| 摘要 |
PROBLEM TO BE SOLVED: To enable measuring skewness between data being minute which is not satisfied by measurement accuracy of a tester device and to measure skewness between data of the worst case in a plurality of operation cycle. SOLUTION: This device is provided with a timing deciding circuit 2 which compares and decides coincidence/uncoincidence of input data synchronized with two different timing and holds and outputs a test result based on the decided result.
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