System and method for disk software publisher to control disk distribution
    68.
    发明公开
    System and method for disk software publisher to control disk distribution 失效
    磁盘软件发布者控制磁盘分发的系统和方法

    公开(公告)号:EP0977444A3

    公开(公告)日:2000-03-22

    申请号:EP99119891.2

    申请日:1994-10-13

    IPC分类号: H04N9/82

    摘要: A system for allowing software publishers to control which video standard(s) can be recovered from an optical disk (23) containing video source material. The disk may be digitally encoded so that any of NTSC, PAL and other video signal standards can be generated upon proper decoding. But the disk also includes a code which can lock out one or more standards. Players (21) for such disks may be capable of generating video signals according to all popular standards, in which case the user selects a desired standard. However, the player will generate a video signal of the selected standard only if there is an appropriate authorization code on the disk. The system allows manufacture of "universal" players without necessarily impacting the contractual and marketing plans of motion picture companies, for example, which release films in different territories at different times. The control technique can be extended to lock out specific territories. Each player has a built-in territory code. The player will play a disk only if the disk contains an authorization code for the player's specific territory.

    摘要翻译: 一种允许软件发布者控制哪个视频标准可以从包含视频源素材的光盘(23)中恢复的系统。 该盘可以被数字编码,从而可以在正确解码时生成NTSC,PAL和其他视频信号标准中的任何一种。 但该磁盘还包含可锁定一个或多个标准的代码。 这种盘的播放器(21)可能能够根据所有流行的标准产生视频信号,在这种情况下,用户选择期望的标准。 但是,只有在磁盘上有适当的授权码时,播放器才会生成所选标准的视频信号。 该系统允许制造“通用”玩家,而不必影响电影公司的合同和营销计划,例如,在不同时间在不同地区发行电影。 控制技术可以扩展到锁定特定区域。 每个玩家都有一个内置的地区代码。 只有当磁盘包含玩家特定地区的授权码时,播放器才会播放磁盘。