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公开(公告)号：US07366712B2
公开(公告)日：2008-04-29
申请号：US09938322
申请日：2001-08-23
申请人： Liang He , XiaoGang Zhu , Chung Yun Yeung , Jing Yong Zhu , KeFeng Yang , ChuanQuan Xie
发明人： Liang He , XiaoGang Zhu , Chung Yun Yeung , Jing Yong Zhu , KeFeng Yang , ChuanQuan Xie
IPC分类号： G06F17/30
CPC分类号： G06F17/30569 , Y10S707/99933
摘要： A method, apparatus, and gateway allows a variety of client devices to access information from current information providers, and the information is adapted to accommodate the differing formats of the client devices. Speech processing, text-to-speech (TTS), speech feature transmission on heterogeneous networks, quality of service (QoS) support for real-time applications, transcoding, transformation, publish rendering, multimedia contents analysis, and speech coding may be supported.
摘要翻译： 方法，装置和网关允许各种客户端设备从当前信息提供者访问信息，并且该信息适于适应客户端设备的不同格式。 可以支持语音处理，文本到语音（TTS），异构网络上的语音特征传输，对实时应用的服务质量（QoS）支持，代码转换，变换，发布渲染，多媒体内容分析和语音编码。
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公开(公告)号：US07062444B2
公开(公告)日：2006-06-13
申请号：US10057705
申请日：2002-01-24
申请人： Liang He , ChuanQuan Xie , Song Cui
发明人： Liang He , ChuanQuan Xie , Song Cui
IPC分类号： G10L15/00
CPC分类号： G10L15/30 , G10L2015/228
摘要： A comprehensive, practical and efficient architecture for a DSR client and server development platform is disclosed. A system comprising: DSR client module for capturing speech, extracting speech features, interpreting markup content and displaying content; DSR gateway module coupled for communication with the DSR client module, the DSR gateway module for receiving a markup document, interpreting tag elements of the markup document, and dynamically generating grammar from the markup document, and controlling display content navigation by speech recognition; and DSR document server coupled for communication with the DSR gateway module, the DSR document server for processing requests from the DSR gateway module and for producing a markup document in response.
摘要翻译： 披露了一种用于DSR客户端和服务器开发平台的全面，实用和高效的架构。 一种系统，包括：用于捕获语音，提取语音特征，解释标记内容和显示内容的DSR客户端模块; DSR网关模块，用于与DSR客户端模块进行通信，DSR网关模块用于接收标记文档，解释标记文档的标签元素，以及从标记文档动态生成语法，以及通过语音识别来控制显示内容导航; 和DSR文件服务器，用于与DSR网关模块进行通信，DSR文档服务器用于处理来自DSR网关模块的请求并产生响应的标记文档。
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公开(公告)号：US08736240B2
公开(公告)日：2014-05-27
申请号：US13269696
申请日：2011-10-10
IPC分类号： H02M3/158
CPC分类号： H02M3/335 , H02M2001/0096 , Y10T307/516
摘要： A power system has a power converter adapted for converting a first input voltage at an input thereof to a first output voltage at an output thereof, and a hold-up time extension circuit comprising a step-up stage and a step-down stage coupled to each other via a first energy-storage capacitor, where an input of the step-up stage is coupled to the input of the power converter, an output of the step-up stage is coupled to an input of the step-down stage, and an output of the step-down stage is coupled to the input of the power converter. The step-up stage is adapted for converting the first input voltage of the power converter to a second output voltage, and the step-down stage is adapted for converting the second output voltage of the step-up stage to the input voltage of the power converter.
摘要翻译： 电力系统具有功率转换器，其适于将其输入处的第一输入电压转换为其输出处的第一输出电压，以及保持时间延长电路，包括升压级和降压级，耦合到 彼此经由第一储能电容器，其中升压级的输入耦合到功率转换器的输入，升压级的输出耦合到降压级的输入端，并且 降压级的输出耦合到功率转换器的输入端。 升压级适用于将功率转换器的第一输入电压转换为第二输出电压，并且降压级适用于将升压级的第二输出电压转换为功率的输入电压 转换器。
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公开(公告)号：US20130027981A1
公开(公告)日：2013-01-31
申请号：US13269696
申请日：2011-10-10
IPC分类号： H02M3/335
CPC分类号： H02M3/335 , H02M2001/0096 , Y10T307/516
摘要： A power system has a power converter adapted for converting a first input voltage at an input thereof to a first output voltage at an output thereof, and a hold-up time extension circuit comprising a step-up stage and a step-down stage coupled to each other via a first energy-storage capacitor, where an input of the step-up stage is coupled to the input of the power converter, an output of the step-up stage is coupled to an input of the step-down stage, and an output of the step-down stage is coupled to the input of the power converter. The step-up stage is adapted for converting the first input voltage of the power converter to a second output voltage, and the step-down stage is adapted for converting the second output voltage of the step-up stage to the input voltage of the power converter.
摘要翻译： 电力系统具有功率转换器，其适于将其输入处的第一输入电压转换为其输出处的第一输出电压，以及保持时间延长电路，包括升压级和降压级，耦合到 彼此经由第一储能电容器，其中升压级的输入耦合到功率转换器的输入，升压级的输出耦合到降压级的输入端，并且 降压级的输出耦合到功率转换器的输入端。 升压级适用于将功率转换器的第一输入电压转换为第二输出电压，并且降压级适用于将升压级的第二输出电压转换为功率的输入电压 转换器。
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公开(公告)号：US07428490B2
公开(公告)日：2008-09-23
申请号：US10673570
申请日：2003-09-30
IPC分类号： G10L21/02
CPC分类号： G10L21/0208
摘要： A method and system is provided for enhancing an audio signal based on spectral subtraction. The noise power spectrum for each frame of an audio signal is dynamically estimated based on a plurality of signal power spectrum values computed from a corresponding plurality of adjacent frames. An over-subtraction factor is then dynamically computed for each frame based on the noise power spectrum estimated for the frame. The signal power spectrum of the audio signal at each frame is then reduced in accordance with the over-subtraction factor computed for the corresponding frame.
摘要翻译： 提供了一种基于频谱减法来增强音频信号的方法和系统。 基于从相应的多个相邻帧计算的多个信号功率谱值来动态地估计音频信号的每个帧的噪声功率谱。 然后，基于针对帧估计的噪声功率谱，针对每个帧动态地计算过减去因子。 然后根据为相应的帧计算出的过减去因子，减少每个帧处的音频信号的信号功率谱。
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公开(公告)号：US5912995A
公开(公告)日：1999-06-15
申请号：US659725
申请日：1996-06-06
申请人： Liang He
发明人： Liang He
CPC分类号： G06T3/60
摘要： A method which may be implemented in a library routine for performing an image transformation. First, a plurality of groups of bits are selected, with each group being from a different row and the rows being aligned in the same column in an image. Next, a logical operation is performed to set to zero all of the bits in the group except for the designated position of the column to be transformed. Finally, each of the groups or rows are compared to a template, and a single bit indicating the result of such comparison is stored in a result register.
摘要翻译： 可以在用于执行图像变换的库例程中实现的方法。 首先，选择多个比特组，每个组来自不同的行，并且行在图像中的同一列中对齐。 接下来，执行逻辑运算，将除了要变换的列的指定位置之外的组中的所有位设置为零。 最后，将每个组或行与模板进行比较，并且将指示这种比较的结果的单个位存储在结果寄存器中。
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公开(公告)号：US07601835B2
公开(公告)日：2009-10-13
申请号：US11270777
申请日：2005-11-10
申请人： Liang He , Weiping Jiang
发明人： Liang He , Weiping Jiang
IPC分类号： C07D473/32 , C07D473/28 , C07D473/02
CPC分类号： C07D473/32
摘要： Purine derivatives of formula I, substituted at the 9-position, are prepared from a chloro substituted purine starting material, first making an alkyl substitution at the 9-position, then forming the desired esterified side chain, reducing this and hydrogenating the resultant diol prior to addition of alkyl carbonyl groups.
摘要翻译： 在9位取代的式I的嘌呤衍生物由氯取代的嘌呤原料制备，首先在9位进行烷基取代，然后形成所需的酯化侧链，将其还原，然后将所得二醇先氢化 加入烷基羰基。
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公开(公告)号：US20050071156A1
公开(公告)日：2005-03-31
申请号：US10673570
申请日：2003-09-30
CPC分类号： G10L21/0208
摘要： A method and system is provided for enhancing an audio signal based on spectral subtraction. The noise power spectrum for each frame of an audio signal is dynamically estimated based on a plurality of signal power spectrum values computed from a corresponding plurality of adjacent frames. An over-subtraction factor is then dynamically computed for each frame based on the noise power spectrum estimated for the frame. The signal power spectrum of the audio signal at each frame is then reduced in accordance with the over-subtraction factor computed for the corresponding frame.
摘要翻译： 提供了一种基于频谱减法来增强音频信号的方法和系统。 基于从相应的多个相邻帧计算的多个信号功率谱值来动态地估计音频信号的每个帧的噪声功率谱。 然后，基于针对帧估计的噪声功率谱，针对每个帧动态地计算过减去因子。 然后根据为相应的帧计算出的过减去因子，减少每个帧处的音频信号的信号功率谱。
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公开(公告)号：US06721699B2
公开(公告)日：2004-04-13
申请号：US10011660
申请日：2001-11-12
IPC分类号： G10L1104
CPC分类号： G10L25/90 , G10L25/06 , G10L2025/935
摘要： A method and system for Chinese speech pitch extraction is disclosed. The method and system for Chinese speech pitch extraction comprises: pre-computing an anti-bias auto-correlation of a Hamming window function; for at least one frame, saving a first candidate as an unvoiced candidate, and detecting other voiced candidates from the anti-bias auto-correlation function; and calculating a cost value for a pitch path according to a voiced/unvoiced intensity function based on the unvoiced and voiced candidates, saving a predetermined number of least-cost paths, and outputting at least a portion of contiguous frames with low time delay.
摘要翻译： 公开了一种中文语音提取的方法和系统。 中文语音提取的方法和系统包括：预先计算汉明窗函数的反偏相关自相关; 对于至少一个帧，保存作为无声候选的第一候选，以及从所述反偏压自相关函数检测其他有声候选; 以及基于所述无声和有声候选根据有声/无声强度函数计算音调路径的成本值，节省预定数量的最低成本路径，并输出具有低时间延迟的至少一部分连续帧。
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公开(公告)号：US5799265A
公开(公告)日：1998-08-25
申请号：US756030
申请日：1996-11-26
申请人： Liang He
发明人： Liang He
CPC分类号： G06F1/0321
摘要： The present invention pertains to a method and system for generating a sinusoidal signal as a combination of independently generated sinusoidal signals. A sinusoidal signal consisting of M data points per cycle is generated as a combination of P independently generated sinusoidal signals each consisting of M/P data points per cycle. Each independently generated sinusoidal signal is offset by P-1 data points and interleaved according to a prescribed sequence to represent the combined sinusoidal signal. The system of the present invention utilizes a processing unit having the capability of performing a single instruction on multiple data (SIMD) thereby executing multiple operations per cycle. This architecture enables each data point of the P independently generated sinusoidal signals to be generated simultaneously thereby decreasing the computational expense required to generate the sinusoidal signal.
摘要翻译： 本发明涉及用于产生正弦信号作为独立生成的正弦信号的组合的方法和系统。 每个周期由M个数据点组成的正弦信号作为P独立生成的正弦信号的组合产生，每个周期由M / P个数据点组成。 每个独立产生的正弦信号由P-1数据点偏移，并根据规定的顺序进行交织以表示组合的正弦信号。 本发明的系统使用具有对多个数据（SIMD）执行单个指令的能力的处理单元，从而每个周期执行多个操作。 该架构使得P独立生成的正弦信号的每个数据点能够同时产生，从而减少产生正弦信号所需的计算费用。
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