US3274444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal responsive apparatus
Assignee: Unisys Corp
•
Filing: 1963-04-17
•
Granted: 1966-09-20
•
Expires: 1983-04-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas K Boudreau
- 👤 Albert Z Kaszynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:01
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/26; G06F1/28; H; H02; H02H; H02H3/00; H02H3/20; H02H3/202; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/2893
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN A DATA PROCESSING SYSTEM HAVING A PLURALITY OF CIRCUIT MEANS EACH CHARACTERIZED BY STATIC OPERATION CAPABILITY ACCORDING TO A QUIESCENT OPERATING POINT WHICH IS DETERMINED IN PART BY THE ENERGY LEVEL OF D.C. ENERGY SUPPLIES FOR THE CIRCUIT MEANS, SAID QUIESCENT OPERATING POINT BEING IN A RELIABLE OPERATION RANGE EXTENDING BETWEEN PREDESIGNED UPPER AND LOWER VOLTAGE LIMITS, SAID CIRCUIT MEANS FURTHER CHARACTERIZED BY DYNAMIC OPERATION IN RESPONSE TO SIGNAL CHANGES APPLIED THERETO, A POWER FAILURE SENSING CIRCUIT COMPRISING: CIRCUIT MEANS FOR CONSTANTLY MONITORING THE LEVELS OF THE D.C. ENERGY SUPPLIES, SAID CIRCUIT MEANS INCLUDING VOLTAGGE THRESHOLD SENSING MEANS HAVING REFERENCE VOLTAGE ISOLATION MEANS, SAID THRESHOLDS SENSING MEANS DEVELOPING A SIGNAL CHANGE WHEN ANY OF THE RESPECTIVE D.C. ENERGY SUPPLIES REACHES PREDETERMINED LEVELS APPROACHING SAID LIMITS; CONTROL CIRCUIT MEANS FOR ACTIVATING PREDETERMINED OPERATION SEQUENCES; AND MEANS FOR APPLYING SAID DEVELOPED SIGNAL CHANGE TO SAID CONTROL CIRCUIT MEANS TO EFFECT PRESELECTED DYNAMIC OPERATIONS THEREOF IN A PERIOD OF TIME LESS THAN THAT DURING WHICH THE D.C. ENERGY LEVEL REACHES ONE OF SAID LIMITS FROM SAID PREDETERMINED LEVEL.
Claim 2
Dependent Claim
176 words
IN A DATA PROCESSING SYSTEM HAVING A PLURALITY OF CIRCUIT MEANS EACH CHARACTERIZED BY STATIC OPERATION CAPABILITY ACCORDING TO A QUIESCENT OPERATING POINT WHICH IS DETERMINED IN PART BY THE ENERGY LEVEL OF D.C. ENERGY SUPPLIES FOR THE CIRCUIT MEANS, SAID QUIESCENT OPERATING POINT BEING IN A RELIABLE OPERATION RANGE EXTENDING BETWEEN PREDESIGNED UPPER AND LOWER VOLTAGE LIMITS, SAID CIRCUIT MEANS FURTHER CHARACTERIZED BY DYNAMIC OPERATION IN RESPONSE TO SIGNAL CHANGES APPLIED THERETO, A POWER FAILURE SENSING CIRCUIT COMPRISING: CIRCUIT MEANS FOR CONSTANTLY MONITORING THE LEVELS OF THE D.C. ENERGY SUPPLIES, SAID CIRCUIT MEANS INCLUDING VOLTAGGE THRESHOLD SENSING MEANS HAVING REFERENCE VOLTAGE ISOLATION MEANS, SAID THRESHOLDS SENSING MEANS DEVELOPING A SIGNAL CHANGE WHEN ANY OF THE RESPECTIVE D.C. ENERGY SUPPLIES REACHES PREDETERMINED LEVELS APPROACHING SAID LIMITS; CONTROL CIRCUIT MEANS FOR ACTIVATING PREDETERMINED OPERATION SEQUENCES; AND MEANS FOR APPLYING SAID DEVELOPED SIGNAL CHANGE TO SAID CONTROL CIRCUIT MEANS TO EFFECT PRESELECTED DYNAMIC OPERATIONS THEREOF IN A PERIOD OF TIME LESS THAN THAT DURING WHICH THE D.C. ENERGY LEVEL REACHES ONE OF SAID LIMITS FROM SAID PREDETERMINED LEVEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |