US3336440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for locking an oscillator to a reference frequency having a particular shapedwaveform to facilitate synchronization
Assignee: General Electric Co
•
Filing: 1964-05-29
•
Granted: 1967-08-15
•
Expires: 1984-05-29
Abstract
No abstract record available.
Inventors
- 👤 James E Blake
- 👤 Roman Z Zaputowycz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:53
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/18; H03L7/183; H04; H04N; H04N5/00; H04N5/04; H04N5/06; H04N5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SYSTEM FOR LOCKING AN OSCILLATOR TO A REFERENCE FREQUENCY, SAID SYSTEM COMPRISING; (A) PHASE DETECTOR MEANS CONNECTED TO SAID OSCILLATOR TO APPLY A CONTROL SIGNAL THERETO TO LOCK SAID OSCILLATOR TO SAID REFERENCE FREQUENCY, (B) MEANS FOR APPLYING A NONSINUSOIDAL WAVE AT SAID REFERENCE FREQUENCY TO SAID PHASE DETECTOR MEANS, SAID NONSINUSOIDAL WAVE BEING SUBSTANTIALLY HALF WAVE SYMMETRICAL AND EACH CYCLE OF SAID NONSINUSOIDAL WAVE HAVING A RELATIVELY SMALL SLOPE PORTION IN THE REGION PROXIMATE TO THE POINT OF SYMMETRY OF SAID CYCLE AND HAVING LARGER SLOPE PORTIONS IN THE REGIONS FURTHER REMOVED FROM SAID POINT OF SYMMETRY, AND (C) MEANS FOR APPLYING A PORTION OF THE OUTPUT OF SAID OSCILLATOR TO SAID PHASE DETECTOR MEANS, (D) WHEREBY SAID PHASE DETECTOR DEVELOPS A CONTROL SIGNAL PROPORTIONAL TO THE PHASE DIFFERENCE BETWEEN SAID OSCILLATOR OUTPUT AND SAID NONSINUSOIDAL WAVE, SAID CONTROL SIGNAL BEING A SMALLER PERCENTAGE OF
Claim 2
Independent Claim
147 words
A SYSTEM FOR LOCKING AN OSCILLATOR TO A REFERENCE FREQUENCY, SAID SYSTEM COMPRISING; (A) PHASE DETECTOR MEANS CONNECTED TO SAID OSCILLATOR TO APPLY A CONTROL SIGNAL THERETO TO LOCK SAID OSCILLATOR TO SAID REFERENCE FREQUENCY, (B) MEANS FOR APPLYING A NONSINUSOIDAL WAVE AT SAID REFERENCE FREQUENCY TO SAID PHASE DETECTOR MEANS, SAID NONSINUSOIDAL WAVE BEING SUBSTANTIALLY HALF WAVE SYMMETRICAL AND EACH CYCLE OF SAID NONSINUSOIDAL WAVE HAVING A RELATIVELY SMALL SLOPE PORTION IN THE REGION PROXIMATE TO THE POINT OF SYMMETRY OF SAID CYCLE AND HAVING LARGER SLOPE PORTIONS IN THE REGIONS FURTHER REMOVED FROM SAID POINT OF SYMMETRY, AND (C) MEANS FOR APPLYING A PORTION OF THE OUTPUT OF SAID OSCILLATOR TO SAID PHASE DETECTOR MEANS, (D) WHEREBY SAID PHASE DETECTOR DEVELOPS A CONTROL SIGNAL PROPORTIONAL TO THE PHASE DIFFERENCE BETWEEN SAID OSCILLATOR OUTPUT AND SAID NONSINUSOIDAL WAVE, SAID CONTROL SIGNAL BEING A SMALLER PERCENTAGE OF
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |