US3199031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation and use of control signal in superregenerative receivers
Assignee: Individual
•
Filing: 1962-05-03
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Granted: 1965-08-03
•
Expires: 1982-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jack R Harris
- 👤 Ray P Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:58
CPC Classifications
H; H03; H03D; H03D11/00; H03D11/02; H03D11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A RADIO RECEIVING SYSTEM COMPRISING AN AUDIO STAGE AND A SUPERREGENERATIVE DETECTOR ADAPTED TO RECEIVE AN EXTERNAL SIGNAL; AN ACTIVE DEVICE FOR SWITCHING SAID AUDIO STAGE ON AND OFF; MEANS FOR SENSING THE SHIFT IN THE QUENCH FREQUENCY OF SAID SUPERREGENERATIVE DETECTOR; AND MEANS FOR CAUSING SAID SENSING MEANS TO OPERATE SAID ACTIVE DEVICE TO SWITCH SAID AUDIO STAGE ON AND OFF IN RESPONSE TO THE SHIFT IN QUENCH FREQUENCY OCCASIONED BY THE PRESENCE AND ABSENCE OF SAID EXTERNAL SIGNAL, SAID LAST NAMED MEANS INCLUDING MEANS TO MAINTAIN SAID AUDIO STAGE SWITCHED OFF DURING THE ENTIRE INTERVAL WHEN SAID EXTERNAL SIGNAL IS ABSENT.
Claim 2
Dependent Claim
103 words
A RADIO RECEIVING SYSTEM COMPRISING AN AUDIO STAGE AND A SUPERREGENERATIVE DETECTOR ADAPTED TO RECEIVE AN EXTERNAL SIGNAL; AN ACTIVE DEVICE FOR SWITCHING SAID AUDIO STAGE ON AND OFF; MEANS FOR SENSING THE SHIFT IN THE QUENCH FREQUENCY OF SAID SUPERREGENERATIVE DETECTOR; AND MEANS FOR CAUSING SAID SENSING MEANS TO OPERATE SAID ACTIVE DEVICE TO SWITCH SAID AUDIO STAGE ON AND OFF IN RESPONSE TO THE SHIFT IN QUENCH FREQUENCY OCCASIONED BY THE PRESENCE AND ABSENCE OF SAID EXTERNAL SIGNAL, SAID LAST NAMED MEANS INCLUDING MEANS TO MAINTAIN SAID AUDIO STAGE SWITCHED OFF DURING THE ENTIRE INTERVAL WHEN SAID EXTERNAL SIGNAL IS ABSENT.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |