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    • 16. 发明授权
    • Content use device and recording medium
    • 内容使用装置和记录介质
    • US08428435B2
    • 2013-04-23
    • US12796077
    • 2010-06-08
    • Masaya YamamotoToshihisa NakanoRyuichi OkamotoMotoji Ohmori
    • Masaya YamamotoToshihisa NakanoRyuichi OkamotoMotoji Ohmori
    • H04N9/80
    • G11B20/00086G11B27/105
    • To provide a content playback device that can use content appropriately by avoiding output of content not permitted to be used according to contract information. A playback control unit 102 extracts a content name from playback control information in a playback path information table 210, and inquires of a rights management unit 108 whether content identified by the extracted content name is playable or not. If the content is judged as being unplayable, the playback control unit 102 extracts an alternative playback number from the playback control information, and extracts a content name from playback control information whose playback number matches the alternative playback number. The playback control unit 102 then instructs a decryption unit 103 and a playback unit 107 to decrypt and play back encrypted content identified by the extracted content name.
    • 提供可以通过避免根据合同信息输出不允许使用的内容来适当地使用内容的内容回放设备。 回放控制部102从回放路径信息表210中的回放控制信息中提取内容名,并向权利管理部108询问由所提取的内容名称识别的内容是否可以播放。 如果内容被判断为不可播放,则播放控制单元102从播放控制信息中提取备选重放号码,并且从播放数量与替代重放号码匹配的播放控制信息中提取内容名称。 再现控制单元102然后指示解密单元103和重放单元107解密和重放由所提取的内容名称标识的加密内容。
    • 19. 发明授权
    • Filter device with control for filter winding and projection type display apparatus
    • 具有过滤器绕组和投影型显示装置控制的过滤装置
    • US08366276B2
    • 2013-02-05
    • US12821332
    • 2010-06-23
    • Masaya Yamamoto
    • Masaya Yamamoto
    • G03B21/18
    • B01D46/18G03B21/16
    • A filter device includes: a filter unit including a housing in which a roll filter stretched between a feeding shaft and a take-up shaft is housed, the housing including, between the two shafts, an opening for exposing a part of the filter; a filter installation detection sensor for detecting installation of the filter unit; a filter winding driving unit for taking up or rewinding the installed filter; and a control unit for controlling operations of the filter winding driving unit based on a detection signal from the filter installation detection sensor. When the control unit determines based on the detection signal from the filter installation detection sensor that the filter is installed, the control unit causes the filter winding driving unit to rewind the filter by a predetermined amount and determines whether the filter is new or not based on the rewinding. By detecting filter replacement, information on the replaced filter can be reset.
    • 过滤装置包括:过滤器单元,包括壳体,其中容纳有在进给轴和卷取轴之间延伸的辊过滤器,壳体在两个轴之间包括用于暴露过滤器的一部分的开口; 用于检测过滤器单元的安装的过滤器安装检测传感器; 过滤器卷绕驱动单元,用于卷绕或倒带安装的过滤器; 以及控制单元,用于基于来自过滤器安装检测传感器的检测信号来控制过滤器卷绕驱动单元的操作。 当控制单元基于来自过滤器安装检测传感器的检测信号确定安装过滤器时,控制单元使过滤器卷绕驱动单元将过滤器反绕预定量,并基于以下步骤确定过滤器是否新 倒卷。 通过检测过滤器更换,更换过滤器的信息可以重置。