Patent ID: 7039070
Filing Date: 2006-05-02
Classification: H04N

Abstract:
1. An apparatus for decoding moving-image bit streams contained in moving-image packets and reproducing image frames, the apparatus comprising: a timer which generates a system time; a decoding unit configured to receive the moving-image packets, extract from each moving-image packet a moving-image bit stream corresponding to an image frame, decode the moving-image bit stream into the image frame, and separate time information of the image frame from the moving-image bit stream; a time stamp extracting unit configured to receive header information of the moving-image packet and extract a time stamp, to be used for reproduction of the image frame, from the header information; an error correcting unit configured to determine whether the time stamp extracted by the time stamp extracting unit is correct based upon the time information extracted by the decoding unit and a latest time stamp determined to be correct, and to correct the time stamp based upon the latest time stamp and the time information if the stamp is determined to be incorrect; and an output unit configured to reproduce the image frame by comparing the system time stamp extracted by the time stamp extracting unit and the time stamp corrected by the error correcting unit.