| 摘要 |
<p>PROBLEM TO BE SOLVED: To decrease the number of multiplying means and to reduce to a half the circuit scale of a multi-input adding circuit which adds the output of the multiplying means by calculating the difference between the outputs of a 1st storage means stored with input data and a 2nd storage means stored with intermediate data. SOLUTION: The registers 1001 and 1002 of the 1st storage means 2001 and the registers 1003 to 1005 of the 2nd storage means 2002 are connected in series. The inputted data is stored in the registers 1001 and 1002 and 1003 to 1005. Then subtracting means 1201 to 1203 subtract the output data of the 2nd storage means 2002 from the output of the 1st storage means 2001 or the input data. The outputs of the subtracting means 1201 to 1203 are inputted to the multiplying means 1501 to 1503 and are multiplied by coefficients 1401 to 1403 respectively. The outputs of the multiplying means 1501 to 1503 are inputted to the multi- input adding means 1901 and added together, and the result is outputted.</p> |
