US3284645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable circuit
Assignee: International Business Machines Corp
•
Filing: 1964-10-27
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Granted: 1966-11-08
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Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Edward B Eichelberger
- 👤 Melvin P Xylander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:10
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/027; H03K3/037
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A DIRECT CURRENT COUPLED BISTABLE DEVICE OF THE TYPE IN WHICH A PAIR OF ALTERNATIVELY ENERGIZED AMPLIFIERS EACH INCLUDE A LOGICAL INPUT CIRCUIT AND AN OUTPUT CIRCUIT CROSSCOUPLED TO THE INPUT CIRCUIT OF THE OTHER AMPLIFIER AND IN WHICH EACH LOGICAL INPUT CIRCUIT RESPONDS TO A PAIR OF BIVALUED COMPLEMENTARY INPUT SIGNALS TO CHANGE THE STATE OF THE DEVICE EACH TIME THAT THE INPUT SIGNALS CHANGE IN ONE SENSE ONLY FROM ONE SET OF VALUES TO THE OPPOSITE, THE COMBINATION THEREWITH OF A PAIR OF CAPACITORS EACH CONNECTED TO A RESPECTIVE LOGICAL INPUT CIRCUIT TO INTEGRATE AND THEREBY DELAY THE CHANGE IN VALUE OF ONE OF SAID INPUT SIGNALS IN SAID ONE SENSE, THEREBY ASSURING TURNING OFF OF THE ENERGIZED AMPLIFIER TO INITIATED A CHANGE IN THE STABLE STATE OF THE DEVICE.
Claim 2
Dependent Claim
133 words
IN A DIRECT CURRENT COUPLED BISTABLE DEVICE OF THE TYPE IN WHICH A PAIR OF ALTERNATIVELY ENERGIZED AMPLIFIERS EACH INCLUDE A LOGICAL INPUT CIRCUIT AND AN OUTPUT CIRCUIT CROSSCOUPLED TO THE INPUT CIRCUIT OF THE OTHER AMPLIFIER AND IN WHICH EACH LOGICAL INPUT CIRCUIT RESPONDS TO A PAIR OF BIVALUED COMPLEMENTARY INPUT SIGNALS TO CHANGE THE STATE OF THE DEVICE EACH TIME THAT THE INPUT SIGNALS CHANGE IN ONE SENSE ONLY FROM ONE SET OF VALUES TO THE OPPOSITE, THE COMBINATION THEREWITH OF A PAIR OF CAPACITORS EACH CONNECTED TO A RESPECTIVE LOGICAL INPUT CIRCUIT TO INTEGRATE AND THEREBY DELAY THE CHANGE IN VALUE OF ONE OF SAID INPUT SIGNALS IN SAID ONE SENSE, THEREBY ASSURING TURNING OFF OF THE ENERGIZED AMPLIFIER TO INITIATED A CHANGE IN THE STABLE STATE OF THE DEVICE.
References Cited (Backward Citations)
US3104327A
Cited
US3250921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |