HYBRID CORRECTIVE SCHEME FOR DROPPED PACKETS
    1.
    发明申请
    HYBRID CORRECTIVE SCHEME FOR DROPPED PACKETS 有权
    用于包装盒的混合校正方案

    公开(公告)号:US20080256409A1

    公开(公告)日:2008-10-16

    申请号:US11735930

    申请日:2007-04-16

    IPC分类号: G08C25/02

    摘要: In one embodiment, a hybrid packet repair scheme adaptively switches among unicast retransmission, multicast retransmission, and Forward Error Correction (FEC) depending on the receiver population and the nature of the error prompting the repair operation. The NACK patterns are used to heuristically determine the degree of correlation among packet losses. In an additional embodiment, wasting bandwidth and processing on retransmissions of FEC that will fail to correct the errors is avoided by evaluating the nature of the error and the bandwidth needed to optimally repair it. Unicast retransmission, multicast retransmission, or FEC repair is then dynamically performed according to the loss patterns derived from the NACK arrivals and other network conditions.

    摘要翻译: 在一个实施例中,混合分组修复方案根据接收机群体和提示修复操作的错误的性质自适应地在单播重传,多播重传和前向纠错(FEC)之间切换。 NACK模式用于启发式地确定分组丢失之间的相关程度。 在另外的实施例中,通过评估错误的性质和最佳修复所需的带宽来避免浪费带宽以及无法纠正错误的FEC重传处理。 然后根据从NACK到达和其他网络条件导出的丢失模式来动态地执行单播重传,多播重传或FEC修复。

    EXPEDITED DIGITIAL SIGNAL DECODING
    3.
    发明申请
    EXPEDITED DIGITIAL SIGNAL DECODING 有权
    有针对性的信号解码

    公开(公告)号:US20070130393A1

    公开(公告)日:2007-06-07

    申请号:US11164147

    申请日:2005-11-11

    申请人: William Versteeg

    发明人: William Versteeg

    IPC分类号: G06F3/00

    摘要: Expedited digital signal decoding. A multicast or unicast data stream is sent from a headend to a set-top box at a natural rate. A decoder buffer in the set-top box begins to fill. Once the buffer is partially full, a decoder begins to decode the data at a rate lower than the natural rate. Images are displayed to the user before the buffer is full, allowing for a faster channel change.

    摘要翻译: 加速数字信号解码。 多播或单播数据流以自然速率从头端发送到机顶盒。 机顶盒中的解码器缓冲区开始填充。 一旦缓冲器部分满载,解码器开始以低于自然速率的速率解码数据。 在缓冲区已满之前,会向用户显示图像,从而可以更快地改变频道。

    Monitoring and correcting upstream packet loss
    6.
    发明授权
    Monitoring and correcting upstream packet loss 有权
    监控和纠正上游数据包丢失

    公开(公告)号:US08711854B2

    公开(公告)日:2014-04-29

    申请号:US13435431

    申请日:2012-03-30

    IPC分类号: H04H20/71 H04L12/28 H04L1/18

    摘要: An upstream error controller monitors a media stream at a location upstream from an associated set of receivers receiving the media stream. The upstream error controller sends out suppression notices for any media packets lost upstream causing the receivers to suppress sending lost packet notices. In another embodiment, a repair point joins a primary multicast group with multiple receivers for receiving a native media stream. The repair point also joins a second multicast group receiving multicast backup data for retransmitting or repairing the native media stream that does not include an associated set of receivers. In yet another embodiment, the upstream error controller is used in combination with a hybrid packet repair scheme for adaptively switching among unicast retransmission, multicast retransmission, and Forward Error Correction (FEC).

    摘要翻译: 上游错误控制器在接收媒体流的相关接收器组的上游位置处监视媒体流。 上游错误控制器向上游丢失的任何媒体数据包发出禁止通知,导致接收方抑制发送丢失的数据包通知。 在另一个实施例中,修复点将主多播组与多个接收器连接以接收本地媒体流。 修复点还加入接收组播备份数据的第二组播组,用于重传或修复不包括相关组接收机的本地媒体流。 在另一个实施例中,上游错误控制器与用于在单播重传,多播重传和前向纠错(FEC)之间进行自适应切换的混合分组修复方案组合使用。

    Content Tagging of Media Streams
    7.
    发明申请
    Content Tagging of Media Streams 有权
    媒体流的内容标记

    公开(公告)号:US20100169503A1

    公开(公告)日:2010-07-01

    申请号:US12344719

    申请日:2008-12-29

    IPC分类号: G06F15/16

    CPC分类号: H04L65/605 H04L67/2804

    摘要: In one embodiment, a network device comprises a tag processor configured to process a media stream received at the network device. The media stream is sent through a network to a desired destination. The tag processor comprises at least one of a tag inserter module and a tag module. The tag inserter module inserts a tag into the media stream, the tag indicating content of the media stream and the network device providing the tag. The tag module identifies and reports a value of a tag received within the media stream, and forwards the media stream to a user and/or compares the identified value to an expected tag value, and forwards the media stream to a user in the event that the comparison indicates a match. The present invention embodiments further include a method and logic for content tagging of the media stream.

    摘要翻译: 在一个实施例中,网络设备包括被配置为处理在网络设备处接收的媒体流的标签处理器。 媒体流通过网络发送到所需目的地。 标签处理器包括标签插入器模块和标签模块中的至少一个。 标签插入器模块将标签插入到媒体流中,标签指示媒体流的内容和提供标签的网络设备。 标签模块识别并报告在媒体流内接收到的标签的值,并将媒体流转发给用户和/或将所识别的值与期望的标签值进行比较,并且在以下情况下将媒体流转发给用户: 比较表示匹配。 本发明实施例还包括用于媒体流的内容标记的方法和逻辑。

    MONITORING AND CORRECTING UPSTREAM PACKET LOSS
    8.
    发明申请
    MONITORING AND CORRECTING UPSTREAM PACKET LOSS 审中-公开
    监控和校正上游包裹损失

    公开(公告)号:US20080253369A1

    公开(公告)日:2008-10-16

    申请号:US11736463

    申请日:2007-04-17

    IPC分类号: H04L12/26 H04L12/56

    摘要: An upstream error controller monitors a media stream at a location upstream from an associated set of receivers receiving the media stream. The upstream error controller sends out suppression notices for any media packets lost upstream causing the receivers to suppress sending lost packet notices. In another embodiment, a repair point joins a primary multicast group with multiple receivers for receiving a native media stream. The repair point also joins a second multicast group receiving multicast backup data for retransmitting or repairing the native media stream that does not include an associated set of receivers. In yet another embodiment, the upstream error controller is used in combination with a hybrid packet repair scheme for adaptively switching among unicast retransmission, multicast retransmission, and Forward Error Correction (FEC).

    摘要翻译: 上游错误控制器在接收媒体流的相关接收器组的上游位置处监视媒体流。 上游错误控制器向上游丢失的任何媒体数据包发出禁止通知,导致接收方抑制发送丢失的数据包通知。 在另一个实施例中,修复点将主多播组与多个接收器连接以接收本地媒体流。 修复点还加入接收组播备份数据的第二组播组,用于重传或修复不包括相关组接收机的本地媒体流。 在另一个实施例中,上游错误控制器与用于在单播重传,多播重传和前向纠错(FEC)之间进行自适应切换的混合分组修复方案组合使用。

    Systems and Methods of Assembling an Elementary Stream from an Encapsulated Multimedia Transport Stream
    9.
    发明申请
    Systems and Methods of Assembling an Elementary Stream from an Encapsulated Multimedia Transport Stream 有权
    从封装的多媒体传输流中组装基本流的系统和方法

    公开(公告)号:US20080005776A1

    公开(公告)日:2008-01-03

    申请号:US11829309

    申请日:2007-07-27

    IPC分类号: H04N7/16

    摘要: Systems and methods of assembling an elementary stream from an encapsulated multimedia transport stream are disclosed. An exemplary method includes: receiving a command from a user mode video playback component; in response, processing layer-2 packets received through a network interface driver binding to assemble, into an MPEG elementary stream, multimedia transport packets encapsulated within; and supplying the stream to a decoder. The receiving and processing steps are performed in kernel mode. Also disclosed is an exemplary digital home communication terminal that includes a network interface, memory, and a processor. The processor executes code to: receive a command from a user mode video playback component; process layer-2 packets received through a network interface driver binding, in order to assemble into an MPEG elementary stream multimedia transport packets encapsulated within the received layer-2 packets; and supply the elementary stream to a decoder. The receive and process operations are performed in kernel mode.

    摘要翻译: 公开了从封装的多媒体传输流组装基本流的系统和方法。 一种示例性方法包括:从用户模式视频播放组件接收命令; 作为响应,通过网络接口驱动程序接收的处理层-2分组被组合成MPEG基本流,封装在其中的多媒体传输分组; 并将流提供给解码器。 接收和处理步骤在内核模式下执行。 还公开了包括网络接口,存储器和处理器的示例性数字家庭通信终端。 处理器执行代码以从用户模式视频播放组件接收命令; 通过网络接口驱动程序绑定接收到的处理层-2数据包,以便组装成MPEG基本流中封装在接收的第二层数据包内的多媒体传输数据包; 并将基本流提供给解码器。 接收和处理操作在内核模式下执行。

    METHOD AND APPARATUS FOR LOCAL STORAGE AND INSERTION OF TELEVISION COMMERCIALS
    10.
    发明申请
    METHOD AND APPARATUS FOR LOCAL STORAGE AND INSERTION OF TELEVISION COMMERCIALS 有权
    本地存储和电视商业插入的方法与装置

    公开(公告)号:US20070266400A1

    公开(公告)日:2007-11-15

    申请号:US11828492

    申请日:2007-07-26

    摘要: A method and system for inserting television commercials that are selected according to the unique interests and purchasing habits of viewers in individual households, or the relative location of the household within a local broadcast area. The present system provides a cable or satellite television set top box that stores a plurality of television commercials for products or services that have been found to be of interest to viewers in a household that uses the set top box. At commercial breaks during the broadcast of network television programs, the television network indicates when the set top box is authorized to insert a stored television commercial instead of a broadcast commercial. If the set top box locates a locally stored commercial that is appropriate for the television program and the user, the commercial is inserted into the commercial break.

    摘要翻译: 一种插入电视广告的方法和系统,根据个人户的独特兴趣和观众的购买习惯,或家庭在本地广播区域内的相对位置进行选择。 本系统提供一种有线或卫星电视机顶盒,其存储已经被发现对使用机顶盒的家庭中的观众感兴趣的产品或服务的多个电视广告。 在广播网络电视节目的商业休息期间,电视网络指示机顶盒何时被授权插入存储的电视广告而不是广播商业广告。 如果机顶盒找到适合于电视节目和用户的本地存储的商业广告,则商业广告被插入商业广告。