公开(公告)号：US09319753B2

公开(公告)日：2016-04-19

申请号：US13958477

申请日：2013-08-02

申请人： BROADCOM CORPORATION

发明人： Hongtao Zhu ,  Alexander Garland Macinnis

IPC分类号： H04N21/242 ,  H04N21/6587 ,  H04N19/40 ,  H04N21/2187 ,  H04N21/2343 ,  H04N21/2387 ,  H04N21/845 ,  H04N21/854

CPC分类号： H04N21/6587 ,  H04N19/40 ,  H04N21/2187 ,  H04N21/234336 ,  H04N21/23439 ,  H04N21/2387 ,  H04N21/242 ,  H04N21/8456 ,  H04N21/85406

摘要： A method for performing trick-mode operations with decreased latency for transcode streaming includes receiving and recording a stream of video data. A single transcoder may transcode the stream of video data and generate output video data in an output buffer following. Segmentation index information may be generated that refers to the output data in the output buffer. Skip-backwards, skip-ahead, and resume requests received from a client device are responded by retrieving transcoded video data from the output buffer or retrieving and transcoding video data from an input storage. A method for performing skip-ahead trick-mode operation with decreased latency may use two transcoders such as two threads of the single transcoder to transcode temporally current content and forward content. The forward content may be associated with a forward time offset with respect to the temporally current content. The transcoded forward content is provided in response to skip-ahead trick mode request.

摘要翻译： 用于以降低的代码转换流程执行特技模式操作的方法包括接收和记录视频数据流。 单个代码转换器可对视频数据流进行代码转换，并在输出缓冲器之后生成输出视频数据。 可以生成指向输出缓冲器中的输出数据的分段索引信息。 通过从输出缓冲器检索经转码的视频数据或从输入存储器检索和代码转换视频数据来响应从客户端设备接收到的向后，向前，跳过和恢复请求。 用于以降低的等待时间进行跳过特技模式操作的方法可以使用诸如单个代码转换器的两个线程的两个代码转码器对时间上当前的内容进行转码并转发内容。 前向内容可以与相对于时间上的当前内容的前向时间偏移相关联。 响应于跳过提示特技模式请求提供经转码的前向内容。

公开(公告)号：US20140359166A1

公开(公告)日：2014-12-04

申请号：US13933046

申请日：2013-07-01

申请人： Broadcom Corporation

发明人： Rajesh Shankarrao Mamidwar ,  Wade Keith Wan ,  Hongtao Zhu

IPC分类号： H04L29/08 ,  H04L29/06

CPC分类号： H04N21/8456 ,  H04L65/605 ,  H04N21/23439 ,  H04N21/472 ,  H04N21/6587

摘要： An device and method for providing multiple adaptive bit rate (ABR) streams using a single transcoder is disclosed. The device receives a group of content segments for a media channel, and converts, using a transcoder, a first of the content segments from a source format to a first data format, a first time duration for converting the first content segment being less than a second time duration for receiving each group of segments. The converted segment is then sent to a client device. On receiving a request from the device for content segments in a second data format, the device performs an initialization of the transcoder to convert content segments from the source format to the second data format, the initialization being completed during a residual period of time, or “operational gap” produced by a difference between the first time duration and the second time duration.

摘要翻译： 公开了一种使用单个代码转换器提供多个自适应比特率（ABR）流的设备和方法。 该设备接收一组用于媒体频道的内容片段，并且使用代码转换器将第一内容片段从源格式转换为第一数据格式，用于将第一内容片段转换为小于第一内容片段的第一持续时间 接收每组细分的第二次持续时间。 转换的段然后被发送到客户端设备。 在从第二数据格式的内容片段接收到来自设备的请求时，设备执行代码转换器的初始化以将内容片段从源格式转换为第二数据格式，初始化在剩余时间段内完成，或者 “操作差距”是由第一个持续时间和第二个持续时间之间的差异产生的。

公开(公告)号：US20140359155A1

公开(公告)日：2014-12-04

申请号：US14029745

申请日：2013-09-17

申请人： Broadcom Corporation

发明人： Wade Keith WAN ,  Rajesh Shankarrao Mamidwar ,  Brian Allen Heng ,  Alexander Garland Macinnis ,  Hongtao Zhu

IPC分类号： H04L29/06

CPC分类号： H04L65/4076 ,  H04L65/605 ,  H04L65/607 ,  H04N21/222 ,  H04N21/234336 ,  H04N21/23439 ,  H04N21/4302 ,  H04N21/43615 ,  H04N21/44016 ,  H04N21/8456

摘要： Systems and methods for transmitting content using segment-based and non-segment-based streams are provided. In some aspects, a method includes identifying at least one segment-based stream of content. Each segment-based stream is associated with a respective first bit rate and includes one or more segments of the content. The method also includes identifying at least one non-segment-based stream of the content. Each non-segment-based stream is associated with a second bit rate and includes a continuous stream of the content. The method also includes enabling switching between use of i) the at least one segment-based stream and ii) the at least one non-segment-based stream to continuously transmit the content to one or more client devices.

摘要翻译： 提供了使用基于段和非段的流来发送内容的系统和方法。 在一些方面，一种方法包括识别至少一个基于片段的内容流。 每个基于段的流与相应的第一比特率相关联并且包括内容的一个或多个段。 该方法还包括识别内容的至少一个基于非段的流。 每个非基于段的流与第二比特率相关联，并且包括内容的连续流。 该方法还包括在使用i）至少一个基于段的流和ii）至少一个非基于段的流之间进行切换，以将内容连续发送到一个或多个客户端设备。

公开(公告)号：US20140337903A1

公开(公告)日：2014-11-13

申请号：US13958477

申请日：2013-08-02

申请人： BROADCOM CORPORATION

发明人： Hongtao Zhu ,  Alexander Garland Macinnis

IPC分类号： H04N21/235 ,  H04N21/6587 ,  H04N19/40

CPC分类号： H04N21/6587 ,  H04N19/40 ,  H04N21/2187 ,  H04N21/234336 ,  H04N21/23439 ,  H04N21/2387 ,  H04N21/242 ,  H04N21/8456 ,  H04N21/85406

摘要： A method for performing trick-mode operations with decreased latency for transcode streaming includes receiving and recording a stream of video data. A single transcoder may transcode the stream of video data and generate output video data in an output buffer following. Segmentation index information may be generated that refers to the output data in the output buffer. Skip-backwards, skip-ahead, and resume requests received from a client device are responded by retrieving transcoded video data from the output buffer or retrieving and transcoding video data from an input storage. A method for performing skip-ahead trick-mode operation with decreased latency may use two transcoders such as two threads of the single transcoder to transcode temporally current content and forward content. The forward content may be associated with a forward time offset with respect to the temporally current content. The transcoded forward content is provided in response to skip-ahead trick mode request.

摘要翻译： 用于以降低的代码转换流程执行特技模式操作的方法包括接收和记录视频数据流。 单个代码转换器可对视频数据流进行代码转换，并在输出缓冲器之后生成输出视频数据。 可以生成指向输出缓冲器中的输出数据的分段索引信息。 通过从输出缓冲器检索经转码的视频数据或从输入存储器检索和代码转换视频数据来响应从客户端设备接收到的向后，向前，跳过和恢复请求。 用于以降低的延迟执行跳过特技模式操作的方法可以使用诸如单个代码转换器的两个线程的两个代码转码器对时间上当前的内容进行转码并转发内容。 前向内容可以与相对于时间上的当前内容的前向时间偏移相关联。 响应于跳过提示特技模式请求提供经转码的前向内容。