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1. 发明申请

WO2005083681A8 DEVICE AND METHOD FOR DETERMINING A QUANTISER STEP SIZE 审中-公开
标题翻译：设备和方法确定量化步长
公开(公告)号：WO2005083681A8
公开(公告)日：2008-03-27
申请号：PCT/EP2005001652
申请日：2005-02-17
申请人： FRAUNHOFER GES FORSCHUNG , GRILL BERNHARD , SCHUG MICHAEL , TEICHMANN BODO , RETTELBACH NIKOLAUS
发明人： GRILL BERNHARD , SCHUG MICHAEL , TEICHMANN BODO , RETTELBACH NIKOLAUS
IPC分类号： G10L19/032
CPC分类号： G10L19/032
摘要： In order to determine a quantiser step size for quantising a signal comprising audio or video information, a first quantiser step size and an interference threshold are supplied (502). According to the invention, the actual interference introduced by means of the first quantizer step size is determined (504) and compared with the interference threshold (506). Even if the comparison indicates that the actually introduced interference is higher than the threshold, a second coarser quantizer step size is used (508), that is then used for the quantisation (514) if it emerges that the interference introduced by the coarser second quantizer step size is lower than the threshold or the interference introduced by the first quantiser step size (512). In this way, the quantisation interference is reduced during the coarsening of the quantisation and thus during an increase in the compression gain.
摘要翻译：具有用于确定用于量化的信号时，音频或视频信息，第一量化器步长和干扰阈值被传递（502）一个量化器步长。然后由第一量化器步长实际故障被确定（504）引入，并与故障阈值进行比较（506）是。尽管比较结果显示引入的实际干扰大于阈值，但第二较粗量化器步长被使用（508），然后将其用于量化（514），如果结果是由引入的第二较粗糙的量化器步长干扰比由第一量化器步长障碍（512）引入的阈值或更小。这将减少量化在量化的粗大化，从而导致增加的Komprimiergewinns。

2. 发明申请

WO0152240A8 DEVICE AND METHOD FOR DETERMINING A CODING BLOCK RASTER OF A DECODED SIGNAL 审中-公开
标题翻译：装置和方法用于确定解码信号的编码块光栅
公开(公告)号：WO0152240A8
公开(公告)日：2001-08-16
申请号：PCT/EP0100241
申请日：2001-01-10
申请人： FRAUNHOFER GES FORSCHUNG , HERRE JUERGEN , BRANDENBURG KARLHEINZ , SPORER THOMAS , SCHUG MICHAEL , SCHILDBACH WOLFGANG
发明人： HERRE JUERGEN , BRANDENBURG KARLHEINZ , SPORER THOMAS , SCHUG MICHAEL , SCHILDBACH WOLFGANG
IPC分类号： G10L19/02 , G10L19/14
CPC分类号： G10L19/02
摘要： According to the inventive method for determining a coding block raster on which a decoded signal is based, a segment of the decoded signal is picked out first (1), this section beginning at a certain output sampling value of the decoded signal. Said segment is then converted into a spectral representation (12), whereupon said spectral representation is evaluated in relation to a predetermined criterion (13) in order to obtain an evaluation result for the segment. This procedure is repeated for a plurality of different segments beginning at different output scanning values, in order to obtain a plurality of evaluation results. Finally, said plurality of evaluation results is searched (14) in order to establish the evaluation result that has an extreme value compared to the other evaluation results, in such a way that it can be assumed that the segment to which this evaluation result is allocated matches the coding block raster on which the decoded signal is based. According to the invention, this method can be used to determine the coding block raster for any decoded signal that has no explicit information about its coding block raster.
摘要翻译：在确定在其上的解码信号是基于编码块光栅，解码信号的一部分最初被挑选出（11），其开始于解码信号的一个特定的输出样本。然后，部分被转换为频谱表示（12），以便然后相对于频谱表示评估预定标准（13），以获得用于所述部分的评价结果。重复该过程对于多个起始于不同部分的相应的不同的输出采样值的中，为了获得多个评价结果的。最后扫描的多数的评价结果（14）来确定的评价结果，它具有一个极端值相对于其他评价结果使得则可以假定与此评价结果相关联，与编码所述部分是块光栅一致，则解码信号底层。根据本发明，因此可以对具有绕其编码块光栅没有明确的信息的任何解码信号，要确定的编码块栅格。

3. 发明申请

WO2012138819A3 AUDIO ENCODING METHOD AND SYSTEM FOR GENERATING A UNIFIED BITSTREAM DECODABLE BY DECODERS IMPLEMENTING DIFFERENT DECODING PROTOCOLS 审中-公开
标题翻译：用于生成实现不同解码协议的解码器可解码的统一比特流的音频编码方法和系统
公开(公告)号：WO2012138819A3
公开(公告)日：2012-12-20
申请号：PCT/US2012032252
申请日：2012-04-05
申请人： DOLBY LAB LICENSING CORP , DOLBY INT AB , RIEDMILLER JEFFREY C , FARAHANI FARHAD , SCHUG MICHAEL , RADHAKRISHNAN REGUNATHAN , VINTON MARK S
发明人： RIEDMILLER JEFFREY C , FARAHANI FARHAD , SCHUG MICHAEL , RADHAKRISHNAN REGUNATHAN , VINTON MARK S
IPC分类号： G10L19/14
CPC分类号： G10L19/002 , G10L19/167
摘要： In a class of embodiments, an audio encoding system (typically, a perceptual encoding system that is configured to generate a single ("unified") bitstream that is compatible with (i.e., decodable by) a first decoder configured to decode audio data encoded in accordance with a first encoding protocol (e.g., the multichannel Dolby Digital Plus, or DD+, protocol) and a second decoder configured to decode audio data encoded in accordance with a second encoding protocol (e.g., the stereo AAC, HE AAC v1, or HE AAC v2 protocol). The unified bitstream can include both encoded data (e.g., bursts of data) decodable by the first decoder (and ignored by the second decoder) and encoded data (e.g., other bursts of data) decodable by the second decoder (and ignored by the first decoder). In effect, the second encoding format is hidden within the unified bitstream when the bitstream is decoded by the first decoder, and the first encoding format is hidden within the unified bitstream when the bitstream is decoded by the second decoder. The format of the unified bitstream generated in accordance with the invention may eliminate the need for transcoding elements throughout an entire media chain and/or ecosystem. Other aspects of the invention are an encoding method performed by any embodiment of the inventive encoder, a decoding method performed by any embodiment of the inventive decoder, and a computer readable medium (e.g., disc) which stores code for implementing any embodiment of the inventive method.
摘要翻译：在一类实施例中，音频编码系统（典型地，被配置为生成与第一解码器兼容（即可解码）的单个（“统一”）比特流的感知编码系统被配置为解码在根据第一编码协议（例如，多声道Dolby Digital Plus或DD +协议）和第二解码器，第二解码器被配置为解码根据第二编码协议编码的音频数据（例如，立体声AAC，HE AAC v1或HE AAC v2协议），统一比特流可以包括可由第一解码器解码（并且被第二解码器忽略）和可由第二解码器解码的编码数据（例如，其他数据突发）的编码数据（例如，数据的突发）并且被第一解码器忽略）实际上，当比特流被第一解码器解码时，第二编码格式被隐藏在统一比特流内，并且当比特流被隐藏在统一比特流内时，第一编码格式被隐藏由第二解码器解码。根据本发明生成的统一比特流的格式可以消除在整个媒体链和/或生态系统中对转码元件的需要。本发明的其他方面是由本发明的编码器的任何实施例执行的编码方法，由本发明的解码器的任何实施例执行的解码方法，以及存储用于实现本发明的任何实施例的代码的计算机可读介质（例如，盘）方法。

4. 发明申请

WO2011015369A8 AUTHENTICATION OF DATA STREAMS 审中-公开
标题翻译：数据流的验证
公开(公告)号：WO2011015369A8
公开(公告)日：2012-03-01
申请号：PCT/EP2010004827
申请日：2010-08-06
申请人： DOLBY INT AB , BOEHM REINHOLD , GROESCHEL ALEXANDER , HOERICH HOLGER , HOMM DANIEL , SCHILDBACH WOLFGANG A , SCHUG MICHAEL , WATZKE OLIVER , WOLTERS MARTIN , ZIEGLER THOMAS
发明人： BOEHM REINHOLD , GROESCHEL ALEXANDER , HOERICH HOLGER , HOMM DANIEL , SCHILDBACH WOLFGANG A , SCHUG MICHAEL , WATZKE OLIVER , WOLTERS MARTIN , ZIEGLER THOMAS
IPC分类号： G11B20/00 , G06F21/00 , H04H60/56 , H04L29/06 , H04N7/167 , H04N7/24 , H04N7/52
CPC分类号： G11B20/00086 , G11B20/00007 , G11B20/00166 , G11B20/00173 , G11B20/00188 , G11B20/0021 , G11B2020/00028 , H04H20/31 , H04H60/37 , H04H60/73 , H04H2201/50 , H04L65/602 , H04N21/23424 , H04N21/235 , H04N21/2541 , H04N21/435 , H04N21/44016 , H04N21/462 , H04N21/6332 , H04N21/654 , H04N21/8106 , H04N21/835
摘要： The present invention relates to techniques for authentication of data streams. Specifically, the invention relates to the insertion of identifiers into a data stream, such as a Dolby Pulse, AAC or HE AAC bitstream, and the authentication and verification of the data stream based on such identifiers. A method and system for encoding a data stream comprising a plurality of data frames is described. The method comprises the step of generating a cryptographic value of a number N of successive data frames and configuration information, wherein the configuration information comprises information for rendering the data stream. The method then inserts the cryptographic value into the data stream subsequent to the N successive data frames.
摘要翻译：本发明涉及用于认证数据流的技术。具体地，本发明涉及将标识符插入诸如杜比脉冲，AAC或HE AAC比特流之类的数据流，以及基于这些标识符的数据流的认证和验证。描述了一种用于对包括多个数据帧的数据流进行编码的方法和系统。该方法包括生成连续数据帧的N个密码值和配置信息的步骤，其中配置信息包括用于呈现数据流的信息。然后，该方法在N个连续数据帧之后将密码值插入到数据流中。

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