Patent ID: 6281934
Filing Date: 2001-08-28
Classification: H03M,H04N

Abstract:
A data slicing device comprising:converting means for converting a video signal applied thereto into an equivalent digital signal;averaging means for averaging the amplitude of a dc component included in said digital signal obtained by said converting means so as to obtain a current averaging result of the amplitude of the dc component; andcomparing means for comparing a current value of said digital signal obtained by said converting means with the current averaging result obtained by said averaging means so as to extract data from said digital signal,wherein said averaging means obtains a sum of a preceding averaging result multiplied by a first natural number (M) and the current value of the digital signal multiplied by a second natural number (N) and then divides the sum obtained in such a way by the sum of the first and second natural numbers (M+N) so as to obtain the current averaging result of the amplitude of the dc component.