US3308387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clock synchronizer
Assignee: BAE Systems Space & Mission Systems Inc
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Filing: 1963-09-18
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Granted: 1967-03-07
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Expires: 1983-09-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Hackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:30
CPC Classifications
H; H03; H03D; H03D13/00; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/085; H04; H04L; H04L7/00; H04L7/02; H04L7/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
APPARATUS FOR MAINTAINING THE PHASE OF A CLOCK SIGNAL IN A CONSTANT PHASE RELATIONSHIP WITH AN INCOMING SIGNAL OVER SUBSTANTIAL PERIODS OF TIME AND DURING FREQUENCY VARIATIONS OF THE INCOMING SIGNAL COMPRISING MEANS FOR GENERATING A FIRST SIGNAL, MEANS FOR MAINTAINING THE FREQUENCY OF SAID FIRST SIGNAL AT A FIXED DIFFERENTIAL FROM THE FREQUENCY OF AN INCOMING SIGNAL, MEANS FOR GENERATING A SECOND SIGNAL, MEANS FOR MAINTAINING THE PHASE OF SAID SECOND SIGNAL AT A CONSTANT PHASE RELATIONSHIP WITH THE PHASE OF THE INCOMING SIGNAL, A MIXER FOR MIXING SAID FIRST AND SECOND SIGNALS, AND CIRCUIT MEANS ARRANGED FOR PRODUCING A CLOCK SIGNAL HAVING A FREQUENCY EQUAL TO THE SUM OF THE FREQUENCIES OF SAID FIRST AND SECOND SIGNALS.
Claim 2
Dependent Claim
119 words
APPARATUS FOR MAINTAINING THE PHASE OF A CLOCK SIGNAL IN A CONSTANT PHASE RELATIONSHIP WITH AN INCOMING SIGNAL OVER SUBSTANTIAL PERIODS OF TIME AND DURING FREQUENCY VARIATIONS OF THE INCOMING SIGNAL COMPRISING MEANS FOR GENERATING A FIRST SIGNAL, MEANS FOR MAINTAINING THE FREQUENCY OF SAID FIRST SIGNAL AT A FIXED DIFFERENTIAL FROM THE FREQUENCY OF AN INCOMING SIGNAL, MEANS FOR GENERATING A SECOND SIGNAL, MEANS FOR MAINTAINING THE PHASE OF SAID SECOND SIGNAL AT A CONSTANT PHASE RELATIONSHIP WITH THE PHASE OF THE INCOMING SIGNAL, A MIXER FOR MIXING SAID FIRST AND SECOND SIGNALS, AND CIRCUIT MEANS ARRANGED FOR PRODUCING A CLOCK SIGNAL HAVING A FREQUENCY EQUAL TO THE SUM OF THE FREQUENCIES OF SAID FIRST AND SECOND SIGNALS.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |