SPEECH RECOGNITION SYSTEM AND METHOD WITH CEPSTRAL NOISE SUBTRACTION
    61.
    发明申请
    SPEECH RECOGNITION SYSTEM AND METHOD WITH CEPSTRAL NOISE SUBTRACTION 有权
    语音识别系统和方法与CEPSTRAL NOISE提取

    公开(公告)号:US20090157400A1

    公开(公告)日:2009-06-18

    申请号:US12243303

    申请日:2008-10-01

    申请人: Shih-Ming Huang

    发明人: Shih-Ming Huang

    IPC分类号: G10L15/00

    摘要: The invention relates to a speech recognition system and method with cepstral noise subtraction. The speech recognition system and method utilize a first scalar coefficient, a second scalar coefficient, and a determining condition to limit the process for the cepstral feature vector, so as to avoid excessive enhancement or subtraction in the cepstral feature vector, so that the operation of the cepstral feature vector is performed properly to improve the anti-noise ability in speech recognition. Furthermore, the speech recognition system and method can be applied in any environment, and have a low complexity and can be easily integrated into other systems, so as to provide the user with a more reliable and stable speech recognition result.

    摘要翻译: 本发明涉及一种具有倒频噪声减法的语音识别系统和方法。 语音识别系统和方法利用第一标量系数,第二标量系数和确定条件来限制倒谱特征向量的处理,以避免倒频谱特征向量中的过度增强或减法,从而使 倒频特征矢量被正确地进行以提高语音识别中的抗噪声能力。 此外,语音识别系统和方法可以在任何环境中应用,并且具有低复杂度并且可以容易地集成到其他系统中,从而为用户提供更可靠和稳定的语音识别结果。

    Stator structure
    62.
    发明授权
    Stator structure 有权
    定子结构

    公开(公告)号:US07479724B2

    公开(公告)日:2009-01-20

    申请号:US11714258

    申请日:2007-03-06

    IPC分类号: H02K1/00 H02K1/12

    CPC分类号: H02K1/145

    摘要: A stator structure includes at least one stator part having a single rolled steel sheet to serve as a waist post with a gap. A first stator part includes a first engaging portion. A second stator part includes a second engaging portion corresponding to the first engaging portion. The first and second stator parts are of the same material. When the first stator part is assembled with the second stator part, the first engaging portion is engaged with the second engaging portion so as to form the stator structure with a waist post.

    摘要翻译: 定子结构包括具有单个轧制钢板的至少一个定子部件,用作具有间隙的腰部柱。 第一定子部分包括第一接合部分。 第二定子部分包括对应于第一接合部分的第二接合部分。 第一和第二定子部件具有相同的材料。 当第一定子部件与第二定子部件组装时,第一接合部分与第二接合部分接合,以形成具有腰部柱的定子结构。

    Brushless DC motor and magnetic compensation method thereof
    63.
    发明授权
    Brushless DC motor and magnetic compensation method thereof 有权
    无刷直流电动机及其磁补偿方法

    公开(公告)号:US07439642B2

    公开(公告)日:2008-10-21

    申请号:US11295527

    申请日:2005-12-07

    IPC分类号: H02K11/00

    CPC分类号: H02K29/08

    摘要: A magnetic compensation method for a brushless DC motor. The method of magnetic compensation for the motor provides the magnetic element disposed adjacent to the magnetic sensor to compensate the magnetic sensor for an unnecessary magnetic interference, so that the magnetic sensor provides a regular voltage difference to drive the motor.

    摘要翻译: 一种无刷直流电机的磁补偿方法。 用于电动机的磁补偿方法提供了与磁传感器相邻设置的磁性元件,以补偿磁传感器的不必要的磁干扰,使得磁传感器提供规则的电压差来驱动电动机。

    Permanent magnet rotary structure of electric machine
    64.
    发明申请
    Permanent magnet rotary structure of electric machine 有权
    电机永磁旋转结构

    公开(公告)号:US20080157619A1

    公开(公告)日:2008-07-03

    申请号:US11827934

    申请日:2007-07-13

    IPC分类号: H02K21/22

    CPC分类号: H02K29/03 H02K1/2786

    摘要: A permanent magnet motor is provided. The permanent magnet motor includes a stator having a stator shaft having an outer surface, K salient teeth formed upon the outer surface, and K winding slots formed among the K salient teeth, and a rotor having a first inner surface facing the outer surface, and P pairs of permanent magnets formed on the first inner surface, each of which has a second inner surface facing the outer surface and at least a groove formed on the second inner surface to reduce a cogging torque.

