US3104332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-synchronous scanning circuit
Assignee: International Business Machines Corp
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Filing: 1961-12-04
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Granted: 1963-09-17
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Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Hannon S Yourke
- 👤 Sammy A Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:33
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/047; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/58
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
164 words
A CIRCUIT COMPRISING A PLURALITY OF CASCADED STAGES, EACH SAID STAGE COMPRISING; A SEMICONDUCTOR SWITCHING ELEMENT OPERABLE IN A NON-CONDUCTIVE OFF STATE AND A SATURATION CONDUCTIVE ON STATE, A TUNNEL DIODE BIASED FOR BISTABLE OPERATION CONNECTED TO SAID SWITCHING ELEMENT SO THAT THE DIODE IS SWITCHED FROM A DATUM TO A FURTHER STABLE STATE WHEN SAID SWITCHING ELEMENT IS TURNED ON, ACCESS MEANS CONNECTED TO THE TUNNEL DIODE FOR INHIBITING THE DIODE FROM SWITCHING TO SAID FURTHER STABLE STATE WHEN ENERGIZED, INPUT MEANS CONNECTED TO SAID SWITCHING ELEMENT FOR TRANSMITTING INFORMATION PULSES THROUGH SAID SWITCHING ELEMENT AND SAID DIODE WHEN SAID ACCESS MEANS INHIBITS SAID DIODE, MEANS CONNECTING THE TUNNEL DIODE OF EACH STAGE TO THE SWITCHING ELEMENT OF THE NEXT SUCCEEDING STAGE SO THAT THE SWITCHING ELEMENT OF EACH STAGE IS TURNED ON WHEN THE TUNNEL DIODE OF THE NEXT PRECEDING STAGE IS SWITCHED TO SAID FURTHER STABLE STATE, AND MEANS FOR RESETTING THE DIODE OF EACH STAGE TO THE DATUM STABLE STATE.
References Cited (Backward Citations)
US2863049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |