US3225181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital computing system for square roots
Assignee: Giannini Controls Corp
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Filing: 1962-09-28
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Granted: 1965-12-21
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Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jerry H Styner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:16
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/544; G06F7/552; G06F7/5525; G06F7/60; G06F7/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
160 words
A SYSTEM RESPONSIVE TO A SERIES OF INPUT SIGNALS WHICH OCCUR AT AN AVERAGE RATE THAT IS INVERSELY PROPORTIONAL TO THE SQUARE OF AN INDEPENDENT VARIABLE, SAID SYSTEM BEING ADAPTED TO COMPUT A NUMBER POROPORTIONAL TO SAID INDEPENDENT VARIABLE AND COMPRSING IN COMBINATION FIRST AND SECOND COUNTING REGISTERS, MEANS FOR INCREASING THE COUNT IN THE FIRST REGISTER AT A PREDETERMINED UNIFORM RATE THAT IS LARGE COMPARED TO THE MAXIMUM RATE OF SAID INPUT SIGNALS, MEANS ACTING TO DEVELOP A CONTROL SIGNAL EACH TIME THAT SAID COUNT INCREASES BY AN AMOUNT EQUAL TO THE COUNT STANDING IN THE SECOND REGISTER, MEANS FOR INCREASING THE COUNT IN THE SECOND REGISTER BY A UNIFORM AMOUNT IN RESPONSE TO EACH SAID CONTROL SIGNAL, MEANS FOR RESETTING THE SECOND REGISTER TO INITIAL CONDITION IN RESPONSE TO EACH INPUT SIGNAL, AND OUTPUT MEANS FOR PRODUCING A PRESENTATION OF SAID NUMBER IN RESPONSE TO THE NUMBER REPRESENTED BY THE SECOND REGISTER IMMEDIATELY PRIOR TO SAID RESETTING THEREOF.
References Cited (Backward Citations)
US2997234A
Cited
US3126475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |