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US3119992A Expired / Lapsed US ⏱️ 0.0 years remaining

Dead time system for analog computer

Assignee: Phillips Petroleum Co
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Filing: 1958-10-30
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Granted: 1964-01-28
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Expires: 1978-10-30
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Abstract

No abstract record available.

Inventors

  • 👤 Dale A Fluegel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 07:47
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/34; H03M1/38; H03M1/44

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 277 words
APPARATUS FOR CONVERTING ANALOG SIGNALS TO DIGITAL BITS COMPRISING A FIRST CIRCUIT THAT INCLUDES A FIRST CAPACITOR; A SECOND CAPACITOR; MEANS FOR APPLYING AN ANALOG SIGNAL TO SAID FIRST CAPACITOR FOR A FIRST PRESELECTED INTERVAL OF TIME; MEANS FOR CONNECTING SAID SECOND CAPACITOR IN PARALLEL WITH SAID FIRST AND SECOND INTERVALS ALTERNATELY OCCURRING; MEANS CONTINUOUSLY CONNECTED TO SAID SECOND CAPACITOR FOR PRODUCING A SIGNAL OF ONE POLARITY REPRESENTATIVE OF THE CHARGE THEREON; A PLURALITY OF SERIESCONNECTED SECOND CIRCUITS, ONE OF WHICH IS CONNECTED TO THE OUTPUT OF SAID FIRST CIRCUIT, EACH OF SAID SECOND CIRCUITS COMPRISING FIRST AND SECOND UNITY GAIN PHASE REVERSING AMPLIFIERS EACH HAVING AN INPUT AND AN OUTPUT TERMINAL, A SUMMING CIRCUIT COMPRISING FIRST AND SECOND RESISTORS HAVING A COMMON JUNCTION, SAID FIRST RESISTOR BEING CONNECTED IN SERIES BETWEEN SAID FIRST AMPLIFIER OUTPUT TERMINAL AND SAID SECOND AMPLIFIER INPUT TERMINAL, A YES-NO CIRCUIT, AND MEANS FOR CONNECTING SAID YES-NOT CIRCUIT AND SAID SECOND RESISTOR IN SERIES BETWEEN SAID FIRST AMPLIFIER OUTPUT TERMINAL AND SAID SECOND AMPLIFIER INPUT TERMINAL; A TIMING PULSE GENERATOR; A MEANS FOR APPLYING A SIGNAL TO A RECORDING MEDIUM; AND A PLURALITY OF MEANS, EACH OF WHICH IS RESPONSIVE TO THE COINCIDENCE OF PULSES FROM SAID GENERATOR WITH A SIGNAL FROM A YES-NO CIRCUIT CONNECTED THERETO, FOR PREPARING SAID MEANS FOR APPLYING TO OPERATE; MEANS FOR CONNECTING SAID SECOND CIRCUITS IN SERIES BY CONNECTING THE OUTPUT TERMINAL OF THE SECOND AMPLIFIER IN ONE SECOND CIRCUIT TO THE INPUT TERMINAL OF THE FIRST AMPLIFIER IN THE NEXT-OCCURRING SECOND CIRCUIT; AND MEANS FOR BIASING THE RESPECTIVE YES-NO CIRCUITS, THE RATIO OF THE BIAS APPLIED THEREBY IN SUCCESSIVE SECOND CIRCUITS BEING 2 TO 1.

References Cited (Backward Citations)

US2843939A Cited
US2881416A Cited
US2867797A Cited
US2725549A Cited
US2729812A Cited
US2889549A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-01-27 1967-07-29 1968-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-01-27 1971-07-29 1972-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-01-27 1975-07-29 1976-01-28 $7700.00 Window Closed / Lapsed

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