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1. 发明申请

WO2013072080A1 MEDIA STREAMING IN MOBILE NETWORKS WITH IMPROVED EFFICIENCY 审中-公开
标题翻译：媒体在移动网络中的流动性提高
公开(公告)号：WO2013072080A1
公开(公告)日：2013-05-23
申请号：PCT/EP2012/063119
申请日：2012-07-05
申请人： Telefonaktiebolaget L M Ericsson (publ) , WILLARS, Per , FRÖJDH, Per , KARLSEN, Johnny , LOHMAR, Thorsten
发明人： WILLARS, Per , FRÖJDH, Per , KARLSEN, Johnny , LOHMAR, Thorsten
IPC分类号： H04L29/06 , H04W52/02 , H04L29/08
CPC分类号： H04L65/4069 , H04L65/1059 , H04L65/4076 , H04L65/4084 , H04L65/602 , H04L65/80 , H04L67/2823 , H04N21/234 , H04N21/2402 , H04N21/26258 , H04N21/26266 , H04N21/41407 , H04N21/44004 , H04N21/44209 , H04N21/4436 , H04N21/6125 , H04N21/6373 , H04N21/6543 , H04N21/8456
摘要： The invention relates to a mobile telecommunication device (22) comprising: - a receiver (40) for receiving content data via a mobile telecommunication network; - a play-out buffer (41) for holding downloaded but yet un-played content data; - a media reader (42) for reading content data at a media rate from the play-out buffer and for sending content to a display or speaker for rendering; - a segment request controller (46) for sending media segment requests to a remote server; - a buffer fill monitor (45) for checking a fill level of the play-out buffer, continuously or at least at the end of a media segment download. The segment request controller (46) is configured switch between a state of continuously requesting media segments and a state of not requesting any media segments. This switching is depending on the fill level. By restricting the download of segments, more and longer idle period are created which increases the chance that the radio state is switched down, so as to save battery and resources.
摘要翻译：本发明涉及一种移动电信设备（22），包括： - 经由移动电信网络接收内容数据的接收机（40）; - 用于保存下载但未播放的内容数据的播放缓冲器（41）; - 媒体读取器（42），用于从播放缓冲器以媒体速率读取内容数据，并将内容发送到显示器或扬声器进行渲染; - 用于向远程服务器发送媒体分段请求的分段请求控制器（46）; - 缓冲器填充监视器（45），用于连续地或至少在媒体段下载结束时检查播放缓冲器的填充级别。片段请求控制器（46）被配置为在连续请求媒体片段的状态和不请求任何媒体片段的状态之间切换。此切换取决于填充水平。通过限制片段的下载，产生了越来越多的空闲时间，增加了无线电状态关闭的机会，从而节省了电池和资源。

2. 发明申请

WO2011102792A1 METHOD AND ARRANGEMENT FOR ADAPTION IN HTTP STREAMING 审中-公开
标题翻译： HTTP流中自适应的方法和布置
公开(公告)号：WO2011102792A1
公开(公告)日：2011-08-25
申请号：PCT/SE2011/050167
申请日：2011-02-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
发明人： EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
IPC分类号： H04L29/06
CPC分类号： H04L65/60 , H04L65/4084 , H04L65/607 , H04L65/80 , H04L67/02 , H04L67/42
摘要： A method of controlling adaptive HTTP streaming of media content between a HTTP server and a HTTP client in a communication system, in which system media content is arranged as a plurality of periods, and each such period comprises a plurality of representations of media segments, which method includes the steps of providing (S10) temporal alignment information for the media segments of the plurality of representations, which temporal alignment information provides indications about a temporal relation between the segments of the plurality of representations of the media content. Further, the method includes providing (S20) key frame location information for the media segments, which key frame location information provides indications about locations of key frames in the media segments of the plurality of representations. Finally, controlling (S30) adaptation of the HTTP streaming of the media content based on at least one of the provided temporal alignment information and the provided key frame location information.
摘要翻译：一种在通信系统中的HTTP服务器和HTTP客户端之间控制媒体内容的自适应HTTP流的方法，其中系统媒体内容被布置为多个周期，并且每个这样的周期包括媒体段的多个表示，其中方法包括以下步骤：提供（S10）多个表示中的媒体片段的时间对准信息，该时间对准信息提供关于媒体内容的多个表示的片段之间的时间关系的指示。此外，该方法包括提供（S20）媒体片段的关键帧位置信息，该关键帧位置信息提供关于多个表示的媒体片段中的关键帧的位置的指示。最后，基于所提供的时间对准信息和所提供的关键帧位置信息中的至少一个来控制（S30）媒体内容的HTTP流的适配。

3. 发明申请

WO2012057665A1 A FACE DATA ACQUIRER, END USER VIDEO CONFERENCE DEVICE, SERVER, METHOD, COMPUTER PROGRAM AND COMPUTER PROGRAM PRODUCT FOR EXTRACTING FACE DATA 审中-公开
标题翻译：面部数据采集器，终端用户视频会议设备，服务器，方法，计算机程序和计算机程序产品，用于提取面部数据
公开(公告)号：WO2012057665A1
公开(公告)日：2012-05-03
申请号：PCT/SE2010/051174
申请日：2010-10-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , FRÖJDH, Per , STRÖM, Jacob
发明人： FRÖJDH, Per , STRÖM, Jacob
IPC分类号： G06K9/00 , G06F17/30
CPC分类号： G06K9/00268 , G06F17/30793 , G06K9/00926 , G06K9/6255 , H04N7/147 , H04N7/15
摘要： It is presented a face data acquirer comprising: an image capture module arranged to capture an image from a video stream of a video conference; a face detection module arranged to determine a subset of the image, the subset representing a face; an identity acquisition module arranged to acquire an identity of a video conference participant coupled to the face represented by the subset of the image; and a face extraction module arranged to extract face data from the subset of the image and to determine whether to store the extracted face data for subsequent face recognition. A corresponding end user video conference device, server, method, computer program and computer program product are also provided.
摘要翻译：提供一种面部数据获取器，包括：图像捕获模块，被布置成从视频会议的视频流捕获图像; 面部检测模块被布置为确定图像的子集，所述子集表示脸部; 身份获取模块，被配置为获取耦合到由所述图像的子集表示的面部的视频会议参与者的身份; 以及面部提取模块，其被布置成从所述图像的子集中提取面部数据，并且确定是否存储所提取的面部数据以供随后的面部识别。还提供了相应的终端用户视频会议设备，服务器，方法，计算机程序和计算机程序产品。

4. 发明申请

WO2011102791A1 METHOD AND ARRANGEMENT FOR REPRESENTATION SWITCHING IN HTTP STREAMING 审中-公开
标题翻译： HTTP流中代表切换的方法和布置
公开(公告)号：WO2011102791A1
公开(公告)日：2011-08-25
申请号：PCT/SE2011/050166
申请日：2011-02-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
发明人： EINARSSON, Torbjörn , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
IPC分类号： H04L29/06
CPC分类号： H04L65/602 , H04L47/2416 , H04L65/4084 , H04L65/80 , H04L67/02 , H04N21/2662
摘要： In a method of enabling representation switching during HTTP streaming sessions in a communication system, arranging (S10) available representations into groups, providing (S20) information identifying the groups and their respective representations, and switching (S30) representation based on the provided group identify information.
摘要翻译：在使通信系统中的HTTP流传输会话期间进行表示切换的方法中，将（S10）可用表示排列成组，提供（S20）标识组及其各自表示的信息，以及基于所提供的组标识的切换（S30）表示信息。

5. 发明申请

WO2009088353A1 SYSTEMS AND METHODS FOR USING DC CHANGE PARAMETERS IN VIDEO CODING AND DECODING 审中-公开
标题翻译：在视频编码和解码中使用直流变化参数的系统和方法
公开(公告)号：WO2009088353A1
公开(公告)日：2009-07-16
申请号：PCT/SE2009/050005
申请日：2009-01-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ANDERSSON, Kenneth , FRÖJDH, Per , SJÖBERG, Rickard , PRIDDLE, Clinton , SAMUELSSON, Jonatan
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , SJÖBERG, Rickard , PRIDDLE, Clinton , SAMUELSSON, Jonatan
IPC分类号： H04N7/50 , H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： The present application discloses systems and methods for using DC change parameters in video coding. In one embodiment, the method includes the steps of: (a) obtaining a DC change parameter; (b) decoding encoded video data to obtain reconstructed pixel values; and (c) using the reconstructed pixel values, a filter, and the DC change parameter to obtain filtered reconstructed pixel values with a DC change.
摘要翻译：本申请公开了在视频编码中使用DC变化参数的系统和方法。在一个实施例中，该方法包括以下步骤：（a）获得DC变化参数; （b）解码编码的视频数据以获得重建的像素值; 以及（c）使用重建的像素值，滤波器和DC变化参数来获得具有DC变化的经滤波的重构像素值。

6. 发明申请

WO2013002709A1 INDICATING BIT STREAM SUBSETS 审中-公开
标题翻译：指示位流条款
公开(公告)号：WO2013002709A1
公开(公告)日：2013-01-03
申请号：PCT/SE2012/050685
申请日：2012-06-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , RUSERT, Thomas , WU, Zhuangfei , FRÖJDH, Per
发明人： RUSERT, Thomas , WU, Zhuangfei , FRÖJDH, Per
IPC分类号： H04N7/26 , H04N21/845
CPC分类号： H04N19/00903 , H04N19/33 , H04N19/597 , H04N19/70 , H04N19/85 , H04N21/8451
摘要： A method of indicating bit stream subsets in a compressed video bit stream is provided. The method comprises receiving the bit stream, dividing the bit stream into packets, wherein each packet comprises either one of video data or supplemental information, marking each packet (310–312, 320–322) with a first subset identifier (s0, s1) which is associated with a corresponding bit stream subset, and providing a first sequence parameter set (SPS) (310), marked with the same first subset identifier as its associated bit stream subset. The first SPS further comprises a second subset identifier (b1) indicating a decoding dependency (304) of the bit stream subset associated with the first subset identifier on a bit stream subset associated with the second subset identifier. Further, a method of extracting video packets from a video bit stream is provided. The method comprises receiving packets from the bit stream, extracting a first SPS (310), which is marked with the first subset identifier (s0) and further comprising the second subset identifier (b1), using the first and the second subset identifier as relevant subset identifiers, and, for each received packet (310–312, 320– 322), inspecting the first subset identifier (s0, s1) of the packet, and extracting, under the condition that the extracted first subset identifier matches one of the relevant subset identifiers, the packet from the bit stream.
摘要翻译：提供了一种在压缩视频比特流中指示比特流子集的方法。该方法包括接收比特流，将比特流分成分组，其中每个分组包括视频数据或补充信息中的任一个，用第一子集标识符（s0，s1）标记每个分组（310-312,320-322）其与相应的比特流子集相关联，并且提供用与其相关联的比特流子集相同的第一子集标识符标记的第一序列参数集（SPS）（310）。第一SPS还包括指示与第二子集标识符相关联的比特流子集与第一子集标识符相关联的比特流子集的解码依赖性（304）的第二子集标识符（b1）。此外，提供从视频比特流中提取视频分组的方法。该方法包括从比特流接收分组，提取用第一子集标识符（s0）标记并且还包括第二子集标识符（b1）的第一SPS（310），使用第一和第二子集标识符作为相关子集标识符，并且对于每个接收到的分组（310-312,320-322），检查分组的第一子集标识符（s0，s1），并且在提取的第一子集标识符匹配相关子集标识符，来自位流的数据包。

7. 发明申请

WO2012047158A1 A CLIENT, A CONTENT CREATOR ENTITY AND METHODS THEREOF FOR MEDIA STREAMING 审中-公开
标题翻译：客户，内容创作者实体及其媒体流程的方法
公开(公告)号：WO2012047158A1
公开(公告)日：2012-04-12
申请号：PCT/SE2011/051176
申请日：2011-10-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , FRÖJDH, Per , EINARSSON, Torbjörn
发明人： FRÖJDH, Per , EINARSSON, Torbjörn
IPC分类号： H04N21/845 , H04N21/2387 , H04N21/2343 , H04N21/4402 , H04N21/6587
CPC分类号： H04L65/604 , H04L65/607 , H04L65/608 , H04L67/02 , H04N19/30 , H04N19/31 , H04N19/44 , H04N19/503 , H04N21/23439 , H04N21/2387 , H04N21/435 , H04N21/44008 , H04N21/440281 , H04N21/6125 , H04N21/6587 , H04N21/8455 , H04N21/8456
摘要： The embodiments of the present invention relate to methods and arrangements for accomplishing trick modes. This is achieved by assigning samples within a track to sample groups, wherein all samples within a sample group belong to one temporal level and by allowing the client to access one temporal level independently of lower temporal levels. In this way, the flexibility for the client regarding play out of different frame rates is increased which can result in a lower bandwidth utilization.
摘要翻译：本发明的实施例涉及用于完成特技模式的方法和装置。这通过将轨迹内的样本分配给采样组来实现，其中样本组内的所有采样属于一个时间级别，并且允许客户端独立于较低时间级别访问一个时间级别。以这种方式，客户端对于播放不同帧速率的灵活性增加，这可能导致较低的带宽利用率。

