIVE OF THE POSITION OF THE ANTENNA WITH RESPECT TO THE REFERENCE AXIS, THE AGC MODULATION SIGNAL HAVING AN INSTANTANEOUS MINIMUM VALUE WHEN THE ANTENNA IS POINTED CLOSEST TO THE TARGET; (C) MEANS FOR AMPLIFYING THE OUTPUT OF THE RECEIVER, THE AGC MODULATION SIGNAL BEING APPLIED TO SAID AMPLIFYING MEANS; (D) GATING MEANS RESPONSIVE TO THE AMPLITUDE AND PHASE OF SAID AGC SIGNAL TO CONTROL THE DURATION AND OCCURRENCE IN TIME OF THE OUTPUT SIGNAL OF SAID AMPLIFYING MEANS; AND (E) TARGET POSITION INDICATING MEANS, THE OUTPUT OF SAID AMPLIFYING MEANS BEING APPLIED TO SAID TARGET POSITION INDICATING MEANS TO OBTAIN AN INDICATION OF THE POSITION OF THE TARGET WITH RESPECT TO THE REFERENCE AXIS.
Claim 2
Dependent Claim
215 words
IN AN AIRBORNE CONICAL SCAN RADAR INCLUDING MEANS FOR TRANSMITTING ELECTROMAGNETIC ENERGY IN A PREDETERMINED PATTERN ABOUT A REFERENCE AXIS, MEANS FOR RECEIVING PULSES REFLECTED FROM AN AIRBORNE TARGET, AND AN ANTENNA COMMON TO THE TRANSMIT AND RECEIVE MEANS, MEANS TO DETERMINE THE LINE-OF-SIGHT TO AN AIRBORNE TARGET WITH RESPECT TO A REFERENCE AXIS COMPRISING: (A) AGC MEANS TO KEEP SUBSTANTIALLY CONSTANT THE AMPLITUDE OF THE OUTPUT OF THE RECEIVING MEANS; (B) MEANS TO DERIVE FROM SAID AGC MEANS AND AGC MODULATION SIGNAL VARYING SINUSOIDALLY WITH THE SPIN RATE OF THE ANTENNA, WHEREBY THE PHASE OF THE AGC SIGNAL IS INDICATIVE OF THE POSITION OF THE ANTENNA WITH RESPECT TO THE REFERENCE AXIS, THE AGC MODULATION SIGNAL HAVING AN INSTANTANEOUS MINIMUM VALUE WHEN THE ANTENNA IS POINTED CLOSEST TO THE TARGET; (C) MEANS FOR AMPLIFYING THE OUTPUT OF THE RECEIVER, THE AGC MODULATION SIGNAL BEING APPLIED TO SAID AMPLIFYING MEANS; (D) GATING MEANS RESPONSIVE TO THE AMPLITUDE AND PHASE OF SAID AGC SIGNAL TO CONTROL THE DURATION AND OCCURRENCE IN TIME OF THE OUTPUT SIGNAL OF SAID AMPLIFYING MEANS; AND (E) TARGET POSITION INDICATING MEANS, THE OUTPUT OF SAID AMPLIFYING MEANS BEING APPLIED TO SAID TARGET POSITION INDICATING MEANS TO OBTAIN AN INDICATION OF THE POSITION OF THE TARGET WITH RESPECT TO THE REFERENCE AXIS.
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |