Method for bandwidth regulation on a cable television system channel
    1.
    发明授权
    Method for bandwidth regulation on a cable television system channel 有权
    有线电视系统频道带宽调节方法

    公开(公告)号:US08442110B2

    公开(公告)日:2013-05-14

    申请号:US12248059

    申请日:2008-10-09

    摘要: A method for regulating bandwidth usage in an output data stream transmitted on an analog channel from a cable head end. The output data stream comprises a plurality of input information content signals. For each input information content signal, a series of images are captured, compressed and formed into an input digital data stream. The bandwidth of each input digital data stream is regulated by associating the stream with a current bit allocation total. During each frame time: a bit allocation increment is added to the current bit allocation total for each input digital data stream. When a data packet to be transmitted for an input digital data stream is received by the multiplexer, the data packet is stored. When the number of bits in the stored data packet is not more than the current bit allocation total for the input digital data stream, the multiplexer forwards the stored data packet for transmission in the output data stream on the analog channel and decrements the current bit allocation total for the given input digital data stream by the number of bits in the stored data packet. In this way, no individual input channel takes more than its share of the bandwidth on the output stream on the analog channel.

    摘要翻译: 一种用于调节从电缆头端在模拟通道上发送的输出数据流中的带宽使用的方法。 输出数据流包括多个输入信息内容信号。 对于每个输入信息内容信号,一系列图像被捕获,压缩并形成为输入数字数据流。 通过将流与当前位分配总数相关联来调节每个输入数字数据流的带宽。 在每个帧时间期间:对于每个输入数字数据流,将一个位分配增量添加到当前位分配总数。 当由多路复用器接收要输入的数字数据流的数据包时,存储数据包。 当存储的数据分组中的比特数不超过输入数字数据流的当前比特分配总数时,多路复用器将所存储的数据分组转发到模拟信道上的输出数据流中以便传输,并减少当前比特分配 给定输入数字数据流的总数乘以存储数据分组中的位数。 以这种方式,没有单独的输入通道在模拟通道上的输出流上占用超过其带宽的份额。

    MPEG objects and systems and methods for using MPEG objects
    3.
    发明申请
    MPEG objects and systems and methods for using MPEG objects 有权
    MPEG对象和使用MPEG对象的系统和方法

    公开(公告)号:US20080178249A1

    公开(公告)日:2008-07-24

    申请号:US12008722

    申请日:2008-01-11

    IPC分类号: H04N7/16

    摘要: An MPEG object is an object-oriented data structure that may be used in the creation of interactive MPEG video stream. The MPEG object data structure includes an MPEG object interface defining data received by the MPEG object and data output by the MPEG object. The MPEG object data structure further includes either one or more MPEG video elements or an association to one or more MPEG video elements. The MPEG video elements are preferably defined as MPEG slices that include a plurality of encoded macroblocks. Additionally, the data structure may provide a method for receiving input through the MPEG object interface and in response to input from the client device outputting an MPEG video element. In certain configurations, the MPEG object contains a method that maintains state data for the MPEG object. The state data may be used to select between a plurality of MPEG elements to output. In other configurations, the MPEG object includes a method that provides for the control of streaming MPEG content from a source external to the MPEG object.

    摘要翻译: MPEG对象是可以用于创建交互式MPEG视频流的面向对象的数据结构。 MPEG对象数据结构包括定义由MPEG对象接收的数据的MPEG对象接口和由MPEG对象输出的数据。 MPEG对象数据结构还包括一个或多个MPEG视频元素或与一个或多个MPEG视频元素的关联。 MPEG视频元件优选地被定义为包括多个编码宏块的MPEG片。 此外,数据结构可以提供用于通过MPEG对象接口接收输入并响应于输出MPEG视频元素的客户端设备的输入的方法。 在某些配置中,MPEG对象包含维护MPEG对象的状态数据的方法。 状态数据可以用于在多个MPEG元素之间进行选择以输出。 在其他配置中,MPEG对象包括提供从MPEG对象外部的源流传输MPEG内容的控制的方法。

    Automatic video program recording in an interactive television environment
    4.
    发明申请
    Automatic video program recording in an interactive television environment 审中-公开
    在互动电视环境中自动录像

    公开(公告)号:US20080212942A1

    公开(公告)日:2008-09-04

    申请号:US12012491

    申请日:2008-02-01

    IPC分类号: H04N7/26

    摘要: Systems and methods for recording a broadcast video program are disclosed. The system is coupled to a television of a user. The broadcast video program is displayed on the user's television and includes associated user selectable material. The system has an input for receiving the broadcast video program and the associated selectable material. A user interface device operates with the system allowing a user to select the selectable material. In response to selection of the selectable material, a processing module requests interactive content related to the selectable material from a processing office. In response to the selection of the selectable material, the system causes a video recorder to automatically begin recording of the broadcast video program. The interactive content is then displayed on the user's television. When the user has finished interacting with the interactive content, the recorded video program is retrieved and displayed on the user's television at the point in the video program when the selectable material was requested.

    摘要翻译: 公开了用于记录广播视频节目的系统和方法。 该系统耦合到用户的电视机。 广播视频节目显示在用户的电视上,并且包括相关联的用户可选择的素材。 该系统具有用于接收广播视频节目和相关可选择素材的输入。 用户接口设备与系统一起操作,允许用户选择可选择的材料。 响应于可选择材料的选择,处理模块从处理办公室请求与可选材料相关的交互式内容。 响应于可选择材料的选择,系统使录像机自动开始录制广播视频节目。 交互式内容随后显示在用户的电视上。 当用户已经完成与交互内容的交互时,当请求可选择的材料时,记录的视频节目被检索并显示在视频节目的点处的用户的电视上。

    Using Triggers with Video for Interactive Content Identification
    7.
    发明申请
    Using Triggers with Video for Interactive Content Identification 审中-公开
    使用触发器与视频进行交互式内容识别

    公开(公告)号:US20080201736A1

    公开(公告)日:2008-08-21

    申请号:US12035236

    申请日:2008-02-21

    IPC分类号: H04N7/025 H04N5/445 H04N7/173

    摘要: Access to interactive content at a client device through the use of triggers is disclosed. The client device is coupled to a television communication network and receives an encoded broadcast video stream containing at least one trigger. The client device decodes the encoded broadcast video stream and parses the broadcast video stream for triggers. As the broadcast video stream is parsed, the stream is output to a display device. When a trigger is identified, the client device automatically tunes to an interactive content channel. The client device sends a signal indicative of the trigger through the television communication network to the processing office. The processing office can then use the information contained within the trigger signal to provide content to the client device. The content may be interactive content, static content, or the broadcast program stitched with interactive or static content. The user of the client device can then interact with any interactive content.

    摘要翻译: 公开了通过使用触发器访问客户端设备上的交互式内容。 客户端设备耦合到电视通信网络并且接收包含至少一个触发的编码广播视频流。 客户端设备解码编码的广播视频流并解析用于触发的广播视频流。 当广播视频流被解析时,流被输出到显示设备。 当触发器被识别时,客户机设备自动调谐到交互式内容通道。 客户端设备通过电视通信网络将指示触发的信号发送到处理室。 处理办公室然后可以使用包含在触发信号内的信息来向客户端设备提供内容。 内容可以是交互式内容,静态内容或者用交互式或静态内容缝合的广播节目。 然后,客户端设备的用户可以与任何交互式内容进行交互。

    Streaming digital video between video devices using a cable television system
    8.
    发明授权
    Streaming digital video between video devices using a cable television system 有权
    使用有线电视系统在视频设备之间流式传输数字视频

    公开(公告)号:US09021541B2

    公开(公告)日:2015-04-28

    申请号:US13273803

    申请日:2011-10-14

    摘要: Systems and methods are presented that permit an individual to share digital video between video devices using a cable television system. A first video device streams digital video to a cable headend, which transcodes it and stitches it with other video content, such as a menuing system. The headend then transmits the digital video to a second video device, such as a set top box, for display. The data stream may be controlled using a standard set top box remote control, and the system may be used without purchasing additional hardware or software, or configuring a wireless local area network.

    摘要翻译: 呈现允许个人使用有线电视系统在视频设备之间共享数字视频的系统和方法。 第一视频设备将数字视频流式传输到电缆头端,该前端对其进行转码并与其他视频内容(例如菜单系统)进行缝合。 前端然后将数字视频发送到诸如机顶盒的第二视频设备用于显示。 可以使用标准机顶盒遥控器来控制数据流,并且可以在不购买额外的硬件或软件或配置无线局域网的情况下使用该系统。

    Reduction of Latency in Video Distribution Networks Using Adaptive Bit Rates
    9.
    发明申请
    Reduction of Latency in Video Distribution Networks Using Adaptive Bit Rates 有权
    使用自适应比特率减少视频分配网络中的延迟

    公开(公告)号:US20120257671A1

    公开(公告)日:2012-10-11

    申请号:US13438617

    申请日:2012-04-03

    IPC分类号: H04N7/26

    摘要: Systems and methods are provided for reducing and controlling playback latency in an unmanaged, buffered data network. A delay cost function is determined, the function representing the effect of playback latency on end user experience. An encoder transmits audiovisual data through the network to a client device. Network latency is measured, and the delay cost function is evaluated to establish an encoding bitrate for the encoder. The encoding of the audiovisual data is altered in response to dynamic network conditions, thereby controlling end-to-end playback latency of the system, which is represented by the playout length of data buffered between the encoder and the client device.

    摘要翻译: 提供了系统和方法,用于减少和控制非托管缓冲数据网络中的播放延迟。 确定延迟成本函数,表示播放延迟对最终用户体验的影响的功能。 编码器通过网络将视听数据发送到客户端设备。 测量网络延迟,并评估延迟成本函数以建立编码器的编码比特率。 响应于动态网络条件改变视听数据的编码,从而控制系统的端到端回放延迟,其由在编码器和客户端设备之间缓冲的数据的播出长度来表示。