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1. 发明专利

MY153593A LOW BITRATE AUDIO ENCODING/DECODING SCHEME WITH COMMON PRE-PROCESSING 未知
公开(公告)号：MY153593A
公开(公告)日：2015-02-27
申请号：MYPI20110094
申请日：2009-07-06
申请人： FRAUNHOFER GES ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E V
发明人： BERNHARD GRILL , MAX NEUENDORF , HARALD POPP , NIKOLAUS RETTELBACH , FREDERIK NAGEL , SASCHA DISCH , JUERGEN HERRE , YOSHIKAZU YOKOTANI , STEFAN WABNIK , GERALD SCHULLER , JENS HIRSCHFELD , STEFAN BAYER , GUILLAUME FUCHS , STEFAN GEYERSBERGER , RALF GEIGER , JOHANNES HILPERT , ULRICH KRAEMER , JEREMIE LECOMTE , MARKUS MULTRUS
摘要： AN AUDIO ENCODER COMPRISES A COMMON PREPROCESSING STAGE (100), AN INFORMATION SINK BASED ENCODING BRANCH (400) SUCH AS SPECTRAL DOMAIN ENCODING BRANCH, A INFORMATION SOURCE BASED ENCODING BRANCH (500) SUCH AS AN LPC-DOMAIN ENCODING BRANCH AND A SWITCH (200) FOR SWITCHING BETWEEN THESE BRANCHES AT INPUTS INTO THESE BRANCHES OR OUTPUTS OF THESE BRANCHES CONTROLLED BY A DECISION STAGE (300). AN AUDIO CODER COMPRISES A SPECTRAL DOMAIN DECODING BRANCH, AN LPC-DOMAIN DECODING BRANCH, ONE OR MORE SWITCHES FOR SWITCHING BETWEEN THE BRANCHES AND A COMMON POST-PROCESSING STAGE FOR POST-PROCESSING A TIME-DOMAIN AUDIO SIGNAL FOR OBTAINING A POST-PROCESSED AUDIO SIGNAL.

2. 发明专利

MY155785A NOISE FILLER, NOISE FILLING PARAMETER CALCULATOR ENCODED AUDIO SIGNAL REPRESENTATION, METHODS AND COMPUTER PROGRAM 未知
公开(公告)号：MY155785A
公开(公告)日：2015-11-30
申请号：MYPI20110076
申请日：2009-06-26
申请人： FRAUNHOFER GES ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E V
发明人： NIKOLAUS RETTELBACH , JENS HIRSCHFELD , BERNHARD GRILL , GUILLAUME FUCHS , STEFAN GEYERSBERGER , MARKUS MULTRUS , HARALD POPP , JÜRGEN HERRE , STEFAN WABNIK , GERALD SCHULLER
IPC分类号： G10L19/00
摘要： A NOISE FILLER FOR PROVIDING A NOISE-FILLED SPECTRAL REPRESENTATION OF AN AUDIO SIGNAL ON THE BASIS OF AN INPUT SPECTRAL REPRESENTATION OF THE AUDIO SIGNAL COMPRISES A SPECTRAL REGION IDENTIFIER CONFIGURED TO IDENTIFY SPECTRAL REGIONS OF THE INPUT SPECTRAL REPRESENTATION SPACED FROM NON-ZERO SPECTRAL REGIONS OF THE INPUT SPECTRAL REPRESENTATION BY AT LEAST ONE INTERMEDIATE SPECTRAL REGION, TO OBTAIN IDENTIFIED SPECTRAL REGIONS, AND A NOISE INSERTER CONFIGURED TO SELECTIVELY INTRODUCE NOISE INTO THE IDENTIFIED SPECTRAL REGIONS TO OBTAIN THE NOISE-FILLED SPECTRAL REPRESENTATION OF THE AUDIO SIGNAL. A NOISE FILLING PARAMETER CALCULATOR FOR PROVIDING A NOISE FILLING PARAMETER ON THE BASIS OF A QUANTIZED SPECTRAL REPRESENTATION OF AN AUDIO SIGNAL COMPRISES A SPECTRAL REGION IDENTIFIER, AS MENTIONED ABOVE, AND A NOISE VALUE CALCULATOR CONFIGURED TO SELECTIVELY CONSIDER QUANTIZATION ERRORS OF THE IDENTIFIED SPECTRAL REGIONS FOR A CALCULATION OF THE NOISE FILLING PARAMETER. ACCORDINGLY, AN ENCODED AUDIO SIGNAL REPRESENTATION REPRESENTING THE AUDIO SIGNAL CAN BE OBTAINED. (FIG. 1)

3. 发明专利

MY152708A WATERMARK SIGNAL PROVISION AND WATERMARK EMBEDDING 未知
公开(公告)号：MY152708A
公开(公告)日：2014-11-28
申请号：MYPI2012003827
申请日：2011-02-22
申请人： FRAUNHOFER GES ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E V
发明人： STEFAN WABNIK , JULIANE BORSUM , MARCO BREILING , JOERG PICKEL , BERT GREEVENBOSCH , BERNHARD GRILL , ERNST EBERLEIN , GIOVANNI DEL GALDO , STEFAN KRAEGELOH , REINHARD ZITZMANN , TOBIAS BLIEM
IPC分类号： G10L19/00 , G10L19/018
摘要： A WATERMARK SIGNAL PROVIDER (2400) FOR PROVIDING A WATERMARK SIGNAL (2440) SUITABLE FOR BEING HIDDEN IN AN AUDIO SIGNAL (2430) WHEN THE WATERMARK SIGNAL IS ADDED TO THE AUDIO SIGNAL, SUCH THAT THE WATERMARK SIGNAL REPRESENTS WATERMARK DATA (2450), IS DESCRIBED. THE WATERMARK SIGNAL PROVIDER COMPRISES A PSYCHOACOUSTICAL PROCESSOR (2410) FOR DETERMINING A MASKING THRESHOLD OF THE AUDIO SIGNAL; AND A MODULATOR (2420) FOR GENERATING THE WATERMARK SIGNAL FROM A SUPERPOSITION OF SAMPLE-SHAPING FUNCTIONS SPACED APART FROM EACH OTHER AT A SAMPLE TIME INTERVAL (Tb) OF A TIME-DISCRETE REPRESENTATION OF THE WATERMARK DATA, EACH SAMPLE-SHAPING FUNCTION BEING AMPLITUDE-WEIGHTED WITH A RESPECTIVE SAMPLE OF THE TIME-DISCRETE REPRESENTATION, MULTIPLIED BY A RESPECTIVE AMPLITUDE WEIGHT DEPENDING ON THE MASKING THRESHOLD, THE MODULATOR BEING CONFIGURED SUCH THAT THE SAMPLE TIME INTERVAL IS SHORTER THAN A TIME EXTENSION OF THE SAMPLE-SHAPING FUNCTIONS; AND THE RESPECTIVE AMPLITUDE WEIGHT ALSO DEPENDS ON SAMPLES OF THE TIME-DISCRETE REPRESENTATION NEIGHBORING THE RESPECTIVE SAMPLE IN TIME.

4. 发明专利

MY153562A METHOD AND DISCRIMINATOR FOR CLASSIFYING DIFFERENT SEGMENTS OF A SIGNAL 未知
公开(公告)号：MY153562A
公开(公告)日：2015-02-27
申请号：MYPI20110077
申请日：2009-06-16
申请人： FRAUNHOFER GES ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E V
发明人： GUILLAUME FUCHS , STEFAN BAYER , FREDERIK NAGEL , JÜRGEN HERRE , NIKOLAUS RETTELBACH , STEFAN WABNIK , YOSHIKAZU YOKOTANI , JENS HIRSCHFELD , JÉRÉMIE LECOMTE
摘要： FOR CLASSIFYING DIFFERENT SEGMENTS OF A SIGNAL WHICH COMPRISES SEGMENTS OF AT LEAST A FIRST TYPE AND SECOND TYPE, E.G. AUDIO AND SPEECH SEGMENTS, THE SIGNAL IS SHORT-TERM CLASSIFIED (150) ON THE BASIS OF THE AT LEAST ONE SHORT-TERM FEATURE EXTRACTED FROM THE SIGNAL AND A SHORT-TERM CLASSIFICATION RESULT (152) IS DELIVERED.THE SIGNAL IS ALSO LONG-TERM CLASSIFIED (154) ON THE BASIS OF THE AT LEAST ONE SHORT-TERM FEATURE AND AT LEAST ONE LONG-TERM FEATURE EXTRACTED FROM THE SIGNAL AND A LONG-TERM CLASSIFICATION RESULT (156) IS DELIVERED.THE SHORT-TERM CLASSIFICATION RESULT (152) AND THE LONG-TERM CLASSIFICATION RESULT (156) ARE COMBINED (158) TO PROVIDE AN OUTPUT SIGNAL (160) INDICATING WHETHER A SEGMENT OF THE SIGNAL IS OF THE FIRST TYPE OR OF THE SECOND TYPE.

5. 发明专利

MY152251A AUDIO SIGNAL SYNTHESIZER AND AUDIO SIGNAL ENCODER 未知
公开(公告)号：MY152251A
公开(公告)日：2014-09-15
申请号：MYPI20110075
申请日：2009-06-19
申请人： FRAUNHOFER GES ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E V
发明人： FREDERIK NAGEL , SASCHA DISCH , NIKOLAUS RETTELBACH , MAX NEUENDORF , BERNHARD GRILL , ULRICH KRÄMER , STEFAN WABNIK
IPC分类号： G10L21/02
摘要： IN ACCORDANCE WITH A FIRST ASPECT OF THE INVENTION, AN AUDIO SIGNAL SYNTHESIZER GENERATES A SYNTHESIS AUDIO SIGNAL HAVING A FIRST FREQUENCY BAND AND A SECOND SYNTHESIZED FREQUENCY BAND DERIVED FROM THE FIRST FREQUENCY BAND. THE AUDIO SIGNAL SYNTHESIZER COMPRISES A PATCH GENERATOR, A SPECTRAL CONVERTER, A RAW SIGNAL PROCESSOR AND A COMBINER. THE PATCH GENERATOR PERFORMS AT LEAST TWO DIFFERENT PATCHING ALGORITHMS, WHEREIN EACH PATCHING ALGORITHM GENERATES A RAW SIGNAL HAVING SIGNAL COMPONENTS IN THE SECOND SYNTHESIZED FREQUENCY BAND USING AN AUDIO SIGNAL HAVING SIGNAL COMPONENTS IN THE FIRST FREQUENCY BAND. THE PATCH GENERATOR IS ADAPTED TO SELECT ONE OF THE AT LEAST TWO DIFFERENT PATCHING ALGORITHMS IN RESPONSE TO A CONTROL INFORMATION FOR A FIRST TIME PORTION AND THE OTHER OF THE AT LEAST TWO DIFFERENT PATCHING ALGORITHMS IN RESPONSE TO THE CONTROL INFORMATION FOR A SECOND TIME PORTION DIFFERENT FROM THE FIRST TIME PORTION TO OBTAIN THE RAW SIGNAL FOR FIRST AND THE SECOND TIME PORTION. THE SPECTRAL CONVERTER CONVERTS THE RAW SIGNAL INTO A RAW SIGNAL SPECTRAL REPRESENTATION. THE RAW SIGNAL PROCESSOR PROCESSES THE RAW SIGNAL SPECTRAL REPRESENTATION IN RESPONSE TO SPECTRAL DOMAIN SPECTRAL BAND REPLICATION PARAMETERS TO OBTAIN AN ADJUSTED RAW SIGNAL SPECTRAL REPRESENTATION. THE COMBINER COMBINES AN AUDIO SIGNAL HAVING SIGNAL COMPONENTS IN THE FIRST BAND OR A SIGNAL DERIVED FROM THE AUDIO SIGNAL WITH THE ADJUSTED RAW SIGNAL SPECTRAL REPRESENTATION OR WITH A FURTHER SIGNAL DERIVED FROM THE ADJUSTED RAW SIGNAL SPECTRAL REPRESENTATION TO OBTAIN THE SYNTHESIS AUDIO SIGNAL.

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