Patent US3188455A successfully refreshed from Google Patents.
US3188455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrating means
Assignee: International Business Machines Corp
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Filing: 1960-12-29
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Granted: 1965-06-08
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Jr John R Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:18
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
APPARATUS FOR INTEGRATING AN ELECTRICAL SIGNAL OVER A RELATIVELY LONG DUTY CYCLE AND TRANSFORMING SAID INTEGRAL INTO STORED DIGITAL FORM, COMPRISING: AN INTEGRATING OPERATIONAL AMPLIFIER HAVING AN INPUT FOR RECEIVING THE ELECTRICAL SIGNAL TO BE INTEGRATED AND AN OUTPUT FOR PROVIDING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE TIME INTEGRAL OF SAID INPUT SIGNAL; GATING MEANS CONNECTED TO THE OUTPUT OF SAID OPERATIONAL AMPLIFIER RESPONSIVE TO SIGNALS RECEIVED THEREFROM HAVING MAGNITUDES IN EXCESS OF A PREDETERMINED THRESHOLD VALUE FOR PROVIDING AN EXCITATION SIGNAL; AN ELECTRICAL PULSE GENERATOR ACTUATED BY SAID EXCITATION SIGNAL FOR PROVIDING OUTPUT PULSES OF SUBSTANTIALLY CONSTANT DURATION AND AMPLITUDE IN RESPONSE THERETO; PULSE COUNTING MEANS OPERABLY CONNECTED TO SAID PULSE GENERATOR; AND MEANS FOR PRESENTING THE PULSES AS NEGATIVE FEEDBACK TO THE INPUT OF SAID OPERATIONAL AMPLIFIER THEREBY REDUCING THE INPUT SIGNAL TO SAID AMPLIFIER.
Claim 2
Dependent Claim
137 words
APPARATUS FOR INTEGRATING AN ELECTRICAL SIGNAL OVER A RELATIVELY LONG DUTY CYCLE AND TRANSFORMING SAID INTEGRAL INTO STORED DIGITAL FORM, COMPRISING: AN INTEGRATING OPERATIONAL AMPLIFIER HAVING AN INPUT FOR RECEIVING THE ELECTRICAL SIGNAL TO BE INTEGRATED AND AN OUTPUT FOR PROVIDING AN ELECTRICAL SIGNAL PROPORTIONAL TO THE TIME INTEGRAL OF SAID INPUT SIGNAL; GATING MEANS CONNECTED TO THE OUTPUT OF SAID OPERATIONAL AMPLIFIER RESPONSIVE TO SIGNALS RECEIVED THEREFROM HAVING MAGNITUDES IN EXCESS OF A PREDETERMINED THRESHOLD VALUE FOR PROVIDING AN EXCITATION SIGNAL; AN ELECTRICAL PULSE GENERATOR ACTUATED BY SAID EXCITATION SIGNAL FOR PROVIDING OUTPUT PULSES OF SUBSTANTIALLY CONSTANT DURATION AND AMPLITUDE IN RESPONSE THERETO; PULSE COUNTING MEANS OPERABLY CONNECTED TO SAID PULSE GENERATOR; AND MEANS FOR PRESENTING THE PULSES AS NEGATIVE FEEDBACK TO THE INPUT OF SAID OPERATIONAL AMPLIFIER THEREBY REDUCING THE INPUT SIGNAL TO SAID AMPLIFIER.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |