US3345504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining the degree of coherence between two signals
Assignee: ConocoPhillips Co
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Filing: 1963-04-29
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Granted: 1967-10-03
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 William E N Doty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:56
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/364; G01V1/366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A DEVICE FOR DETERMINING THE DEGREE OF COHERENCE BETWEEN FIRST AND SECOND SIGNALS MAGNETICALLY RECORDED ON FIRST AND SECOND MAGNETIC RECORD TRACKS, THE DEVICE COMPRISING: MEANS FOR POSITIONING THE FIRST AND SECOND RECORD TRACKS IN SIDE-BY-SIDE RELATIONSHIP; AT LEAST ONE ELECTRICAL CONDUCTOR EXTENDING TRANSVERSELY ACROSS BOTH OF THE RECORD TRACKS AND INTERSECTING THE MAGNETIC FIELDS THEREOF: MEANS FOR MOVING BOTH RECORD TRACKS RELATIVE TO THE ELECTRICAL CONDUCTORS TO GENERATE AN ELECTROMOTIVE FORCE IN EACH OF THE CONDUCTORS PROPORTIONAL TO THE ALGEBRAIC SUM OF THAT PORTION OF THE MAGNETIC FIELDS OF THE RESPECTIVE RECORD TRACKS THROUGH WHICH THE CONDUCTOR IS PASSING; AND, CIRCUIT MEANS OPERATIVELY CONNECTED TO THE ELECTRICAL CONDUCTORS FOR PRODUCING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE SUM OF THE ABSOLUTE VALUES OF THE ELECTROMOTIVE FORCES GENERATED IN THE CONDUCTORS WHILE COLLECTIVELY TRAVERSING FINITE LENGTHS OF THE FIRST AND SECOND RECORD TRACKS CORRESPONDING TO FINITE TIME PERIODS OF THE FIRST AND SECOND SIGNALS,
Claim 2
Independent Claim
153 words
A DEVICE FOR DETERMINING THE DEGREE OF COHERENCE BETWEEN FIRST AND SECOND SIGNALS MAGNETICALLY RECORDED ON FIRST AND SECOND MAGNETIC RECORD TRACKS, THE DEVICE COMPRISING: MEANS FOR POSITIONING THE FIRST AND SECOND RECORD TRACKS IN SIDE-BY-SIDE RELATIONSHIP; AT LEAST ONE ELECTRICAL CONDUCTOR EXTENDING TRANSVERSELY ACROSS BOTH OF THE RECORD TRACKS AND INTERSECTING THE MAGNETIC FIELDS THEREOF: MEANS FOR MOVING BOTH RECORD TRACKS RELATIVE TO THE ELECTRICAL CONDUCTORS TO GENERATE AN ELECTROMOTIVE FORCE IN EACH OF THE CONDUCTORS PROPORTIONAL TO THE ALGEBRAIC SUM OF THAT PORTION OF THE MAGNETIC FIELDS OF THE RESPECTIVE RECORD TRACKS THROUGH WHICH THE CONDUCTOR IS PASSING; AND, CIRCUIT MEANS OPERATIVELY CONNECTED TO THE ELECTRICAL CONDUCTORS FOR PRODUCING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE SUM OF THE ABSOLUTE VALUES OF THE ELECTROMOTIVE FORCES GENERATED IN THE CONDUCTORS WHILE COLLECTIVELY TRAVERSING FINITE LENGTHS OF THE FIRST AND SECOND RECORD TRACKS CORRESPONDING TO FINITE TIME PERIODS OF THE FIRST AND SECOND SIGNALS,
References Cited (Backward Citations)
US2243730A
Cited
US2800639A
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US3209134A
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US3065453A
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US3163750A
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US3174142A
Cited
US3223967A
Cited
US3209322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |