US3350643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal-to-noise ratio estimating by taking ratio of mean and standard deviation of integrated signal samples
Assignee: Individual
•
Filing: 1965-07-15
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Granted: 1967-10-31
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 James E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:22
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
IN A COMMUMICATION SYSTEM WHEREIN SIGNALS OF A PREDETERMINED FREQUENCY ARE TRANSMITTED IN A COMMUNICATION CHANNEL OF A TRANSMITTING SOURCE TO A RECEIVER WHEREIN SAID SIGNALS ARE RECEIVED, SAID SIGNALS BEING COMBINED WITH NOISE SIGNALS PRODUCED BY EXTRANEOUS NOISE SOURCES IN SAID COMMUNICATION SYSTEM, A SYSTEM FOR ESTIMATING THE RATIO OF SAID SIGNALS TO SAID NOISE SIGNALS COMPRISING: MEANS FOR DEFINING SUCCESSIVE TIME INTERVALS EACH HAVING A PERIOD T; MEANS FOR INTEGRATING THE SIGNALS RECEIVED DURING EACH TIME INTERVAL AND THE NOISE SIGNALS COMBINED THEREWITH TO PROVIDE AN OUTPUT AT THE END OF EACH T PERIOD; MEANS FOR ACCUMULATING K OUTPUTS PROVIDED DURING A DURATION KXT AND FOR PROVIDING A FIRST SIGNAL REPRESENTING THE ESTIMATED MEANS OF SAID K OUTPUTS AND A SECOND SIGNAL REPRESENTING THE ESTIMATED STANDARD DEVIATION OF SAID K OUTPUTS; AND MEANS RESPONSIVE TO SAID FIRST AND SECOND SIGNALS FOR ESTIMATING THE RATIO OF SAID SIGNALS TO SAID NOISE SIGNALS.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |