Patent ID: 6249319
Filing Date: 2001-06-19
Classification: H04N

Abstract:
A method in a data processing system for locating a correct synchronization point in a data stream containing plurality of video data packets and a plurality of audio data packets, the method comprising the data processing system implemented steps of:monitoring a data stream for an audio synchronization factor in an audio data packet within the plurality of audio data packets in the data stream and for a video synchronization factor within a video data packet within the plurality of video data packets in the data stream;examining a first audio data packet from the plurality of audio data packets after a video data packet to determine whether the first audio data packet contains an audio synchronization factor in response to detecting a video synchronization factor in the video data packet;examining a data packet immediately after an audio data packet to determine whether the data packet is a video data packet containing a video synchronization factor in response to detecting an audio synchronization factor in the audio data packet;identifying the correct synchronization point as being in the video data packet in response to detecting an audio synchronization factor in the first audio data packet after the video data packet containing the video synchronization factor; andidentifying the correct synchronization point as being in the audio data packet in response to detecting the video synchronization factor in a video data packet immediately after the audio data packet.