Failover with redundant multicasts for switched digital video
    3.
    发明授权
    Failover with redundant multicasts for switched digital video 有权
    用于切换数字视频的冗余组播故障切换

    公开(公告)号:US09124523B2

    公开(公告)日:2015-09-01

    申请号:US12614058

    申请日:2009-11-06

    摘要: A method and system for delivering content is provided. In one example, responsive to a request by a client device identifying a video program, the system is configured to determine different first and second network paths for delivery of the video program from a content source; deliver the video program via the first network path to the client device; and responsive to a change in status of the video program being delivered via the first network path, deliver the video program via the second network path to the client device.

    摘要翻译: 提供了一种用于传送内容的方法和系统。 在一个示例中,响应于识别视频节目的客户端设备的请求,系统被配置为确定用于从内容源传送视频节目的不同的第一和第二网络路径; 通过第一网络路径将视频节目传送到客户端设备; 并且响应于经由所述第一网络路径传递的所述视频节目的状态的改变,经由所述第二网络路径将所述视频节目传送到所述客户端设备。

    Content Archive Model
    4.
    发明申请
    Content Archive Model 有权
    内容存档模型

    公开(公告)号:US20120210382A1

    公开(公告)日:2012-08-16

    申请号:US13024870

    申请日:2011-02-10

    IPC分类号: H04N7/173

    摘要: An archive model can be used for managing networked storage of recorded content, such as network DVR (digital video recorder) content. Content may be initially recorded to an active storage device, with individual duplicate copies recorded for each requesting user, and subsequently archived to an archive storage device. For playback, the content can be reconstituted into the active storage device prior to delivery to the requesting user. Content can be predictively reconstituted in anticipation of user needs, and the reconstitution capacity of the system can be dynamically reallocated for load balancing.

    摘要翻译: 存档模型可用于管理记录内容的网络存储,如网络DVR(数字录像机)内容。 可以将内容最初记录到活动存储设备,其中为每个请求用户记录单独的副本,并随后归档到归档存储设备。 对于播放,可以在传送到请求用户之前将内容重新配置到活动存储设备中。 内容可以根据用户需求进行预测性重构,并且可以动态地重新分配系统的重构容量以进行负载平衡。

    Method of using tokens and policy descriptors for dynamic on demand session management
    5.
    发明授权
    Method of using tokens and policy descriptors for dynamic on demand session management 有权
    使用令牌和策略描述符进行动态点播会话管理的方法

    公开(公告)号:US08099508B2

    公开(公告)日:2012-01-17

    申请号:US11275175

    申请日:2005-12-16

    IPC分类号: G06F15/16

    摘要: Tokens and policy descriptors are used for dynamic on demand session management in a distributed and scalable architecture for on demand sessions and resource management. The architecture includes an on demand client, a purchase server, and a session manager. A purchase token is generated at the purchase server and assigned to the on demand client. The purchase token represents at least one requested asset. In response to an on demand session set-up request corresponding to the purchase token from the on demand client to the session manager, the purchase token is expanded to generate at least one dynamic policy management descriptor for the on demand session. This provides token-based purchase authorization and policy management for on demand services.

    摘要翻译: 令牌和策略描述符用于分布式和可扩展架构中的动态按需会话管理,用于按需会话和资源管理。 架构包括按需客户端,购买服务器和会话管理器。 购买令牌在采购服务器处生成并分配给按需客户端。 购买凭证代表至少一个请求的资产。 响应于从按需客户端到会话管理器的购买令牌对应的按需会话建立请求,扩展购买令牌以生成用于按需请求会话的至少一个动态策略管理描述符。 这为按需服务提供了基于令牌的购买授权和策略管理。

    FAILOVER WITH REDUNDANT MULTICASTS FOR SWITCHED DIGITAL VIDEO
    6.
    发明申请
    FAILOVER WITH REDUNDANT MULTICASTS FOR SWITCHED DIGITAL VIDEO 有权
    用于开关数字视频的冗余多媒体故障

    公开(公告)号:US20110113462A1

    公开(公告)日:2011-05-12

    申请号:US12614058

    申请日:2009-11-06

    IPC分类号: H04N7/173 H04L12/28 H03D1/24

    摘要: A method and system for delivering content is provided. In one example, responsive to a request by a client device identifying a video program, the system is configured to determine different first and second network paths for delivery of the video program from a content source; deliver the video program via the first network path to the client device; and responsive to a change in status of the video program being delivered via the first network path, deliver the video program via the second network path to the client device.

