Frequency dividing system
Abstract
Abstract A GIVEN SIGNAL IS DERIVED IN ACCURATELY TIMED RELATION WITH A HIGHER FREQUENCY SIGNAL, WHEREIN THE FREQUENCY OF THE LATTER SIGNAL IS OTHER THAN AN INTEGRAL MULTIPLE OF THE FREQUENCY OF THE GIVEN SIGNAL. A CONTROLLED SIGNAL GENERATOR PRODUCES THE GIVEN SIGNAL, AND THE GIVEN SIGNAL IS THEN DIVIDED DOWN TO A THIRD FREQUENCY WHEREIN THE THIRD FREQUENCY IS DESIRABLY THE LARGEST COMMON DIVISOR OF THE GIVEN SIGNAL AND THE HIGHER FREQUENCY SIGNAL. A PHASE DETECTOR SAMPLER COMPARES THE PHASE OF THE HIGHER FREQUENCY SIGNAL WITH THE PHASE OF THE SIGNAL AT THE THIRD FREQUENCY, AND CORRECTION IS MADE IN THE FREQUENCY OF THE GIVEN SIGNAL UNTIL THE PROPER PHASE RELATION IS ACHIEVED BETWEEN THE GIVEN SIGNAL AND THE HIGHER FREQUENCY SIGNAL.
Inventors
- 👤 Stephen A Roth
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |