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1. 发明授权

US08447443B1 Systems and methods for peak-seeking control 有权
标题翻译：寻峰控制的系统和方法
公开(公告)号：US08447443B1
公开(公告)日：2013-05-21
申请号：US13367990
申请日：2012-02-07
申请人： John J Ryan , Jason L Speyer
发明人： John J Ryan , Jason L Speyer
IPC分类号： G05B19/042 , G06F17/00
CPC分类号： G05B13/042
摘要： A computerized system and method for peak-seeking-control that uses a unique Kalman filter design to optimize a control loop, in real time, to either maximize or minimize a performance function of a physical object (“plant”). The system and method achieves more accurate and efficient peak-seeking-control by using a time-varying Kalman filter to estimate both the performance function gradient (slope) and Hessian (curvature) based on direct position measurements of the plant, and does not rely upon modeling the plant response to persistent excitation. The system and method can be naturally applied in various applications in which plant performance functions have multiple independent parameters, and it does not depend upon frequency separation to distinguish between system dimensions.
摘要翻译：用于峰值寻找控制的计算机化系统和方法，其使用独特的卡尔曼滤波器设计实时优化控制回路，以最大化或最小化物理对象（“工厂”）的性能功能。该系统和方法通过使用时变卡尔曼滤波器基于工厂的直接位置测量来估计性能函数梯度（斜率）和Hessian（曲率）来实现更精确和有效的峰值寻找控制，并且不依赖对植物对持续激发的反应建模。该系统和方法可以自然地应用于各种应用中，其中工厂性能功能具有多个独立参数，并且其不依赖于频率分离以区分系统尺寸。

2. 发明授权

US07619471B2 Class D amplifier with increased efficiency 有权
标题翻译： D类放大器提高了效率
公开(公告)号：US07619471B2
公开(公告)日：2009-11-17
申请号：US11831941
申请日：2007-07-31
申请人： Lance Weston , Tony T Li , John J Ryan
发明人： Lance Weston , Tony T Li , John J Ryan
IPC分类号： H03F3/217
CPC分类号： H03F3/2173 , H03F1/0205 , H03F2200/03 , H03F2200/114 , H03F2200/321 , H03F2200/351
摘要： The present invention is a method of operating a speaker by converting an audio signal to a pulse-width modulated signal that has a plurality of positive pulses and a plurality of negative pulses as a function of the audio signal, then driving an H-bridge circuit interconnected to a speaker, wherein the H-bridge circuit comprises an A-side and a B-side, wherein the A-side comprises a first switching transistor and a second switching transistor, and wherein the B-side comprises a first switching transistor and a second switching transistor. For each positive pulse, the A-side of the H-bridge circuit is driven by pushing the first switching transistor of the A-side while grounding the second switching transistor of the A-side. For each negative pulse, the B-side of the H-bridge circuit is driven by pushing the first switching transistor of the B-side while grounding the second switching transistor of the B-side.
摘要翻译：本发明是一种通过将音频信号转换成具有作为音频信号的函数的多个正脉冲和多个负脉冲的脉冲宽度调制信号来操作扬声器的方法，然后驱动H桥电路互连到扬声器，其中所述H桥电路包括A侧和B侧，其中所述A侧包括第一开关晶体管和第二开关晶体管，并且其中所述B侧包括第一开关晶体管和第二开关晶体管。对于每个正脉冲，通过在A侧的第二开关晶体管接地的同时推动A侧的第一开关晶体管来驱动H桥电路的A侧。对于每个负脉冲，通过在B侧的第二开关晶体管接地的同时推动B侧的第一开关晶体管来驱动H桥电路的B侧。

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