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    • 44. 发明授权
    • Data processing device
    • 数据处理装置
    • US07929825B2
    • 2011-04-19
    • US10535988
    • 2003-11-27
    • Masanori ItohOsamu OkauchiYasuyuki KurosawaTadashi Nakamura
    • Masanori ItohOsamu OkauchiYasuyuki KurosawaTadashi Nakamura
    • H04N9/80H04N5/76H04M3/22G11B11/00
    • G11B20/10527G11B20/10G11B20/1217G11B27/036G11B27/329G11B2020/10537G11B2020/1062G11B2220/216G11B2220/2541G11B2220/2575
    • The data processor of the present invention can play back video and audio synchronously from an optical disk, on which video and audio data are stored in different areas. Each area consists of one or more unit areas. The data processor includes: a playback control section for giving instructions on how to read the video and audio data and how to play back the video and audio based on the read data; a head for reading the data from one of the unit areas after another in accordance with the instructions; and audio and video buffers for retaining the audio and video data read. The playback control section instructs that the audio data be read from a predetermined one of the unit areas to the audio buffer memory, and then instructs that the video data, which is to be played back over first and second periods of time, be read from a number n (where n is an integer equal to or greater than two) of unit areas to the video buffer. The first period of time is (n+2) times as long as the maximum amount of time to move the head, and the second period of time is taken to read the audio data from the next unit area.
    • 本发明的数据处理器可以从其上存储有不同区域的视频和音频数据的光盘同步地播放视频和音频。 每个区域由一个或多个单位区域组成。 数据处理器包括:播放控制部分,用于基于读取的数据给出关于如何读取视频和音频数据以及如何回放视频和音频的指令; 根据说明书从一个单位区域读取数据的头部; 以及用于保留读取的音频和视频数据的音频和视频缓冲器。 回放控制部指示音频数据从单位区域中的预定单位读取到音频缓冲存储器,然后指示将从第一和第二时段读取要再现的视频数据, 数字n(其中n是等于或大于2的整数)到视频缓冲器的单位区域。 第一时间段是移动头部的最大时间长度的(n + 2)倍,并且从第二时间段读取来自下一单位区域的音频数据。