US3286258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar apparatus
Assignee: Associated Electrical Industries Ltd
•
Filing: 1965-03-01
•
Granted: 1966-11-15
•
Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Mcqueen Jack Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:36
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/292; G01S7/2923; G01S7/2925; G01S13/00; G01S13/02; G01S13/06; G01S13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
RADAR EQUIPMENT INCLUDING APPARATUS FOR TRANSMITTING PULSES AND RECEIVING ECHO SIGNALS AT SUCCESSIVE ANGULAR POSITIONS OVER AN ANGULAR SWEEP, MEANS WHEREBY WHEN AN ECHO SIGNAL ABOVE A PREDETERMINED STRENGTH IS RECEIVED A MAIN COUNTING OPERATION IS STARTED AND CONTINUED UNTIL RELIABLE SIGNALS AT THE SAME RANGE CEASE, MEANS FOR INITIATING A COMPENSATING COUNT IMMEDIATELY TO FOLLOW THE MAIN COUNT, WHICH COMPENSATING COUNT HAS A LENGTH BEARING AN INVERSE RELATIONSHIP TO THE MAIN COUNT AND MEANS WHEREBY A BACKWARD ANGULAR CORRECTION IS THEN MADE FROM THE POSITION AT WHICH THE COMPENSATING COUNT ENDS TO DETERMINE THE TRUE ANGULAR POSITION OF THE TARGET IN THE ARC SWEPT DURING THE COUNTING OPERATIONS
Claim 2
Dependent Claim
109 words
RADAR EQUIPMENT INCLUDING APPARATUS FOR TRANSMITTING PULSES AND RECEIVING ECHO SIGNALS AT SUCCESSIVE ANGULAR POSITIONS OVER AN ANGULAR SWEEP, MEANS WHEREBY WHEN AN ECHO SIGNAL ABOVE A PREDETERMINED STRENGTH IS RECEIVED A MAIN COUNTING OPERATION IS STARTED AND CONTINUED UNTIL RELIABLE SIGNALS AT THE SAME RANGE CEASE, MEANS FOR INITIATING A COMPENSATING COUNT IMMEDIATELY TO FOLLOW THE MAIN COUNT, WHICH COMPENSATING COUNT HAS A LENGTH BEARING AN INVERSE RELATIONSHIP TO THE MAIN COUNT AND MEANS WHEREBY A BACKWARD ANGULAR CORRECTION IS THEN MADE FROM THE POSITION AT WHICH THE COMPENSATING COUNT ENDS TO DETERMINE THE TRUE ANGULAR POSITION OF THE TARGET IN THE ARC SWEPT DURING THE COUNTING OPERATIONS
References Cited (Backward Citations)
US2661467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |