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公开(公告)号：US20220282501A1
公开(公告)日：2022-09-08
申请号：US17681076
申请日：2022-02-25
摘要： A work platform system having a first work platform. The first work platform having a first hook assembly and a first latch assembly. The system having a second work platform. The second work platform having a second hook assembly and a second latch assembly. The first work platform locked to the second work platform through the first hook assembly engaging with the second latch assembly and the first hook assembly in the use position. A method for using a work platform system. A method for producing a work platform.
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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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10.发明授权Self-cleaning plasticizing venting and extruding apparatus by co-rotating non-twin multi-screws and method thereof 有权通过同向旋转的非双螺杆多螺杆自清洁塑化排气和挤出装置及其方法公开(公告)号：US09174380B2
公开(公告)日：2015-11-03
申请号：US13703894
申请日：2011-06-09
申请人： Baiping Xu , Meigui Wang , Liang He , Ping Kong , Jinwei Chen
发明人： Baiping Xu , Meigui Wang , Liang He , Ping Kong , Jinwei Chen
CPC分类号： B29C47/0881 , B29C47/0011 , B29C47/0861 , B29C47/40 , B29C47/402 , B29C47/406 , B29C47/408 , B29C47/60 , B29C47/62 , B29C47/625 , B29C47/662 , B29C47/663 , B29C47/765 , B29C47/767
摘要： A self-cleaning plasticizing venting and extruding apparatus by co-rotating non-twin multi-screws and a method thereof are provided, said apparatus comprises a screw mechanism, barrel, feeding port, venting port, discharging port, and driving mechanism. Said screw mechanism comprises non-uniform central screw and lateral screws, the axis of the central screw coincides with the barrel, and the lateral screws are provided on both sides of the central screw and engaged with the central screw; the contour lines of the threads of said central screw and said lateral screws are tangent to the inner wall of the barrel; and said driving mechanism is connected to the central screw and lateral screws. Each screw-uses an asymmetrical flow channel shape, so the flow space is asymmetric, and the compounding intensity and effectiveness enhanced. The dispersion and mixing effects are excellent, generating a self-cleaning effect. The system is suitable for high yield nano-material processing.
摘要翻译： 提供了一种通过非旋转非双重多螺杆的自清洁塑化排气和挤出装置及其方法，所述装置包括螺杆机构，筒体，进料口，通气口，排出口和驱动机构。 所述螺杆机构包括不均匀的中心螺钉和侧向螺钉，中心螺杆的轴线与筒体重合，侧向螺钉设置在中心螺钉的两侧并与中心螺钉接合; 所述中心螺杆和所述侧向螺钉的螺纹的轮廓线与筒的内壁相切; 并且所述驱动机构连接到中心螺钉和侧向螺钉。 每个螺杆使用不对称的流动通道形状，因此流动空间是不对称的，并且复合强度和有效性得到提高。 分散混合效果优异，产生自清洁效果。 该系统适用于高产量的纳米材料加工。
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