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    METHODS AND APPARATUS TO REDUCE CHANNEL SWITCHING TIME
    11.
    发明申请
    METHODS AND APPARATUS TO REDUCE CHANNEL SWITCHING TIME 有权
    减少通道切换时间的方法和设备

    公开(公告)号：US20090183196A1

    公开(公告)日：2009-07-16

    申请号：US12353885

    申请日：2009-01-14

    申请人： AN MEI CHEN ,  Jangwon Lee

    发明人： AN MEI CHEN ,  Jangwon Lee

    IPC分类号： H04N7/167

    CPC分类号： H04L63/062 ,  H04L63/0428 ,  H04L2463/101 ,  H04N7/1675 ,  H04N21/23424 ,  H04N21/26609 ,  H04N21/4331 ,  H04N21/4384 ,  H04N21/44016 ,  H04N21/4623

    摘要： Methods and apparatus to reduce channel switching time. A method for channel switching includes bundling entitlement control messages (ECMs) to generate bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, and transmitting the bundled ECMs with the first content channel. An apparatus for channel switching includes key acquisition logic configured to receive bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, processing logic configured to receive a request to render a second content channel that is part of the one or more additional content channels, and decryption logic configured to utilize a selected decryption key obtained from the bundled ECMs to decrypt the second content channel.

    摘要翻译： 降低通道切换时间的方法和设备。 用于信道切换的方法包括捆绑授权控制消息（ECM）以分别生成包括与第一内容信道和一个或多个附加内容信道相关联的解密密钥的捆绑ECM，以及发送具有第一内容信道的捆绑ECM。 用于信道切换的装置包括密钥获取逻辑，其被配置为分别接收包含与第一内容信道和一个或多个附加内容信道相关联的解密密钥的捆绑ECM，处理逻辑被配置为接收呈现作为部分的第二内容信道的请求 以及被配置为利用从所捆绑的ECM获得的选择的解密密钥来解密所述第二内容信道的解密逻辑。

    Methods and apparatus for conditional access of non real-time content in a distribution system
    13.
    发明授权
    Methods and apparatus for conditional access of non real-time content in a distribution system 有权
    用于分配系统中非实时内容条件访问的方法和装置

    公开(公告)号：US08819843B2

    公开(公告)日：2014-08-26

    申请号：US12370478

    申请日：2009-02-12

    申请人： Prasanna Kannan ,  An Mei Chen ,  Thadi M. Nagaraj ,  Sajith Balraj ,  Jangwon Lee

    发明人： Prasanna Kannan ,  An Mei Chen ,  Thadi M. Nagaraj ,  Sajith Balraj ,  Jangwon Lee

    IPC分类号： G06F7/04

    CPC分类号： H04L63/062 ,  H04L63/10 ,  H04N7/1675 ,  H04N21/26606 ,  H04N21/63345

    摘要： Methods and apparatus for conditional access of non real-time (NRT) content in a distribution system. A method includes encrypting NRT content with a control word (CW) to generate encrypted NRT content, providing the CW to entitlement control message (ECM) generators, receiving ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and providing the encrypted NRT content and the ECMs for transmission over a distribution network. An apparatus includes a synchronizer configured to provide a CW to ECM generators and receive ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and a management module configured to encrypt the NRT content with the CW to generate encrypted NRT content and provide the encrypted NRT content and the ECMs for transmission over the distribution network.

    摘要翻译： 用于分发系统中非实时（NRT）内容条件访问的方法和装置。 一种方法包括用控制字（CW）对NRT内容进行加密以产生加密的NRT内容，向CW授权控制消息（ECM）生成器提供CW，从ECM生成器接收ECM，其中每个ECM包括CW的唯一加密以提供 对CW进行条件访问，以及提供加密的NRT内容和ECM，用于通过分发网络进行传输。 一种装置，包括配置成向ECM发生器提供CW并从ECM发生器接收ECM的同步器，其中每个ECM包括CW的唯一加密以提供对CW的条件访问;以及管理模块，被配置为用 CW产生加密的NRT内容，并提供经加密的NRT内容和ECM，用于通过分发网络进行传输。

    METHOD AND APPARATUS FOR CONTROLLING RESPONSE TO SERVICE NOTIFICATIONS IN A NETWORK ENVIRONMENT
    15.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING RESPONSE TO SERVICE NOTIFICATIONS IN A NETWORK ENVIRONMENT 有权
    控制网络环境中服务通知响应的方法与装置

    公开(公告)号：US20120173722A1

    公开(公告)日：2012-07-05

    申请号：US13418210

    申请日：2012-03-12

    申请人： An Mei Chen ,  Jangwon Lee

    发明人： An Mei Chen ,  Jangwon Lee

    IPC分类号： G06F15/173

    CPC分类号： H04L67/10 ,  G06F8/60 ,  H04L12/1895 ,  H04L67/06 ,  H04L67/34 ,  H04W4/06 ,  H04W28/00 ,  H04W68/02

    摘要： A method of providing content notifications to devices in a wireless communication system includes obtaining notification information comprising an identifier that defines a subset of a plurality of devices on a network configured to be responsive to content notifications; generating a notification message based on the obtained notification information to cause the subset of the plurality of devices to retrieve content from a network; and broadcasting the notification message over the network to the plurality of devices. The method also includes receiving content notifications in a wireless communication system, including receiving, in a wireless network, a notification message comprising an identifier that defines a subset of a plurality of devices on a network configured to be responsive to content notifications; and retrieving content from a network in response to being one of the subset of the plurality of devices as defined by the identifier of the received notification message.

    摘要翻译： 向无线通信系统中的设备提供内容通知的方法包括获得包括定义网络上的多个设备的子集的标识符的通知信息，该网络被配置为响应于内容通知; 基于所获得的通知信息生成通知消息，以使所述多个设备的子集从网络中检索内容; 以及通过所述网络向所述多个设备广播所述通知消息。 该方法还包括在无线通信系统中接收内容通知，包括在无线网络中接收包括定义网络上的多个设备的子集的标识符的通知消息，所述标识符被配置为响应于内容通知; 以及响应于由所接收的通知消息的标识符定义的多个设备的子集之一，从网络检索内容。

    METHOD FOR DELIVERY OF SOFTWARE UPGRADE NOTIFICATION TO DEVICES IN COMMUNCAITON SYSTEMS
    16.
    发明申请
    METHOD FOR DELIVERY OF SOFTWARE UPGRADE NOTIFICATION TO DEVICES IN COMMUNCAITON SYSTEMS 有权
    向COMMUNCAITON系统提供软件升级通知的方法

    公开(公告)号：US20120084765A1

    公开(公告)日：2012-04-05

    申请号：US13316367

    申请日：2011-12-09

    申请人： Jangwon Lee ,  An Mei Chen

    发明人： Jangwon Lee ,  An Mei Chen

    IPC分类号： G06F9/44

    CPC分类号： H04M1/72525 ,  G06F8/65 ,  H04W24/02 ,  Y02D10/42

    摘要： Systems and methodologies are described that facilitate providing software upgrade notifications to user devices that utilize unicast and multicast communication techniques in a wireless communication environment. Bandwidth and power consumption is minimized by permitting determination to be made regarding whether a given software update is relevant to the user device prior to attempting a download or receiving a notification thereof. Additionally, evaluation of version number and software identity facilitates determining whether to employ a unicast software check-up protocol or a multicast software check-up protocol. Software upgrade information may also be transmitted over a multicast channel for a predetermined time period, after which a user device may initiate a unicast check-up protocol to receive software upgrade information.

    摘要翻译： 描述了有助于向在无线通信环境中使用单播和多播通信技术的用户设备提供软件升级通知的系统和方法。 通过允许在尝试下载或接收其通知之前确定给定的软件更新是否与用户设备相关，来确定带宽和功率消耗。 此外，版本号和软件身份的评估有助于确定是否采用单播软件检查协议或组播软件检查协议。 软件升级信息还可以通过多播信道在预定时间段内传输，之后用户设备可以发起单播检查协议来接收软件升级信息。

    Dynamic feature-aware power management
    19.
    发明授权
    Dynamic feature-aware power management 有权
    动态功能感知电源管理

    公开(公告)号：US09088951B2

    公开(公告)日：2015-07-21

    申请号：US13252077

    申请日：2011-10-03

    申请人： Michael Barrett ,  Jangwon Lee

    发明人： Michael Barrett ,  Jangwon Lee

    IPC分类号： G05D3/12 ,  H04W52/02

    CPC分类号： H04W52/0264 ,  H04W52/0277 ,  Y02D70/164

    摘要： This disclosure relates to reducing battery usage in handheld communication devices due to operation of variable managed features, such as a location determination feature and other features that consume variable amounts of time and power. The techniques of this disclosure include dynamically managing a power budget allocated to one or more variable managed features of the handheld communication device based on power consumption over time by the variable managed features. More specifically, the techniques include, for each variable managed feature, recalculating a frequency for performing power events based on an amount of remaining power after one or more power events. The techniques also include reallocating the power budget to the one or more variable managed features based on an amount of remaining power after one or more power events of the variable managed features, a pre-determined period of time, or reaching a threshold level of power consumption jitter.

    摘要翻译： 本公开涉及由于可变管理特征（诸如位置确定特征和消耗可变量的时间和功率的其它特征）的操作而减少手持通信设备中的电池使用。 本公开的技术包括基于可变管理特征随时间的功率消耗来动态管理分配给手持通信设备的一个或多个可变管理特征的功率预算。 更具体地，技术包括对于每个可变管理特征，基于一个或多个电力事件之后的剩余电力量来重新计算用于执行电力事件的频率。 这些技术还包括基于在可变管理特征的一个或多个功率事件之后的剩余功率量，预定时间段或达到阈值功率电平，将功率预算重新分配给一个或多个可变管理特征 消耗抖动。