US3102231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
White noise fault detection system
Assignee: General Dynamics Corp
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Filing: 1961-04-19
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Granted: 1963-08-27
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Expires: 1981-04-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Wolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:19
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/28; G01R31/2832; G01R31/2836; G06; G06G; G06G7/00; G06G7/12; G06G7/19; G06G7/1928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
APPARATUS COMPRISING A WHITE NOISE SOURCE, CORRELATING MEANS FOR PRODUCING A VOLTAGE OUTPUT THEREFROM HAVING A MAGNITUDE AND POLARITY MANIFESTING THE CORRELATION WHICH EXISTS OVER A GIVEN PERIOD OF TIME BETWEEN FIRST AND SECOND INPUTS APPLIED THERETO, TRANSMISSION MEANS INCLUDING A SYSTEM UNDER A TEST COUPLED BETWEEN SAID WHITE NOISE SOURCE AND SAID CORRELATING MEANS FOR APPLYING WHITE NOISE FROM SAID SOURCE MODIFIED IN ACCORDANCE WITH THE TRANSMISSION CHARACTERISTICS OF SAID SYSTEM UNDER TEST AS A FIRST INPUT TO SAID CORRELATING MEANS, AN ORTHOGONAL POLYNOMIAL FILTER COUPLED TO SAID WHITE NOISE SOURCE FOR PRODUCING A GIVEN PLURALITY OF SEPARATE STATISTICALLY INDEPENDENT OUTPUTS, AND MEANS FOR SUCCESSIVELY APPLYING EACH OF SAID FILTER OUTPUTS AS A SECOND INPUT TO SAID CORRELATING MEANS FOR A GIVEN PERIOD OF TIME.
Claim 2
Dependent Claim
126 words
APPARATUS COMPRISING A WHITE NOISE SOURCE, CORRELATING MEANS FOR PRODUCING A VOLTAGE OUTPUT THEREFROM HAVING A MAGNITUDE AND POLARITY MANIFESTING THE CORRELATION WHICH EXISTS OVER A GIVEN PERIOD OF TIME BETWEEN FIRST AND SECOND INPUTS APPLIED THERETO, TRANSMISSION MEANS INCLUDING A SYSTEM UNDER A TEST COUPLED BETWEEN SAID WHITE NOISE SOURCE AND SAID CORRELATING MEANS FOR APPLYING WHITE NOISE FROM SAID SOURCE MODIFIED IN ACCORDANCE WITH THE TRANSMISSION CHARACTERISTICS OF SAID SYSTEM UNDER TEST AS A FIRST INPUT TO SAID CORRELATING MEANS, AN ORTHOGONAL POLYNOMIAL FILTER COUPLED TO SAID WHITE NOISE SOURCE FOR PRODUCING A GIVEN PLURALITY OF SEPARATE STATISTICALLY INDEPENDENT OUTPUTS, AND MEANS FOR SUCCESSIVELY APPLYING EACH OF SAID FILTER OUTPUTS AS A SECOND INPUT TO SAID CORRELATING MEANS FOR A GIVEN PERIOD OF TIME.
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |