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1. 发明授权

US08195462B2 System and method for providing large vocabulary speech processing based on fixed-point arithmetic 有权
标题翻译：基于定点算法提供大词汇语音处理的系统和方法
公开(公告)号：US08195462B2
公开(公告)日：2012-06-05
申请号：US11276151
申请日：2006-02-16
申请人： Charles Douglas Blewett , Enrico Luigi Bocchieri
发明人： Charles Douglas Blewett , Enrico Luigi Bocchieri
IPC分类号： G10L15/14 , G10L15/28
CPC分类号： G10L15/142 , G10L15/28
摘要： Disclosed herein is a system, method and computer-readable medium storing instructions for controlling a computing device according to the method. The invention relates to a system, method and computer-readable medium storing instructions for controlling a computing device according to the method. As an example embodiment, the method uses a speech recognition decoder that operates or uses fixed point arithmetic. The exemplary method comprises representing arc costs associated with at least one finite state transducer (FST) in fixed point, representing parameters associated with a hidden Markov model (HMM) in fixed point and processing speech data in the speech recognition decoder using fixed point arithmetic for the fixed point FST arc costs and the fixed point HMM parameters. The method may also include computing at the decoder sentence hypothesis probabilities with fixed point arithmetic as type Q-2e numbers.
摘要翻译：本文公开了一种根据该方法存储用于控制计算设备的指令的系统，方法和计算机可读介质。本发明涉及根据该方法存储用于控制计算设备的指令的系统，方法和计算机可读介质。作为示例实施例，该方法使用操作或使用定点算术的语音识别解码器。该示例性方法包括表示与固定点中的至少一个有限状态换能器（FST）相关联的电弧成本，表示与固定点中的隐马尔可夫模型（HMM）相关联的参数，并且在语音识别解码器中使用定点运算处理语音数据固定点FST弧成本和固定点HMM参数。该方法还可以包括在解码器处计算具有固定点算术的假设概率作为类型Q-2e数。

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