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公开(公告)号：US5442318A
公开(公告)日：1995-08-15
申请号：US138176
申请日：1993-10-15
申请人： Rajeev Badyal , Shao F. Shu
发明人： Rajeev Badyal , Shao F. Shu
CPC分类号： H03F3/45179 , H03F3/45192 , H03F3/45636 , H03F3/45659 , H03F2203/45028 , H03F2203/45122 , H03F2203/45174 , H03F2203/45184 , H03F2203/45462 , H03F2203/45641 , H03F2203/45651
摘要： A folded cascode operational amplifier using an improved gain enhancement technique is described. The folded cascode includes an input section, a cascode current mirror section, and a cascode current section. A first fully-differential operational amplifier is coupled to the cascode current mirror section to provide improved gain enhancement thereto and a second fully-differential operational amplifier is coupled to the cascode current source section to provide improved gain enhancement thereto. The differential inputs of the first fully-differential operational amplifier are coupled to feedback nodes of the cascode current mirror section and the differential outputs of the first fully-differential operational amplifier are coupled to control nodes of the cascode current mirror section. The differential inputs of the second fully-differential operational amplifier are coupled to feedback nodes of the cascode current source section and the differential outputs of the second fully-differential operational amplifier are coupled to control nodes of the cascode current mirror section. Coupling the feedback nodes of both current sources to a single fully-differential operational amplifier increases the common mode noise rejection of the corresponding section.
摘要翻译： 描述了使用改进的增益增强技术的折叠共源共栅运算放大器。 折叠共源共栅包括输入部分，共源共栅电流镜部分和共源共栅电流部分。 第一全差分运算放大器耦合到共源共栅电流镜部分以提供改进的增益增益，并且第二全差分运算放大器耦合到共源共栅电流源部分以提供改进的增益增益。 第一全差分运算放大器的差分输入耦合到共源共栅电流镜部分的反馈节点，并且第一全差分运算放大器的差分输出耦合到共源共栅电流镜部分的控制节点。 第二全差分运算放大器的差分输入耦合到共源共栅电流源部分的反馈节点，并且第二全差分运算放大器的差分输出耦合到共源共栅电流镜部分的控制节点。 将两个电流源的反馈节点耦合到单个全差分运算放大器会增加相应部分的共模噪声抑制。
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公开(公告)号：US20110141022A1
公开(公告)日：2011-06-16
申请号：US13034242
申请日：2011-02-24
IPC分类号： G06F3/033
CPC分类号： G06F3/03543 , G06F3/0317 , G06F3/033 , G06F3/0346 , G06F3/038
摘要： In an embodiment, a method of tracking movement relative to a surface involves comparing at least some data elements of a first array with at least some of data elements of a second array if it is determined, from an examination of the first array of data elements, that a characteristic condition does not exist in the first array of data elements, wherein the characteristic condition is related to the uniformity of at least a majority of the data elements of the first array.
摘要翻译： 在一个实施例中，跟踪相对于表面的移动的方法涉及将第一阵列的至少一些数据元素与第二阵列的至少一些数据元素进行比较，如果从第一数据元素阵列的检查确定 在第一数据元素阵列中不存在特征条件，其中特征条件与第一阵列的至少大部分数据元素的均匀性有关。
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公开(公告)号：US07800585B2
公开(公告)日：2010-09-21
申请号：US11929616
申请日：2007-10-30
IPC分类号： G09G5/08
CPC分类号： G06F3/03543 , G06F3/0317 , G06F3/033 , G06F3/0346 , G06F3/038
摘要： A method for operating a hand held optical pointing device, such as an optical mouse, involves capturing a plurality of arrays of data in a hand held optical pointing device representing light reflected from irregularities on a surface, processing at least some of the plurality of arrays of data in the device to estimate movement of the device with respect to the surface during each of a plurality of measurement cycles, and sending a series of estimated movement update signals to a computer, each such estimated movement update signal representing the estimated relative movement of the handheld optical pointing device with respect to the surface during more than one of the plurality of measurement cycles.
摘要翻译： 一种用于操作诸如光学鼠标的手持式光学指向装置的方法涉及在手持光学指示装置中捕获表示从表面上的不规则反射的光的多个数据阵列，处理多个阵列中的至少一些阵列 的装置中的数据以估计在多个测量周期中的每一个期间装置相对于表面的移动，并且向计算机发送一系列估计的移动更新信号，每个这样的估计移动更新信号表示估计的相对运动 所述手持光学指向装置在所述多个测量循环中的多于一个测量循环期间相对于所述表面。
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公开(公告)号：US07791590B1
公开(公告)日：2010-09-07
申请号：US11147838
申请日：2005-06-08
IPC分类号： G09G5/08
CPC分类号： G06F3/03543 , G06F3/0317 , G06F3/033 , G06F3/0346 , G06F3/038
摘要： An optical mouse includes a housing movable across a work surface with a source of non-coherent light in the movable housing for illuminating the work surface at a low or grazing angle of incidence, and may include a two dimensional array of photodetectors, each of which may produce an output in response to light reflected from surface irregularities on the illuminated work surface. The housing may include a memory for storing the photodetector outputs captured at one or more times. Circuitry in the housing may track movement of the housing relative to the work surface by comparing at least some of the photo detector outputs captured at a first time with at least some of the photo detector outputs captured at a second time depending upon whether a characteristic condition in the photo detector outputs, such as uniformity, is detected. The circuitry may track movement of the housing by comparing light reflected from the surface irregularities a first time with light reflected there from at a second time unless a detectable image is not included therein.
摘要翻译： 光学鼠标包括可移动的外壳中的非相干光源在工作表面上移动的壳体，用于以低或掠入射角照射工作表面，并且可以包括二维阵列的光电检测器 可以响应于从被照射的工作表面上的表面凹凸反射的光产生输出。 壳体可以包括用于存储一次或多次捕获的光电检测器输出的存储器。 通过将在第一时间捕获的光检测器输出中的至少一些与在第二时间捕获的光检测器输出中的至少一些进行比较，可以跟踪壳体相对于工作表面的移动，这取决于特征条件 在光检测器输出中，例如均匀性被检测到。 电路可以通过将来自表面凹凸反射的光第一次与在第二时间反射的光进行比较来跟踪壳体的移动，除非不包括可检测图像。
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公开(公告)号：US20100171703A1
公开(公告)日：2010-07-08
申请号：US12634245
申请日：2009-12-09
IPC分类号： G09G5/08
CPC分类号： G06F3/03543 , G06F3/0317 , G06F3/033 , G06F3/0346 , G06F3/038
摘要： A method for operating an optical pointing device involves capturing a plurality of arrays of data, representing light reflected from a surface to a two-dimensional array of photo detectors, processing at least some of the plurality of arrays of data to estimate movement of the surface during each of a plurality of measurement cycles, and sending a series of estimated movement update signals to a computer.
摘要翻译： 一种用于操作光学指向装置的方法涉及捕获表示从表面反射到二维光电检测器阵列的光的多个数据阵列，处理多个数据阵列中的至少一些以估计表面的运动 在多个测量周期的每一个期间，并且向计算机发送一系列估计的移动更新信号。
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公开(公告)号：US20060139332A9
公开(公告)日：2006-06-29
申请号：US11022183
申请日：2004-12-23
申请人： Gary Gordon , Derek Knee , Rajeev Badyal , Jason Hartlove
发明人： Gary Gordon , Derek Knee , Rajeev Badyal , Jason Hartlove
IPC分类号： G09G5/08
CPC分类号： G06F3/03543 , G06F3/0317 , G06F3/033 , G06F3/0346 , G06F3/038
摘要： A hand operated pointing device for use with a computer includes a movable housing, a source of non-coherent light illuminating a work surface and circuitry in the movable housing using arrays of data related to light reflected by the illuminated work surface to produce values by processing portions of a first array with portions of a second array. One of the values may be identified to represent movement of the housing relative to the work surface. The light may illuminate surface irregularities at an angle of incidence low enough to produce suitable arrays of data for processing from highlights and shadows of the illuminated surface irregularities. The circuitry may produce additional values by processing another selected portion of the first array with portions of a third array or may select a fourth array for processing with the third array. Predictions may be derived from the values. Signal may be sent to a computer related to movement of the housing.
摘要翻译： 与计算机一起使用的手动指示装置包括可移动外壳，照亮工作表面的非相干光源和可移动外壳中的电路，使用与被照射的工作表面反射的光相关的数据阵列，以通过处理产生值 具有第二阵列的部分的第一阵列的部分。 值之一可以被识别以表示壳体相对于工作表面的运动。 光可以以足够低的入射角照射表面凹凸，以产生合适的数据阵列，用于从被照射的表面凹凸的亮点和阴影处理。 电路可以通过用第三阵列的部分处理第一阵列的另一个选定部分来产生附加值，或者可以选择用于与第三阵列进行处理的第四阵列。 预测可以从值得出。 信号可以发送到与壳体的移动有关的计算机。
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公开(公告)号：US20050117130A1
公开(公告)日：2005-06-02
申请号：US10722596
申请日：2003-11-28
申请人： David Bohn , Thomas Oliver , Rajeev Badyal
发明人： David Bohn , Thomas Oliver , Rajeev Badyal
CPC分类号： G06F3/038 , G06F3/033 , G06F3/03543 , G09F19/18
摘要： A computer input device, such as an electronic mouse, having an optical projection system. The optical projection system is configured to project an image onto a housing wall surface, which may be on a side, top, or rear of the device. In one arrangement the optical projection system includes a light source, an image forming light blocker and optics. The optics may be collimating or non-collimating. In another arrangement the optical projection system may include an active LED matrix display. This system enables a use to personalize and/or customize his or her computer input device. Additionally, it permits the device to serve desirable notification functions if one or more of various events have occurred in a computer application being run on the computer. An example of event for notification includes the receipt of a message in a communications program such as an e-mail message.
摘要翻译： 具有光学投影系统的计算机输入装置，例如电子鼠标。 光学投影系统被配置为将图像投影到可以位于装置的侧面，顶部或后部的壳体壁表面上。 在一种布置中，光学投影系统包括光源，成像光阻挡器和光学器件。 光学器件可以是准直的或非准直的。 在另一种布置中，光学投影系统可以包括有源LED矩阵显示器。 该系统使得能够个性化和/或定制他或她的计算机输入设备。 此外，如果在计算机上运行的计算机应用程序中发生了各种事件中的一个或多个，则允许设备提供期望的通知功能。 用于通知的事件的示例包括在诸如电子邮件消息的通信程序中接收到消息。
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公开(公告)号：US5369310A
公开(公告)日：1994-11-29
申请号：US891587
申请日：1992-06-01
申请人： Rajeev Badyal , Vernon Knowles
发明人： Rajeev Badyal , Vernon Knowles
CPC分类号： H03K17/223
摘要： A CMOS power-on reset circuit has a delay capacitor to provide a predetermined delay period. Charging and discharging of the delay capacitor is controlled by the state of a flipflop circuit. An input comparator monitors a power supply input voltage. An invalid input voltage level immediately changes the reset output signal to the invalid state and discharges the capacitor. Even after the input voltage has recovered to a valid level, recharging the capacitor is delayed until the capacitor has substantially discharged, thereby ensuring at least a predetermined delay period after the last fault condition. The delay capacitor is coupled in a feedback configuration so as to lower the threshold voltage when the delay capacitor voltage indicates to the valid state, to allow limited power supply sag, for example due to motor start-up, without resetting the circuit. Multiple power supply voltages are continuously monitored in a CMOS integrated configuration by additional input scaling resistor networks and input comparators, all coupled to the common 2-level threshold voltage node.
摘要翻译： CMOS上电复位电路具有延迟电容器以提供预定的延迟周期。 延迟电容器的充电和放电由触发器电路的状态控制。 输入比较器监视电源输入电压。 无效的输入电压电平立即将复位输出信号变为无效状态并对电容放电。 即使在输入电压恢复到有效电平之后，电容器的再充电被延迟直到电容器基本上放电，从而确保在最后的故障状态之后至少预定的延迟时间。 延迟电容器以反馈配置耦合，以便当延迟电容器电压指示为有效状态时降低阈值电压，以允许例如由于电动机起动而导致有限的电源暂降而不使电路复位。 多个电源电压通过附加的输入缩放电阻网络和输入比较器在CMOS集成配置中连续监控，全部耦合到公共2级阈值电压节点。
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公开(公告)号：US20140369275A1
公开(公告)日：2014-12-18
申请号：US14302323
申请日：2014-06-11
申请人： Rod G. Fleck , William J. Westerinen , Rajeev Badyal , Philip L. Barnes , Vijayanand Vishwanathan
发明人： Rod G. Fleck , William J. Westerinen , Rajeev Badyal , Philip L. Barnes , Vijayanand Vishwanathan
CPC分类号： H04W4/50 , H04L67/2842 , H04W4/80 , H04W8/005 , H04W72/04 , H04W84/10 , H04W84/18 , H04W88/16
摘要： Embodiments include a smart personal gateway device (SPGD) that augments the capabilities of smart personal devices (SPDs) connected in a personal area network (PAN). The SPGD implements services for the SPDs using computing resources of the SPGD. In some embodiments, the SPGD provides carrier-grade voice services to SPDs lacking hardware to support such services (e.g., SPDs supporting Wi-Fi only).
摘要翻译： 实施例包括增加连接在个人区域网络（PAN）中的智能个人设备（SPD）的能力的智能个人网关设备（SPGD）。 SPGD使用SPGD的计算资源为SPD实施服务。 在一些实施例中，SPGD向缺乏硬件的SPD提供电信级语音服务以支持这种服务（例如，仅支持Wi-Fi的SPD）。
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公开(公告)号：US07808485B2
公开(公告)日：2010-10-05
申请号：US11929606
申请日：2007-10-30
IPC分类号： G09G5/08
CPC分类号： G06F3/03543 , G06F3/0317 , G06F3/033 , G06F3/0346 , G06F3/038
摘要： A method for controlling a computer cursor involves capturing a plurality of arrays of data in a hand held device representing light entering the device from an environment in which the device resides, processing at least some of the plurality of arrays of data in the device to estimate motion of the device with respect to the environment during each of a plurality of measurement cycles, and sending a series of estimated motion signals to a computer to move a cursor display in response to motion of the device relative to the environment, each such estimated motion signal representing the estimated motion of the handheld device during more than one of the plurality of measurement cycles.
摘要翻译： 一种用于控制计算机光标的方法涉及在手持设备中从表示从该设备驻留的环境进入设备的光的多个数据阵列，在设备中处理多个数据阵列中的至少一些以估计 在多个测量周期中的每一个期间设备相对于环境的运动，以及响应于设备相对于环境的运动而向计算机发送一系列估计运动信号以移动光标显示，每个这样的估计运动 表示多个测量周期期间多于一个的手持设备的估计运动的信号。
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