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11. 发明申请

WO2012025431A2 CONCEALMENT OF INTERMITTENT MONO RECEPTION OF FM STEREO RADIO RECEIVERS 审中-公开
标题翻译： FM立体声无线电接收机的间接单声道接收
公开(公告)号：WO2012025431A2
公开(公告)日：2012-03-01
申请号：PCT/EP2011/064084
申请日：2011-08-16
申请人： DOLBY INTERNATIONAL AB , SEHLSTROM, Leif , PURNHAGEN, Heiko , ENGDEGARD, Jonas
发明人： SEHLSTROM, Leif , PURNHAGEN, Heiko , ENGDEGARD, Jonas
IPC分类号： G10L19/00
CPC分类号： H04R5/00 , G10L19/005 , G10L19/008 , G10L21/0364 , H04B1/1676 , H04H40/81
摘要： The present invention relates to audio signal processing. In particular, it relates to a method and system for reliably concealing intermittent mono reception of FM stereo radio receivers. The system comprises a parametric stereo parameter estimation stage configured to determine a first parametric stereo parameter based on a first frame of the received two-channel audio signal. The system further comprises a concealment detection stage configured to determine an energy of a side signal within the first signal frame; determine a number of following successive signal frames during which the energy of the side signal drops from a value above the high threshold to a value below a low threshold; determine that the two-channel audio signal following the first signal frame is a forced mono signal if the number of successive signal frames is below a frame threshold; and determine the parametric stereo parameter based on the first parametric stereo parameter.
摘要翻译：本发明涉及音频信号处理。特别涉及用于可靠地隐藏FM立体声无线电接收机的间歇单声道接收的方法和系统。该系统包括参数立体声参数估计级，其被配置为基于所接收的双声道音频信号的第一帧来确定第一参数立体声参数。所述系统还包括隐藏检测级，被配置为确定所述第一信号帧内的侧信号的能量; 确定随后的连续信号帧的数量，在此期间，侧信号的能量从高于高阈值的值下降到低于低阈值的值; 如果连续信号帧的数量低于帧阈值，则确定跟随第一信号帧的双声道音频信号是强制单声道信号; 并根据第一参数立体声参数确定参数立体声参数。

12. 发明申请

WO2010125104A1 APPARATUS FOR PROVIDING ONE OR MORE ADJUSTED PARAMETERS FOR A PROVISION OF AN UPMIX SIGNAL REPRESENTATION ON THE BASIS OF A DOWNMIX SIGNAL REPRESENTATION, AUDIO SIGNAL DECODER, AUDIO SIGNAL TRANSCODER, AUDIO SIGNAL ENCODER, AUDIO BITSTREAM, METHOD AND COMPUTER PROGRAM USING AN OBJECT-RELATED PARAMETRIC INFORMATION 审中-公开
标题翻译：提供一个或多个调整参数的装置，用于提供基于下标信号表示，音频信号解码器，音频信号转换器，音频信号编码器，音频比特，方法AN的UPMIX信号表示
公开(公告)号：WO2010125104A1
公开(公告)日：2010-11-04
申请号：PCT/EP2010/055717
申请日：2010-04-28
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , DOLBY INTERNATIONAL AB , FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG , HERRE, Jürgen , HOELZER, Andreas , TERENTIEV, Leonid , KASTNER, Thorsten , FALCH, Cornelia , PURNHAGEN, Heiko , ENGDEGARD, Jonas
发明人： HERRE, Jürgen , HOELZER, Andreas , TERENTIEV, Leonid , KASTNER, Thorsten , FALCH, Cornelia , PURNHAGEN, Heiko , ENGDEGARD, Jonas
IPC分类号： G10L19/00 , G10L19/14
CPC分类号： G10L19/008 , G10L19/20
摘要： An apparatus for providing one or more adjusted parameters for a provision of an upmix signal representation on the basis of a downmix signal representation and an object-related parametric information comprises a parameter adjuster. The parameter adjuster is configured to receive one or more input parameters and to provide, on the basis thereof, one or more adjusted parameters. The parameter adjuster is configured to provide the one or more adjusted parameters in dependence on the one or more input parameters and the object-related parametric information, such that a distortion of the upmix signal representation caused by the use of non-optimal parameters is reduced at least for input parameters deviating from optimal parameters by more than a predetermined deviation.
摘要翻译：基于降混信号表示和对象相关参数信息提供用于提供上混合信号表示的一个或多个调整参数的装置包括参数调整器。参数调整器被配置为接收一个或多个输入参数并且在其基础上提供一个或多个调整的参数。参数调整器被配置为根据一个或多个输入参数和对象相关参数信息来提供一个或多个经调整的参数，使得由使用非最优参数引起的上混信号表示的失真减少至少对于偏离最佳参数的输入参数大于预定偏差。

