Digital convergence apparatus

专利名称：Digital convergence apparatus

发明人：Tsutomu Sakamoto,Masanori Fujiwara,Yoshiji

Tsuzuki,Hisayuki Mihara

申请号：US08/493749申请日：19950622公开号：US05592240A公开日：19970107

摘要：A digital convergence apparatus using two different kinds of data to correct theconvergence of odd and even scanning lines, respectively. A first memory stores data forthe convergence correction corresponding to plural correction executing points alignedin the horizontal or vertical direction of a screen. A first static convergence data memorystores a first static convergence correction data for correcting the entire screen in thesame direction, a second static convergence data memory stores a second staticconvergence correction data different from the first static convergence correction dataonly by an amount corresponding to the distance between the scanning lines. Selectingmeans select the output of the first or the second static convergence data memoryaccording to the odd field period or the even field period. Adding means add the outputof the selecting means to the data stored in the first memory. Vertical interpolatingmeans interpolate the output of the adding means in the vertical direction, and a

convergence correction coil corrects the convergence based on the output of the addingmeans.

申请人：KABUSHIKI KAISHA ROSHIBA

代理机构：Cushman, Darby & CushmanIP Group of PillsburyMadison & Sutro LLP

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