Patent ID: 8428426
Filing Date: 2013-04-23
Classification: H04N

Abstract:
1. A digital video recording/playback apparatus comprising: a memory unit configured to store video data and read the stored video data; a playback unit configured to play the video data read from the memory unit; a synchronization unit configured to send out a synchronization signal to the memory unit and the playback unit; a synchronization signal counter configured to count the synchronization signal sent from the synchronization unit and generate a frame counter value; and a controller configured to supply the frame counter value to the memory unit and the playback unit, output a reading process start instruction for the video data and a first process completion time limit represented by the frame counter value to the memory unit, and output a decoding process start instruction for the video data and a second process completion time limit represented by the frame counter value to the playback unit; wherein the memory unit calculates a start timing of a reading process based on the first process completion time limit and starts the reading process at the start timing of the reading process calculated; and the playback unit calculates a start timing of a decoding process based on the second process completion time limit and starts the decoding process at the start timing of the decoding process calculated.