US3268831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic frequency controlled multi-channel generator
Assignee: US Philips Corp
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Filing: 1963-11-12
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Granted: 1966-08-23
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Noordanus Johannes
- 👤 Rosier Gerardus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
H; H04; H04J; H04J1/00; H04J1/02; H04J1/06; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/22; H03L7/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
326 words
A MULTICHANNEL GENERATOR FOR PRODUCING A STABILIZED OSCILLATION ADJUSTABLE IN ROUGH AND FINE FREQUENCY STEPS COMPRISING AN OUTPUT OSCILLATOR HAVING AN OUTPUT SIGNAL OF A FREQUENCY VARIABLE IN ACCORDANCE WITH VARIATIONS OF A FIRST INTERMEDIATE SIGNAL APPLIED THERETO, A MAIN AUTOMATIC FREQUENCY CONTROL LOOP FOR PROVIDING SAID OSCILLATOR WITH SAID FIRST INTERMEDIATE SIGNAL AND INCLUDING A FIRST MIXING STAGE HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID OSCILLATOR, A SECOND MIXING STAGE HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID FIRST MIXING STAGE AND MEANS FOR APPLYING THE OUTPUT OF SAID SECOND MIXING STAGE TO SAID OSCILLATOR, A ROUGH STEP OSCILLATOR HAVING AN OUTPUT SIGNAL VARIABLE IN FREQUENCY IN ACCORDANCE WITH VARIATIONS OF A SECOND INTERMEDIATE SIGNAL APPLIED THERETO, AN AUTOMATIC FREQUENCY CONTROL LOOP FOR PROVIDING SAID ROUGH STEP OSCILLATOR WITH SAID SECOND INTERMEDIATE SIGNAL AND INCLUDING A ROUGH STEP MIXER HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID ROUGH STEP OSCILLATOR AND MEANS COUPLING THE OUTPUT OF SAID ROUGH STEP MIXER TO SAID ROUGH STEP OSCILLATOR, A FINE-STEP OSCILLATOR HAVING AN OUTPUT SIGNAL VARIABLE IN FREQUENCY IN ACCORDANCE WITH VARIATIONS OF A THIRD INTERMEDIATE SIGNAL APPLIED THERETO, AN AUTOMATIC FREQUENCY CONTROL LOOP FOR PROVIDING SAID FINE STEP OSCILLATOR WITH SAID THIRD INTERMEDIATE SIGNAL AND INCLUDING AN ADJUSTABLE FREQUENCY DIVIDER HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID FINE STEP OSCILLATOR, A FINE STEP MIXER HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID ADJUSTABLE FREQUENCY DIVIDER AND MEANS COUPLING THE OUTPUT OF SAID FINE STEP MIXER TO SAID FINE STEP OSCILLATOR, A CONTROL FREQUENCY SIGNAL SOURCE, FIRST MEANS COUPLING SAID SOURCE TO ANOTHER INPUT OF SAID ROUGH STEP MIXER, SECOND MEANS COUPLING SAID SOURCE TO ANOTHER INPUT OF SAID FINE STEP MIXER, MEANS COUPLING THE OUTPUT FREQUENCY SIGNAL OF SAID ROUGH STEP OSCILLATOR TO ANOTHER INPUT OF SAID FIRST MIXING STAGE, AND MEANS COUPLING THE OUTPUT FREQUENCY SIGNAL TO SAID FINE STEP OSCILLATOR TO ANOTHER INPUT OF SAID SECOND MIXING STAGE.
Claim 2
Dependent Claim
326 words
A MULTICHANNEL GENERATOR FOR PRODUCING A STABILIZED OSCILLATION ADJUSTABLE IN ROUGH AND FINE FREQUENCY STEPS COMPRISING AN OUTPUT OSCILLATOR HAVING AN OUTPUT SIGNAL OF A FREQUENCY VARIABLE IN ACCORDANCE WITH VARIATIONS OF A FIRST INTERMEDIATE SIGNAL APPLIED THERETO, A MAIN AUTOMATIC FREQUENCY CONTROL LOOP FOR PROVIDING SAID OSCILLATOR WITH SAID FIRST INTERMEDIATE SIGNAL AND INCLUDING A FIRST MIXING STAGE HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID OSCILLATOR, A SECOND MIXING STAGE HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID FIRST MIXING STAGE AND MEANS FOR APPLYING THE OUTPUT OF SAID SECOND MIXING STAGE TO SAID OSCILLATOR, A ROUGH STEP OSCILLATOR HAVING AN OUTPUT SIGNAL VARIABLE IN FREQUENCY IN ACCORDANCE WITH VARIATIONS OF A SECOND INTERMEDIATE SIGNAL APPLIED THERETO, AN AUTOMATIC FREQUENCY CONTROL LOOP FOR PROVIDING SAID ROUGH STEP OSCILLATOR WITH SAID SECOND INTERMEDIATE SIGNAL AND INCLUDING A ROUGH STEP MIXER HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID ROUGH STEP OSCILLATOR AND MEANS COUPLING THE OUTPUT OF SAID ROUGH STEP MIXER TO SAID ROUGH STEP OSCILLATOR, A FINE-STEP OSCILLATOR HAVING AN OUTPUT SIGNAL VARIABLE IN FREQUENCY IN ACCORDANCE WITH VARIATIONS OF A THIRD INTERMEDIATE SIGNAL APPLIED THERETO, AN AUTOMATIC FREQUENCY CONTROL LOOP FOR PROVIDING SAID FINE STEP OSCILLATOR WITH SAID THIRD INTERMEDIATE SIGNAL AND INCLUDING AN ADJUSTABLE FREQUENCY DIVIDER HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID FINE STEP OSCILLATOR, A FINE STEP MIXER HAVING AN INPUT COUPLED TO THE OUTPUT OF SAID ADJUSTABLE FREQUENCY DIVIDER AND MEANS COUPLING THE OUTPUT OF SAID FINE STEP MIXER TO SAID FINE STEP OSCILLATOR, A CONTROL FREQUENCY SIGNAL SOURCE, FIRST MEANS COUPLING SAID SOURCE TO ANOTHER INPUT OF SAID ROUGH STEP MIXER, SECOND MEANS COUPLING SAID SOURCE TO ANOTHER INPUT OF SAID FINE STEP MIXER, MEANS COUPLING THE OUTPUT FREQUENCY SIGNAL OF SAID ROUGH STEP OSCILLATOR TO ANOTHER INPUT OF SAID FIRST MIXING STAGE, AND MEANS COUPLING THE OUTPUT FREQUENCY SIGNAL TO SAID FINE STEP OSCILLATOR TO ANOTHER INPUT OF SAID SECOND MIXING STAGE.
References Cited (Backward Citations)
US2843740A
Cited
US2888562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |