US3092777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for use in phasesensitive control amplifiers
Assignee: US Philips Corp
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Filing: 1959-01-23
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Granted: 1963-06-04
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Expires: 1979-01-23
Abstract
No abstract record available.
Inventors
- 👤 Rusche Georg
- 👤 Grunwaldt Gottfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:10
CPC Classifications
H; H02; H02P; H02P23/00; H02P23/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
A PHASE SENSITIVE CONTROL AMPLIFIER CIRCUIT COMPRISING A FIRST SOURCE OF ALTERNATING VOLTAGE OF A FIRST FREQUENCY, A SECOND SOURCE OF ALTERNATING VOLTAGE OF A SECOND FREQUENCY HIGHER THAN SAID FIRST FREQUENCY, FIRST MODULATOR MEANS CONNECTED TO SAID FIRST AND SECOND SOURCES TO PROVIDE AN OUTPUT VOLTAGE OF SAID SECOND FREQUENCY MODULATED WITH THE VOLTAGE OF SAID FIRST FREQUENCY, A SOURCE OF MEASURING VALUES, MEANS CONNECTED TO SAID SECOND SOURCE FOR CONVERTING SAID MEASURING VALUES INTO A MEASURING VOLTAGE OF SAID SECOND FREQUENCY HAVING A PHASE AND AMPLITUDE DEPENDENT UPON SAID MEASURING VALUES, MEANS AMPLIFYING SAID MEASURING VOLTAGE, AND MIXER MEANS FOR MIXING SAID MODULATED OUTPUT VOLTAGE WITH SAID AMPLIFIED MEASURING VOLTAGE TO PROVIDE A CONTROL VOLTAGE OF SAID FIRST FREQUENCY HAVING A PHASE AND AMPLITUDE DEPENDENT UPON SAID MEASURING VALUE.
References Cited (Backward Citations)
US2476496A
Cited
US2931984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |