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1. 发明申请

WO2008114087A2 METHOD OF TRANSMITTING DATA IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：在通信系统中传输数据的方法
公开(公告)号：WO2008114087A2
公开(公告)日：2008-09-25
申请号：PCT/IB2007/004505
申请日：2007-12-20
申请人： SKYPE LIMITED , VAFIN, Renat , LINDBLOM, Jonas , VAALGAMAA, Markus
发明人： VAFIN, Renat , LINDBLOM, Jonas , VAALGAMAA, Markus
IPC分类号： G10L11/02 , H04J3/06
CPC分类号： G10L25/78 , G10L2025/783 , H04M1/2535
摘要： A method of receiving at a terminal a first signal transmitted via a communication network, said method comprising the steps of; receiving at the terminal the first signal comprising a plurality of data elements; analysing characteristics of the first signal; receiving from a user of the terminal a second signal to be transmitted from the terminal; analysing characteristics of the second signal to detect audio activity in the second signal; and applying a delay between receiving at the terminal and outputting from the terminal at least one of said plurality of data elements; and adjusting the delay based on the analysed characteristics of the first signal and on the detection of audio activity in the second signal.
摘要翻译：一种在终端接收经由通信网络发送的第一信号的方法，所述方法包括以下步骤：在终端处接收包括多个数据元素的第一信号; 分析第一信号的特性; 从所述终端的用户接收要从所述终端发送的第二信号; 分析第二信号的特性以检测第二信号中的音频活动; 以及在所述终端接收之间应用延迟并从所述终端输出所述多个数据元素中的至少一个; 以及基于所述第一信号的分析特性和所述第二信号中的音频活动的检测来调整所述延迟。

2. 发明申请

WO2008110870A3 SPEECH CODING SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2008110870A3
公开(公告)日：2008-09-18
申请号：PCT/IB2007/004491
申请日：2007-12-20
申请人： SKYPE LIMITED , NILSSON, Mattias , LINDBLOM, Jonas , VAFIN, Renat , ANDERSEN, Soren, Vang
发明人： NILSSON, Mattias , LINDBLOM, Jonas , VAFIN, Renat , ANDERSEN, Soren, Vang
IPC分类号： G10L19/00
摘要： A system for enhancing a signal regenerated from an encoded audio signal. The system comprises a decoder arranged to receive the encoded audio signal and produce a decoded audio signal, a feature extraction means arranged to receive at least one of the decoded and encoded audio signal and extract at least one feature from at least one of the decoded and encoded audio signal, a mapping means arranged to map the at least one feature to an enhancement signal and operable to generate and output the enhancement signal, whereby the enhancement signal has a frequency band that is within the decoded audio signal frequency band, and a mixing means arranged to receive the decoded audio signal and the enhancement signal and mix the enhancement signal with the decoded audio signal.

3. 发明申请

WO2008114084A9 METHOD OF TRANSMITTING DATA IN A COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2008114084A9
公开(公告)日：2008-09-25
申请号：PCT/IB2007/004443
申请日：2007-12-20
申请人： SKYPE LIMITED , RODBRO, Christoffer , JENSEN, Soren Skak , LINDBLOM, Jonas , VAFIN, Renat , ANDERSEN, Soren Vang
发明人： RODBRO, Christoffer , JENSEN, Soren Skak , LINDBLOM, Jonas , VAFIN, Renat , ANDERSEN, Soren Vang
IPC分类号： H04L12/64
摘要： A method of processing a signal received at a node in a network, comprising the steps of; receiving the signal at the node; determining characteristics of a first part of the signal; determining characteristics of a second part of the signal that is subsequent to the first part of the signal; quantifying an effect on the signal caused by applying an action to the first part of the signal, based on characteristics of the first part of the signal; quantifying an effect on the signal caused by not applying the action on the first part of the signal, based on characteristics of the second part of the signal; applying the action to the first part of the signal if it is determined that the effect on the signal caused by applying the action to the first part of the signal is less detrimental to at least one measure of the signal quality than the effect on the signal caused by not applying the action to the first part of the signal.

4. 发明申请

WO2008114090A2 METHOD OF TRANSMITTING DATA IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：在通信系统中传输数据的方法
公开(公告)号：WO2008114090A2
公开(公告)日：2008-09-25
申请号：PCT/IB2007/004558
申请日：2007-12-20
申请人： SKIPE LIMITED , LINDBLOM, Jonas , VAFIN, Renat
发明人： LINDBLOM, Jonas , VAFIN, Renat
IPC分类号： G10L19/22
CPC分类号： H04L1/0014 , G10L19/22 , H04L1/0086
摘要： A method of encoding a signal to be transmitted from a terminal via a channel in a communication network comprising; receiving the signal at the terminal; determining characteristics of the channel; encoding a first portion of the signal in accordance with a first encoding method to produce a first encoded signal portion; encoding a second portion of the signal in accordance with a second encoding method to produce a second encoded signal portion; wherein the first portion of the signal encoded in accordance with the first encoding method is dependent on the determined characteristics of the channel; and transmitting the first encoded signal portion and the second encoded signal portion via the channel.
摘要翻译：一种通过通信网络经由信道从终端进行编码的信号的方法，包括：在终端接收信号; 确定通道的特性; 根据第一编码方法编码信号的第一部分以产生第一编码信号部分; 根据第二编码方法编码信号的第二部分以产生第二编码信号部分; 其中根据第一编码方法编码的信号的第一部分取决于所确定的信道特性; 以及经由所述信道发送所述第一编码信号部分和所述第二编码信号部分。

5. 发明申请

WO2011101452A2 DATA COMPRESSION FOR VIDEO 审中-公开
标题翻译：数据压缩视频
公开(公告)号：WO2011101452A2
公开(公告)日：2011-08-25
申请号：PCT/EP2011/052463
申请日：2011-02-18
申请人： SKYPE LIMITED , BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren Vang
发明人： BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren Vang
IPC分类号： H04N7/26
CPC分类号： H04N19/94 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/547
摘要： The present invention provides an encoded bitstream and corresponding decoder. An encoded bit stream of compressed video data represents a plurality of successive video frames with each frame being divided into a plurality of portions and each portion corresponding to a plurality of pixels. The encoded bit stream comprises: a set of quantized transform domain coefficients representing a first one of said portions; difference data for a second one of said portions, wherein the difference data defines a difference between transform domain coefficients of the first portion and the predicted second portion, such that the second portion can be predicted from the first portion; and an address specifying the location of the first portion in terms of a whole number of said portions instead of a pixel offset.
摘要翻译：本发明提供了编码比特流和对应的解码器。压缩视频数据的编码比特流表示多个连续的视频帧，其中每个帧被分成多个部分，每个部分对应于多个像素。编码比特流包括：表示所述部分中的第一个的量化变换域系数集合; 所述差分数据定义所述第一部分的变换域系数与预测的第二部分之间的差异，使得可以从第一部分预测第二部分; 以及指定所述部分的整数的第一部分的位置而不是像素偏移的地址。

6. 发明申请

WO2011101442A3 DATA COMPRESSION FOR VIDEO 审中-公开
公开(公告)号：WO2011101442A3
公开(公告)日：2011-08-25
申请号：PCT/EP2011/052446
申请日：2011-02-18
申请人： SKYPE LIMITED , BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren, Vang
发明人： BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren, Vang
IPC分类号： H04N7/26 , H04N7/28
摘要： A method of compressing a video signal. The method comprises: for each of a plurality of image portions, transforming from a spatial domain representation into a transform domain representation; and for each of a plurality of target image portions to be encoded, determining a respective reference portion, determining a prediction of the target image portion based on the reference portion, and encoding the target image portion based on the prediction. The prediction comprises predicting a non- lateral motion of the target image portion relative to the reference portion based on processing of their transform domain coefficients. The encoding comprises generating an encoded bitstream comprising information about the non-lateral motion for use by a decoder.

7. 发明申请

WO2011101451A1 DATA COMPRESSION FOR VIDEO 审中-公开
标题翻译：数据压缩视频
公开(公告)号：WO2011101451A1
公开(公告)日：2011-08-25
申请号：PCT/EP2011/052462
申请日：2011-02-18
申请人： SKYPE LIMITED , BIVOLARSKY, Lazar , VAFIN, Renat , NILSSON, Mattias , ANDERSEN, Soren Vang
发明人： BIVOLARSKY, Lazar , VAFIN, Renat , NILSSON, Mattias , ANDERSEN, Soren Vang
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/115 , H04N19/105 , H04N19/107 , H04N19/119 , H04N19/146 , H04N19/176 , H04N19/46 , H04N19/48 , H04N19/59 , H04N19/61
摘要： A method of compressing video data, the method comprising: providing image data for each of a plurality of image portions; determining an index value for each of said image portions based on the respective image data; for a target image portion to be encoded, identifying a matching image portion having an index value within a search threshold of the index value of the target image portion; and generating difference data for the target image portion relative to the matching image portion, and including the difference data in an encoded video signal.
摘要翻译：一种压缩视频数据的方法，所述方法包括：为多个图像部分中的每一个提供图像数据; 基于各个图像数据确定每个所述图像部分的索引值; 对于要编码的目标图像部分，识别具有在目标图像部分的索引值的搜索阈值内的索引值的匹配图像部分; 以及针对所述目标图像部分相对于所述匹配图像部分生成差异数据，并且将所述差分数据包括在编码视频信号中。

