公开(公告)号：WO99050832A1

公开(公告)日：1999-10-07

申请号：PCT/US1999/003833

申请日：1999-02-23

IPC: G10L15/02 ,  G10L25/93 ,  H04W88/18 ,  G10L9/08 ,  G10L9/16 ,  H04Q7/20

CPC classification number: H04W4/18 ,  G10L15/02 ,  G10L2015/025 ,  G10L2025/937 ,  H04W4/14

Abstract: A radio communication system includes a voice recognition system (221) for converting (400) a caller's voice message to a textual speech message. The textual speech message is then transmitted to an intended selective call radio (122). To perform these functions, the radio communication system includes a caller interface circuit (218), a transmitter (116), and a processor (222). To perform voice-to-text conversion, the processor is adapted to cause the caller interface circuit to sample a voice signal generated by the caller during a plurality of frame intervals, and to apply a Fourier transform thereto, thereby generating spectral data. The spectral data is subdivided into a plurality of bands. The spectral envelope of the spectral data is then filtered out to generate filtered spectral data. A Fourier transform is applied thereto to generate an autocorrelation function for each band. From the autocorrelation function of each band, a magnitude is determined, which is representative of the degree of voiceness of each band. The degree of voiceness for each band is then applied to a corresponding plurality of phoneme models, which are used to derive a textual equivalent of speech from the voice signal. The textual equivalent of speech is then transmitted to the selective call radio by way of the transmitter.

Abstract translation: 无线电通信系统包括用于将呼叫者的语音消息转换（400）到文本语音消息的语音识别系统（221）。 然后将文本语音消息发送到预期的选择呼叫无线电（122）。 为了执行这些功能，无线电通信系统包括呼叫者接口电路（218），发射器（116）和处理器（222）。 为了执行语音到文本转换，处理器适于使呼叫者接口电路在多个帧间隔期间采样由呼叫者产生的语音信号，并对其进行傅里叶变换，由此产生频谱数据。 光谱数据被细分成多个频带。 然后滤出光谱数据的光谱包络以产生滤波的光谱数据。 对其进行傅立叶变换以产生每个频带的自相关函数。 根据每个频带的自相关函数，确定一个幅度，其代表每个频带的声音程度。 然后将每个频带的声音程度应用于相应的多个音素模型，这些音素模型用于从语音信号中导出语音的文本等价物。 然后通过发射机将语音的文本等价物发送到选呼通话。

公开(公告)号：WO98054695A1

公开(公告)日：1998-12-03

申请号：PCT/US1998/009705

申请日：1998-05-14

IPC: H04M3/38 ,  H04M3/493 ,  G10L5/00 ,  G10L9/08 ,  H04M11/00

CPC classification number: G10L17/04 ,  G10L15/08 ,  G10L15/10 ,  G10L17/005 ,  G10L17/24 ,  G10L25/12 ,  G10L25/24 ,  G10L2015/0638 ,  H04M3/38 ,  H04M3/382 ,  H04M3/385 ,  H04M3/493 ,  H04M2201/40

Abstract: A method of accessing a dial-up service involves the following steps: (a) dialing a service number (172); (b) speaking a number of digits to form a first utterance (174); (c) recognizing the digits using speaker independent speaker recognition (176); (d) when a user has used the dial-up service previously, verifying the user based on the first utterance using a speaker verification system (178); (e) when the user cannot be verified, requesting the user enter a personal identification number (182); and (f) when the personal identification number is valid (184), providing access the dial-up service (186).

Abstract translation: 接入拨号服务的方法包括以下步骤：（a）拨打服务号码（172）; （b）说出一些数字形成第一个发音（174）; （c）使用讲话者独立的演讲人识别识别数字（176）; （d）当用户以前使用过拨号服务时，使用扬声器验证系统（178）基于第一话语来验证用户; （e）当用户不能被验证时，请求用户输入个人识别号码（182）; 和（f）当个人识别号码有效时（184），提供接入拨号服务（186）。

公开(公告)号：WO2022010966A1

公开(公告)日：2022-01-13

申请号：PCT/US2021/040613

申请日：2021-07-07

Applicant: PEARSON EDUCATION, INC.

Inventor： BRUTSCHE, Joseph ,  DICKINSON, Sara-Jane ,  FRIESS, Bryan ,  NEALIS, Michael

IPC: G06F21/32 ,  G09B7/00 ,  G10L9/08 ,  G10L17/00 ,  H04L29/06 ,  G06F16/636 ,  G06F16/683 ,  G06N20/00 ,  G10L17/22 ,  H04L63/0861

Abstract: Systems and methods of the present invention provide for at least one processor executing program code instructions on a server computer coupled to a network. The program code instructions cause the server computer to receive from a user client an assessment audio file. The instructions also cause the computer to extract a plurality of audio features from the assessment audio file using a voice profile module. In addition, the instructions cause the computer to store the assessment audio file and extracted features in a database. Further, the instructions cause the computer to calculate a candidate confidence score indicating the probability that the assessment audio file is from a common speaker as a previously stored audio file within the database. Lastly, the instructions cause the computer to generate a based on the candidate confidence score.

公开(公告)号：WO99014745A1

公开(公告)日：1999-03-25

申请号：PCT/US1998/011134

申请日：1998-06-02

IPC: G06F12/14 ,  G06F1/00 ,  G06F21/00 ,  G06F21/20 ,  G06F21/24 ,  G10L17/00 ,  H04L9/32 ,  G10L9/08

CPC classification number: G06F21/32 ,  G06F21/83 ,  G06F2221/2141 ,  G06F2221/2145 ,  G10L17/00

Abstract: A processing system that is accessible via a number of speech transmission media. Access to the processing system may be made via a mobile radiotelephone, land line telephone (20), acoustic link (22), or datalink (10). Access to programs, files and data is based upon the communication media and authentification of the user.

Abstract translation: 可通过多个语音传输媒体访问的处理系统。 处理系统的访问可以经由移动无线电话机，陆地线路电话（20），声音链路（22）或数据链路（10）进行。 访问程序，文件和数据是基于通信媒体和用户的身份验证。