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1. 发明授权

EP0446721B1 Distributed processing memory 失效
标题翻译：分布式处理存储器
公开(公告)号：EP0446721B1
公开(公告)日：2000-12-20
申请号：EP91103080.7
申请日：1991-03-01
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Mahant-Shetti, Shivaling S. , Smith, Derek J. , Pawate, Basavaraj I. , Doddington, George R. , Bean, Warren L. , Harward, Mark G. , Aton, Thomas J.
IPC分类号： G06F12/06 , G06F15/80
CPC分类号： G06F9/3879 , G06F12/0646 , G06F15/7821

2. 发明授权

EP0242743B1 Speech recognition system 失效
标题翻译：语音识别系统
公开(公告)号：EP0242743B1
公开(公告)日：1993-08-04
申请号：EP87105363.3
申请日：1987-04-10
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Fisher, William M. , McMahan, Michael L. , Doddington, George R. , Bocchieri, Enrico L.
IPC分类号： G10L5/06
CPC分类号： G10L15/193

3. 发明公开

EP0124728A1 Voice messaging system with pitch-congruent baseband coding 失效
标题翻译：具有音调一致的基带编码的语音消息系统
公开(公告)号：EP0124728A1
公开(公告)日：1984-11-14
申请号：EP84102850.9
申请日：1984-03-15
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Arjmand, Masud , Doddington, George R.
IPC分类号： G10L9/14
CPC分类号： G10L19/08 , H04B1/667
摘要： An improved voice messaging system using LPC baseband speech coding. In standard LPC-based baseband speech coding techniques, LPC parameters plus a residual signal are transmitted. To save band width, the residual signal is filtered so that only a fraction of its full bandwidth (e.g., the bottom 1 KHz) is transmitted. At the decoding station, this fraction of the residual signal (which is known as the baseband signal) is copied up or otherwise expanded to higher frequencies, to provide the excitation signal which is filtered according to the LPC parameters to provide the reconstituted speech output. However, this tends to produce perceptually significant ringing effects and high frequency distortion in the reconstituted signal.
The present invention uses a variable baseband width, which is adaptively varied, in accordance with the pitch of the input signal, to provide a more appropriate harmonic match in the reconstituted excitation signal. This eliminates the noticeable ringing effect.
摘要翻译：一种改进的使用LPC基带语音编码的语音消息系统。在标准的基于LPC的基带语音编码技术中，传输LPC参数加上残差信号。为了节省频带宽度，对剩余信号进行滤波，以便仅传输其全部带宽的一部分（例如，底部1KHz）。在解码站，剩余信号的这一部分（被称为基带信号）被复制或以其他方式扩展到更高的频率，以提供根据LPC参数滤波的激励信号以提供重构的语音输出。然而，这往往会在重构信号中产生感知上显着的振铃效应和高频失真。本发明使用根据输入信号的音调自适应地变化的可变基带宽度，以在重构的激励信号中提供更合适的谐波匹配。这消除了明显的振铃效应。

4. 发明授权

EP0397399B1 Voice verification circuit for validating the identity of telephone calling card customers 失效
标题翻译：检查电话信用卡的用户的身份语音验证设备
公开(公告)号：EP0397399B1
公开(公告)日：1997-08-06
申请号：EP90304828.8
申请日：1990-05-03
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Naik, Jayant M. , Doddington, George R. , Netsch, Lorin P.
IPC分类号： G10L5/06
CPC分类号： G10L17/02 , G10L17/24

5. 发明公开

EP0501631A3 Temporal decorrelation method for robust speaker verification 失效
标题翻译：用于强大的扬声器验证的时间装饰方法
公开(公告)号：EP0501631A3
公开(公告)日：1993-05-26
申请号：EP92301156.3
申请日：1992-02-12
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Netsch, Lorin P. , Doddington, George R.
IPC分类号： G10L5/06 , G10L9/16 , G10L7/08 , G10L9/06
CPC分类号： G10L17/02 , G10L17/20
摘要： A system and method for automated temporal decorrelation of speaker voice verification is shown including a collector (210) for receiving speech inputs from an unknown speaker claiming a specific identity, a word-level speech feature calculator (220) for generating word-level speech feature vectors from such speech inputs, word-level speech feature storage (170) for storing word-level speech feature vectors known to belong to a speaker with the specific identity, a word-level vector scorer (230) to calculate a similarity score between the word-level speech feature vectors received from the unknown speaker with those received from the word-level speech feature storage, and speaker verification decision circuitry (240) for determining, based on the similarity score, whether the unknown speaker's identity is the same as that claimed. The word-level vector scorer further includes concatenation circuitry as well as a word-specific orthogonalizing linear transformer (160-Fig. 4b; 380-Fig. 7). Other systems and methods are also disclosed.

6. 发明公开

EP0397399A2 Voice verification circuit for validating the identity of telephone calling card customers 失效
标题翻译： Sprachverifizierungsinrichtung zurPrüfungderIdentitätdes Benutzers einer Telefonkreditkarte。
公开(公告)号：EP0397399A2
公开(公告)日：1990-11-14
申请号：EP90304828.8
申请日：1990-05-03
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Naik, Jayant M. , Doddington, George R. , Netsch, Lorin P.
IPC分类号： G10L5/06
CPC分类号： G10L17/02 , G10L17/24
摘要： A speaker verification system receives input speech from a speaker of unknown identity. The speech (12, 14) undergoes LPC analysis and trangformation to maximize separability between true speakers and impostors when compared (16) to reference speech parameters which have been similarly transformed. The transformation incorporated a "inter-class" covariance matrix of successful impostors within a database.
摘要翻译：扬声器验证系统从未知身份的扬声器接收输入语音。演讲（12,14）进行LPC分析和转换，以便在与已经类似转换的参考语音参数进行比较（16）时使真实的扬声器和冒牌者之间的分离性最大化。该转换在数据库中引入了成功的冒名顶替者的“类间”协方差矩阵。

7. 发明公开

EP0302663A3 Low cost speech recognition system and method 失效
标题翻译：低成本语音识别系统和方法
公开(公告)号：EP0302663A3
公开(公告)日：1989-10-11
申请号：EP88306967.6
申请日：1988-07-28
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Doddington, George R. , Rajasekaran, Periagaram K. , McMahan, Michael L. , Anderson, Wallace
IPC分类号： G10L5/06
CPC分类号： G10L15/00
摘要： A low cost speech recognition system generates frames of received speech having binary feature components. The received speech frames are compared (18) with reference templates (22) , and error values representing the difference between the received speech and the reference templates (22) are generated. At the end of an utterance, if one template resulted in a sufficiently small error value, the word represented by that template is selected (26) as the recognized word.

8. 发明公开

EP0140249A1 Speech analysis/synthesis with energy normalization 失效
标题翻译： Sprachanalyse und Synthese mit Energienormalisierung。
公开(公告)号：EP0140249A1
公开(公告)日：1985-05-08
申请号：EP84112266.6
申请日：1984-10-12
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Doddington, George R. , Papamichalis, Panos E.
IPC分类号： G10L9/18
CPC分类号： G10L25/78 , G10L21/0232 , G10L21/0364 , G10L2025/786
摘要： Energy normalization in speech synthesis systems is achieved by a look-ahead adaptive normalization procedure, wherein energy is adaptively tracked, and the adaptive energy-tracking value is used to normalize a much earlier frame's energy value.
In another aspect, silence suppression in speech synthesis systems is achieved by detecting and processing only segments of voice activity. A segment is classified as "speech" if the energy of the signal is greater than an adaptively adjusted threshold. The adaptively adjusted threshold is preferably defined as the maximum of scaled values of two separate envelope parameters, which both track the variation in energy over the sequence of frames of speech data. One contour is a slow-rising fast-falling value, which is updated only during unvoiced speech frames, and therefore tracks a lower envelope of the energy contour. This parameter in effect tracks an ambient noise level. The other parameter is a fast-rising slow-falling parameter, which is updated only during voiced speech frames, and thus tracks an upper envelope of the energy contour. (This in effect tracks the average speech level.)
摘要翻译：语音合成系统中的能量归一化通过前瞻自适应归一化过程来实现，其中自适应地跟踪能量，并且使用自适应能量跟踪值来对较早的帧的能量值进行归一化。在另一方面，语音合成系统中的静音抑制通过仅检测和处理语音活动的部分来实现。如果信号的能量大于自适应调整的阈值，则将段分类为“语音”。自适应调整的阈值优选地被定义为两个分离的包络参数的缩放值的最大值，两个分离的包络参数既跟踪语音数据帧序列上的能量变化。一个轮廓是缓慢上升的快速下降值，其仅在清音语音帧期间更新，并且因此跟踪能量轮廓的较低包络。该参数实际上跟踪环境噪声水平。另一个参数是快速上升的慢下降参数，其仅在有声语音帧期间被更新，并且因此跟踪能量轮廓的上部包络。（这实际上跟踪平均语音级别。）

9. 发明公开

EP0127729A1 Voice messaging system with unified pitch and voice tracking 失效
标题翻译：声码器使用单个设备用于声/无声判定的基频和决心。
公开(公告)号：EP0127729A1
公开(公告)日：1984-12-12
申请号：EP84102115.7
申请日：1984-02-29
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Doddington, George R. , Secrest, Bruce G.
IPC分类号： G10L5/00
CPC分类号： G10L19/06 , G10L25/93
摘要： A voice messaging system, wherein linear predictive coding (LPC) parameters, pitch, and preferably other excitation information is derived from a human voice input, encoded, and transmitted and/or stored, to be called up laterto provide a speech output which is nearly identical to the original speech input.
The residual signal derived from LPC estimation is adaptively filtered, and then is used as the input to a conventional pitch estimation procedure. The adaptive filtering step uses the first reflection coefficient (k 1 ) to realize a simple filter (e.g., A(z) = (1 - k 1 z-1 )-1). This filter removes high frequency noise from the residual signal during voice periods, but does not remove the high frequency energy which contains important information during the unvoiced periods of speech.
Preferably the above preprocessing technique is also combined with a postprocessing technique, wherein dynamic programming is used to optimally track pitch and voicing through successive frames.
摘要翻译：一个话音消息传送系统，worin线性预测编码（LPC）参数，音调，和优选其它激励信息是从人的语音输入得出，编码，和反式mitted和/或存储，稍后调用，以提供一个语音输出所有这些是几乎等同于原始性的语音。 ... 从LPC估计得到的残差信号进行自适应滤波，然后被用作输入到常规的音调估计程序。自适应滤波步骤使用第一反射系数（K1）以实现一个简单的过滤器（例如，A（Z）=（1 - K 1 Z-1）-1）。该过滤器去除在语音阶段的残差信号的高频噪声，但不去除高频能量，包含在语音的无声时期的重要信息。 ... 优选地，上述预处理技术因此与后处理技术，worin动态编程用于通过连续的帧到OPTI马利轨道间距和清浊组合。

10. 发明授权

EP0450367B1 Speech analysis method and apparatus 失效
标题翻译：语音分析的方法和装置
公开(公告)号：EP0450367B1
公开(公告)日：2000-01-05
申请号：EP91104028.5
申请日：1991-03-15
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Doddington, George R.
IPC分类号： G10L5/06 , G10L3/00
CPC分类号： G10L15/10

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