Patent US3242494A successfully refreshed from Google Patents.
US3242494A
Expired / Lapsed
US
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Position determination system
Assignee: Raytheon Co
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Filing: 1962-01-25
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Granted: 1966-03-22
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Expires: 1982-01-25
Abstract
No abstract record available.
Inventors
- 👤 Francis A Gicca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/02; G01S5/00; G01S5/02; G01S5/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A POSITION FINDING SYSTEM COMPRISING: A VEHICLE INCLUDING MODULATION MEANS FOR PRODUCING MODULATED SIGNALS AND TRANSMITTER MEANS CONNECTED TO SAID MODULATION MEANS FOR TRANSMITTING SAID MODULATED SIGNALS; AND, VEHICLE POSITION DETERMINING MEANS LOCATED AT A PREDETERMINED REFERENCE SITE AWAY FROM SAID VEHICLE INCLUDING A PLURALITY OF INDEPENDENT PHASE MEASUREMENT MEANS EACH LOCATED AT DIFFERENT PREDETERMINED POSITIONS AND COMPRISING RECEIVING MEANS FOR RECEIVING SAID VEHICLE MODULATED SIGNALS, OSCILLATOR MEANS FOR PRODUCING REFERENCE SIGNALS, AND PHASE COMPARISON MEANS CONNECTED TO SAID RECEIVING MEANS AND TO SAID OSCILLATOR MEANS FOR MEASURING THE PHASE DIFFERENTIAL BETWEEN SAID MODULATED SIGNALS AND SAID REFERENCE SIGNALS AND PRODUCING PHASE DIFFERENTIAL SIGNALS A PLURALITY OF DIFFERENT TIMES, AND COMPUTING MEANS CONNECTED TO SAID PLURALITY OF INDEPENDENT PHASE MEASUREMENT MEANS FOR RECEIVING FROM EACH A PLURALITY OF SAID PHASE DIFFERENTIAL SIGNALS AND IN REPONSE THERETO CALCULATING THE POSITION OF SAID VEHICLE.
Claim 2
Dependent Claim
142 words
A POSITION FINDING SYSTEM COMPRISING: A VEHICLE INCLUDING MODULATION MEANS FOR PRODUCING MODULATED SIGNALS AND TRANSMITTER MEANS CONNECTED TO SAID MODULATION MEANS FOR TRANSMITTING SAID MODULATED SIGNALS; AND, VEHICLE POSITION DETERMINING MEANS LOCATED AT A PREDETERMINED REFERENCE SITE AWAY FROM SAID VEHICLE INCLUDING A PLURALITY OF INDEPENDENT PHASE MEASUREMENT MEANS EACH LOCATED AT DIFFERENT PREDETERMINED POSITIONS AND COMPRISING RECEIVING MEANS FOR RECEIVING SAID VEHICLE MODULATED SIGNALS, OSCILLATOR MEANS FOR PRODUCING REFERENCE SIGNALS, AND PHASE COMPARISON MEANS CONNECTED TO SAID RECEIVING MEANS AND TO SAID OSCILLATOR MEANS FOR MEASURING THE PHASE DIFFERENTIAL BETWEEN SAID MODULATED SIGNALS AND SAID REFERENCE SIGNALS AND PRODUCING PHASE DIFFERENTIAL SIGNALS A PLURALITY OF DIFFERENT TIMES, AND COMPUTING MEANS CONNECTED TO SAID PLURALITY OF INDEPENDENT PHASE MEASUREMENT MEANS FOR RECEIVING FROM EACH A PLURALITY OF SAID PHASE DIFFERENTIAL SIGNALS AND IN REPONSE THERETO CALCULATING THE POSITION OF SAID VEHICLE.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |