Patent ID: 6128339
Filing Date: 2000-10-03
Classification: H04N

Abstract:
An apparatus for masking video data errors by decoding compressed video data, wherein a data frame includes a plurality of macro blocks formed of a plurality of blocks, each having a direct current (DC) value, said apparatus comprising:first frame storage means for storing video data of a previous frame;second frame storage means for storing video data of a present frame;error detecting means for calculating a direct current value difference between respective blocks in said decoded video data and for detecting a specific macro block error when the difference value is greater than a predetermined reference threshold; andmeans for copying, when errors are detected in said error detecting means, data of the same position stored in said first frame storage means into the position in which the error of said second frame storage means is generated, and means for writing the data in said second frame storage means when errors are not detected.