CLOCK CORRECTION METHOD, CLOCK CORRECTION DEVICE, AND CLOCK CORRECTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To suppress deterioration of frequency stability of a clock, and to correct a clock time, while preventing sudden change of the clock time.

SOLUTION: In this time correction method, a correction amount for correcting the clock time at each unit time within a prescribed period is determined so that the correction amount is changed from 0 toΔ, and that a difference of the correction amount between front and rear points of time becomes smaller in proportion to the nearness of the point of time to a start point of tome or a finish point of time within the prescribed period, to thereby avoid sudden change of the frequency of the clock. The clock is controlled following the correction amount at each point of time determined in this way.

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