公开(公告)号：US20010005901A1

公开(公告)日：2001-06-28

申请号：US08851304

申请日：1997-05-05

Applicant: U.S. PHILIPS CORPORATION

Inventor： FRANCISCUS L. A. J. KAMPERMAN ,  FRANK BOSVELD

IPC: H04N005/445 ,  G06F003/00

CPC classification number: H04N7/1675 ,  H04N7/163 ,  H04N21/2347 ,  H04N21/235 ,  H04N21/25875 ,  H04N21/26606 ,  H04N21/4181 ,  H04N21/4348 ,  H04N21/435 ,  H04N21/4405 ,  H04N21/4623 ,  H04N21/6581 ,  H04N21/8133 ,  H04N21/835 ,  H04N21/858

Abstract: In an information delivery system, a security device (SD) manages an access to information (INF). The security device (SD) is capable of providing a pointer (PO) which indicates a location (LO) from which additional data (ADA) may be obtained. The additional data (ADA) may be a description of the information (INF) which is offered. For example, in a pay TV system, the information (INF) may be a particular movie of which the description is nullJames Bond, Dr. No, action category, 12 year and older, broadcast April 19, at 20H30.null In that case, the pointer (PO) may be used to inform a subscriber that his security device (SD) allows him to watch this particular movie. However, the additional data (ADA) contained in the location (LO) indicated by the pointer (PO), may also be software for various purposes such as, for example, playing games or configuring a receiver (REC) which co-operates with the security device (SD).

Abstract translation: 在信息传递系统中，安全设备（SD）管理对信息（INF）的访问。 安全装置（SD）能够提供指示可以获得附加数据（ADA）的位置（LO）的指针（PO）。 附加数据（ADA）可以是提供的信息（INF）的描述。 例如，在收费电视系统中，信息（INF）可以是描述为“James Bond，Dr. No，行动类别，12岁及以上，20H30广播的4月19日广播”的特定电影。 在这种情况下，指针（PO）可以用于通知用户他的安全设备（SD）允许他观看这个特定的电影。 然而，包含在由指针（PO）指示的位置（LO）中的附加数据（ADA）也可以是用于各种目的的软件，例如玩游戏或配置与 安全设备（SD）。