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公开(公告)号：US10764620B2
公开(公告)日：2020-09-01
申请号：US16543562
申请日：2019-08-18
申请人： Biamp Systems, LLC
IPC分类号： H04N21/242 , H04N5/21 , H04N9/475 , H04L12/815 , H04J3/06 , H04N7/54 , H04N21/24 , H04N21/43 , H04N21/6437 , H04N21/2368
摘要： Systems and methods of the present disclosure provide for dynamic delay equalization of related media signals in a media transport system. Methods include receiving a plurality of related media signals, transporting the related media signals along different media paths, calculating uncorrected propagation delays for the media paths, and delaying each of the related media signals by an amount related to the difference between the longest propagation delay (of the uncorrected propagation delays) and the uncorrected propagation delay of the related media signal/media path. Calculating the uncorrected propagation delays and delaying the related media signals may be performed in response to a change to the propagation delay of at least one of the related media signals/media paths. Additionally or alternatively, calculating the uncorrected propagation delays and delaying the related media signals may be performed while transporting the related media signals.
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公开(公告)号：US09838571B2
公开(公告)日：2017-12-05
申请号：US15094981
申请日：2016-04-08
发明人： Charles S. Meyer
IPC分类号： H04N9/475 , H04N5/04 , H04N21/242 , H04J3/06 , H04L7/033
CPC分类号： H04N5/04 , H04J3/0667 , H04L7/033 , H04N21/242
摘要： The present aspects relate to techniques of timing synchronization of audio and video (AV) data in a network. In particular, the techniques for a AV master to distribute AV data encoded with one or more time markers to a plurality of processing nodes. The one or more time markers may be indexed to a precision time protocol (PTP) time stamp used as a time reference. In one technique, the nodes extract the time markers to determine an offset value that is applied to a PLL to synchronize AV data packets at a distribution node or a processing node. In another technique the distribution node or the processing node determines the worst case path, which corresponds to a system offset value. The distribution node then reports the system offset value to the AV master, which in turn adjusts the phase based on the report.
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公开(公告)号：US09794451B2
公开(公告)日：2017-10-17
申请号：US15173743
申请日：2016-06-06
发明人： Po-Chin Chen
IPC分类号： H04N9/475 , H04N5/05 , H04N21/43 , H04N7/025 , H04N21/426 , H04N21/2368 , H04N21/242 , H04N21/4363 , H04N21/443
CPC分类号： H04N5/05 , H04N7/025 , H04N21/2368 , H04N21/242 , H04N21/42684 , H04N21/4307 , H04N21/43635 , H04N21/4432
摘要： A method in control equipment for synchronizing audio and video acquires an identifier of playback equipment. Information as to audio and video formats for the playback equipment is acquired playback and a first time delay data corresponding to the audio data and video data from the cloud server is set according to the identifier, the audio format information and the video format information. A first delay time between the audio data and video data according to the first time delay data acquired from the cloud server is set for the implementation of audio and video synchronization.
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公开(公告)号：US09516078B2
公开(公告)日：2016-12-06
申请号：US13661330
申请日：2012-10-26
IPC分类号： H04N7/14 , H04J3/24 , H04N9/475 , H04L29/06 , H04N21/472 , H04N21/6587 , H04N21/845
CPC分类号： H04L65/4084 , H04L65/605 , H04L65/607 , H04N21/47217 , H04N21/6587 , H04N21/8456
摘要： A method is provided in one example embodiment and includes receiving analytics information for a video file at a transcoder, the analytics information includes a plurality of points of interest. The method also includes determining a plurality of durations associated with a plurality of chunks of video data associated with the video file, the determining includes identifying a minimal distance between certain times associated with the plurality of points of interest and keyframe times. The method also includes transcoding the video file using the plurality of durations. The video file can be received from an analytics extractor that is to generate the plurality of points of interest.
摘要翻译： 在一个示例实施例中提供了一种方法，并且包括在代码转换器处接收视频文件的分析信息，分析信息包括多个感兴趣的点。 所述方法还包括确定与视频文件相关联的多个视频数据块相关联的多个持续时间，所述确定包括识别与所述多个兴趣点和关键帧时间相关联的特定时间之间的最小距离。 该方法还包括使用多个持续时间对视频文件进行代码转换。 视频文件可以从要生成多个兴趣点的分析提取器接收。
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公开(公告)号：US09357192B2
公开(公告)日：2016-05-31
申请号：US14595482
申请日：2015-01-13
发明人： Takashi Minemura , Nobuaki Suzuki , Takashi Doi , Hideki Miyasato
IPC分类号： H04N7/00 , H04N17/00 , H04N17/02 , H04N9/47 , H04N9/475 , G06F3/00 , G06F13/00 , H04N9/64 , H04N1/00 , G09G5/00 , H04N21/4363 , H04N21/4402 , H04N21/462 , H04N21/432 , H04N21/485 , H04N5/04 , G09G5/36
CPC分类号： H04N21/4621 , G09G5/003 , G09G5/006 , G09G5/36 , G09G2320/0613 , G09G2320/08 , G09G2340/0407 , G09G2340/0428 , G09G2340/0435 , G09G2350/00 , G09G2370/045 , G09G2370/06 , G09G2370/12 , H04N1/00095 , H04N1/00114 , H04N5/04 , H04N5/38 , H04N5/44 , H04N9/64 , H04N21/4325 , H04N21/43635 , H04N21/440263 , H04N21/440272 , H04N21/440281 , H04N21/4755 , H04N21/485 , H04N21/4854
摘要： According to one embodiment, a video sender comprises: a video processor and a communication module. The video processor creates video. The communication module is configured to communicate with a video receiver. The communication module comprises: a receiver and a transmitter. The receiver receives, from the video receiver, specific information specifying which one of a color signal and a frame rate takes precedence over the other one in transmission. The transmitter converts the video created by the video processor into video in which one of the color signal and the frame rate takes precedence over the other one in accordance with the specific information, and transmit the video thus converted to the video receiver.
