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27 条记录 (耗时 0.051 秒)

    Method and system for identifying rare-event failure rates
    3.
    发明授权
    Method and system for identifying rare-event failure rates 有权
    识别罕见事件故障率的方法和系统

    公开(公告)号：US09483602B2

    公开(公告)日：2016-11-01

    申请号：US13881866

    申请日：2011-10-27

    申请人： Trent Lorne McConaghy ,  Joel Cooper ,  Jeffrey Dyck ,  Kyle Fisher

    发明人： Trent Lorne McConaghy ,  Joel Cooper ,  Jeffrey Dyck ,  Kyle Fisher

    IPC分类号： G06F17/50 ,  G06G7/62

    CPC分类号： G06F17/5081 ,  G06F17/5009 ,  G06F17/5022 ,  G06F17/5036 ,  G06F2217/10

    摘要： A method and system to estimate failure rates in designs. N Monte Carlo samples are drawn from the random distribution that describes process variation in the design. A subset of these samples is selected, and that subset of Ninit samples are simulated (with a circuit simulator) to measure a performance value for each sample. A model is constructed, using the values of the Ninit process points as training inputs, and the corresponding Ninit performance values as training outputs. The candidate Monte Carlo samples are from the N Monte Carlo samples that have not yet been simulated. Each candidate is simulated on the model to get predicted performance values, and the samples are ordered in ascending (or descending) order of the predicted performance values. Simulation of candidates samples is then begun, in that order. The sampling and simulation will stops once there is sufficient confidence that all failures are found.

    摘要翻译： 一种估计设计失败率的方法和系统。 N蒙特卡洛样本是从设计中描述过程变化的随机分布中得出的。 选择这些样本的子集，并且模拟Ninit样本的子集（使用电路模拟器）来测量每个样本的性能值。 使用Ninit过程点的值作为训练输入，并将相应的Ninit性能值作为训练输出构建一个模型。 候选蒙特卡洛样本来自尚未模拟的N蒙特卡罗样本。 在模型上模拟每个候选人以获得预测的性能值，并且以预测的性能值的升序（或降序）顺序排列样本。 然后按照顺序开始模拟候选样本。 一旦有足够的信心发现所有故障，采样和仿真将停止。

    Level dependent bass management
    7.
    发明申请
    Level dependent bass management 有权
    水平依赖低音管理

    公开(公告)号：US20070003075A1

    公开(公告)日：2007-01-04

    申请号：US11238338

    申请日：2005-09-29

    申请人： Joel Cooper ,  John Melanson ,  Pu Liu

    发明人： Joel Cooper ,  John Melanson ,  Pu Liu

    IPC分类号： H03G5/00

    CPC分类号： H04S3/00

    摘要： A signal processing system includes a level dependent bass management system. The level dependent bass management system utilizes audio input signal level information to apply at least one of multiple, available bass management solutions to generate one or more output signals from the audio input signal. In at least one embodiment, initially the level dependent bass management system boosts components of the audio input signal in the low frequency range by an amount sufficient to at least partially compensate for low frequency attenuation of the first speaker without exceeding one or more acceptable limitations of the signal processing system. If boosting alone cannot completely compensate for low frequency attenuation of the first speaker without exceeding one or more acceptable limitations of the signal processing system, the level dependent bass management system processes the audio input signal using an alternate low frequency management solution.

    摘要翻译： 信号处理系统包括一个依赖于电平的低音管理系统。 电平依赖低音管理系统利用音频输入信号电平信息来应用多个可用低音管理解决方案中的至少一个以从音频输入信号产生一个或多个输出信号。 在至少一个实施例中，电平依赖低音管理系统最初将低频范围内的音频输入信号的分量提升足以至少部分地补偿第一扬声器的低频衰减的量，而不超过一个或多个可接受的限制 信号处理系统。 如果单独升压不能完全补偿第一扬声器的低频衰减，而不超过信号处理系统的一个或多个可接受的限制，则依赖于电平的低音管理系统使用替代的低频管理解决方案处理音频输入信号。

    Technique for subwoofer distance measurement
    9.
    发明申请
    Technique for subwoofer distance measurement 有权
    低音炮距离测量技术

    公开(公告)号：US20060062397A1

    公开(公告)日：2006-03-23

    申请号：US11002102

    申请日：2004-12-03

    申请人： Joel Cooper

    发明人： Joel Cooper

    IPC分类号： H04R29/00 ,  G01C25/00 ,  G06F19/00

    CPC分类号： H04S7/301 ,  G01S11/14

    摘要： The present invention automatically corrects for subwoofer or other speaker crossover settings or other parameters by providing an adjustable factor passed upon not only pulse location, but on pulse width. In FIG. 2, as the low-pass frequency of the subwoofer is decreased, either by the crossover setting or the physical design of the subwoofer, the impulse response is shifted to the right and the width of the impulse increases. By relating the adjustment factor to the width of the impulse, the accuracy of the computed distance is greatly increased. The relation may be found doing a simple polynomial curve fitting to empirical data from several subwoofers at various crossover settings and distances, storing that data, and then measuring pulse location and width of the actual subwoofer during the setup routine, and adjusting the distance (delay) calculations accordingly.

    摘要翻译： 本发明通过提供不仅脉冲位置传递的可调节因数而且脉冲宽度来自动校正重低音扬声器或其他扬声器交叉设置或其他参数。 在图 如图2所示，由于低音炮的低通频率通过交叉设置或超低音扬声器的物理设计降低，脉冲响应向右移动，脉冲宽度增加。 通过将调整因子与脉冲宽度相关联，计算出的距离的精度大大增加。 可以找到这样的关系：在各种交叉设置和距离处，从几个低音炮的经验数据拟合简单的多项式曲线，存储该数据，然后在设置程序期间测量实际重低音扬声器的脉冲位置和宽度，并调整距离（延迟 ）相应计算。