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Abstract

A variable delay circuit comprises: a delay compensation unit, which has a plurality of referential delay units that include different numbers of first variable delay elements, the delay amount of which varies based on a control signal, the delay compensation unit generates each of a plurality of the control signals, which are provided to the first variable delay elements, according to a number of the first variable delay elements; and a delay unit which generates the desired delay amount by controlling a plurality of second variable delay elements, which have a same characteristic with the first variable delay elements, by the plurality of control signals.

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First Claim