US3099799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency to voltage converter
Assignee: Individual
•
Filing: 1958-12-03
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Granted: 1963-07-30
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Expires: 1978-12-03
Abstract
No abstract record available.
Inventors
- 👤 George S Bahrs
- 👤 Dalton W Martin
- 👤 Malcolm M Mcwhorter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:53
CPC Classifications
H; H03; H03K; H03K9/00; H03K9/06; G; G01; G01R; G01R23/00; G01R23/02; G01R23/06; G01R23/09; H03D; H03D3/00; H03D3/02; H03D3/06; H03D3/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
137 words
A FREQUENCY TO VOLTAGE CONVERTER COMPRISING A PRECISION CAPACITOR HAVING FIRST AND SECOND TERMINALS, MEANS CONNECTED TO RECEIVE AN INPUT SIGNAL AND TO CHARGE AND DISCHARGE SAID CAPACITOR IN SUCH A MANNER THAT THE VOLTAGE OF THE FIRST TERMINAL OF SAID CAPACITOR IS SWUNG BETWEEN PREDETERMINED LIMITS A FIXED NUMBER OF TIMES FOR EACH CYCLE OF THE INPUT SIGNAL, SWITCHING MEANS CONNECTED IN CIRCUIT WITH THE OTHER TERMINAL OF SAID CAPACITOR SERVING TO CONDUCT CHARGING AND DISCHARGING CURRENT THEREFROM, AMPLIFYING MEANS HAVING LOW INPUT IMPEDANCE, HIGH OUTPUT IMPEDANCE, HIGH VOLTAGE GAIN, AND RELATIVELY CONSTANT CURRENT GAIN CONNECTED IN CIRCUIT WITH SAID SWITCHING MEANS SERVING TO PASS INSTANTANEOUSLY AT LEAST ONE OF SAID CURRENTS, AND MEANS CONNECTED TO RECEIVE THE OUTPUT OF SAID AMPLIFIER SERVING TO DERIVE AN OUTPUT SIGNAL WHICH IS PROPORTIONAL TO THE AVERAGE CHARGING CURRENT.
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |