US3105205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase modulator
Assignee: Vector Manufacturing Co Inc
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Filing: 1960-09-22
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Granted: 1963-09-24
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Expires: 1980-09-22
Abstract
No abstract record available.
Inventors
- 👤 Charles J Weidknecht
- 👤 Rosen Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:00
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/22; H03C3/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PHASE MODULATOR COMPRISING A TRANSISTOR AND TUNED CIRCUIT ENERGIZED THEREBY, SAID TUNED CIRCUIT INCLUDING A CAPACITOR AND AN INDUCTANCE, A VOLTAGE SENSITIVE CAPACITOR DIODE CONNECTED TO SAID TUNED CIRCUIT AND SAID TUNED CIRCUIT AND VOLTAGE SENSITIVE DIODE NORMALLY BEING RESONANT AT A SELECTED CARRIER FREQUENCY, MEANS INTRODUCING A FIXED CARRIER FREQUENCY SIGNAL TO ENERGIZE SAID TRANSISTOR, A DECOUPLING CIRCUIT RESPONSIVE TO A LOWER FREQUENCY MODULATING SIGNAL TO PROVIDE A VARYING VOLTAGE ACROSS SAID VOLTAGE SENSITIVE DIODE THEREBY TO CHANGE THE CAPACITIVE REACTANCE THEREOF IN PROPORTION TO SAID MODULATING SIGNAL AND VARY THE RESONANT FREQUENCY OF THE COMBINED TUNED CIRCUIT AND DIODE, AND A CAPACITOR IN A SERIES CONNECTION BETWEEN THE DIODE AND TUNED CIRCUIT FOR PREVENTING THE LOWER FREQUENCY MODULATING SIGNAL FROM ENERGIZING SAID TUNED CIRCUIT.
Claim 2
Dependent Claim
127 words
A PHASE MODULATOR COMPRISING A TRANSISTOR AND TUNED CIRCUIT ENERGIZED THEREBY, SAID TUNED CIRCUIT INCLUDING A CAPACITOR AND AN INDUCTANCE, A VOLTAGE SENSITIVE CAPACITOR DIODE CONNECTED TO SAID TUNED CIRCUIT AND SAID TUNED CIRCUIT AND VOLTAGE SENSITIVE DIODE NORMALLY BEING RESONANT AT A SELECTED CARRIER FREQUENCY, MEANS INTRODUCING A FIXED CARRIER FREQUENCY SIGNAL TO ENERGIZE SAID TRANSISTOR, A DECOUPLING CIRCUIT RESPONSIVE TO A LOWER FREQUENCY MODULATING SIGNAL TO PROVIDE A VARYING VOLTAGE ACROSS SAID VOLTAGE SENSITIVE DIODE THEREBY TO CHANGE THE CAPACITIVE REACTANCE THEREOF IN PROPORTION TO SAID MODULATING SIGNAL AND VARY THE RESONANT FREQUENCY OF THE COMBINED TUNED CIRCUIT AND DIODE, AND A CAPACITOR IN A SERIES CONNECTION BETWEEN THE DIODE AND TUNED CIRCUIT FOR PREVENTING THE LOWER FREQUENCY MODULATING SIGNAL FROM ENERGIZING SAID TUNED CIRCUIT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |