Importance

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Abstract

The signal generation apparatus includes a phase difference calculation processing unit that calculates an initial phase difference between a division clock or an external clock selected by a clock selection unit and an initial value of the phase of the toggle pattern based on a relationship between the voltage value acquired by the phase acquisition processing unit and a change amount from the initial value of the phase of the toggle pattern, and a phase shift processing unit that moves the phase of the toggle pattern from the initial value by the initial phase difference such that a phase difference between the division clock or the external clock selected by the clock selection unit and the toggle pattern is within a predetermined range.

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First Claim