会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Speech recognition method and apparatus
    • 语音识别方法和装置
    • US4918731A
    • 1990-04-17
    • US213826
    • 1988-06-30
    • Tetsuya Muroi
    • Tetsuya Muroi
    • G10L15/00G10L15/12
    • G10L15/12G10L15/00
    • A reference speech pattern is described as a time series of a fixed number of states. Each of states is described with one feature vector (centroid) which represents a feature quantity of a speech portion contained in the state, and a duration time of that state. Pattern matching is carried out between the time series of feature vectors of the input speech pattern and the time series of the states which describe the reference pattern. A weighting function modifies the pattern matching distance depending on differences in duration times between the input speech and the reference pattern.
    • 参考语音模式被描述为固定数量的状态的时间序列。 每个状态用一个特征向量(质心)来描述,该特征向量(质心)表示包含在该状态中的语音部分的特征量,以及该状态的持续时间。 在输入语音模式的特征向量的时间序列与描述参考模式的状态的时间序列之间进行模式匹配。 加权函数根据输入语音和参考模式之间的持续时间的差异来修改模式匹配距离。
    • 4. 发明授权
    • Speech segment detection and word recognition
    • 语音段检测和字识别
    • US06317711B1
    • 2001-11-13
    • US09503750
    • 2000-02-14
    • Tetsuya Muroi
    • Tetsuya Muroi
    • G10L1502
    • G10L15/05
    • In a speech segment detection method, a sequence of speech samples is provided from an input speech signal and a sequence of feature vectors is provided from the speech samples, the feature vectors having respective speech power levels. A minimum speech power among the speech power levels in the feature vector sequence is detected. Normalized speech power levels are computed based on the speech power levels and the minimum speech power. Each of the normalized speech power levels is compared with a predetermined threshold value to detect speech segments in the input speech signal. Further, a speech recognition system and method and a computer-readable medium, using the speech segment detection method, are also disclosed.
    • 在语音段检测方法中,从输入语音信号提供语音样本序列,并且从语音样本提供特征向量序列,特征向量具有各自的语音功率电平。 检测特征向量序列中语音功率电平之间的最小语音功率。 基于语音功率电平和最小语音功率来计算归一化语音功率电平。 将每个标准化语音功率电平与预定阈值进行比较,以检测输入语音信号中的语音段。 此外,还公开了使用语音段检测方法的语音识别系统和方法以及计算机可读介质。