US3333266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual spectrum radar ranging
Assignee: Motorola Solutions Inc
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Filing: 1966-03-23
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Granted: 1967-07-25
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Expires: 1986-03-23
Abstract
No abstract record available.
Inventors
- 👤 Neil C Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:39
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD FOR RADAR RANGING COMPRISING THE STEPS OF: (A) TRANSMITTING A SIGNAL AT A PREDETERMINED REPETITION RATE AT A RADAR TRANSMITTER, (B) GATING ON A RECEIVER FOR RECEIVING TARGET RETURN SIGNALS OF THE TRANSMITTED SIGNALS, AND (C) COMPARING THE PHASE OF THE FUNDAMENTAL FREQUENCY OF SAID REPETITION RATE WITH THE PHASE OF THE DIFFERENCE FREQUENCY BETWEEN TWO HARMONICALLY RELATED ADJACENT SPECTRUM LINES OF SAID RETURN SIGNALS WHEREBY RANGE INFORMATION FROM THE POINT OF SIGNAL RETURN TO SAID RECEIVER IS OBTAINED AS A LINEAR FUNCTION OF THE PHASE DIFFERENCE BETWEEN COMPARED SIGNALS.
Claim 2
Independent Claim
92 words
A METHOD FOR RADAR RANGING COMPRISING THE STEPS OF: (A) TRANSMITTING A SIGNAL AT A PREDETERMINED REPETITION RATE AT A RADAR TRANSMITTER, (B) GATING ON A RECEIVER FOR RECEIVING TARGET RETURN SIGNALS OF THE TRANSMITTED SIGNALS, AND (C) COMPARING THE PHASE OF THE FUNDAMENTAL FREQUENCY OF SAID REPETITION RATE WITH THE PHASE OF THE DIFFERENCE FREQUENCY BETWEEN TWO HARMONICALLY RELATED ADJACENT SPECTRUM LINES OF SAID RETURN SIGNALS WHEREBY RANGE INFORMATION FROM THE POINT OF SIGNAL RETURN TO SAID RECEIVER IS OBTAINED AS A LINEAR FUNCTION OF THE PHASE DIFFERENCE BETWEEN COMPARED SIGNALS.
References Cited (Backward Citations)
US3114909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |