US3613018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A device for detecting the envelope of a single-polarity pulsating voltage
Assignee: Individual
•
Filing: 1969-09-09
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Granted: 1971-10-12
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Expires: 1989-09-09
Abstract
Abstract A device for detecting the envelope of a single-polarity pulsating voltage comprising a fixed memory capacitor with a charge circuit and a discharge circuit, a memory cell controlling the capacitor discharge circuit, a circuit for comparison of the pulsating voltage with the capacitor charge voltage connected to one input of the memory cell, and a source of gate pulses recurring at the pulsation frequency connected to the second input of the memory cell.
Inventors
- 👤 Valentin Mikhailov Sitnichenko
- 👤 Andrei Isakovich Kogut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:00
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/25; H; H03; H03D; H03D1/00; H03D1/14; H03D1/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
A device for detecting the envelope of a single-polarity pulsating voltage comprising a fixed memory capacitor, a charge circuit for said capacitor, said pulsating voltage supplied to said capacitor through said charge circuit, a discharge circuit for said capacitor, a comparator circuit for comparison of said pulsating voltage with the charge voltage of said capacitor, a source of gate pulses recurring at the pulsation frequency of said pulsating voltage, a memory cell with two inputs, one input being connected to said comparator circuit and the other input being connected to said source of the gate pulses; said memory cell controlling said discharge circuit of the capacitor quickly discharging the capacitor to a voltage close to the amplitude of the pulsating voltage when the amplitude of the said pulsating voltage decreases.
Claim 2
Independent Claim
130 words
A device for detecting the envelope of a single-polarity pulsating voltage comprising a fixed memory capacitor, a charge circuit for said capacitor, said pulsating voltage supplied to said capacitor through said charge circuit, a discharge circuit for said capacitor, a comparator circuit for comparison of said pulsating voltage with the charge voltage of said capacitor, a source of gate pulses recurring at the pulsation frequency of said pulsating voltage, a memory cell with two inputs, one input being connected to said comparator circuit and the other input being connected to said source of the gate pulses; said memory cell controlling said discharge circuit of the capacitor quickly discharging the capacitor to a voltage close to the amplitude of the pulsating voltage when the amplitude of the said pulsating voltage decreases.
Claim 3
Dependent Claim
92 words
A device as claimed in claim 1, wherein said comparator circuit comprises a first transistor having an emitter, base and collector, said collector being connected to one side of said capacitor and said base receiving said pulsating voltage, a second transistor having an emitter base and collector, said collector of said first transistor being connected to said Base of said second transistor, said collector of said second transistor being connected to one input of said memory cell, and said emitter of said second transistor being connected to a biasing source of voltage.
Claim 4
Dependent Claim
40 words
A device as claimed in claim 1, wherein said discharge circuit comprises a transistor having an emitter base and collector, said capacitor being connected between said emitter and said collector and said base receiving the output of said memory cell.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |