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51. 发明授权

US10873781B2 Video fragment file processing 有权
公开(公告)号：US10873781B2
公开(公告)日：2020-12-22
申请号：US15621192
申请日：2017-06-13
申请人： Comcast Cable Communications, LLC
发明人： Kevin L. Pikus , Ryan McMurray , Yasser F. Syed
IPC分类号： H04N21/234 , H04N21/4402 , H04N21/61 , H04N21/2343 , H04N21/845 , H04N21/24 , H04N21/258 , H04N21/2662 , H04N21/2312
CPC分类号： H04N21/4402 , H04N21/2312 , H04N21/2343 , H04N21/23418 , H04N21/23439 , H04N21/234309 , H04N21/234363 , H04N21/234381 , H04N21/2402 , H04N21/25825 , H04N21/2662 , H04N21/6175 , H04N21/8456
摘要： Methods and systems for packaging, transcoding, and fragmenting files (e.g., video content are described. Video content may be transcoded into fix size, variable duration fragments files that satisfy a target fragment file size. Those fragment files may be received, decoded to recover original frames of the underlying video, and then repackaged as new fragment files that are grouped based on overall file size. As a result, the new fragments may have different playback durations, but their overall file sizes may be the same and/or within a target fragment file size (TFS).

52. 发明授权

US10735719B2 Selecting content transmissions based on encoding parameters 有权
公开(公告)号：US10735719B2
公开(公告)日：2020-08-04
申请号：US14285131
申请日：2014-05-22
申请人： Comcast Cable Communications, LLC
发明人： Yasser F. Syed , Donald J. Wester
IPC分类号： H04N19/115 , H04N19/196 , H04N19/127 , H04L29/06 , H04N19/14 , H04N19/436 , H04N19/46 , H04N21/2343 , H04N21/2365
摘要： An example method can comprise receiving an encoding parameter associated with a first content transmission. The encoding parameter can indicate a level of complexity to encode the first content transmission. The method can comprise selecting, based on the encoding parameter, a second content transmission. The second content transmission can be encoded at a second bit rate that is different than a first bit rate of the first content transmission. The method can also comprise generating a third content transmission. The third content transmission can comprise the second content transmission.

53. 发明授权

US10708599B2 Preserving image quality in temporally compressed video streams 有权
公开(公告)号：US10708599B2
公开(公告)日：2020-07-07
申请号：US15925261
申请日：2018-03-19
申请人： Comcast Cable Communications, LLC
发明人： Yasser F. Syed
IPC分类号： H04N19/159 , H04N19/154 , H04N19/167 , H04N19/40
摘要： When a temporally compressed video stream is decoded and subsequently re-encoded, quality is typically lost. The quality loss may be mitigated using information about how the source video stream was encoded during the re-encoding process. According to some aspects of the disclosure, this mitigation of quality loss can be facilitated by decoders that output such information and encoders that receive such information. These decoders and encoders may be separate devices. The functionality of these decoders and encoders may also be combined in a single device, such as a transcoding device. An example of the information that may be used during re-encoding is whether each portion of the original stream was intra-coded or non-intra-coded.

54. 发明授权

US10567813B2 System and method for data stream fragmentation 有权
公开(公告)号：US10567813B2
公开(公告)日：2020-02-18
申请号：US15812796
申请日：2017-11-14
申请人： COMCAST CABLE COMMUNICATIONS, LLC
发明人： Yasser F. Syed , Paul D. Egenhofer
IPC分类号： H04N21/2343 , H04N21/845 , H04L29/06
摘要： A method of data conditioning is disclosed that in one aspect includes receiving a data stream and encoding into the data stream information representing a boundary of a content fragment, wherein the boundary is independent of a group of pictures structure of the data stream.

55. 发明申请

US20190261003A1 Preserving Image Quality in Temporally Compressed Video Streams 审中-公开
公开(公告)号：US20190261003A1
公开(公告)日：2019-08-22
申请号：US16193564
申请日：2018-11-16
申请人： Comcast Cable Communications, LLC
发明人： Yasser F. Syed
IPC分类号： H04N19/159 , H04N19/167 , H04N19/40 , H04N19/154
摘要： When a temporally compressed video stream is decoded and subsequently re-encoded, quality is typically lost. The quality loss may be mitigated using information about how the source video stream was encoded during the re-encoding process. According to some aspects of the disclosure, this mitigation of quality loss can be facilitated by decoders that output such information and encoders that receive such information. These decoders and encoders may be separate devices. The functionality of these decoders and encoders may also be combined in a single device, such as a transcoding device. An example of the information that may be used during re-encoding is whether each portion of the original stream was intra-coded or non-intra-coded.

56. 发明授权

US10284908B2 Providing multiple data transmissions 有权
公开(公告)号：US10284908B2
公开(公告)日：2019-05-07
申请号：US13777830
申请日：2013-02-26
申请人： Comcast Cable Communications, LLC
发明人： Yasser F. Syed
IPC分类号： H04N21/4402 , H04N21/2343
摘要： Methods and systems related to processing multiple data transmissions are disclosed. For example, a computing device may receive a data stream corresponding to a content item, and generate additional data streams by sampling the data stream, for example, using different sampling regions. Another data stream at a higher resolution than each of the additional data streams may then be generated by combining elements (e.g., pixels) of the additional data streams.

57. 发明申请

US20170048527A1 PRESERVING IMAGE QUALITY IN TEMPORALLY COMPRESSED VIDEO STREAMS 有权
标题翻译：保存在压缩视频流中的图像质量
公开(公告)号：US20170048527A1
公开(公告)日：2017-02-16
申请号：US15091167
申请日：2016-04-05
申请人： Comcast Cable Communications, LLC
发明人： Yasser F. Syed
IPC分类号： H04N19/159 , H04N19/167 , H04N19/154 , H04N19/40
CPC分类号： H04N19/159 , H04N19/154 , H04N19/167 , H04N19/40
摘要： When a temporally compressed video stream is decoded and subsequently re-encoded, quality is typically lost. The quality loss may be mitigated using information about how the source video stream was encoded during the re-encoding process. According to some aspects of the disclosure, this mitigation of quality loss can be facilitated by decoders that output such information and encoders that receive such information. These decoders and encoders may be separate devices. The functionality of these decoders and encoders may also be combined in a single device, such as a transcoding device. An example of the information that may be used during re-encoding is whether each portion of the original stream was intra-coded or non-intra-coded.
摘要翻译：当对时间压缩的视频流进行解码并随后重新编码时，通常会丢失质量。可以使用关于在重新编码过程中如何对源视频流进行编码的信息来减轻质量损失。根据本公开的一些方面，可以通过输出这样的信息的解码器和接收这种信息的编码器来促进质量损失的减轻。这些解码器和编码器可以是分离的装置。这些解码器和编码器的功能也可以组合在诸如转码设备的单个设备中。在重新编码期间可以使用的信息的示例是原始流的每个部分是帧内编码还是非帧内编码。

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