Unauthorized contents detection system
    1.
    发明公开
    Unauthorized contents detection system 有权
    未经授权的内容检测系统

    公开(公告)号:EP1840782A3

    公开(公告)日:2008-02-13

    申请号:EP07112869.8

    申请日:2005-03-24

    IPC分类号: G06F21/00

    摘要: Processing load on an executing device for conducting playback is high during the playback of contents since the executing device performs verification of the contents validity in parallel with the contents playback, and therefore the executing device has to be equipped with a highly efficient processor. The present invention reduces the processing load involved in the verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on the DVD. In addition, the present invention is capable of improving the accuracy of detecting unauthorized contents to some extent by randomly selecting a predetermined number of encrypted units every time the verification is performed.

    摘要翻译: 由于执行装置与内容重放并行地执行内容有效性验证,所以在内容重放期间用于执行重放的执行装置上的处理负载较高,因此执行装置必须配备高效处理器。 为了验证,本发明通过使用从构成记录在DVD上的加密内容的多个加密单元中随机选择的预定数量的加密单元来减少验证中涉及的处理负荷。 另外,本发明能够在每次执行验证时通过随机选择预定数量的加密单元来在一定程度上提高检测未授权内容的准确性。

    Distribution system, distribution apparatus and reception apparatus for distributing digital contents having usage expiry
    3.
    发明公开
    Distribution system, distribution apparatus and reception apparatus for distributing digital contents having usage expiry 审中-公开
    分配系统,分配设备,和用于分配数字内容到最终用户接收设备

    公开(公告)号:EP1361495A2

    公开(公告)日:2003-11-12

    申请号:EP03010408.7

    申请日:2003-05-08

    IPC分类号: G06F1/00

    CPC分类号: G06F21/10 G06F2221/2137

    摘要: A reception apparatus includes a first timer and sends to a distribution apparatus a first date-time clocked by the first timer. The distributing apparatus includes a second timer, and generates expiry information based on a difference obtained by subtracting, from the first date-time, a second date-time that is clocked by the second timer. The expiry information is used to adjust a usage expiry date-time of a content. The reception apparatus judges whether playback of the content is permitted based on the first timer and the expiry information.
    With this arrangement, unauthorized use of the content beyond the expiry date-time is prevented.

    摘要翻译: 一种接收装置,包括:第一计时器,并发送至分配装置由第一计时器计时的第一日期时间。 所述分配装置包括:第二定时器,并通过减去得到的基因率基于差期满信息,从所述第一日期 - 时间,第二日期 - 时间也由第二计时器计时。 期满信息被用来调整一个内容的使用期满日期时间。 接收装置判断是否播放内容是基于所述第一定时器和期满信息允许的。 采用这种结构,超越了到期日时间的内容的未经授权的使用被阻止。

    Unauthorized contents detection system
    6.
    发明公开
    Unauthorized contents detection system 有权
    系统zur Erkennung nicht autorisierter Inhalte

    公开(公告)号:EP1840782A2

    公开(公告)日:2007-10-03

    申请号:EP07112869.8

    申请日:2005-03-24

    IPC分类号: G06F21/00

    摘要: Processing load on an executing device for conducting playback is high during the playback of contents since the executing device performs verification of the contents validity in parallel with the contents playback, and therefore the executing device has to be equipped with a highly efficient processor. The present invention reduces the processing load involved in the verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on the DVD. In addition, the present invention is capable of improving the accuracy of detecting unauthorized contents to some extent by randomly selecting a predetermined number of encrypted units every time the verification is performed.

    摘要翻译: 由于执行装置与内容再现并行地执行内容有效性的验证,所以在内容的再现期间,用于进行再现的执行装置上的处理负载很高,因此执行装置必须配备高效率的处理器。 本发明通过仅使用构成在DVD上记录的加密内容的多个加密单位随机选择的预定数量的加密单位来验证验证。 另外,本发明能够在每次执行验证时随机地选择预定数量的加密单元,从而在一定程度上提高了对未授权内容的检测精度。

    Recording apparatus for information recording medium and recording method
    7.
    发明公开
    Recording apparatus for information recording medium and recording method 审中-公开
    信息记录介质和记录方法,记录装置

    公开(公告)号:EP1202272A3

    公开(公告)日:2007-06-20

    申请号:EP01125308.5

    申请日:2001-10-25

    摘要: There is provided a recording apparatus for recording first audio information (song 61) including a first audio content (65) in an information recording medium (55) which can store a plurality of audio contents (65,66) having a plurality of different audio properties, the information recording medium containing audio information (song 62) including a second audio content (66), wherein the recording apparatus includes: a conversion section for converting an audio property of soundless information (67) of the first audio information into the same audio property as the audio property of the second audio information; and a recording section for recording the soundless information (68) in the information recording medium as a part of the second audio information (song 64) so as to be adjacent to a tail of the second audio content, and recording thr first audio content in the information recording medium.

    Recording apparatus for information recording medium and recording method
    9.
    发明公开
    Recording apparatus for information recording medium and recording method 审中-公开
    AufzeichnungsgerätfürInformationsaufzeichnungsmedium und Aufzeichnungsverfahren

    公开(公告)号:EP1202272A2

    公开(公告)日:2002-05-02

    申请号:EP01125308.5

    申请日:2001-10-25

    摘要: There is provided a recording apparatus for recording first audio information (song 61) including a first audio content (65) in an information recording medium (55) which can store a plurality of audio contents (65,66) having a plurality of different audio properties, the information recording medium containing audio information (song 62) including a second audio content (66), wherein the recording apparatus includes: a conversion section for converting an audio property of soundless information (67) of the first audio information into the same audio property as the audio property of the second audio information; and a recording section for recording the soundless information (68) in the information recording medium as a part of the second audio information (song 64) so as to be adjacent to a tail of the second audio content, and recording thr first audio content in the information recording medium.

    摘要翻译: 提供了一种用于在信息记录介质(55)中记录包括第一音频内容(65)的第一音频信息(歌曲61)的记录装置,其可以存储具有多个不同音频的多个音频内容(65,66) 属性,包含包括第二音频内容(66)的音频信息(歌曲62)的信息记录介质,其中记录装置包括:转换部分,用于将第一音频信息的无声信息(67)的音频属性转换成相同的音频信息 音频属性作为第二音频信息的音频属性; 以及记录部分,用于将信息记录介质中的无声信息作为第二音频信息的一部分(歌曲64)记录,以便与第二音频内容的尾部相邻,并且将第一音频内容记录在 信息记录介质。