US4384257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage stabilized integrator
Assignee: Individual
•
Filing: 1981-05-29
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Granted: 1983-05-17
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Expires: 2001-05-29
Abstract
Abstract An electronic integrator which is insensitive to drift because a storage and forcing circuit maintains the output voltage of the integrator at a constant level.
Inventors
- 👤 William M. Nola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:15
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184; G06G7/186; G06G7/1865
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
200 words
The process of stabilizing an integrator circuit comprising the steps of: first, integrating a signal in an integrator circuit having an input terminal and an output terminal, second, storing the output of the integrator in a storage circuit, said storage circuit having an input and an output, comparing in a comparator means the outputs of the integrator circuit and the storage circuit, said comparator means having a first and second input terminal and an output terminal, sensing voltage differences at said first and second input terminals of said comparator means, signalling a drift compensator circuit means having an input and an output, said drift compensator circuit means comprising means to apply a voltage to said integrator to cause its output to match the output of the storage circuit, successively repeating the aforesaid process so long as the integrator is energized, said circuit including a normally open switch means to close upon a predetermined integrate signal cyclically applied to said integrator; and said circuit means including a normally open second switch means adapted to close to apply an output to the storage circuit, and simultaneously or sequentially opening said first and said second normally open switch means after each integrate cycle.
Claim 2
Dependent Claim
200 words
The process of stabilizing an integrator circuit comprising the steps of: first, integrating a signal in an integrator circuit having an input terminal and an output terminal, second, storing the output of the integrator in a storage circuit, said storage circuit having an input and an output, comparing in a comparator means the outputs of the integrator circuit and the storage circuit, said comparator means having a first and second input terminal and an output terminal, sensing voltage differences at said first and second input terminals of said comparator means, signalling a drift compensator circuit means having an input and an output, said drift compensator circuit means comprising means to apply a voltage to said integrator to cause its output to match the output of the storage circuit, successively repeating the aforesaid process so long as the integrator is energized, said circuit including a normally open switch means to close upon a predetermined integrate signal cyclically applied to said integrator; and said circuit means including a normally open second switch means adapted to close to apply an output to the storage circuit, and simultaneously or sequentially opening said first and said second normally open switch means after each integrate cycle.
Claim 3
Dependent Claim
186 words
An integrator stabilizing circuit having a main input terminal and a main output terminal, said integrator stabilizing circuit comprising, an integrator means having an input and an output, first conductor means electrically connecting the input of the integrator and the main input, first normally open switch means in the first conductor means, a storage circuit means having an input, second conductor means electrically connecting the output of the integrator and the input of the storage circuit means, a comparator having an output and a first and second input, third conductor means interconnecting said first input with the output of said integrator and fourth conductor means interconnecting the output of said storage means and the second input of said comparator means, drift compensator having an input and an output, fifth conductor means connecting the output of the comparator and the input of the drift compensator means, sixth conductor means connecting the output of the drift compensator and the input of the integrator, second normally open switch means in the second conductor neans, and means to close the first and second switch means comprising an integrate logic circuit.
Claim 4
Dependent Claim
186 words
An integrator stabilizing circuit having a main input terminal and a main output terminal, said integrator stabilizing circuit comprising, an integrator means having an input and an output, first conductor means electrically connecting the input of the integrator and the main input, first normally open switch means in the first conductor means, a storage circuit means having an input, second conductor means electrically connecting the output of the integrator and the input of the storage circuit means, a comparator having an output and a first and second input, third conductor means interconnecting said first input with the output of said integrator and fourth conductor means interconnecting the output of said storage means and the second input of said comparator means, drift compensator having an input and an output, fifth conductor means connecting the output of the comparator and the input of the drift compensator means, sixth conductor means connecting the output of the drift compensator and the input of the integrator, second normally open switch means in the second conductor neans, and means to close the first and second switch means comprising an integrate logic circuit.
Claim 5
Dependent Claim
26 words
The device as set forth in claim 2 wherein said means to close comprises means to simultaneously or sequentially close said first and second switch means.
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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |