| http://www.w3.org/ns/prov#value | - In this instance, the scanning system identifying circuit 224 comprises: a frequency demultiplier for frequency demultiplying the horizontal sync signal by 262.5???m; a frequency demultiplier for frequency demultiplying the vertical sync signal by m, where m is a value equal to the above-said value m; and a compare-decision unit which compares the phases of the output signals from the both frequen
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