| http://www.w3.org/ns/prov#value | - The apparatus for detecting a phase error of claim 13, wherein the calculate unit obtains the timing error based on Zk=Bak???1D1 k+D2 k???D1 k???1???D2 k???1), and zk is the timing error, B is a gain, D1 k is the present digital signal that a (k)th zero crossing is generated therein, D2 k is the previous digital signal that a (k)th zero crossing is generated therein, a k???1 is a quantized value o
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