US3119024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parametric storage element for digital computers
Assignee: NEC Corp
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Filing: 1961-10-16
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Granted: 1964-01-21
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Expires: 1981-10-16
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 |