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1.发明公开Discriminator for differently modulated signals and method for reproducing original music data code 有权鉴别以各种方式调制信号，并且过程的原始音乐文件的任务
公开(公告)号：EP1233404A2
公开(公告)日：2002-08-21
申请号：EP02001626.7
申请日：2002-01-23
申请人： YAMAHA CORPORATION
发明人： Jun, Ishii , Takashi, Tamaki
CPC分类号： G10H1/0075 , G10H7/02
摘要： A nibble stream (DS1) containing MIDI music data words and synchronous nibbles ([F]) and an external audio signal are selectively converted to an audio-frequency signal, which in turn is converted to a set of PCM codes for storing it in a compact disc (22); and the audio frequency signal, which is demodulated from the PCM data codes, is analyzed to see which is the origin of the audio frequency signal on the basis of the signal level and what sort of modulation technique was employed on the basis of features of the audio frequency signal such as peak-to-peak intervals and similarity to reference waveforms so that the nibble stream or the external audio signal is exactly reproduced from the audio frequency signal.
摘要翻译： 半字节流（DS1）包含MIDI音乐数据字和同步半字节（AFU）和外部音频信号被选择性地转化为对声频信号，该信号又被转换成一组的PCM码用于在光盘存储它 （22）; 和音频信号，所有这一切都被从PCM数据码解调，进行分析以查看所有这些是音频信号的信号电平的基础上和什么样的调制技术的上的所述特征的基础上，采用的原点 音频信号：如峰 - 峰间隔和相似参考波形所以做了半字节流或外部音频信号被精确地从音频频率信号再现。
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2.发明公开Discriminator for differently modulated signals and method for reproducing original music data code 有权鉴别以各种方式调制信号，并且进程的音乐文件originelen任务
公开(公告)号：EP1233404A3
公开(公告)日：2003-08-20
申请号：EP02001626.7
申请日：2002-01-23
申请人： YAMAHA CORPORATION
发明人： Jun, Ishii , Takashi, Tamaki
CPC分类号： G10H1/0075 , G10H7/02
摘要： A nibble stream (DS1) containing MIDI music data words and synchronous nibbles ([F]) and an external audio signal are selectively converted to an audio-frequency signal, which in turn is converted to a set of PCM codes for storing it in a compact disc (22); and the audio frequency signal, which is demodulated from the PCM data codes, is analyzed to see which is the origin of the audio frequency signal on the basis of the signal level and what sort of modulation technique was employed on the basis of features of the audio frequency signal such as peak-to-peak intervals and similarity to reference waveforms so that the nibble stream or the external audio signal is exactly reproduced from the audio frequency signal.
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3.发明授权Discriminator for differently modulated signals and method for reproducing original music data code 有权鉴别以各种方式调制信号，并且过程的原始音乐文件的任务
公开(公告)号：EP1233404B1
公开(公告)日：2005-08-03
申请号：EP02001626.7
申请日：2002-01-23
申请人： YAMAHA CORPORATION
发明人： Jun, Ishii , Takashi, Tamaki
CPC分类号： G10H1/0075 , G10H7/02
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