| 摘要 |
PURPOSE:To simplify the scale of a circuit by providing three selectors, selecting each selector, and omitting a multiplier. CONSTITUTION:ALU 30-37 which respectively associate with bits b0-b7 showing a coefficient alpha supplied from a memory (MEM) 1 through a bus bar 2 and form a computer element (ALU) array 3 are provided. The first and the second selectors (SEL) 40-47 and 50-57 are provided at first and second input joints of every ALU 30-37 and these selectors select the real numbers X1-X7 of and Y1-Y7 of them at an accumulation time and at an estimation time, they select the associated bits among accumulation values A from a bus bar 6 and the bits b0-b7 which show the coefficience alpha given from the bus bar 2 and input to each ALU 30-37. Thus the accumulation and the multiplication are executed in the same circuit, and the multiplier is not needed to provide.
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