8. 发明申请

WO2011101454A2 DATA COMPRESSION FOR VIDEO 审中-公开
标题翻译：数据压缩视频
公开(公告)号：WO2011101454A2
公开(公告)日：2011-08-25
申请号：PCT/EP2011/052465
申请日：2011-02-18
申请人： SKYPE LIMITED , BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren Vang
发明人： BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren Vang
IPC分类号： H04N7/26
CPC分类号： H04N19/115 , H04N19/105 , H04N19/107 , H04N19/119 , H04N19/146 , H04N19/176 , H04N19/46 , H04N19/48 , H04N19/59 , H04N19/61
摘要： A method of transmitting video data from a transmitter to a receiver, the method comprising: receiving data values of a video signal at a higher resolution; at the transmitter, combining groups of the data values into one or more first units of a first lower-resolution arrangement; encoding and transmitting the first lower-resolution arrangement to the receiver; at the transmitter, combining groups of the data values into one or more second units of a second lower-resolution arrangement, wherein the second units are offset from the first units by a fractional shift such that each second unit partially overlaps with at least one first unit; encoding and transmitting the second lower-resolution arrangement to the receiver; and transmitting an indication of said shift to the receiver; and at the receiver, combining the first and second lower-resolution arrangements based on the indication so as to reconstruct an image of at least a higher resolution than that of the first and second lower- resolution arrangements.
摘要翻译：一种从发射机向接收机发送视频数据的方法，所述方法包括：以更高的分辨率接收视频信号的数据值; 在所述发射机处，将所述数据值的组合合为第一较低分辨率布置的一个或多个第一单元; 编码并将第一低分辨率布置传送到接收机; 在所述发射机处，将所述数据值的组合合为第二较低分辨率布置的一个或多个第二单元，其中所述第二单元通过分数位移偏离所述第一单元，使得每个第二单元部分地与至少一个第一单元单元; 将所述第二低分辨率装置编码并传送到所述接收机; 以及向所述接收机发送所述移位的指示; 并且在接收器处，基于所述指示组合所述第一和第二较低分辨率布置，以便重建比所述第一和第二较低分辨率布置的分辨率至少更高的分辨率的图像。

9. 发明申请

WO2011101453A2 DATA COMPRESSION FOR VIDEO 审中-公开
标题翻译：数据压缩视频
公开(公告)号：WO2011101453A2
公开(公告)日：2011-08-25
申请号：PCT/EP2011/052464
申请日：2011-02-18
申请人： SKYPE LIMITED , BIVOLARSKY, Lazar , VAFIN, Renat , NILSSON, Mattias , ANDERSEN, Soren Vang
发明人： BIVOLARSKY, Lazar , VAFIN, Renat , NILSSON, Mattias , ANDERSEN, Soren Vang
IPC分类号： H04N7/26
CPC分类号： H04N19/115 , H04N19/105 , H04N19/107 , H04N19/119 , H04N19/146 , H04N19/176 , H04N19/46 , H04N19/48 , H04N19/59 , H04N19/61
摘要： A method of encoding a video signal for transmission, comprising: receiving a video signal comprising a plurality of video frames, each frame being divided into a plurality of image portions; for each of a plurality of target ones of said image portions to be encoded, selecting a respective reference portion, generating respective residual data based on the target portion relative to the respective reference portion; during ongoing encoding of the video signal, generating a table of commonly usable reference portions and transmitting an indication of the table to a decoder; and generating an encoded bitstream comprising the residual data together with side information identifying the selected reference portions by reference to an entry in said table, and transmitting the encoded bitstream to the decoder.
摘要翻译：一种编码用于传输的视频信号的方法，包括：接收包括多个视频帧的视频信号，每个帧被分成多个图像部分; 对于要编码的所述图像部分中的多个目标图像部分中的每一个，选择相应的参考部分，基于所述目标部分相对于相应的参考部分生成相应的残差数据; 在视频信号的正在进行的编码期间，产生通常可用的参考部分的表，并将该表的指示发送到解码器; 以及通过参考所述表中的条目，生成包括残留数据的编码比特流以及标识所选择的参考部分的侧面信息，以及将编码的比特流发送到解码器。

10. 发明申请

WO2011101449A1 DATA COMPRESSION FOR VIDEO 审中-公开
标题翻译：数据压缩视频
公开(公告)号：WO2011101449A1
公开(公告)日：2011-08-25
申请号：PCT/EP2011/052460
申请日：2011-02-18
申请人： SKYPE LIMITED , BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren Vang
发明人： BIVOLARSKY, Lazar , NILSSON, Mattias , VAFIN, Renat , ANDERSEN, Soren Vang
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/48 , H04N19/105 , H04N19/146 , H04N19/176 , H04N19/46 , H04N19/61
摘要： A method of selecting reference blocks for intra or inter prediction coding of a current block of a video signal. Each reference blocks is selected by: (i) determining a group of candidate blocks comprising at least some candidate blocks other than immediately adjacent spatial neighbours of the current block; and (ii) selecting one of the candidate blocks as the reference block based on a second metric, different from the first metric, the second metric relating to a number of bits that would be required in the encoded bitstream to encode both the residual block and the side information identifying the respective reference block.
摘要翻译：一种选择用于视频信号的当前块的帧内或帧间预测编码的参考块的方法。通过以下方式来选择每个参考块：（i）确定包括除当前块的紧邻相邻空间邻域之外的至少一些候选块的候选块组; 和（ii）基于与所述第一度量不同的第二度量来选择所述候选块中的一个作为所述参考块，所述第二度量涉及所述编码比特流中将需要编码所述剩余块和该侧信息标识相应的参考块。

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