8. 发明申请

WO2011056139A1 FILE FORMAT FOR SYNCHRONIZED MEDIA 审中-公开
标题翻译：用于同步媒体的文件格式
公开(公告)号：WO2011056139A1
公开(公告)日：2011-05-12
申请号：PCT/SE2010/051209
申请日：2010-11-05
申请人： Telefonaktiebolaget L M Ericsson (publ). , FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
发明人： FRÖJDH, Per , PRIDDLE, Clinton , WU, Zhuangfei
IPC分类号： H04N7/24
CPC分类号： G11B20/14 , H04N5/04 , H04N21/234318 , H04N21/4307 , H04N21/6547 , H04N21/84 , H04N21/8456 , H04N21/85406 , H04N21/8547
摘要： Metadata defining decoding and rendering instructions for media content to be co-rendered in a media presentation is divided and distributed as track fragments (15, 16) provided in different media container files (11). Track fragment adjustment information (20) is included in at least one such track fragment (15) in order to define rendering timing relationships between media content portions defined by the track fragments (15, 16) in a current media container file (11). The rendering timing relationships enable a correct time alignment of the playback of the media content to be co-rendered to achieve a synchronized media presentation. The track fragment adjustment information (20) is particularly advantageous in connection with tuning in or a random access in a stream of media container files (1, 11) comprising fragmented metadata.
摘要翻译：为在媒体呈现中共同呈现的媒体内容定义解码和呈现指令的元数据被分割并分配为设置在不同媒体容器文件（11）中的轨道片段（15,16）。轨道片段调整信息（20）被包括在至少一个这样的轨道片段（15）中，以便定义由当前媒体容器文件（11）中的轨道片段（15,16）定义的媒体内容部分之间的呈现时间关系。渲染定时关系使得能够共同呈现媒体内容的回放的正确时间对准以实现同步的媒体呈现。轨道片段调整信息（20）在包括分段元数据的媒体容器文件（1,11）流中的调谐或随机存取中是特别有利的。

9. 发明申请

WO2009080132A1 IMPROVED PIXEL PREDICTION FOR VIDEO CODING 审中-公开
标题翻译：改进的像素预测用于视频编码
公开(公告)号：WO2009080132A1
公开(公告)日：2009-07-02
申请号：PCT/EP2008/005895
申请日：2008-07-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
IPC分类号： H04N7/26 , H04N7/34 , H04N7/36
CPC分类号： H04N19/593 , H04N19/103 , H04N19/117 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/194 , H04N19/523 , H04N19/82
摘要： Method of encoding an input video frame into an encoded video frame. The method comprises the steps of disassembling the input video frame into a plurality of blocks of pixels; and for each block being a current block, generating a corresponding predicted block from already reconstructed pixels, generating a residual block by subtracting the predicted block from the current block, and generating a reconstructed block from the residual block and the predicted block, generating the encoded video frame from the residual block, creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block, wherein the aligned predicted block is used in the steps of generating the residual block and generating the corresponding reconstructed block. A corresponding method for decoding the encoded video frame into a decoded video frame also uses a step of creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block.
摘要翻译：将输入视频帧编码成编码视频帧的方法。该方法包括将输入视频帧分解为多个像素块的步骤; 并且对于每个块是当前块，从已经重建的像素生成对应的预测块，通过从当前块中减去预测块产生残差块，并从残差块和预测块生成重构块，视频帧，在所述预测块的区域中创建重建像素的局部结构，并将所述预测块与所述局部结构对准以产生对准的预测块，其中所述对准预测块用于生成剩余块并生成相应的重建块。用于将编码视频帧解码为解码视频帧的相应方法还使用在预测块的区域中创建重建像素的局部结构并将预测块与局部结构对准以产生对准预测块的步骤。

10. 发明申请

WO2013025157A2 AUXILIARY INFORMATION MAP UPSAMPLING 审中-公开
标题翻译：辅助信息图UPSAMPLING
公开(公告)号：WO2013025157A2
公开(公告)日：2013-02-21
申请号：PCT/SE2012/050746
申请日：2012-06-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , GIRDZIJAUSKAS, Ivana , FRÖJDH, Per , RUSERT, Thomas
发明人： GIRDZIJAUSKAS, Ivana , FRÖJDH, Per , RUSERT, Thomas
IPC分类号： H04N13/00
CPC分类号： H04N13/128 , H04N13/122 , H04N19/46 , H04N19/51 , H04N19/597 , H04N2213/003
摘要： An auxiliary information map (10) is upsampled to form an upsampled auxiliary information map (20). Multiple reference pixels (23) in the upsampled auxiliary information map (20) are selected for a current pixel (21) in the upsampled auxiliary information map (20) based on texel values of texels in an associated texture (30). An updated pixel value is calculated for the current pixel (21) based on the pixel values of the selected reference pixels (23).
摘要翻译：对辅助信息图（10）进行上采样以形成上采样辅助信息图（20）。基于关联纹理（30）中的纹元的纹素值，选择上采样辅助信息图（20）中的上采样辅助信息图（20）中的多个参考像素（23）用于上采样辅助信息图（20）中的当前像素（21）。基于所选择的参考像素（23）的像素值为当前像素（21）计算更新的像素值。

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