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公开(公告)号：US09800883B2
公开(公告)日：2017-10-24
申请号：US15091777
申请日：2016-04-06
Applicant: Google Inc.
Inventor： Krishna Gadepalli , Christophe Chaland , Rushabh Doshi , Huisheng Wang , Wendy Tobagus , Vijnan Shastri , Debargha Mukherjee
IPC: H04N19/40 , H04N19/436 , H04N19/85 , H04N19/127 , H04N19/14 , H04N19/184
CPC classification number: H04N19/436 , H04N19/127 , H04N19/14 , H04N19/184 , H04N19/40 , H04N19/85
Abstract: A system and method provides transcoding a video in parallel by multiple transcoders based on a measure of video coding complexity (VCC). The system has a video pre-processing module, a master transcoder, a transcoding controller and multiple transcoders. The video pre-processing module transcodes a source video into an intermediate video. The master transcoder partitions the intermediate video into multiple transcoding units, where a transcoding unit identifies a portion of data of the intermediate video for transcoding. The master transcoder further generates a transcoding request for each transcoding unit. The transcoding controller distributes the transcoding units to the multiple transcoders, which transcode the data of the transcoding units in parallel into transcoded data.
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公开(公告)号：US20170149958A1
公开(公告)日：2017-05-25
申请号：US14949358
申请日：2015-11-23
Applicant: Google Inc.
Inventor： Shijing Xian , Huisheng Wang , Yang Lu
CPC classification number: H04M1/72577 , G06F21/12 , G06F21/31 , G06F21/32 , G06F21/629 , G06F2221/2147 , H04M1/6058 , H04W12/02 , H04W12/06
Abstract: Embodiments help to provide a cross-device security schema for an audio device and a master device to which it is tethered (e.g., a smartphone). An example security scheme provides flexible mechanisms for locking and unlocking the audio device and the device to which it is tethered. For instance, an example security scheme may include: (a) an unlock sync feature that unlocks the audio device and keeps the audio device unlocked whenever the master device is unlocked, (b) a separate audio device unlock process that unlocks the audio device only (without unlocking the master device, and (c) an on-head detection process that, in at least some scenarios, locks the audio device in response to a determination that the audio device is not being worn.
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公开(公告)号：US09049420B1
公开(公告)日：2015-06-02
申请号：US14219877
申请日：2014-03-19
Applicant: Google Inc.
Inventor： Huisheng Wang , Xiaoquan Yi
IPC: H04N11/20 , H04N19/103 , H04N19/154 , H04N19/176 , H04N19/40
CPC classification number: H04N19/176 , H04N19/103 , H04N19/12 , H04N19/154 , H04N19/179 , H04N19/40
Abstract: A relative quality score is provided that takes into account properties of an encoded version of a source video. For example, one such quality score calculates a difference of higher and lower quality transcoded versions of the source video, and computes quality metrics for each to evaluate how similar the transcoded versions are to the source video. A relative quality score quantifying the quality improvement of the high-quality version over the low-quality version is computed. The relative quality score is adjusted based on a measurement of the quality of the source video. If the relative quality score for the video indicates a sufficient quality improvement of the high-quality version over the low-quality version, various actions are taken, such as retaining the high-quality version, and making the high-quality version available to users, e.g. via a video viewing user interface.
Abstract translation: 提供相对质量得分，其考虑了源视频的编码版本的属性。 例如，一个这样的质量得分计算源视频的较高和较低质量转码版本的差异，并且计算每个源视频的质量度量以评估代码转换版本与源视频的相似程度。 计算相对质量得分量化高质量版本与低质量版本的质量改进。 基于源视频质量的测量来调整相对质量得分。 如果视频的相对质量得分表明在低质量版本上高质量版本的质量得到充分提高，则采取各种措施，例如保留高质量版本，并将高质量版本提供给用户 ，例如 通过视频观看用户界面。
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公开(公告)号：US20160219286A1
公开(公告)日：2016-07-28
申请号：US15091777
申请日：2016-04-06
Applicant: Google Inc.
Inventor： Krishna Gadepalli , Christophe Chaland , Rushabh Doshi , Huisheng Wang , Wendy Tobagus , Vijnan Shastri , Debargha Mukherjee
IPC: H04N19/436 , H04N19/14 , H04N19/184 , H04N19/40 , H04N19/127
CPC classification number: H04N19/436 , H04N19/127 , H04N19/14 , H04N19/184 , H04N19/40 , H04N19/85
Abstract: A system and method provides transcoding a video in parallel by multiple transcoders based on a measure of video coding complexity (VCC). The system has a video pre-processing module, a master transcoder, a transcoding controller and multiple transcoders. The video pre-processing module transcodes a source video into an intermediate video. The master transcoder partitions the intermediate video into multiple transcoding units, where a transcoding unit identifies a portion of data of the intermediate video for transcoding. The master transcoder further generates a transcoding request for each transcoding unit. The transcoding controller distributes the transcoding units to the multiple transcoders, which transcode the data of the transcoding units in parallel into transcoded data
Abstract translation: 基于视频编码复杂度（VCC）的测量，系统和方法通过多个代码转换器并行地对视频进行代码转换。 该系统具有视频预处理模块，主代码转换器，代码转换控制器和多个代码转换器。 视频预处理模块将源视频转码为中间视频。 主代码转换器将中间视频分割成多个代码转换单元，其中代码转换单元识别用于代码转换的中间视频的一部分数据。 主代码转换器还为每个代码转换单元生成代码转换请求。 代码转换控制器将代码转换单元分配给多个代码转换器，其将代码转换单元的数据并行转码为代码转换数据
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