Patent US5226034A successfully refreshed from Google Patents.
Patent US3401341A successfully refreshed from Google Patents.
US3401341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic switching of receiver mode responsive to characteristic of received signal
Assignee: Individual
•
Filing: 1965-10-21
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Granted: 1968-09-10
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Leonard R Kahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:42
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/30; H04B1/302; H04B1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE METHOD OF OPERATING A COMMUNICATIONS RECEIVER EQUIPPED TO RECEIVE A MODULATED RF SIGNAL HAVING A VARYING PEAK-TO-AVERAGE VOLTAGE RATIO AND APPLYING SUCH SIGNAL TO AMPLITUDE MODULATION DETECTION MEANS AND THENCE TO A UTILIZATION CIRCUIT; SAID METHOD COMPRISING: SENSING THE PEAK VOLTAGE OF THE RECEIVED SIGNAL; SENSING THE AVERAGE VOLTAGE OF THE RECEIVED SIGNAL; COMPARING THE PEAK AND AVERAGE VOLTAGES TO DEVELOP A CONTROL SIGNAL WHICH IS AN INDICATION OF THE PEAK-TO-AVERAGE VOLTAGE RATIO OF THE RECEIVED SIGNAL; AND UTILIZING SUCH CONTROL SIGNAL TO CAUSE APPLICATION OF THE INCOMING SIGNAL TO SAID AMPLITUDE MODULATION DETECTION MEANS ONLY WHEN SAID PEAK-TO-AVERAGE VOLTAGE RATIO IS LESS THAN A PREDETERMINED VALUE.
Claim 2
Independent Claim
108 words
THE METHOD OF OPERATING A COMMUNICATIONS RECEIVER EQUIPPED TO RECEIVE A MODULATED RF SIGNAL HAVING A VARYING PEAK-TO-AVERAGE VOLTAGE RATIO AND APPLYING SUCH SIGNAL TO AMPLITUDE MODULATION DETECTION MEANS AND THENCE TO A UTILIZATION CIRCUIT; SAID METHOD COMPRISING: SENSING THE PEAK VOLTAGE OF THE RECEIVED SIGNAL; SENSING THE AVERAGE VOLTAGE OF THE RECEIVED SIGNAL; COMPARING THE PEAK AND AVERAGE VOLTAGES TO DEVELOP A CONTROL SIGNAL WHICH IS AN INDICATION OF THE PEAK-TO-AVERAGE VOLTAGE RATIO OF THE RECEIVED SIGNAL; AND UTILIZING SUCH CONTROL SIGNAL TO CAUSE APPLICATION OF THE INCOMING SIGNAL TO SAID AMPLITUDE MODULATION DETECTION MEANS ONLY WHEN SAID PEAK-TO-AVERAGE VOLTAGE RATIO IS LESS THAN A PREDETERMINED VALUE.
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |