US3346862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Correlation detection systems
Assignee: Lockheed Martin Corp
•
Filing: 1962-05-24
•
Granted: 1967-10-10
•
Expires: 1982-05-24
Abstract
No abstract record available.
Inventors
- 👤 Ilmar G Raudsep
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:10
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14; G01S3/46; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/103; G01S3/80; G01S3/802; G01S3/808; H; H03; H03D; H03D1/00; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
IN AN AUTOCORRELATION DETECTING SYSTEM COMPRISING: AT LEAST TWO SPACED RECEIVING ELEMENTS; A CORRELATOR, SAID TWO RECEIVING ELEMENTS BEING CONNECTED TO THE INPUTS OF SAID CORRELATOR; WHEREBY THE TIME DIFFERENCE OF ARRIVAL OF A SIGNAL AT SAID TWO RECEIVING ELEMENTS, AND THEREFORE THE ANGULAR POSITION OF THE SOURCE OF SAID SIGNAL, MAY BE DETERMINED BY THE AUTOCORRELATION OF SIGNALS FROM SAID TWO RECEIVING ELEMENTS IN SAID CORRELATOR, WITH THE AUTOCORRELATION FUNCTION OF THE RECEIVED SIGNAL DEFINING THE SYSTEM BEAM PATTERN; THE IMPROVEMENT COMPRISING: AT LEAST TWO FILTERS, ONE CORRESPONDING TO EACH SAID RECEIVING ELEMENTS AND BEING PLACED BETWEEN SAID RECEIVING ELEMENTS AND SAID CORRELATOR, SAID FILTERS HAVING SUBSTANTIALLY IDENTICAL POWER RESPONSE CHARACTERISTICS WW(F) SATISFYING EQUATION WR(F)WW(F)=WO(F), WHERE WR(F) IS THE POWER SPECTRUM OF THE RECEIVED SIGNAL, AND
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |