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1.发明公开VORRICHTUNG, VERFAHREN UND COMPUTERPROGRAMM ZUM ZUSAMMENSTELLEN EINES TESTS SOWIE VORRICHTUNG, VERFAHREN UND COMPUTERPROGRAMM ZUM PRÜFEN EINES PRÜFLINGS 审中-公开设备，用于测试的测试对象方法和计算机程序一起试验，设备，方法和计算机程序
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公开(公告)号：EP0846375B2
公开(公告)日：2004-08-11
申请号：EP96930044.1
申请日：1996-08-16
IPC分类号： H04B1/66
CPC分类号： H04B1/665
摘要： When an audio signal is coded, coded signals of inferior quality and bit-rate as well as coded signals of high quality and bit-rate are transmitted to a decoder. The low-bit-rate audio signal is coded and transmitted to the decoder first, before a further coded signal is transmitted to the decoder and either alone or together with the first coded signal produces a high-quality decoded signal within the decoder during decoding. This results first in a low-quality decoded signal in the decoder before decoding of the high-quality signal becomes possible.
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3.发明授权
公开(公告)号：EP1149480B1
公开(公告)日：2002-09-04
申请号：EP00926894.7
申请日：2000-04-12
发明人： NEUBAUER, Christian , ALLAMANCHE, Eric , HERRE, Jürgen , SPORER, Thomas , KULESSA, Ralph , BRANDENBURG, Karlheinz , GEIGER, Ralf
IPC分类号： H04H1/00
CPC分类号： H04H20/31 , G10L19/018 , G11B20/00086 , G11B20/00884 , G11B20/00913 , H04B1/707
摘要： According to the inventive method for inserting information into an audio signal, a time multiplex method is combined with a code multiplex method in order to preprocess the information which is to be inserted into the audio signal. During a time multiplex method, a spreading is carried out (22, 24) with two different data sequences in order to be able to distinguish a first time slot from additional time slots. The code multiplex channels are added (26) and weighted (26, 28, 30, 32) while taking into account a psychoacoustic masking threshold of the audio signal, whereupon the weighted code multiplex signal is combined (34) with the audio signal. The time slot of the information channel is used while detecting the information that is inserted into the audio signal in order to synchronize the second information channel which had been spread with a data sequence differing from the data sequence for the other time slots. This results in the provision of a very reliable data transmission in a first information channel as well as the provision of a data transmission with a high transmission rate in the second transmission channel.
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4.发明授权
公开(公告)号：EP0362315B1
公开(公告)日：1992-12-23
申请号：EP89902498.8
申请日：1989-02-25
发明人： SCHOTT, Hartmut , SEITZER, Dieter , GERHAUSER, Heinz , BRANDENBURG, Karlheinz , EBERLEIN, Ernst , KRÄGELOH, Stefan , KAPUST, Rolf , POPP, Harald
IPC分类号： H04B14/04
摘要： The device described has the following features: the device has a first input terminal to which is applied the input signal of the acoustic signal processing system to be monitored, a second input terminal to which is applied the output signal of the system, and a signal processor. The signal processor calculates, by correlation between the two signals present at the two input terminals, the signal delay time of the system to be monitored. The signal processor continuously produces the difference signal from the signal present for a given time interval at the first input terminal and the signal present later at the second input terminal after the signal delay time. The signal processor calculates the spectral composition of the signal present at the first input terminal during the given time interval and the corresponding difference signal. The signal processor calculates the threashold of hearing of a human ear from the spectral composition of the signal present at the first input terminal and compares it with the corresponding difference signal.
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公开(公告)号：EP1602261B1
公开(公告)日：2010-06-09
申请号：EP04719354.5
申请日：2004-03-11
IPC分类号： H04R5/02
CPC分类号： H04R1/025 , H04R1/403 , H04R2201/021
摘要： The invention relates to a loudspeaker system comprising several sonic converters (2) which are fixed in or to the rear of sound passage openings (3) in a carrier plate. The loudspeaker system is characterized in that the carrier plate is embodied in the form of a wall plate (1) for the interiors or outer facades of buildings and in that the sonic converters (2) are integrated into the carrier plate. The inventive loudspeaker system makes it possible to acoustically irradiate an area without the need for esthetically troublesome loudspeakers.
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6.发明授权VERFAHREN UND VORRICHTUNG ZUM ERZEUGEN EINES DATENSTROMS UND VERFAHREN UND VORRICHTUNG ZUM ABSPIELEN EINES DATENSTROMS 有权方法和设备，用于生成数据流的方法和设备用于播放数据流
公开(公告)号：EP1151561B1
公开(公告)日：2004-04-28
申请号：EP99963548.5
申请日：1999-12-15
CPC分类号： H04N7/163 , H04H60/14 , H04H60/73 , H04N21/23476
摘要： The invention relates to a method for generating a second data stream from a first data stream containing a first start block and a first user data block comprising user data. According to said method the first start block is extracted (116) from the first data stream. Next the second start block for the second data stream is generated (118), after which at least a part of the first start block, which part contains information making it possible to trace the origins of the user data, is integrated (120) into the second start block. Finally the second user data block containing the same user data is generated (122) so that a complete second data stream can be obtained. The method provided for by the invention allows for the device-specific encoding of user data, makes it possible to obtain a flexible device-specific copy for other devices of a user and, notably, provides complete references as to the origins of a copy, which in turn permits effective copyright protection.
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7.发明授权VERFAHREN UND VORRICHTUNG ZUM ERZEUGEN EINES VERSCHLÜSSELTEN NUTZDATENSTROMS UND VERFAHREN UND VORRICHTUNG ZUM ENTSCHLÜSSELN EINES VERSCHLÜSSELTEN NUTZDATENSTROMS 有权的方法和设备，用于生成解密加密的用户数据流加密的用户数据流AND METHOD AND APPARATUS
公开(公告)号：EP1133849B1
公开(公告)日：2002-06-12
申请号：EP99965472.6
申请日：1999-12-15
CPC分类号： H04N7/1675 , H04N21/2347 , H04N21/26613 , H04N21/4405 , H04N21/8355
摘要： The invention relates to a method for generating an encoded user data stream which contains a start block and a block containing encoded user data. According to said method a user data code is generated for a user data coding algorithm for encoding user data (102). To obtain the block containing encoded user data of the user data stream, the user data are encoded (104) by means of the user data code and user data coding algorithm generated. A part of the user data stream is processed (106) so as to derive information which characterizes that part of the user data stream. This information is combined with the user data by means of an invertible logic operation (108) so that a base value is obtained. The base value is encoded by means of a code consisting of two different codes and using an asymmetrical encoding method (110), the two different codes being the public or private code for the asymmetrical encoding method. An output value is obtained which is an encoded version of the user data code and the output value is then entered into the start block so that the user data stream is completed (112). Unauthorized changes to the start block or the user data themselves result in automatic destruction of the user data.
摘要翻译： 在用于在加密的有效载荷的方法的数据流产生包含报头和包含加密有效载荷数据的块的方法，生成用于加密的有效载荷数据的有效载荷数据的加密算法的有效载荷数据密钥。 所述有效载荷数据是使用所生成的有效载荷的数据密钥和有效载荷数据的加密算法，以获得含有有效载荷数据流的加密的净荷数据的块加密。 有效载荷数据流的一部分进行处理，以推导出信息标识所述有效载荷数据流的一部分。 的信息与通过可逆逻辑连接的装置中的有效载荷数据连接，以获得一个基本值。 该基本值是使用的两个键通过在非对称加密方法是从海誓山盟不同密钥最后加密，则两个不同的密钥作为公共和私有密钥分别对非对称加密方法来获得在输出值为的加密版本 有效载荷数据密钥。 输出值最终输入到报头以完成有效载荷流。 数据本身，其被未被授权的报头和有效载荷的改变，导致对所述有效载荷数据的自动破坏。
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公开(公告)号：EP0978172B1
公开(公告)日：2000-10-11
申请号：EP98914886.1
申请日：1998-03-13
发明人： SCHILDBACH, Wolfgang , HERRE, Jürgen , SIELER, Martin , BRANDENBURG, Karlheinz , GERHÄUSER, Heinz
CPC分类号： G11B20/1876 , G10L19/005 , G11B20/00992 , H04H60/11
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9.发明公开CODIEREN UND DECODIEREN VON AUDIOSIGNALEN UNTER VERWENDUNG VON INTENSITY-STEREO UND PRÄDIKTION 失效编码和解码音频信号，使用强度立体声与预测
公开(公告)号：EP0910928A1
公开(公告)日：1999-04-28
申请号：EP97927117.0
申请日：1997-06-03
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , AT & T Laboratories/Research , Lucent Technologies
发明人： GBUR, Uwe , DIETZ, Martin , BRANDENBURG, Karlheinz , GERHÄUSER, Heinz , HERRE, Jürgen , QUACKENBUSH, Schuyler
CPC分类号： H04B1/665 , G10L19/008 , G10L19/04 , H04B1/667 , H04B14/068 , H04S1/007 , H04S3/00
摘要： When coding and decoding stereophonic spectral values, both the intensity stereo process and a prediction process are used to achieve a high data compression. When an intensity stereo coding is active in a section composed of scaling factor bands (28), prediction for the right channel (R) is deactivated in this area, so that the prediction results are not used to build the coded stereophonic spectral values. The predictor of the right channel (R) is supplied with stereophonic spectral values for this channel which are in turn decoded by an intensity stereo process, so that prediction for the right channel (R) can continue to adapt itself.
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10.发明授权VERFAHREN ZUR MESSUNG DER ERHALTUNG STEREOPHONER AUDIOSIGNALE UND VERFAHREN ZUR ERKENNUNG GEMEINSAM CODIERTER STEREOPHONER AUDIOSIGNALE 失效水土保持立体声音频信号的测量和检测方法的方法TOGETHER编码式立体声音频信号
公开(公告)号：EP0787416B1
公开(公告)日：1998-03-18
申请号：EP95935930.8
申请日：1995-10-11
发明人： KEYHL, Michael , HERRE, Jürgen , SCHMIDMER, Christian , BRANDENBURG, Karlheinz , SEITZER, Dieter
摘要： In order to measure the fidelity of stereophonic audio signals, a stereophonic signal is used as reference signal (X) and a signal to be tested (X') is created by processing the reference signal (X), for example by coding then decoding the reference signal (X). Both signals (X, X') are transformed into the frequency range in order to create spectral data that are representative of each partial band (i). Signal values (Gi; Gi') for each partial band (i) of both reference signal (X) and signal to be tested (X') are determined from the spectral data of the channels (L, R) of the reference signal or signal to be tested. Conclusions are made about the fidelity of the stereophonic audio signals processed or coded by using a determined processing or coding technique from the comparison of the characteristic values (Gi; Gi') of signals belonging to the same partial band (i).
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