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公开(公告)号：US09253372B2
公开(公告)日：2016-02-02
申请号：US14326687
申请日：2014-07-09
申请人： LG ELECTRONICS INC.
发明人： Sanghyun Kim , Jongyeul Suh , Kawansuk Kim , Joonhui Lee , Jaehee Chung , Hyeonjae Lee , Jinpil Kim , Dongwan Seo , Kyoungsoo Moon , Aettie Ji , Youngjae Seo , Kyungho Kim , Sungok Park
IPC分类号： H04N9/74 , H04N9/475 , G06F3/00 , G06F13/00 , H04N5/445 , H04N7/167 , G06F7/04 , H04N5/04 , H04N21/431 , H04N21/462 , H04N21/2362 , H04N21/442 , H04L12/18
CPC分类号： H04N21/242 , G06F3/04817 , G06F3/0482 , G06F3/04842 , G06F17/30023 , G06F17/30864 , H04L12/1813 , H04N5/04 , H04N21/2362 , H04N21/4316 , H04N21/437 , H04N21/44209 , H04N21/462 , H04N21/4622 , H04N21/4725 , H04N21/8166
摘要： Provided are a video display device and a method of controlling the same. The method includes: obtaining an uncompressed audio-visual (AV) content; playing the uncompressed AV content through the display unit; obtaining content information of the uncompressed AV content on the basis of a content section of the uncompressed AV content; obtaining content change time information and enhanced service information on the basis of the content information; and determining a delay time for obtaining the next content information on the basis of the content change time information.
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公开(公告)号：US09232204B2
公开(公告)日：2016-01-05
申请号：US14391621
申请日：2013-05-16
发明人： Jun Yin , Xingming Zhang , Liquan Fu , Jiangming Zhu , Jun Wu , Jian Wu
摘要： Provided in embodiments of the present invention are a method and device for transmitting a high-definition video signal, comprising: isolating from the high-definition video signal a brightness signal and a chrominance signal, and, by using an analog signal transmission mode, using non-overlapping frequency hands to transmit respectively the brightness signal and the chrominance signal. The solution of the present invention employs the analog signal transmission method, utilizes independent frequency bands to transmit respectively the brightness signal and the chrominance signal, and ensures that the brightness signal and the chrominance signal do not affect each other, thus ensuring video quality and timeliness of the high-definition video signal when transmitted over a long distance.
摘要翻译： 在本发明的实施例中提供了一种用于发送高分辨率视频信号的方法和装置，包括：将高清晰度视频信号与亮度信号和色度信号隔离，并且通过使用模拟信号传输模式，使用 非重叠频率手分别发送亮度信号和色度信号。 本发明的解决方案采用模拟信号传输方式，利用独立频带分别发送亮度信号和色度信号，确保亮度信号和色度信号不会相互影响，从而确保视频质量和及时性 的高清晰度视频信号。
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公开(公告)号：US09025081B2
公开(公告)日：2015-05-05
申请号：US11741117
申请日：2007-04-27
申请人： Robert Campbell
发明人： Robert Campbell
CPC分类号： H04N5/04
摘要： A system comprises logic adapted to concurrently provide an electrical signal to each of a plurality of audio channels. An acoustic sensor is coupled to the logic. The acoustic sensor receives sound signals generated based on the electrical signals. The logic further determines a time lag between the received sound signals.
摘要翻译： 系统包括适于同时向多个音频通道中的每一个提供电信号的逻辑。 声传感器耦合到逻辑。 声传感器接收基于电信号产生的声音信号。 该逻辑进一步确定所接收的声音信号之间的时滞。
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公开(公告)号：US08917355B1
公开(公告)日：2014-12-23
申请号：US14013723
申请日：2013-08-29
申请人： Google Inc.
发明人： Vincent Mo , David Cohen , Aravind Krishnaswamy
CPC分类号： H04N5/265 , G11B27/10 , H04N21/233 , H04N21/23418 , H04N21/2665 , H04N21/41407 , H04N21/4394 , H04N21/44008 , H04N21/4622 , H04N21/47205 , H04N21/8547
摘要： A method and computing system for receiving a first video file containing a first plurality of video frames. A second video file containing a second plurality of video frames is received. The video files are processed to identify at least one non-graphical temporal alignment object included in each of the video files. The video files are temporally aligned using the at least one non-graphical temporal alignment object to produce temporally-aligned video files.
摘要翻译： 一种用于接收包含第一多个视频帧的第一视频文件的方法和计算系统。 接收包含第二多个视频帧的第二视频文件。 视频文件被处理以识别包括在每个视频文件中的至少一个非图形时间对准对象。 视频文件使用至少一个非图形时间对准对象在时间上对准以产生时间对齐的视频文件。
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公开(公告)号：US08913189B1
公开(公告)日：2014-12-16
申请号：US13790272
申请日：2013-03-08
CPC分类号： H04N5/04 , H04N21/4307 , H04N21/4394 , H04N21/44008
摘要： Audio data and video data are processed to determine one or more audible events and visual events, respectively. Contemporaneous presentation of the video data with audio data may be synchronized based at least in part on the audible events and the visual events. Audio processing functions, such as filtering, may be initiated for audio data based at least in part on the visual events.
摘要翻译： 处理音频数据和视频数据以分别确定一个或多个可听事件和视觉事件。 可以至少部分地基于可听事件和视觉事件来同步具有音频数据的视频数据。 可以至少部分地基于视觉事件来为音频数据启动诸如滤波的音频处理功能。
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