US3123771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:01
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/34; H01J25/36; H01J25/38; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A COMMUNICATIONS SYSTEM COMPRISING A SOURCE OF INTELLIGENCE SIGNALS HAVING CHARACTERISTIC FREQUENCIES, A MODULATOR HAVING A FIRST INPUT CONNECTED TO SAID SOURCE AND HAVING A SECOND INPUT FOR A LOCAL OSCILLATOR SIGNAL, SAID MODULATOR FURTHER HAVING AN OUTPUT FOR PASSING INTELLIGENCE SIGNALS SHIFTED IN FREQUENCIES FROM SAID CHARACTERISTICS FREQUENCIES, TRAVELING WAVE AMPLIFYING APPARATUS HAVING A FIRST COMBINING FILTER INPUT CONNECTED TO SAID MODULATOR OUTPUT FOR RECEIVING SAID SHIFTED INTELLIGENCE SIGNALS AND HAVING A SECOND COMBINING FILTER INPUT FOR RECEIVING SAID LOCAL OSCILLATOR SIGNAL, SAID AMPLIFYING APPARATUS HAVING A FIRST BRANCHING FILTER OUTPUT ADAPTED FOR PASSING SAID SHIFTED INTELLIGENCE SIGNALS AS AMPLIFIED AND BLOCKING SAID LOCAL OSCILLATOR SIGNAL, SAID AMPLIFYING APPARATUS FURTHER HAVING A SECOND BRANCHING FILTER OUTPUT ADAPTED FOR PASSING SAID LOCAL OSCILLATOR SIGNAL AND BLOCKING SAID CHARACTERISTIC FREQUENCIES AND FREQUENCIES OF SAID SHIFTED INTELLIGENCE SIGNALS, AND A REGENERATIVE FEEDBACK CIRCUIT CONNECTED FROM SAID SECOND BRANCHING FILTER OUTPUT TO SAID SECOND COMBINING FILTER INPUT FOR PRODUCING SAID LOCAL OSCILLATOR SIGNAL, CHARACTERIZED IN THAT SAID FEEDBACK CIRCUIT COMPRISES A LIMITER FOR LIMITING SAID LOCAL OSCILLATOR SIGNAL AND A JUNCTION HAVING AN INPUT AND A FIRST OUTPUT CONNECTED SERIALLY WITH SAID LIMITER IN SAID FEEDBACK CIRCUIT AND HAVING A SECOND OUTPUT COUPLED TO SAID SECOND MODULATOR INPUT FOR SUPPLYING SAID LOCAL OSCILLATOR SIGNAL TO SAID MODULATOR.
Claim 2
Dependent Claim
214 words
A COMMUNICATIONS SYSTEM COMPRISING A SOURCE OF INTELLIGENCE SIGNALS HAVING CHARACTERISTIC FREQUENCIES, A MODULATOR HAVING A FIRST INPUT CONNECTED TO SAID SOURCE AND HAVING A SECOND INPUT FOR A LOCAL OSCILLATOR SIGNAL, SAID MODULATOR FURTHER HAVING AN OUTPUT FOR PASSING INTELLIGENCE SIGNALS SHIFTED IN FREQUENCIES FROM SAID CHARACTERISTICS FREQUENCIES, TRAVELING WAVE AMPLIFYING APPARATUS HAVING A FIRST COMBINING FILTER INPUT CONNECTED TO SAID MODULATOR OUTPUT FOR RECEIVING SAID SHIFTED INTELLIGENCE SIGNALS AND HAVING A SECOND COMBINING FILTER INPUT FOR RECEIVING SAID LOCAL OSCILLATOR SIGNAL, SAID AMPLIFYING APPARATUS HAVING A FIRST BRANCHING FILTER OUTPUT ADAPTED FOR PASSING SAID SHIFTED INTELLIGENCE SIGNALS AS AMPLIFIED AND BLOCKING SAID LOCAL OSCILLATOR SIGNAL, SAID AMPLIFYING APPARATUS FURTHER HAVING A SECOND BRANCHING FILTER OUTPUT ADAPTED FOR PASSING SAID LOCAL OSCILLATOR SIGNAL AND BLOCKING SAID CHARACTERISTIC FREQUENCIES AND FREQUENCIES OF SAID SHIFTED INTELLIGENCE SIGNALS, AND A REGENERATIVE FEEDBACK CIRCUIT CONNECTED FROM SAID SECOND BRANCHING FILTER OUTPUT TO SAID SECOND COMBINING FILTER INPUT FOR PRODUCING SAID LOCAL OSCILLATOR SIGNAL, CHARACTERIZED IN THAT SAID FEEDBACK CIRCUIT COMPRISES A LIMITER FOR LIMITING SAID LOCAL OSCILLATOR SIGNAL AND A JUNCTION HAVING AN INPUT AND A FIRST OUTPUT CONNECTED SERIALLY WITH SAID LIMITER IN SAID FEEDBACK CIRCUIT AND HAVING A SECOND OUTPUT COUPLED TO SAID SECOND MODULATOR INPUT FOR SUPPLYING SAID LOCAL OSCILLATOR SIGNAL TO SAID MODULATOR.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |