VERTICAL INTERPOLATION DEVICE OF HDTV DECODER

摘要

The present invention relates to a vertical interpolation apparatus of an HDTV decoder capable of performing vertical interpolation with a simple configuration using a plurality of adders in series.;In the prior art, a multiplier is used to implement a vertical interpolator, and the present invention has a disadvantage in that the total hardware is complicated and the cost is increased, and the present invention provides a FIFO for delaying input data and an input of the FIFO. A plurality of adders for selectively averaging the outputs to obtain a vertical interpolation value, and a vertical interpolation for implementing the vertical interpolation apparatus by a line multiplexer that multiplexes the output of the adder by line to have a positional relationship such as Y. Compared to the case of using a conventional multiplier, the hardware configuration is simple and the cost is reduced.