| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wave form data interpolation apparatus for performing interpolation with high interpolation accuracy with less calculation amount. <P>SOLUTION: When a decimal number address which is input from a decimal address calculation block 5-2 for indicating a position between consecutive two points in which a wave form sample value is sampled, is set to x, a value of x(1-x) is calculated as a sum of exclusive OR by approximating a value of (1-x) to the value in which all bit values expressing x are reversed in a product sum block 5-5. Using the calculated value, a wave form sampling value (wave height value) of a wave form position indicated with the decimal number address x is calculated and, using the calculation result, DCO output of time sharing processing is generated and output to an accumulation block 5-6. <P>COPYRIGHT: (C)2007,JPO&INPIT |
