Patent US3405369A successfully refreshed from Google Patents.
US3405369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic frequency divider
Assignee: Westinghouse Electric Corp
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Filing: 1964-01-21
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Granted: 1968-10-08
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Expires: 1984-01-21
Abstract
No abstract record available.
Inventors
- 👤 James B Couvillon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:06
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
APPARATUS FOR PRODUCING SYNTHETIC FREQUENCY DIVISION OF AN ELECTRICAL SIGNAL COMPRISING: (A) A FIRST OSCILLATOR FOR PROVIDING A FIRST OSCILLATOR SIGNAL; (B) A SECOND OSCILLATOR FOR PROVIDING A SECOND OSCILLATOR SIGNAL; (C) FREQUENCY DIVIDER MEANS COUPLED ONLY TO SAID FIRST OSCILLATOR FOR PROVIDING A COMPARISON SIGNAL HAVING A FREQUENCY WHICH IS EQUAL TO F/N, WHERE F IS THE FREQUENCY OF SAID FIRST OSCILLATOR AND N IS A WHOLE NUMBER; (D) SAID WHOLE NUMBER N BEING DIRECTLY PROPORTIONAL TO THE NUMBER OF CYCLES OF SAID FIRST OSCILLATOR SIGNAL BETWEEN PHASE COINCIDENCE CROSSOVER POINTS OF SAID FIRST AND SECOND OSCILLATOR SIGNALS; (E) SAID FREQUENCY F/N BEING DIFFERENT THAN THE FREQUENCIES OF BOTH SAID FIRST AND SECOND OSCILLATORS; AND (F) CIRCUIT MEANS RESPONSIVE TO SAID COMPARISON SIGNAL AND SAID SECOND OSCILLATOR SIGNAL, WITH RESPECT TO TIME COINCIDENCE, FOR CONTROLLING SAID SECOND OSCILLATOR SIGNAL.
Claim 2
Dependent Claim
140 words
APPARATUS FOR PRODUCING SYNTHETIC FREQUENCY DIVISION OF AN ELECTRICAL SIGNAL COMPRISING: (A) A FIRST OSCILLATOR FOR PROVIDING A FIRST OSCILLATOR SIGNAL; (B) A SECOND OSCILLATOR FOR PROVIDING A SECOND OSCILLATOR SIGNAL; (C) FREQUENCY DIVIDER MEANS COUPLED ONLY TO SAID FIRST OSCILLATOR FOR PROVIDING A COMPARISON SIGNAL HAVING A FREQUENCY WHICH IS EQUAL TO F/N, WHERE F IS THE FREQUENCY OF SAID FIRST OSCILLATOR AND N IS A WHOLE NUMBER; (D) SAID WHOLE NUMBER N BEING DIRECTLY PROPORTIONAL TO THE NUMBER OF CYCLES OF SAID FIRST OSCILLATOR SIGNAL BETWEEN PHASE COINCIDENCE CROSSOVER POINTS OF SAID FIRST AND SECOND OSCILLATOR SIGNALS; (E) SAID FREQUENCY F/N BEING DIFFERENT THAN THE FREQUENCIES OF BOTH SAID FIRST AND SECOND OSCILLATORS; AND (F) CIRCUIT MEANS RESPONSIVE TO SAID COMPARISON SIGNAL AND SAID SECOND OSCILLATOR SIGNAL, WITH RESPECT TO TIME COINCIDENCE, FOR CONTROLLING SAID SECOND OSCILLATOR SIGNAL.
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |