Adding apparatus having a high accuracy

Details Adding apparatus having a high accuracy Adding apparatus having a high accuracy

1988-08-26

1990-06-05

Malzahn, David H.

Boots, shoes, and leggings

364733, G06F 750

Patent

active

049319795

ABSTRACT:
An apparatus for adding a first input value and a second input value smaller than the first input value comprises a memory device for memorizing an under flow component; a first adder for adding an output value from the memory device and the first input value; a second adder for adding an output value of the first adder and the second input value; a first subtracter for subtracting the second input value from an output value of the second adder; and a comparator for comparing the output value of the first adder and an output value of the first subtracter. It is judged by an output value of the comparator whether or not the output value of the first adder is memorized in the memory device.

REFERENCES:
patent: 4750146 (1988-06-01), Dalqvist et al.
patent: 4758972 (1988-07-01), Frazier
patent: 4796217 (1989-01-01), Takahashi et al.

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