| 摘要 |
In a time correcting apparatus, a signal including time codes is sampled to generate a bit sequence of input TCO data. A prognostic TCO data generating unit 33 generates a bit sequence of prognostic TCO data based on a current time calculated by a time calculating circuit 17. An error number calculating unit 34 compares bits of the input TCO data with bits of the prognostic TCO data to count the number of discrepancy, thereby calculating the number of errors, and shifts bits of the prognostic TCO data to generate new TCO data and compares bits of the new TCO data with bits of the input TCO data to calculate the number of errors. A judging unit 35 judges if the number of errors is valid. When the number of errors is valid, a time correcting unit 36 calculates a time difference of the calculated current time based on the number of shifting bits, as much as which number of shifting bits the prognostic TCO data has been shifted to calculate such valid number of errors.
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