Apparatus for controlling quantizing in a video signal compressor
    2.
    发明授权
    Apparatus for controlling quantizing in a video signal compressor 失效
    用于控制视频信号压缩器中的量化的装置

    公开(公告)号:US5426463A

    公开(公告)日:1995-06-20

    申请号:US20920

    申请日:1993-02-22

    CPC classification number: H04N19/152 H04N19/126 H04N19/176 H04N19/61

    Abstract: A rate controlled VBR quantizing system includes a quantizer for quantizing partially compressed video data and further apparatus for monitoring the amount of compressed output data. Dependent upon the amount of compressed output data being lesser or greater than a predetermined value, the quantizer is conditioned to operate in a fixed quantization mode, or a mode wherein only selected blocks of data in respective frames are adaptively quantized, respectively.

    Abstract translation: 速率控制的VBR量化系统包括用于量化部分压缩的视频数据的量化器和用于监视压缩输出数据的量的另外的装置。 取决于较小或大于预定值的压缩输出数据的量,量化器被调节为以固定量化模式操作,或者其中只分别对各帧中的所选数据块进行自适应量化的模式。

    Dynamic content based multicast routing in mobile networks
    4.
    发明授权
    Dynamic content based multicast routing in mobile networks 有权
    在移动网络中基于动态内容的组播路由

    公开(公告)号:US07293109B2

    公开(公告)日:2007-11-06

    申请号:US10271502

    申请日:2002-10-15

    Abstract: The present invention changes the wireless information service paradigm from a connection-oriented unicast network model to a dynamic content-driven multicast model using a technique called “content routing.” The present invention provides a system, method, and medium for routing content through a network from at least one content provider to at least one content consumer, wherein at least one of the content consumer or content provider communicate with the network using a wireless device. The content is routed though the network based on its content. The content is labeled with at least one content descriptor. The content descriptor characterizes or otherwise describes the content. Interest profiles are received from content consumers. Interest profiles from content consumers with a common network access point are aggregated into a single interest profile. Interest profiles can include more than the wireless consumers stated interest, such as for example, a content consumer's geographic location, the capabilities of the wireless terminal, type of service, policy preferences, and the like. Single interest profiles are shared across neighboring network access points to create a content routing table. Content, labeled with at least one descriptor, is routed through the network to content consumers based, in part, on content routing tables created from wireless content consumers'profiles.

    Abstract translation: 本发明使用称为“内容路由”的技术将无线信息服务范例从面向连接的单播网络模型改变为动态内容驱动的多播模型。 本发明提供了一种用于通过网络将内容从至少一个内容提供商路由到至少一个内容消费者的系统,方法和介质,其中内容消费者或内容提供者中的至少一个使用无线设备与网络通信。 内容根据其内容通过网络进行路由。 内容用至少一个内容描述符标记。 内容描述符描述或描述内容。 从内容消费者收到兴趣个人资料。 来自具有公共网络接入点的内容消费者的兴趣简档被聚合成单个兴趣简档。 兴趣简档可以包括超过无线消费者所表达的兴趣,例如内容消费者的地理位置,无线终端的能力,服务类型,策略偏好等。 单个兴趣简档在相邻网络接入点之间共享以创建内容路由表。 标有至少一个描述符的内容部分地基于从无线内容消费者的配置文件创建的内容路由表,通过网络路由到内容消费者。

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