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1.发明授权Voice recognition system and method involving registered voice patterns formed from superposition of a plurality of other voice patterns 失效语音识别系统和方法涉及由多个其他语音模式叠加而形成的注册语音模式
公开(公告)号：US5347612A
公开(公告)日：1994-09-13
申请号：US552842
申请日：1990-07-16
CPC分类号： G10L15/00
摘要： After sampling a voice signal by a microphone (31), a voice interval is detected by a voice interval detector (32). Then, the voice signal is processed by a frequency analyzer (33) having a predetermined number of channels at a predetermined time interval, whereby a corresponding portion of the voice signal is quantized at each channel. Then, quantized data obtained from these channels are binary converted (34) to thereby form a frame comprised of a series of binary data. Each data of this frame corresponds to one of the channels, and preferably it is set to be an integral multiple of a computer calculation unit (e.g., 4 bits, 8 bits, etc.). When forming a combination frame by superimposing two or more of such frames, the combination frame is divided into layers, whereby it is so structured that each bit is represented by a binary number in each layer. On the other hand, it may also be so structured that one frame is divided in a plurality of sub-frames and a preliminary comparison process is carried out using each sub-frame.
摘要翻译： 在通过麦克风（31）采样语音信号之后，语音间隔检测器（32）检测语音间隔。 然后，语音信号由具有预定数量的信道的频率分析器（33）以预定的时间间隔进行处理，由此在每个信道上对语音信号的相应部分进行量化。 然后，从这些通道获得的量化数据被二进制转换（34），从而形成由一系列二进制数据组成的帧。 该帧的每个数据对应于一个信道，优选地被设置为计算机计算单元的整数倍（例如，4位，8位等）。 当通过叠加两个或更多个这样的帧来形成组合帧时，组合帧被分成多个层，由此它被构造成使得每个比特由每层中的二进制数表示。 另一方面，也可以如此构造使得一帧被分割成多个子帧，并且使用每个子帧执行初步比较处理。
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