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US3119024A Expired / Lapsed US ⏱️ 0.0 years remaining

Parametric storage element for digital computers

Assignee: NEC Corp
•
Filing: 1961-10-16
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Granted: 1964-01-21
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Expires: 1981-10-16
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Abstract

No abstract record available.

Inventors

  • 👤 Endo Yoshiaki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 09:10
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 173 words
A PARAMETRON COMPRISING A RESONANT CIRCUIT CONTAINING A VARIABLE REACTIVE ELEMENT, PUMP INPUT MEANS COUPLED TO SAID VARIABLE REACTIVE ELEMENT, SAID PUMP INPUT MEANS BEING ADAPTED TO RECEIVE A PUMP INPUT SIGNAL OPERABLE TO VARY SAID VARIABLE REACTIVE ELEMENT AT TWICE THE NOMINAL RESONANT FREQUENCY OF SAID RESONANT CIRCUIT, AN INFORMATION INPUT TRANSFORMER COUPLED TO SAID RESONANT CIRCUIT, SAID INFORMATION INPUT TRANSFORMER HAVING A SATURABLE CORE WITH PRIMARY, SECONDARY, AND CONTROL WINDINGS THEREON, SAID SECONDARY WINDING BEING COUPLED TO SAID RESONANT CIRCUIT, SAID PRIMARY WINDING BEING ADAPTED TO RECEIVE AN INFORMATION INPUT SIGNAL, SAID CONTROL WINDING BEING COUPLED TO A BIAS SOURCE ADAPTED TO SATURATE SAID CORE WHEN ENERGIZED, AND SWITCH MEANS COUPLED BETWEEN SAID BIAS SOURCE AND SAID PUMP INPUT MEANS, SAID SWITCH MEANS BEING ADAPTED TO ENERGIZE SAID BIAS SOURCE IN RESPONSE TO A PUMP INPUT SIGNAL TO SAID PUMP INPUT MEANS AND TO DE-ENERGIZE SAID BIAS SOURCE IN RESPONSE TO THE ABSENCE OF A PUMP INPUT SIGNAL TO SAID PUMP INPUT MEANS, AND OUTPUT MEANS COUPLED TO SAID RESONANT CIRCUIT.
Claim 2
Dependent Claim 173 words
A PARAMETRON COMPRISING A RESONANT CIRCUIT CONTAINING A VARIABLE REACTIVE ELEMENT, PUMP INPUT MEANS COUPLED TO SAID VARIABLE REACTIVE ELEMENT, SAID PUMP INPUT MEANS BEING ADAPTED TO RECEIVE A PUMP INPUT SIGNAL OPERABLE TO VARY SAID VARIABLE REACTIVE ELEMENT AT TWICE THE NOMINAL RESONANT FREQUENCY OF SAID RESONANT CIRCUIT, AN INFORMATION INPUT TRANSFORMER COUPLED TO SAID RESONANT CIRCUIT, SAID INFORMATION INPUT TRANSFORMER HAVING A SATURABLE CORE WITH PRIMARY, SECONDARY, AND CONTROL WINDINGS THEREON, SAID SECONDARY WINDING BEING COUPLED TO SAID RESONANT CIRCUIT, SAID PRIMARY WINDING BEING ADAPTED TO RECEIVE AN INFORMATION INPUT SIGNAL, SAID CONTROL WINDING BEING COUPLED TO A BIAS SOURCE ADAPTED TO SATURATE SAID CORE WHEN ENERGIZED, AND SWITCH MEANS COUPLED BETWEEN SAID BIAS SOURCE AND SAID PUMP INPUT MEANS, SAID SWITCH MEANS BEING ADAPTED TO ENERGIZE SAID BIAS SOURCE IN RESPONSE TO A PUMP INPUT SIGNAL TO SAID PUMP INPUT MEANS AND TO DE-ENERGIZE SAID BIAS SOURCE IN RESPONSE TO THE ABSENCE OF A PUMP INPUT SIGNAL TO SAID PUMP INPUT MEANS, AND OUTPUT MEANS COUPLED TO SAID RESONANT CIRCUIT.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-01-20 1967-07-22 1968-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-01-20 1971-07-22 1972-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-01-20 1975-07-22 1976-01-21 $7700.00 Window Closed / Lapsed

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