Programmable electronic calculator
Abstract
Abstract A PROGRAMMABLE ELECTRONIC CALCULATOR HAVING A NORMAL, LEARN, AND RECALL MODE OF OPERATION IS DISCLOSED WHICH HAS A MEANS FOR STORING BOTH NUMERIC DATA AND INSTRUCTION CHARACTERS IN INTERLACED FASHION, AND ARITHMETIC AND CONTROL MEANS FOR PERFORMING OPERATIONS ON THE NUMERIC DATA IN ACCORDANCE WITH THE INSTRUCTION CHARACTERS WHEN THE CALCULATOR IS IN RECALL MODE. THE CALCULATOR INCLUDES CIRCUITRY FOR RING-SHIFTING THE SET OF INSTRUCTION CHARACTERS UNTIL ALL LEARNED OPERATIONS HAVE BEEN PERFORMED. THE CALCULATOR ALSO HAS A MANUALLY ACTUATABLY PROGRAM RESET MEANS WHICH ALIGNS THE SET OF INSTRUCTION CHARACTERS TO PLACE THE FIRST-ENTERED CHARACTER IN RECALL POSITION IN THE STORAGE MANS, AND A MANUALLY ACTUATABLE RESUME MEANS WHICH CAUSES THE ARITHMETIC AND CONTROL MEANS TO RESUME PERFORMING OPERATIONS ON THE NUMERIC DATA AFTER A STOP CHARACTER HAS HALTED THE RING-SHIFTING OPERATION.
Inventors
- 👤 Robert A Ragen
Bibliographic Details
Claims Analysis
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |