US3293607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coherent decision making receiver system
Assignee: Individual
•
Filing: 1961-10-20
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Granted: 1966-12-20
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Expires: 1981-10-20
Abstract
No abstract record available.
Inventors
- 👤 David C Kalbfell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:38
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/10; H04L27/14; H04L27/144; H04L27/152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A DECISION MAKING RECEIVER OF FREQUENCY SHIFT KEYED INPUT SIGNAL HAVING COHERENTLY RELATED SIGNAL AND KEYING FREQUENCIES COMPRISING, IN COMBINATION, A PLURALITY OF SIGNAL CHANNELS INDIVIDUAL TO SAID SIGNAL INPUTS, EACH SAID CHANNEL HAVING A DETECTED FOR PRODUCING A REFERENCE OSCILLATORY SIGNAL WHOSE FREQUENCY IS SERVOED TO THE FREQUENCY OF ITS INPUT SIGNAL AND UTILIZING ITS REFERENCE SIGNAL TO DEMODULATE ITS INPUT SIGNAL THEREBY TO PROVIDE A DEMODULATED OUTPUT SIGNAL, MEANS FOR BEATING A PREDETERMINED PAIR OF THE CHANNEL REFERENCE SIGNALS TO PROVIDE A BEAT SIGNAL THEREFROM WHOSE FREQUENCY IS THE DIFFERENCE BETWEEN THOSE OF SAID PAIR OF REFERENCE SIGNALS, MEANS FOR COVERING SAID BEAT SIGNAL TO A CLOCK SIGNAL WHOSE FRE-
Claim 2
Dependent Claim
112 words
A DECISION MAKING RECEIVER OF FREQUENCY SHIFT KEYED INPUT SIGNAL HAVING COHERENTLY RELATED SIGNAL AND KEYING FREQUENCIES COMPRISING, IN COMBINATION, A PLURALITY OF SIGNAL CHANNELS INDIVIDUAL TO SAID SIGNAL INPUTS, EACH SAID CHANNEL HAVING A DETECTED FOR PRODUCING A REFERENCE OSCILLATORY SIGNAL WHOSE FREQUENCY IS SERVOED TO THE FREQUENCY OF ITS INPUT SIGNAL AND UTILIZING ITS REFERENCE SIGNAL TO DEMODULATE ITS INPUT SIGNAL THEREBY TO PROVIDE A DEMODULATED OUTPUT SIGNAL, MEANS FOR BEATING A PREDETERMINED PAIR OF THE CHANNEL REFERENCE SIGNALS TO PROVIDE A BEAT SIGNAL THEREFROM WHOSE FREQUENCY IS THE DIFFERENCE BETWEEN THOSE OF SAID PAIR OF REFERENCE SIGNALS, MEANS FOR COVERING SAID BEAT SIGNAL TO A CLOCK SIGNAL WHOSE FRE-
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |