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热词
    • 94. 发明公开
    • method for calculating the addresses in the navigation pack of a VOBU unit
    • einem Navigationspaket中的Verfahrenfürdas Berechnen der Addressen eines VOBU
    • EP2017843A2
    • 2009-01-21
    • EP08167710.6
    • 1999-07-01
    • Victor Company Of Japan, Limited
    • Sugahara, TakayukiSuzuki, Junzo
    • G11B27/00
    • H04N19/152G11B27/3027H04N19/115H04N19/124H04N19/159H04N19/172H04N19/46H04N19/61H04N19/70
    • A picture target amount-of-code calculating unit (14) calculates a target amount of codes for each picture type that corresponds to an encoding rate that has been determined by an audio/video encoding rate determining unit (13). An amount-of-code controlling unit (12) controls the quantizing scale of a quantizing unit so as to make the target amount of codes for each picture type match with a total amount of codes of a unit as a whole. A unit address calculating unit (15) calculates the addresses used when a search is made, as navigation data, on the basis of the target amount of codes for each picture type and the encoding rate. A unifying unit (17) makes a construction of the unit while, on the other hand, a navigation data producing unit (16) depicts navigation data at a foremost position of the unit.
    • 图像目标量代码计算单元(14)计算与由音频/视频编码率确定单元(13)确定的编码率相对应的每个图像类型的目标代码量。 代码量控制单元(12)控制量化单元的量化比例,以使得每个图像类型的目标代码量与整体的单位的总代码相匹配。 单元地址计算单元(15)基于针对每个图像类型的目标代码量和编码率来计算进行搜索时使用的地址作为导航数据。 另一方面,统一单元(17)构成该单元,另一方面,导航数据产生单元(16)描绘在该单元的最前面位置处的导航数据。