    摘要翻译: 提供了一种用于传送内容的方法和系统。 在一个示例中,响应于识别视频节目的客户端设备的请求,系统被配置为确定用于从内容源传送视频节目的不同的第一和第二网络路径; 通过第一网络路径将视频节目传送到客户端设备; 并且响应于经由所述第一网络路径传递的所述视频节目的状态的改变,经由所述第二网络路径将所述视频节目传送到所述客户端设备。

    Splicing compressed packetized digital video streams
    8.
    发明授权
    Splicing compressed packetized digital video streams 失效
    拼接压缩分组数字视频流

    公开(公告)号:US5917830A

    公开(公告)日:1999-06-29

    申请号:US734629

    申请日:1996-10-18

    摘要: A secondary packetized data stream, such as a commercial, is spliced with a primary packetized data stream, such as a network television program. The system does not require decompression of the data in the primary data stream, and is particularly suitable for use at a cable system headend to allow the insertion of commercials from local businesses into a nationally broadcast television program. When a start signal is received, a pre-splicing packet of the primary stream is determined. The pre-splicing packet is the packet closest to the start time which carries an anchor frame (e.g., I or P frame) start code. To prevent a potential discontinuity at the decoder, the pre-splicing packet is processed to discard the anchor frame data, and to insert a number of stuffing bytes which is equal to the number of bytes discarded into an adaptation field of the pre-splicing packet. To further maintain continuity at the decoder, identifying data of the primary stream such as PID and PSI data, is retrieved and provided to the secondary stream. A number of null packets are inserted into the output stream at the transition point between the main program and the commercial to prevent a buffer overflow at a decoder which receives the output stream.

    摘要翻译: 诸如商业广告的次级分组化数据流用诸如网络电视节目的主分组数据流进行拼接。 该系统不需要对主数据流中的数据进行解压缩,并且特别适合于在有线系统头端使用以允许将本地商家的广告插入到全国广播电视节目中。 当接收到起始信号时,确定主流的预拼接分组。 预拼接分组是最接近开始时间的分组,其携带锚帧(例如,I帧或P帧)起始码。 为了防止在解码器处的潜在不连续性,处理预拼接分组以丢弃锚帧数据,并插入等于丢弃到预拼接分组的适配字段中的字节数的多个填充字节 。 为了进一步保持解码器的连续性,检索和识别诸如PID和PSI数据的主流的数据,并将其提供给次流。 在主程序和商业广告之间的转换点处,将多个空分组插入到输出流中,以防止在接收输出流的解码器处的缓冲器溢出。

    Indirect control of content consumption in an appliance
    9.
    发明授权
    Indirect control of content consumption in an appliance 有权
    间接控制设备中的内容消耗

    公开(公告)号:US09219947B2

    公开(公告)日:2015-12-22

    申请号:US13312475

    申请日:2011-12-06

    IPC分类号: G06F15/16 H04N21/472

    摘要: Aspects of the disclosure relate to control of consumption of content in an appliance. The content can include linear programming and non-linear assets. Such control can permit (i) changing a channel in the appliance (e.g., a CPE without upstream functionality) and thus selecting a linear-programming asset, a non-linear asset, and so forth, and (ii) controlling consumption of such assets. In one aspect, a device with upstream network connectivity can control the consumption of media in the appliance. The device can leverage data management and control functionality of a service provider network to acquire information related to assets available for consumption and to transmit asset requests to the service provider network, which can transmit content and signaling to the appliance in accordance at least in part with the asset request, thus controlling media consumption in the appliance.

    摘要翻译: 本公开的方面涉及对器具中的内容消耗的控制。 内容可以包括线性规划和非线性资产。 这种控制可以允许(i)改变设备中的通道(例如,没有上游功能的CPE),从而选择线性规划资产,非线性资产等,以及(ii)控制这些资产的消费 。 在一个方面,具有上游网络连接的设备可以控制设备中的介质的消耗。 该设备可以利用服务提供商网络的数据管理和控制功能来获取与可用于消费的资产相关的信息,并且将资产请求传送到服务提供商网络,服务提供商网络可以至少部分地根据 资产请求,从而控制设备中的媒体消费。

    Tunable two-mirror interference lithography system
    10.
    发明授权
    Tunable two-mirror interference lithography system 有权
    可调双镜面干涉光刻系统

    公开(公告)号:US08681315B2

    公开(公告)日:2014-03-25

    申请号:US13547824

    申请日:2012-07-12

    IPC分类号: G02B7/198

    CPC分类号: G02B26/0816 G03F7/70408

    摘要: A two-beam interference lithography system offers large-area nanopatterning with tunability of pattern periodicities. The tunable feature is achieved by placing two rotatable mirrors in the two expanded beam paths which can conveniently be regulated for the designed pattern periodicities. While the effective interference pattern coverage is mainly determined by the optical coherence length and mirror size, the minimum pattern coverage area is as large as the effective coherence length of the laser and the selected mirror size over a wide range of periodicities.

    摘要翻译: 双光束干涉光刻系统提供具有图案周期性可调性的大面积纳米图案。 可调谐特征是通过将两个可旋转反射镜放置在两个扩展光束路径中来实现的,其可以方便地针对设计的图案周期性进行调节。 虽然有效的干涉图案覆盖主要由光学相干长度和镜面尺寸确定,但是最小图案覆盖区域与激光器的有效相干长度和选定的镜面尺寸在宽范围的周期性上一样大。