Patent US6436114B1 successfully refreshed from Google Patents.
US3130375A
Expired / Lapsed
US
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Automatic frequency control apparatus
Assignee: Honeywell Inc
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Filing: 1961-03-01
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Granted: 1964-04-21
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Expires: 1981-03-01
Abstract
No abstract record available.
Inventors
- 👤 Donald J Rotier
- 👤 John F Storm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:11
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/14; H03K; H03K5/00; H03K5/13; H03K5/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
APPARATUS OF THE CLASS DESCRIBED COMPRISING: FIRST OSCILLATOR MEANS HAVING AN OUTPUT; SECOND OSCILLATOR MEANS HAVING AN INPUT AND OUTPUT, THE PHASE OF SAID SECOND OSCILLATOR MEANS BEING VARIABLE IN RESPONSE TO AN INPUT SIGNAL; MEANS ADAPTED TO CONNECT THE INPUT OF SAID SECOND OSCILLATOR TO A SOURCE OF INPUT SIGNALS; BISTABLE MEANS HAVING AN INPUT AND OUTPUT; FREQUENCY DIVIDER MEANS CONNECTING THE OUTPUT OF SAID FIRST OSCILLATOR TO THE INPUT OF SAID BISTABLE MEANS; MEANS CONNECTING THE OUTPUT OF SAID SECOND OSCILLATOR TO THE INPUT OF SAID BISTABLE MEANS; LOAD MEANS CONNECTED TO THE OUTPUT OF SAID BISTABLE MEANS; PHASE COMPARATOR MEANS HAVING A FIRST AND A SECOND INPUT AND AN OUTPUT, SAID PHASE COMPARATOR MEANS PRODUCING AN OUTPUT PROPORTIONAL TO THE DIFFERENCE IN PHASE BETWEEN SIGNALS TO ITS INPUTS; MEANS CONNECTING THE OUTPUT OF SAID FIRST OSCILLATOR TO THE FIRST INPUT OF SAID COMPARATOR; MEANS CONNECTING THE OUTPUT OF SAID SECOND OSCILLATOR TO THE SECOND INPUT OF SAID COMPARATOR; AND MEANS CONNECTING THE OUTPUT OF SAID COMPARATOR TO THE INPUT OF SAID SECOND OSCILLATOR AT ALL TIMES EXCEPT WHEN AN INPUT SIGNAL IS APPLIED TO SAID SECOND OSCILLATOR.
Claim 2
Dependent Claim
190 words
APPARATUS OF THE CLASS DESCRIBED COMPRISING: FIRST OSCILLATOR MEANS HAVING AN OUTPUT; SECOND OSCILLATOR MEANS HAVING AN INPUT AND OUTPUT, THE PHASE OF SAID SECOND OSCILLATOR MEANS BEING VARIABLE IN RESPONSE TO AN INPUT SIGNAL; MEANS ADAPTED TO CONNECT THE INPUT OF SAID SECOND OSCILLATOR TO A SOURCE OF INPUT SIGNALS; BISTABLE MEANS HAVING AN INPUT AND OUTPUT; FREQUENCY DIVIDER MEANS CONNECTING THE OUTPUT OF SAID FIRST OSCILLATOR TO THE INPUT OF SAID BISTABLE MEANS; MEANS CONNECTING THE OUTPUT OF SAID SECOND OSCILLATOR TO THE INPUT OF SAID BISTABLE MEANS; LOAD MEANS CONNECTED TO THE OUTPUT OF SAID BISTABLE MEANS; PHASE COMPARATOR MEANS HAVING A FIRST AND A SECOND INPUT AND AN OUTPUT, SAID PHASE COMPARATOR MEANS PRODUCING AN OUTPUT PROPORTIONAL TO THE DIFFERENCE IN PHASE BETWEEN SIGNALS TO ITS INPUTS; MEANS CONNECTING THE OUTPUT OF SAID FIRST OSCILLATOR TO THE FIRST INPUT OF SAID COMPARATOR; MEANS CONNECTING THE OUTPUT OF SAID SECOND OSCILLATOR TO THE SECOND INPUT OF SAID COMPARATOR; AND MEANS CONNECTING THE OUTPUT OF SAID COMPARATOR TO THE INPUT OF SAID SECOND OSCILLATOR AT ALL TIMES EXCEPT WHEN AN INPUT SIGNAL IS APPLIED TO SAID SECOND OSCILLATOR.
References Cited (Backward Citations)
US2774872A
Cited
US2963648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |