US3176269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring counter checking circuit
Assignee: International Business Machines Corp
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Filing: 1962-05-28
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Granted: 1965-03-30
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Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Croad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:28
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/0703; G06F11/0751; G01; G01R; G01R31/00; G01R31/28; G01R31/317; G01R31/3181; G01R31/3185; G01R31/318522; G01R31/318527; H; H03; H03K; H03K21/00; H03K21/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A CHECKING CIRCUIT FOR A SIGNAL GENERATOR INCLUDING A PLURALITY OF CASCADED BISTABLE DEVICES WHICH ARE CAUSED TO SEQUENCTIALLY TURN ON UNDER CONTROL OF AN ADVANCE PULSE TO PRODUCE A TRNSISTION PULSE UNDER NORMAL CONDITIONS ON THE OUTPUT OF AN OR GATE CONNECTD THERETO COMPRISING: TEST ADVANCE PULSE MEANS, A CHECKING TRIGGER CONNECTED TO BOTH SAID OR GATE AND SAID TEST ADVANCE PULSE MEANS, FIRST INVERTER MEANS CONNECTED TO SAID OR GATE, SECOND INVERTER MEANS CONNECTED TO SAID TEST ADVANCE MEANS, FIRST AND MEANS CONNECTED TO THE OFF OUTPUT TERVERTER MEANS, SECOND AND MEANS CONNECTED TO THE ON OUTPUT TERSECOND AND MEANS CONNECTED TO THE ON OUTPUT TERMINAL OF SAID CHECKING TRIGGER, TO SAID OR GATE AND TO SAID SECOND INVERTER MEANS, AND THIRD AND MEANS CONNECTED TO THE ON OUTPUT TERMINAL OF SAID CHECKING TRIGGER, TO SAID FIRST INVERTER MEANS AND TO SAID SECOND INVERTER MEANS .
Claim 2
Dependent Claim
148 words
A CHECKING CIRCUIT FOR A SIGNAL GENERATOR INCLUDING A PLURALITY OF CASCADED BISTABLE DEVICES WHICH ARE CAUSED TO SEQUENCTIALLY TURN ON UNDER CONTROL OF AN ADVANCE PULSE TO PRODUCE A TRNSISTION PULSE UNDER NORMAL CONDITIONS ON THE OUTPUT OF AN OR GATE CONNECTD THERETO COMPRISING: TEST ADVANCE PULSE MEANS, A CHECKING TRIGGER CONNECTED TO BOTH SAID OR GATE AND SAID TEST ADVANCE PULSE MEANS, FIRST INVERTER MEANS CONNECTED TO SAID OR GATE, SECOND INVERTER MEANS CONNECTED TO SAID TEST ADVANCE MEANS, FIRST AND MEANS CONNECTED TO THE OFF OUTPUT TERVERTER MEANS, SECOND AND MEANS CONNECTED TO THE ON OUTPUT TERSECOND AND MEANS CONNECTED TO THE ON OUTPUT TERMINAL OF SAID CHECKING TRIGGER, TO SAID OR GATE AND TO SAID SECOND INVERTER MEANS, AND THIRD AND MEANS CONNECTED TO THE ON OUTPUT TERMINAL OF SAID CHECKING TRIGGER, TO SAID FIRST INVERTER MEANS AND TO SAID SECOND INVERTER MEANS .
References Cited (Backward Citations)
US3017620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |