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1.发明授权System and method of implementing variable loop gain in an optical wireless link based on distance 有权基于距离的光无线链路实现可变环路增益的系统和方法公开(公告)号：US07215888B2
公开(公告)日：2007-05-08
申请号：US10103401
申请日：2002-03-21
IPC分类号： H04B10/00
CPC分类号： H04B10/1141
摘要： A system and method of varying the control loop gain of an optical wireless communication link between a transmitting station and a receiving station as an inverse function of distance between the transmitting station and the receiving station to allow the optical wireless communication link to be used reliably over a wide range of distances.
摘要翻译： 将发送站和接收站之间的光无线通信链路的控制环路增益改变为发送站与接收站之间的距离的反向函数以允许光无线通信链路可靠地使用的系统和方法 距离范围很广。
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公开(公告)号：US08760081B2
公开(公告)日：2014-06-24
申请号：US11552697
申请日：2006-10-25
申请人： Mark D. Hagen , Eric G. Oettinger
发明人： Mark D. Hagen , Eric G. Oettinger
IPC分类号： H05B37/02
CPC分类号： H05B41/2828 , H05B41/2824 , H05B41/382
摘要： Various systems and methods for LCD backlight control are disclosed herein. For example, some embodiments of the present invention provide an LCD backlight circuit with an analog inverter circuit that provides a drive voltage to a lamp. A current traversing the lamp is sensed and provided to a digital control circuit. Based on the sensed current, the digital control circuit generates a control signal that is fed back to the analog inverter circuit. In some cases, the digital control circuit is used to cause a gradual increase in voltage applied to the lamp to achieve ignition of the lamp. In other cases, the digital control is used to provide a pre-distorted sine wave that attenuates one or more harmonics introduced into the system by the non-linearities of the lamp.
摘要翻译： 本文公开了用于LCD背光控制的各种系统和方法。 例如，本发明的一些实施例提供了具有向灯提供驱动电压的模拟反相器电路的LCD背光电路。 检测到穿过灯的电流并将其提供给数字控制电路。 基于感测电流，数字控制电路产生反馈到模拟反相器电路的控制信号。 在一些情况下，数字控制电路用于使灯施加的电压逐渐增加以实现灯的点燃。 在其他情况下，数字控制用于提供预失真的正弦波，其通过灯的非线性衰减引入到系统中的一个或多个谐波。
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3.发明授权公开(公告)号：US06714338B2
公开(公告)日：2004-03-30
申请号：US10146758
申请日：2002-05-16
IPC分类号： G02B2600
CPC分类号： G02B26/0833
摘要： A technique that reduces or eliminates the non-linearities associated with the internal feedback sensor used in a micro-electro-mechanical mirror assembly. Using the relatively linear response of the mirror positioning motor, associated driver electronics, and the mirror itself, a calibration is performed that compensates for the internal feedback sensor non-linearity. An expected position can then be calculated simply by multiplying the gain of the system by the output, due to the good inherent linearity in the system. The calibration will compare measured versus expected position criteria for a predefined set of constant outputs. The data will form a look-up table that will be used to correct for the sensor non-linearities.
摘要翻译： 减少或消除与微机电反射镜组件中使用的内部反馈传感器相关联的非线性的技术。 使用反射镜定位电动机，相关联的驱动器电子装置和镜子本身的相对线性的响应，执行补偿内部反馈传感器非线性的校准。 由于系统内部线性良好，所以可以简单地通过将系统的增益乘以输出来计算预期位置。 校准将比较预定义的一组常数输出的测量与预期位置标准。 数据将形成一个查找表，用于校正传感器的非线性。
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4.发明授权Disk drive with seek profile selection based on a queued vs. non-queued environment 有权基于排队和非排队环境的磁盘驱动器，具有搜索配置文件选择公开(公告)号：US06195222B1
公开(公告)日：2001-02-27
申请号：US09186786
申请日：1998-11-04
IPC分类号： G11B5596
CPC分类号： G11B5/5547
摘要： A disk drive and method of optimizing data access time by selecting a seek profile and/or settle criteria based on a queued or non-queued environment. The disk drive includes an actuator and a servo system, wherein the servo system is directed to move the actuator as a result of an input/output command received from a host by an interface processor. The disk drive may execute the input/output commands in a queued or non-queued environment. The servo system commands the actuator to perform a seek using a seek profile and defines settling criteria for the seek operation. The seek profile includes an acceleration profile and a deceleration profile. The method includes the step of providing a queued seek profile and a queued settling criteria for a seek used to position the actuator to execute a command in a queued environment. A non-queued seek profile and a non-queued settling criteria are defined for a seek used to position the actuator to execute a command in a non-queued environment, the non-queued seek profile being different than the queued seek profile. Seeks are performed using the queued seek profile and settling criteria and the non-queued seek profile and settling criteria. Optionally, the queued settling criteria is different than the non-queued settling criteria.
摘要翻译： 一种磁盘驱动器和通过基于排队或未排队的环境来选择搜索简档和/或结算标准来优化数据访问时间的方法。 磁盘驱动器包括致动器和伺服系统，其中伺服系统被引导为通过接口处理器从主机接收的输入/输出命令的结果来移动致动器。 磁盘驱动器可以在排队或未排队的环境中执行输入/输出命令。 伺服系统命令致动器使用寻道轮廓执行寻道，并定义寻道操作的稳定准则。 寻道曲线包括加速度曲线和减速曲线。 该方法包括提供排队的搜索简档和排队的建立标准的步骤，用于用于定位致动器以在排队的环境中执行命令的搜索的排队的建立准则。 对于用于定位致动器以在非排队环境中执行命令的搜索来定义非排队寻求简档和非排队的建立标准，非排队寻找简档不同于排队的搜索简档。 搜索使用排队的查询简档和结算标准以及非排队查找配置文件和结算标准来执行。 可选地，排队的结算标准与非排队的结算标准不同。
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5.发明授权公开(公告)号：US06708082B2
公开(公告)日：2004-03-16
申请号：US10162482
申请日：2002-06-03
IPC分类号： G05B1500
CPC分类号： G02B26/0841
摘要： A method of adjusting a MEMS mirror control system is provided to calibrate a MEMS mirror control system to a particular MEMS mirror in a fashion that optimizes MEMS mirror control loop performance. This calibration is implemented by measuring the gain and resonant frequency of the particular MEMS mirror, and adjusting one or more of the parameters used in the implementation of a PID controller, a state estimator, and a feed forward component used to perform seeks.
摘要翻译： 提供了一种调整MEMS镜面控制系统的方法，以优化MEMS镜面控制回路性能的方式将MEMS反射镜控制系统校准到特定的MEMS反射镜。 该校准通过测量特定MEMS镜的增益和谐振频率以及调整用于执行PID控制器，状态估计器和用于执行寻找的前馈分量的一个或多个参数来实现。
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6.发明授权Position demodulation through polarization of the transmitted beam in an optical wireless link 有权通过光无线链路中发射波束的极化进行位置解调公开(公告)号：US07162159B2
公开(公告)日：2007-01-09
申请号：US10146759
申请日：2002-05-16
IPC分类号： H04B10/00
CPC分类号： H04B10/11
摘要： A method of eliminating the non-linearities associated with the remote feedback sensor, such as a quad position detector, used in a micro-electro-mechanical (MEM) mirror assembly. The incoming beam transmitted from a remote optical wireless link is first polarized, and then a single detector is employed to detect the polarization for the receiver. The single detector eliminates the non-linearity associated with a quad position detector, since the space between the quad detectors is eliminated.
摘要翻译： 消除与微机电（MEM）反射镜组件中使用的诸如四位检测器的远程反馈传感器相关联的非线性的方法。 从远程光无线链路传输的入射光束首先被极化，然后使用单个检测器来检测接收机的极化。 单个检测器消除了与四位检测器相关联的非线性，因为四检测器之间的空间被消除。
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公开(公告)号：US07039321B2
公开(公告)日：2006-05-02
申请号：US10118789
申请日：2002-04-09
申请人： Eric G. Oettinger
发明人： Eric G. Oettinger
IPC分类号： H04B10/00
CPC分类号： H04B10/1123 , H04B10/1149
摘要： A method that allows an optical wireless communication link between transmitting and receiving stations to be established and used reliably without the need for position sensing capabilities. A small random nudge of the center of the acquisition spiral is used to prevent a link from being established before proper alignment is attained or to correct the alignment of an established link which does not have sufficient alignment to maintain a high bandwidth link.
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公开(公告)号：US06968258B2
公开(公告)日：2005-11-22
申请号：US10160399
申请日：2002-05-31
申请人： Eric G. Oettinger
发明人： Eric G. Oettinger
CPC分类号： G05B13/048 , G05B11/42
摘要： A system and method 100 of using residual feedback in a control loop in a manner that substantially eliminates the steady state error in the predicted states that results from the mismatch in gain between the plant and the model. The control effort used by the estimator to predict the next position is modified to compensate for this difference in gain. By integrating the residual, and modifying the apparent control effort accordingly, the residual is driven to have a mean value of zero. When the residual goes to zero, by definition, the steady state error in the position state goes to zero; and to the extent that the model matches the plant, the velocity state also approaches zero such that the steady state error in the predicted states are substantially eliminated, allowing for improved control.
摘要翻译： 一种在控制回路中使用残留反馈的方式的系统和方法100，其基本上消除了由植物和模型之间的增益失配导致的预测状态中的稳态误差。 估计器使用的预测下一个位置的控制努力被修改以补偿增益的这种差异。 通过对残差进行积分，并相应地修改表观控制力，将残差驱动为平均值为零。 当残差达到零时，根据定义，位置状态的稳态误差为零; 并且在模型与工厂匹配的程度上，速度状态也接近零，使得预测状态中的稳态误差基本上被消除，从而允许改进的控制。
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公开(公告)号：US06847754B2
公开(公告)日：2005-01-25
申请号：US10151787
申请日：2002-05-20
CPC分类号： G02B6/359 , G02B6/3518 , G02B26/0833
摘要： A method of moving a MEM system mirror in a well defined trajectory that allows longer seeks to be used to reach a target position as compared with known methods that employ small step sizes due to lack of well defined seek trajectories. One method uses the same seek trajectory (scaled in amplitude for seek length) for both axes (x-axis and y-axis) associated with the MEM mirror. This forces both axes to take the same length of time and to use the same “shape” to perform the move, and results in a straight line path between two points. Multiple straight line moves can be employed to provide a more complex trajectory. Another method uses a different trajectory with the same length, but a different shape, for each axis to force the MEM mirror along substantially any desired path such as an arc and/or straight line, among others.
摘要翻译： 与已知方法相比，由于缺少明确的搜索轨迹，使用较小步长的方法，可以将OM系统反射镜移动到明确定义的轨迹中，该轨迹允许更长时间寻求用于达到目标位置。 对于与MEM镜相关联的两个轴（x轴和y轴），一种方法使用相同的寻道轨迹（寻道长度的幅度缩放）。 这会强制两个轴采取相同的时间长度，并使用相同的“形状”来执行移动，并导致两点之间的直线路径。 可以采用多条直线移动来提供更复杂的轨迹。 另一种方法使用具有相同长度的不同轨迹，但是不同的形状，对于每个轴来迫使MEM镜沿着基本上任何期望的路径，诸如弧和/或直线等。
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10.发明授权Method of reducing control packet transmission rate for an optical wireless link 有权降低光无线链路的控制分组传输速率的方法公开(公告)号：US07477846B2
公开(公告)日：2009-01-13
申请号：US10146091
申请日：2002-05-14
IPC分类号： H04B10/00
CPC分类号： H04B10/07955 , H04B10/077 , H04B10/1143
摘要： A method that does not rely on signal strength for detecting the presence of a broken optical wireless link. The method controls the packet transfer rate in a manner that minimizes both network overhead and computational requirements. Upon completion of the acquisition process, the control packet transfer rate is significantly reduced, since a high control packet transmission rate is only necessary during the acquisition process in order to expedite the acquisition process. The need for reacquisition is based, for example, on the number of consecutive missing packets, or the rate of missing versus received packets.
摘要翻译： 一种不依赖于信号强度来检测断开的光无线链路的存在的方法。 该方法以最小化网络开销和计算需求的方式来控制分组传输速率。 在完成采集过程之后，控制分组传送速率显着降低，因为在采集过程中仅需要高的控制分组传输速率才能加快采集过程。 重新获取的需要基于例如连续丢失数据包的数量，或丢失速率与接收到的数据包的速率。
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