    摘要翻译: 提供永磁电动机。 所述永磁电动机包括定子,所述定子具有外表面的定子轴,形成在所述外表面上的K凸齿,以及形成在所述K凸齿之间的K绕组槽,以及具有面向所述外表面的第一内表面的转子, P对永磁体,其形成在第一内表面上,每对具有面向外表面的第二内表面和至少形成在第二内表面上的凹槽以减少齿槽转矩。

    Method for starting single phase BLDCM having asymmetrical air gap
    65.
    发明授权
    Method for starting single phase BLDCM having asymmetrical air gap 有权
    启动具有不对称气隙的单相BLDCM的方法

    公开(公告)号:US07345440B2

    公开(公告)日:2008-03-18

    申请号:US11284167

    申请日:2005-11-21

    IPC分类号: H02P1/00

    摘要: A method for starting a motor having a stator, a rotor, a winding and an asymmetrical air gap is accomplished using several steps. The steps include: (a) providing the motor at standstill; (b) exciting the winding for a specific time period with a current impulse having a first amplitude to obtain a first specific position of the rotor with respect to the stator; (c) decreasing the first amplitude down to a second amplitude gradually by a controller to make the rotor to be positioned at a second specific position with respect to the stator after the specific time period, wherein the second amplitude is one of zero ampere and a specific value close to zero ampere, and the rotor is rotating close to the second specific position with an almost zero rotating speed when the second amplitude is reached.

    摘要翻译: 用于启动具有定子,转子,绕组和不对称气隙的电动机的方法通过几个步骤完成。 步骤包括:(a)停止提供电机; (b)用具有第一幅度的电流脉冲激励所述绕组达特定时间段以获得所述转子相对于所述定子的第一特定位置; (c)通过控制器逐渐将第一振幅降低到第二幅度,使得转子在特定时间段之后相对于定子定位在第二特定位置,其中第二幅度是零安培和 特定值接近零安培,并且当达到第二幅度时,转子以几乎为零的转速旋转接近第二特定位置。

    Motor and magnetic bearing assembly thereof
    66.
    发明申请
    Motor and magnetic bearing assembly thereof 审中-公开
    电动机和磁轴承组件

    公开(公告)号:US20070262669A1

    公开(公告)日:2007-11-15

    申请号:US11826965

    申请日:2007-07-19

    IPC分类号: H02K7/09

    摘要: A motor includes a stator, a rotor, and a plurality of blades. The stator includes a stator base with an opening, a first magnetic structure disposed at a bottom of the opening, a magnetic pole disposed on the stator base, and a second magnetic structure disposed at a top of the magnetic pole. The rotor, coupled to the stator, includes a hub, a shaft, a third magnetic structure disposed at the hub and encircled one en of the shaft and corresponded to the first magnetic structure, and a fourth magnetic structure disposed at the hub without contacting the second magnetic structure. The blades encircle the rotor. The first and third magnetic structures attract the second and the fourth magnetic structures, respectively.

    摘要翻译: 电动机包括定子,转子和多个叶片。 定子包括具有开口的定子基座,设置在开口底部的第一磁性结构,设置在定子基座上的磁极和设置在磁极顶部的第二磁性结构。 联接到定子的转子包括轮毂,轴,设置在轮毂处的第三磁性结构,并且包围轴的一个并对应于第一磁性结构,以及设置在轮毂处的第四磁性结构,而不接触 第二磁结构。 叶片环绕转子。 第一和第三磁结构分别吸引第二和第四磁结构。

    Starting method for Hall-less single-phase BLDCM
    67.
    发明授权
    Starting method for Hall-less single-phase BLDCM 有权
    无霍尔单相BLDCM的启动方法

    公开(公告)号:US07242160B2

    公开(公告)日:2007-07-10

    申请号:US11284018

    申请日:2005-11-21

    IPC分类号: H02K21/00

    CPC分类号: H02P6/20 H02P6/185 H02P6/26

    摘要: The methods for starting a Hall-less single-phase BLDCM having an asymmetrical air gap are proposed. The provided methods are employed to input a specific amount of current impulse and stop the current impulse at a specific time such that the rotor of the single-phase BLDCM having an asymmetrical air gap can be realized to rotate in the pre-determined direction through one of the cogging torque and the rotor inertia after that specific time so as to accomplish the normal starting of a motor without the Hall-effect sensor.

    摘要翻译: 提出了启动具有不对称气隙的无霍尔单相BLDCM的方法。 所提供的方法用于输入特定量的电流脉冲并在特定时间停止电流脉冲,使得具有不对称气隙的单相BLDCM的转子可以实现为沿预定方向旋转通过一个 的齿槽转矩和转子惯性之间的差别,以便在没有霍尔效应传感器的情况下实现马达的正常启动。

    Fan, motor and stator structure thereof

    公开(公告)号:US20060255681A1

    公开(公告)日:2006-11-16

    申请号:US11363408

    申请日:2006-02-28

    IPC分类号: H02K1/12

    摘要: A stator structure of a motor includes a first magnetic substrate, a second magnetic substrate and a plurality of coil units. An outer profile of the first magnetic substrate has a plurality of first protruding parts, and an outer profile of the second magnetic substrate has a plurality of second protruding parts. The first magnetic substrate and the second magnetic substrate are correspondingly disposed. The coil units disposed between the first magnetic substrate and the second magnetic substrate respectively have a coil wound around a central axis of the coil unit, and at least one magnetically conductive element disposed within the coil.

    Adaptive pulse allocation mechanism for linear-prediction based analysis-by-synthesis coders
    69.
    发明申请
    Adaptive pulse allocation mechanism for linear-prediction based analysis-by-synthesis coders 审中-公开
    基于线性预测的自适应脉冲分配机制

    公开(公告)号:US20060235681A1

    公开(公告)日:2006-10-19

    申请号:US11272773

    申请日:2005-11-15

    IPC分类号: G10L19/12

    CPC分类号: G10L19/12

    摘要: A scheme of allocating variable pulses for each frame is proposed to reduce the bit-rate of LP based AbS coders while maintaining the same speech quality. Since speech signal is not stationary, the required pulse count in a speech coder should be variable frame by frame. In this patent the optimal pulse count allocation is provided based on criterion of perceptual distortion analysis. The method comprises receiving source speech data and generating temporary encoded data according to the source speech data, and synthesized speech data according to the temporary encoded data, and adjusting the fixed codebook pulse allocation in temporary encoded data to a minimum required pulse count according to the perceptual disturbance values between the synthesized speech data and the source speech data, and outputting final encoded data accordingly.

    摘要翻译: 提出了为每个帧分配可变脉冲的方案,以在保持相同语音质量的同时降低基于LP的AbS编码器的比特率。 由于语音信号不稳定,语音编码器中所需的脉冲计数应逐帧变化。 在该专利中,基于感知失真分析的准则提供了最佳脉冲计数分配。 该方法包括接收源语音数据并根据源语音数据产生临时编码数据,并根据临时编码数据合成语音数据,并根据临时编码数据将临时编码数据中的固定码本脉冲分配调整到最小所需脉冲数 合成语音数据和源语音数据之间的感知干扰值,并相应地输出最终编码数据。

    Method and circuit for controlling sensorless single-phase BLDCM
    70.
    发明申请
    Method and circuit for controlling sensorless single-phase BLDCM 失效
    用于控制无传感器单相BLDCM的方法和电路

    公开(公告)号:US20060214611A1

    公开(公告)日:2006-09-28

    申请号:US11328975

    申请日:2006-01-10

    IPC分类号: H02P7/06

    CPC分类号: H02P6/182

    摘要: The method and circuit for controlling a sensorless single-phase BLDCM having a stator with a winding are proposed. The provided controlling circuit includes a power supply circuit, an inverter coupled to the winding and the power supply circuit, a BEMF detecting circuit coupled to the winding and the inverter and measuring a BEMF of the winding, and a controller coupled to the power supply circuit, the inverter and the BEMF detecting circuit and analyzing a status of the BEMF to control the BLDCM accordingly. The provided method is based on the motor winding time-sharing theory, and the controller controls the inverter to make the winding used as a driving element with loading current when the absolute value of the BEMF is relatively large and as a sensing element when the absolute value of the BEMF is relatively small.

    摘要翻译: 提出了一种用于控制具有带绕组的定子的无传感器单相BLDCM的方法和电路。 所提供的控制电路包括电源电路,耦合到绕组和电源电路的反相器,耦合到绕组和逆变器并测量绕组的BEMF的BEMF检测电路,以及耦合到电源电路的控制器 ,逆变器和BEMF检测电路,并分析BEMF的状态以相应地控制BLDCM。 所提供的方法是基于电机绕组分时理论,控制器控制逆变器使绕组用作具有负载电流的驱动元件,当BEMF的绝对值相对较大时,作为传感元件,当绝对值 BEMF的价值相对较小。