US3074027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator synchronisation circuits utilising directly applied sync pulses and control voltage
Assignee: Marconis Wireless Telegraph Co Ltd
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Filing: 1960-04-04
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Granted: 1963-01-15
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Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
- 👤 Eric R Rout
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:38
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/12; H04N5/126; H04N5/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN OSCILLATOR SYNCHRONISATION CIRCUIT INCLUDING AN OSCILLATOR, A FREQUENCY DISCRIMINATOR ADAPTED TO GENERATE FROM AN APPLIED SYNCHRONISING SIGNAL A CONTROL VOLTAGE DEPENDENT UPON THE FREQUENCY OF THE SYNCHRONISING SIGNALS, MEANS FOR APPLYING THE CONTROL VOLTAGE TO THE OSCILLATOR TO VARY THE FREE-RUNNING FREQUENCY THEREOF IN SUCH A MANNER THAT THE RATIO BETWEEN THIS FREE-RUNNING FREQUENCY AND THE SYNCHRONISING SIGNAL FREQUENCY IS MAINTAINED APPROXIMATELY CONSTANT, AND MEANS FOR APPLYING THE SYN-
Claim 2
Dependent Claim
70 words
AN OSCILLATOR SYNCHRONISATION CIRCUIT INCLUDING AN OSCILLATOR, A FREQUENCY DISCRIMINATOR ADAPTED TO GENERATE FROM AN APPLIED SYNCHRONISING SIGNAL A CONTROL VOLTAGE DEPENDENT UPON THE FREQUENCY OF THE SYNCHRONISING SIGNALS, MEANS FOR APPLYING THE CONTROL VOLTAGE TO THE OSCILLATOR TO VARY THE FREE-RUNNING FREQUENCY THEREOF IN SUCH A MANNER THAT THE RATIO BETWEEN THIS FREE-RUNNING FREQUENCY AND THE SYNCHRONISING SIGNAL FREQUENCY IS MAINTAINED APPROXIMATELY CONSTANT, AND MEANS FOR APPLYING THE SYN-
References Cited (Backward Citations)
US2654033A
Cited
US2743362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |