US3371198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal selection for correlation
Assignee: Phillips Petroleum Co
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Filing: 1964-11-04
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Granted: 1968-02-27
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Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 John P Greening
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:18
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/19; G06G7/1928; G01; G01V; G01V1/00; G01V1/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
APPARATUS FOR MEASURING THE CORRELATION BETWEEN SIGNALS COMPRISING: A PLURALITY OF FIRST INPUT TERMINALS ADAPTED TO RECEIVE RESPECTIVE FIRST INPUT SIGNALS; A PLURALITY OF SECOND INPUT TERMINALS ADAPTED TO RECEIVE RESPECTIVE SECOND INPUT SIGNALS; SIGNAL CORRELATION MEANS HAVING FIRST AND SECOND INPUTS; FIRST SWITCHING MEANS TO CONNECT SAID FIRST INPUT TERMINALS IN SEQUENCE TO SAID FIRST INPUT; SECOND SWITCHING MEANS TO CONNECT SAID SECOND INPUT TERMINALS IN SEQUENCE TO SAID SECOND INPUT; AND MEANS TO ACTUATE SAID FIRST AND SECOND SWITCHING MEANS TO CONNECT SAID OF SAID SECOND INPUT TERMINALS IN SEQUENCE TO SAID SECOND OUTPUT TERMINAL FOR PRESELECTED TIME INTERVALS AND TO CONNECT SAID FIRST INPUT TERMINALS IN SEQUENCE TO SAID FIRST OUTPUT TERMINAL DURING THE FIRST OF SAID PREDETERMINED TIME INTERVALS AND TO CONNECT SAID PLURALITY OF FIRST TERMINALS, LESS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |