US3641444A
Expired / Lapsed
US
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Baseline compensating integrator
Assignee: United States Atomic Energy Commission
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Filing: 1970-09-01
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Granted: 1972-02-08
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Expires: 1990-09-01
Abstract
Abstract A device to compensate for predictable variations from a baseline. A circuit stores information sufficient to predict the variation from the baseline and this variation is later subtracted from the total signal by a difference amplifier. A total area integrator may be used with the device to provide additional information.
Inventors
- 👤 Geoffrey P Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:36
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184; G06G7/186; G06G7/1865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A baseline compensating integrator comprising in combination (a) a baseline slope generator including two storage capacitors to store a voltage equal to a change in baseline value, and (b) a baseline initial value circuit connected to a storage capacitor, and (c) a baseline generator integrator receiving an input from both the baseline slope generator and baseline initial value circuit to generate a signal equal to the estimated change in a baseline signal, and (d) a baseline subtraction amplifier which subtracts the output of the baseline generator integrator from an input, said input also being applied through a relay to said baseline slope generator and to said baseline initial value circuit, and (e) a total area integrator connected to said baseline subtraction amplifier.
Claim 2
Dependent Claim
122 words
A baseline compensating integrator comprising in combination (a) a baseline slope generator including two storage capacitors to store a voltage equal to a change in baseline value, and (b) a baseline initial value circuit connected to a storage capacitor, and (c) a baseline generator integrator receiving an input from both the baseline slope generator and baseline initial value circuit to generate a signal equal to the estimated change in a baseline signal, and (d) a baseline subtraction amplifier which subtracts the output of the baseline generator integrator from an input, said input also being applied through a relay to said baseline slope generator and to said baseline initial value circuit, and (e) a total area integrator connected to said baseline subtraction amplifier.
References Cited (Backward Citations)
US3434062A
Cited
US3374435A
Cited
US3360993A
Cited
US3475600A
Cited
US3450867A
Cited
US3515343A
Cited
US3473382A
Cited
US3580243A
Cited
US3584309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |