| 摘要 |
PROBLEM TO BE SOLVED: To avoid an increase in a circuit scale due to an increase in a new storage element or the like even when a plurality of digital signals are required to be added to each other, in a multiplication device for outputting digital data obtained by multiplying an arbitrary coefficient at a sample period. SOLUTION: The multiplication device including a multiplier for outputting digital data obtained by multiplying the arbitrary coefficient at a sample period is provided with an adder 304 for adding the digital data to a multiplication of a previous sample and supplying the resultant data to the multiplier and a switch 302 for feeding back the output of the multiplier to the adder 304. COPYRIGHT: (C)2007,JPO&INPIT
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