Digital convergence apparatus

Details Digital convergence apparatus Digital convergence apparatus

H - Electricity

04

N

H04N 3/16 (2006.01) H04N 9/093 (2006.01) H04N 9/28 (2006.01)

Patent

CA 2152457

A digital convergence apparatus according to one aspect of the present invention includes a first memory for storing data for the convergence correction corresponding to plural correction executing points aligned in the horizontal or vertical direction of a screen, a first static convergence data memory for storing a first static convergence correction data for correcting the entire screen in the same direction, a second static convergence data memory for storing a second static convergence correction data different from the first static convergence correction data only by an amount corresponding to the distance between the scanning lines, selecting means for selecting the output of the first or the second static convergence data memory according to the odd field period or the even field period, adding means for adding the output of the selecting means to the data stored in the first memory, and vertical interpolating means for interpolating the output of the adding means in the vertical direction and supplying it to a convergence correction coil.

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