Search International and National Patent Collections

1. (WO1999008199) DESK CALCULATOR CAPABLE OF EASY CHECKING AND TRUSTWORTHY CALCULATION

Pub. No.:    WO/1999/008199    International Application No.:    PCT/JP1998/002283
Publication Date: Fri Feb 19 00:59:59 CET 1999 International Filing Date: Wed May 27 01:59:59 CEST 1998
IPC: G06F 15/02
Applicants: ESTATE PLANNING KENKYUSYO CO., LTD.

SHIBASAKI, Hiroyuki

Inventors: SHIBASAKI, Hiroyuki

Title: DESK CALCULATOR CAPABLE OF EASY CHECKING AND TRUSTWORTHY CALCULATION
Abstract:
A highly operable desk calculator with which inputted data can be confirmed and corrected through the minimum number of keying operations once calculation is made and correct results can be easily obtained through automatic recalculation, and further which can resume the calculation after suspending the process for confirming and correcting the data inputted during sequential calculation process. The calculator is provided with a means for storing numerical values and operators inputted during the course of calculation in an input hysteresis storing memory in an ordinary calculator mode, a means for displaying the stored numerical values and operators for confirmation together with the numbers and the total number of inputted items in an input hysteresis display mode, a means for making the displayed data correctable through the substitution, insertion, deletion, etc., of numerical values and operators, a means for automatically calling the stored input hysteresis from the first element for recalculation, a means for inhibiting the reopening of such an input that is not able to maintain such consistency that operators and numerical values alternately appear, and a means for restarting the calculation by canceling the inhibition.