13. 发明申请

WO2013045693A2 HIGH QUALITY DETECTION IN FM STEREO RADIO SIGNALS 审中-公开
标题翻译： FM立体声无线电信号的高质量检测
公开(公告)号：WO2013045693A2
公开(公告)日：2013-04-04
申请号：PCT/EP2012/069330
申请日：2012-10-01
申请人： DOLBY INTERNATIONAL AB
发明人： ENGDEGARD, Jonas , PURNHAGEN, Heiko , SEHLSTROM, Leif
IPC分类号： G10L25/69
CPC分类号： H04H40/45 , G10L19/008 , G10L25/69 , H04B1/1676
摘要： The present document relates to audio signal processing, in particular to an apparatus and a corresponding method for improving an audio signal of an FM stereo radio receiver. In particular, the present document relates to a method and system for reliably detecting the quality of a received FM stereo radio signal and for selecting an appropriate processing based on the detected quality. An apparatus (20) configured to estimate the quality of a received multi-channel FM radio signal is described. The received multi¬ channel FM radio signal is representable as a mid signal and a side signal, and the side signal is indicative of a difference between a left signal and a right signal. The apparatus (20) comprises a power determination unit configured to determine (101) a power of the mid signal, referred to as mid power, and a power of the side signal, referred to as side power; a ratio determination unit configured to determine (102) a ratio of the mid power and the side power, thereby yielding a mid-to-side ratio; and a quality determination unit configured to determine (105) a quality indicator of the received FM radio signal based at least on the mid-to-side ratio.
摘要翻译：本文件涉及音频信号处理，尤其涉及用于改进FM立体声无线电接收器的音频信号的装置和相应方法。特别地，本文件涉及用于可靠地检测所接收的FM立体声无线电信号的质量并且用于基于检测到的质量选择适当的处理的方法和系统。描述了被配置为估计所接收的多频道FM无线电信号的质量的装置（20）。收到的multi＆not; 信道FM无线电信号可表示为中间信号和侧信号，侧信号表示左信号和右信号之间的差异。所述装置（20）包括功率确定单元，所述功率确定单元被配置为确定（101）被称为中功率的中间信号的功率和被称为侧功率的侧信号的功率; 比率确定单元，被配置为确定（102）中等功率和副功率的比率，从而产生中等比率; 以及质量确定单元，被配置为至少基于所述中侧比确定（105）所接收的FM无线电信号的质量指标。

14. 发明申请

WO2012091938A1 RANKING REPRESENTATIVE SEGMENTS IN MEDIA DATA 审中-公开
标题翻译：在媒体数据中排名代表部分
公开(公告)号：WO2012091938A1
公开(公告)日：2012-07-05
申请号：PCT/US2011/065089
申请日：2011-12-15
申请人： DOLBY LABORATORIES LICENSING CORPORATION , DOLBY INTERNATIONAL AB , RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
发明人： RESCH, Barbara , RADHAKRISHNAN, Regunathan , BISWAS, Arijit , ENGDEGARD, Jonas
IPC分类号： G10H1/00 , G06K9/00 , G06F17/30
CPC分类号： H04R29/00 , G06F17/00 , G06F17/3053 , G10H1/0008 , G10H2210/061 , G10H2240/151 , G10L25/48
摘要： Techniques for ranking representative segments in media data are provided. Media features of many different types may be extracted from the media data. A plurality of ranking scores may be assigned to a plurality of candidate representative segments. Each individual candidate representative segment in the plurality of candidate representative segments comprises at least one scene in one or more statistical patterns in media features of the media data based on one or more types of features extractable from the media data. Each individual ranking score in the plurality of ranking scores may be assigned to an individual candidate representative segment in the plurality of candidate representative segments. A representative segment to be played to an end user may be selected from the candidate representative segments, based on the plurality of ranking scores.
摘要翻译：提供了在媒体数据中排列代表片段的技术。可以从媒体数据中提取许多不同类型的媒体特征。可以将多个排名得分分配给多个候选代表段。基于从媒体数据可提取的一种或多种类型的特征，多个候选代表段中的每个候选代表段包括媒体数据的媒体特征中的一个或多个统计模式中的至少一个场景。可以将多个排名得分中的每个个体排名得分分配给多个候选代表段中的个别候选代表段。可以基于多个排名得分从候选代表段中选择要向最终用户播放的代表段。

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