US3211925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logic circuit utilizing storage diodes and negative resistance diode
Assignee: Unisys Corp
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Filing: 1963-02-11
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Granted: 1965-10-12
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Woo F Chow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:11
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/10; H03K3/00; H03K3/02; H03K3/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
IN COMBINATION, INPUT SIGNAL SUPPLYING MEANS CAPABLE OF SUPPLYING AN INPUT SIGNAL HAVING TWO DISTINCT LEVELS, PULSE SUPPLYING MEANS FOR PROVIDING PERIODIC PULSES SELECTIVELY BI-LATERALLY CONDUCTIVE MEANS CONNECTED BETWEEN SAID INPUT SUPPLYING MEANS AND SAID PULSE SUPPLYING MEANS, SAID SELECTIVELY BI-LATERALLY CONDUCTIVE MEANS CHARACTERIZED BY CHARGE, STORAGE CAPABILITIES WHEN A FORWARD CURRENT EXISTS THEREIN, SAID SELECTIVELY BILATERALLY CONDUCTIVE MEANS PASSING REVERSE CURRENT THERETHROUGH TO SAID INPUT MANS IN RESPONSE TO A PULSE FROM SAID PULSE SUPPLYING MEANS ONLY WHEN CHARGE IS STORED IN SAID SELECTIVELY BILATERALLY CONDUCTIVE MEANS, A BISTABLE SWITCHING DEVICE CHARACTERIZED BY AMPLIFICATION CAPABILITIES, BIAS MEANS CONNECTED TO SAID BISTABLE DEVICE TO NORMALLY BIAS SAID DEVICE IN ONE OF THE STABLE OPERATING STATES THEREOF, COUPLING MEANS CONNECTED TO SAID PULSE SUPPLYING MEANS AND TO SAID BISTABLE DEVICE, SAID COUPLING MEANS EXHIBITING NO CHARGE STORAGE CAPABILITES AND BEING CHARACTERIZED BY UNILATERAL CONDUCTIVE CAPABILITIES TO CONDUCT CURRENT THERETHROUGH FROM SAID PULSE SUPPLYING MEANS TO SAID BISTABLE DEVICE ONLY IN THE ABSENCE OF REVERSE CURRENT IN SAID SELECTIVELY BILATERALLY CONDUCTIVE MEANS, SAID BISTABLE DEVICE ADAPTED TO CHANGE THE STABLE OPERATING STATE IN RESPONSE TO CONDUCTION BY SAID COUPLING MEANS OUTPUT MEANS CONNECTED TO SAID BISTABLE DEVICE, AND RESET MEANS CONNECTED TO SAID BISTABLE DEVICE, AND RESET MEANS CONNECTED TO SAID BISTABLE DEVICE TO RETURN SAID BISTABLE DEVICE TO SAID ONE STABLE OPERATING STATE.
Claim 2
Dependent Claim
222 words
IN COMBINATION, INPUT SIGNAL SUPPLYING MEANS CAPABLE OF SUPPLYING AN INPUT SIGNAL HAVING TWO DISTINCT LEVELS, PULSE SUPPLYING MEANS FOR PROVIDING PERIODIC PULSES SELECTIVELY BI-LATERALLY CONDUCTIVE MEANS CONNECTED BETWEEN SAID INPUT SUPPLYING MEANS AND SAID PULSE SUPPLYING MEANS, SAID SELECTIVELY BI-LATERALLY CONDUCTIVE MEANS CHARACTERIZED BY CHARGE, STORAGE CAPABILITIES WHEN A FORWARD CURRENT EXISTS THEREIN, SAID SELECTIVELY BILATERALLY CONDUCTIVE MEANS PASSING REVERSE CURRENT THERETHROUGH TO SAID INPUT MANS IN RESPONSE TO A PULSE FROM SAID PULSE SUPPLYING MEANS ONLY WHEN CHARGE IS STORED IN SAID SELECTIVELY BILATERALLY CONDUCTIVE MEANS, A BISTABLE SWITCHING DEVICE CHARACTERIZED BY AMPLIFICATION CAPABILITIES, BIAS MEANS CONNECTED TO SAID BISTABLE DEVICE TO NORMALLY BIAS SAID DEVICE IN ONE OF THE STABLE OPERATING STATES THEREOF, COUPLING MEANS CONNECTED TO SAID PULSE SUPPLYING MEANS AND TO SAID BISTABLE DEVICE, SAID COUPLING MEANS EXHIBITING NO CHARGE STORAGE CAPABILITES AND BEING CHARACTERIZED BY UNILATERAL CONDUCTIVE CAPABILITIES TO CONDUCT CURRENT THERETHROUGH FROM SAID PULSE SUPPLYING MEANS TO SAID BISTABLE DEVICE ONLY IN THE ABSENCE OF REVERSE CURRENT IN SAID SELECTIVELY BILATERALLY CONDUCTIVE MEANS, SAID BISTABLE DEVICE ADAPTED TO CHANGE THE STABLE OPERATING STATE IN RESPONSE TO CONDUCTION BY SAID COUPLING MEANS OUTPUT MEANS CONNECTED TO SAID BISTABLE DEVICE, AND RESET MEANS CONNECTED TO SAID BISTABLE DEVICE, AND RESET MEANS CONNECTED TO SAID BISTABLE DEVICE TO RETURN SAID BISTABLE DEVICE TO SAID ONE STABLE OPERATING STATE.
References Cited (Backward Citations)
US2986652A
Cited
US3106644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |