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    • 1. 发明授权
    • Software conditional access system for a media delivery network
    • 用于媒体传送网络的软件条件访问系统
    • US08352372B1
    • 2013-01-08
    • US09963779
    • 2001-09-26
    • Scott SwixP. Thomas WatsonRandy S. Zimler
    • Scott SwixP. Thomas WatsonRandy S. Zimler
    • G06F17/00
    • H04N21/26613H04N21/25816H04N21/42676H04N21/42684H04N21/4405H04N21/63345H04N21/6547
    • A software conditional access system (CAS) for media services provided to a Media Distribution Device, such as a set top box (STB), is disclosed. The STB may be connected to a Media Delivery Service Provider via a broadband connection. Over the broadband connection, a CAS application may be downloaded to the STB, maintained and dynamically updated. Because the CAS is implemented by software on the STB, it is inexpensive to install, maintain and update. When a user desires to purchase media services through the STB, a request, with identifying information, is sent to the Media Delivery Service Provider via the broadband connection. The service provider cross-references the identifying information with a user's account to determine whether to allow the user to view the media service requested. If the service provider determines to allow the user to view the media service, the user's account (typically maintained by the service provider) is charged and a key is downloaded via the broadband connection to the STB. The key allows the user to view the requested media service to be presented for user viewing, hearing or other use. After the requested media service ends, after a predetermined amount of time, etc., the CAS application may delete the key.
    • 公开了一种提供给诸如机顶盒(STB)等媒体分发设备的媒体服务的软件条件访问系统(CAS)。 STB可以经由宽带连接连接到媒体传送服务提供商。 通过宽带连接,可以将CAS应用程序下载到STB,维护和动态更新。 由于CAS由STB上的软件实现,因此安装,维护和更新成本低廉。 当用户希望通过STB购买媒体服务时,带有识别信息的请求将通过宽带连接发送到媒体传送服务提供商。 服务提供商用用户帐户交叉引用识别信息,以确定是否允许用户查看请求的媒体服务。 如果服务提供商确定允许用户查看媒体服务,则用户的帐户(通常由服务提供商维护)被收费,并且通过宽带连接将密钥下载到STB。 密钥允许用户查看要呈现给用户观看,听觉或其他用途的所请求的媒体服务。 在所请求的媒体服务结束之后,在预定的时间等之后,CAS应用可以删除密钥。
    • 9. 发明授权
    • Motorized antenna pointing device
    • 电动天线定位装置
    • US06480161B2
    • 2002-11-12
    • US09751284
    • 2000-12-29
    • P. Thomas Watson
    • P. Thomas Watson
    • E04G300
    • H01Q3/02H01Q1/125
    • A portable alignment device for orienting an antenna in a desired azimuth orientation and methods for orienting an antenna in a desired azimuth orientation. In one embodiment, the device comprises a portable motor unit that is removably affixed to a portion of the antenna such as a portion of the antenna mounting bracket. A gear assembly is clamped to a portion of a mast to which the antenna mounting bracket is attached. The gear assembly is in meshing engagement with a driver gear attached to the motor's output shaft. By powering the motor, the antenna is pivoted about the mast until it is moved to a desired azimuth orientation. After the antenna has been oriented to a desired orientation and locked in that orientation, the portable motor unit is removed from the antenna and the gear assembly is removed from the mast to permit those devices to be used to orient other antennas.
    • 一种便携式对准装置,用于以期望的方位取向定向天线,以及用于以期望的方位取向定向天线的方法。 在一个实施例中,该装置包括便携式电动机单元,其可移除地固定到天线的一部分,例如天线安装支架的一部分。 齿轮组件被夹紧到天线安装支架附接到的桅杆的一部分上。 齿轮组件与连接到电动机的输出轴的驱动齿轮啮合。 通过为电机供电,天线围绕桅杆枢转,直到其移动到所需的方位角方向。 在天线已经被定向到期望的方向并被锁定在该方向之后,便携式电动机单元从天线移除,并且齿轮组件从桅杆移除,以允许这些装置用于定向其他天线。