Patent US3226572A successfully refreshed from Google Patents.
US3226572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trigger circuits
Assignee: Fujitsu Ltd
•
Filing: 1963-02-20
•
Granted: 1965-12-28
•
Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Kuroda Akira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:49
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/084; H03K3/00; H03K3/02; H03K3/027; H03K3/037; H03K3/26; H03K3/28; H03K3/281; H03K3/286
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
139 words
A TRIGGER CIRCUIT FOR SETTING A FLIP-FLOP IN RESPONSE TO CLOCK PULSES AND A PLURALITY OF INPUTS AND FOR RESETTING THE FLIP-FLOP IN RESPONSE TO THE CLOCK PULSES, COMPRISING A LOGIC AND CIRCUIT INCLUDING A PLURALITY OF DIODES AND MEANS CONNECTING SAID DIODES TO FORM A SINGLE OUTPUT TERMINAL FOR SUPPLYING SET PULSES TO SAID FLIP-FLOP, EACH DIODE FORMING AN INPUT TERMINAL FOR THE RESPECTIVE INPUTS, ONE OF SAID INPUT TERMINALS SUPPLYING A CLOCK PULSE TO SAID AND CIRCUIT, A CAPACITOR, A RESISTOR, CIRCUIT MEANS CONNECTING SAID CAPACITOR AND SAID RESISTOR IN SERIES BETWEEN SAID ONE OF SAID INPUT TERMINALS AND SAID OUTPUT TERMINAL, AND OUTPUT MEANS FOR DERIVING A TRIGGER PULSE FROM A COMMON POINT IN THE CONNECTION BETWEEN SAID CAPACITOR AND SAID RESISTOR AND FOR APPLYING PULSES TO RESET SAID FLIPFLOP, SAID OUTPUT MEANS INCLUDING A DIODE.
References Cited (Backward Citations)
US3091737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |