公开(公告)号：US20070158531A1

公开(公告)日：2007-07-12

申请号：US11326354

申请日：2006-01-06

申请人： Derek Knee ,  Rajeev Badyal

发明人： Derek Knee ,  Rajeev Badyal

IPC分类号： H01L27/00

CPC分类号： H04N5/378 ,  H04N5/363 ,  H04N5/3742 ,  H04N5/37455

摘要： Multiple pixels within a pixel array share a common output line. Each output line from the array is connected to one or more storage elements. Each of the storage elements receives a counter signal corresponding to levels of a reference voltage within each of the pixels. When an output line signal reaches a predetermined value, a storage element receiving that predetermined value latches the current value of the counter signal. Outputs from pixels of multiple columns in the array may be time-multiplexed onto the output lines or may form a serial scan chain connected to a single output line.

摘要翻译： 像素阵列内的多个像素共享共同的输出线。 来自阵列的每条输出线都连接到一个或多个存储元件。 每个存储元件接收对应于每个像素内的参考电压的电平的计数器信号。 当输出线信号达到预定值时，接收该预定值的存储元件锁存计数器信号的当前值。 阵列中多列的像素的输出可以被时间复用到输出线上，或者可以形成连接到单个输出线的串行扫描链。

公开(公告)号：US20050231484A1

公开(公告)日：2005-10-20

申请号：US11154008

申请日：2005-06-15

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： G06F3/03 ,  G06F3/038 ,  G06F3/042 ,  G09G5/08

CPC分类号： G06F3/03543 ,  G06F3/0317 ,  G06F3/033 ,  G06F3/0346 ,  G06F3/038

摘要： Movement of an optical mouse may be tracked by providing a source of non-coherent light in a movable housing for illuminating a work surface at a low angle of incidence, providing a two dimensional array of photo detectors for producing arrays of data elements responsive to light reflected from surface irregularities on the illuminated work surface and providing circuitry for capturing a first array of data elements from the two dimensional array of photo detectors at a first time, for detecting a characteristic condition in the first array, for capturing a second array of data elements at a second time, and for tracking movement of the housing relative to the work surface by comparing at least some of the data elements of the first array with at least some of the data elements of the second array if the characteristic condition is not detected in the first array. Movement may be tracked by providing a source of non-coherent light in a movable housing for illuminating a work surface at a low angle of incidence, providing a two dimensional array of photo detectors for producing arrays of data elements responsive to light reflected from surface irregularities on the illuminated work surface and providing circuitry for tracking movement of the housing relative to the work surface by comparing light reflected from the surface irregularities at a first time with light reflected there from at a second time unless the light reflected at the first time does not include a characteristic condition.

摘要翻译： 可以通过在可移动壳体中提供非相干光源来跟踪光学鼠标的移动，以便以低入射角照射工作表面，提供二维阵列的光电检测器，用于产生响应于光的数据元件阵列 从照明工作表面上的表面不规则反射并提供用于在第一时间从光电检测器的二维阵列捕获数据元素的第一阵列的电路，用于检测第一阵列中的特征状态，用于捕获第二数据阵列 如果没有检测到特征条件，则通过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来跟踪壳体相对于工作表面的移动 在第一个数组。 可以通过在可移动壳体中提供非相干光源来跟踪运动，以便以低入射角照射工作表面，提供二维阵列的光电检测器，用于响应于从表面不规则反射的光而产生数据元素阵列 在照明工作表面上并且提供电路，用于通过将来自第一时间的表面凹凸反射的光与第二时间反射的光相比较来跟踪壳体相对于工作表面的移动，除非第一次反射的光不是 包括特征条件。

公开(公告)号：US20050179662A1

公开(公告)日：2005-08-18

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： G06F3/03 ,  G06F3/038 ,  G06F3/042 ,  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。

公开(公告)号：US06433780B1

公开(公告)日：2002-08-13

申请号：US09753805

申请日：2001-01-02

申请人： Gary B. Gordon ,  Derek L. Knee ,  Rajeev Badyal ,  Jason T. Hartlove

发明人： Gary B. Gordon ,  Derek L. Knee ,  Rajeev Badyal ,  Jason T. Hartlove

IPC分类号： G09G508

CPC分类号： G06F3/0325 ,  G06F3/0317 ,  G06F3/0346 ,  G06F3/03543 ,  G06F3/038

摘要： An optical mouse images as an array of pixels the spatial features of generally any micro textured or micro detailed work surface below the mouse. The photo detector responses are digitized and stored as a frame into memory. Motion produces successive frames of translated patterns of pixel information, which are compared by autocorrelation to ascertain the direction and amount of movement. A hold feature suspends the production of movement signals to the computer, allowing the mouse to be physically relocated on the work surface without disturbing the position on the screen of the pointer. This may be needed if the operator runs out of room to physically move the mouse further, but the screen pointer still needs to go further. The hold feature may be implemented with an actual button, a separate proximity detector or by detecting the presence of a characteristic condition in the digitized data, such as loss of correlation or velocity in excess of a selected limit. A convenient place for an actual hold button is along the sides of the mouse near the bottom, where the thumb and the opposing ring finger grip the mouse. The gripping force used to lift the mouse engages the hold function. Hold may incorporate a brief delay upon either the release of the hold button, detection of proper proximity or the return of reasonable digitized values. During that delay any illumination control or AGC servo loops stabilize. A new reference frame is taken prior to the resumption of motion detection.

摘要翻译： 光学鼠标将像素的阵列图像通常位于鼠标下面的任何微纹理或微细的工作表面的空间特征。 光电检测器响应被数字化并作为帧存储到存储器中。 运动产生像素信息的平移图案的连续帧，其通过自相关比较以确定运动的方向和量。 保持功能将运动信号暂停生产到计算机，允许鼠标物理地重新定位在工作表面上，而不会干扰指示器屏幕上的位置。 如果操作者耗尽空间以进一步物理移动鼠标，则可能需要这一点，但是屏幕指针仍然需要进一步。 保持特征可以用实际按钮，单独的接近检测器或通过检测数字化数据中的特征状况的存在来实现，诸如超过所选极限的相关性或速度的损失。 实际按住按钮的一个方便的地方是靠近底部的鼠标的两侧，拇指和相对的无名指握住鼠标。 用于提升鼠标的夹紧力与保持功能接合。 保持可能会在保留按钮的释放，检测到适当的接近度或合理的数字化值的返回之间引入短暂的延迟。 在该延迟期间，任何照明控制或AGC伺服回路稳定。 在恢复运动检测之前采取新的参考系。

公开(公告)号：US6151015A

公开(公告)日：2000-11-21

申请号：US67280

申请日：1998-04-27

申请人： Rajeev Badyal ,  Derek L. Knee

发明人： Rajeev Badyal ,  Derek L. Knee

IPC分类号： G06F3/03 ,  G06F3/033 ,  G06F3/038 ,  G09G5/00

CPC分类号： G06F3/0317 ,  G06F3/03545

摘要： A pen like computer pointing device images as an array of pixels the spatial features of generally any micro textured or micro detailed work surface below the tip of the pen. The photo detector responses are digitized and stored as a frame into memory. Motion produces successive frames of translated patterns of pixel information, which are compared by autocorrelation to ascertain the direction and amount of movement. A contact sensor senses when the tip of the pointing device is in contact with the work surface. Buttons are included on the body of the pointing device that allow it to function in place of a computer mouse device.

摘要翻译： 笔像计算机将设备图像指向像素阵列，通常在笔尖下方的任何微纹理或微细的工作表面的空间特征。 光电检测器响应被数字化并作为帧存储到存储器中。 运动产生像素信息的平移图案的连续帧，其通过自相关比较以确定运动的方向和量。 接触传感器检测指示装置的尖端何时与工作表面接触。 按钮包含在指示设备的主体上，使其能够代替计算机鼠标设备。

公开(公告)号：US5446404A

公开(公告)日：1995-08-29

申请号：US230354

申请日：1994-04-20

申请人： Rajeev Badyal ,  Vernon Knowles

发明人： Rajeev Badyal ,  Vernon Knowles

IPC分类号： G06F1/24 ,  H03K17/22 ,  H03K17/28 ,  H03K5/24

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 reset output signal is coupled in a feedback configuration so as to lower the threshold voltage when the reset output switches 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。 复位输出信号以反馈配置耦合，以便当复位输出切换到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。

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

IPC分类号： H03F1/26 ,  H03F3/45

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。

公开(公告)号：US5363134A

公开(公告)日：1994-11-08

申请号：US886641

申请日：1992-05-20

申请人： George Barbehenn ,  James R. Hulings ,  Rajeev Badyal ,  Ross R. Allen ,  Michael B. Saunders

发明人： George Barbehenn ,  James R. Hulings ,  Rajeev Badyal ,  Ross R. Allen ,  Michael B. Saunders

IPC分类号： B41J2/01 ,  B41J2/05 ,  B41J2/175 ,  G06F13/366 ,  G06K19/07

CPC分类号： B41J2/17546 ,  B41J2/04506 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04563 ,  B41J2/0458 ,  B41J2/175 ,  G06K19/07 ,  B41J2202/17

摘要： An integrated circuit for use in the printhead of an ink jet printer includes an array circuit for heating an ink reservoir to produce a pattern of ink jets, the array circuit including a plurality of resistor cells arranged into rows and columns. A corresponding number of row and column lines are coupled to the integrated circuit array for selecting and energizing the resistor cells according to the desired printing pattern. An identification circuit integrated into the same substrate as the array circuit includes one or more programmable paths, the programmable paths corresponding and coupled to each row line. The programmable paths each include the serial combination of a programmable fuse and an active device. The opposite end of the programmable paths are coupled together at a common node, which in turn is coupled to an output circuit for providing a single output signal in response to a polling of the row lines. The identification circuit can be programmed and polled without adversely affecting or energizing the array circuit.

摘要翻译： 用于喷墨打印机的打印头的集成电路包括用于加热墨水储存器以产生喷墨图案的阵列电路，该阵列电路包括布置成行和列的多个电阻单元。 相应数量的行和列线耦合到集成电路阵列，用于根据期望的打印模式选择和激励电阻单元。 集成在与阵列电路相同的衬底中的识别电路包括一个或多个可编程路径，可编程路径对应并耦合到每条行线。 可编程路径各自包括可编程保险丝和有源器件的串行组合。 可编程路径的相对端在公共节点处耦合在一起，该公共节点又耦合到输出电路，以响应于对行线的轮询来提供单个输出信号。 可以对识别电路进行编程和轮询，而不会对阵列电路造成不利影响或激励。

公开(公告)号：US5289112A

公开(公告)日：1994-02-22

申请号：US948274

申请日：1992-09-21

申请人： Charles A. Brown ,  Billy E. Thayer ,  Rajeev Badyal

发明人： Charles A. Brown ,  Billy E. Thayer ,  Rajeev Badyal

IPC分类号： H01L33/00 ,  B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  G05F1/46 ,  G05F3/24 ,  G06K15/12 ,  G05F3/26

CPC分类号： G06K15/1261 ,  G05F1/468 ,  G05F3/24

摘要： A programmable power supply for driving LEDS is disclosed that includes a reference current leg and a number of output current legs. Both the reference current leg and the output current legs are further comprised of a plurality of parallel driver FET-control FET pairs, in which the driver and control FETs are connected in series. The driver FETs are biased by a reference voltage that provides a predetermined maximum output current. The control FETs are individually selected to provide a controlled output current. The individual control voltage is either a positive voltage, which disables the control FET, or a predetermined cascode voltage that places the control FET at or into the high output impedance saturation conduction region. By placing the control FETs into the saturation region, the output current is substantially insensitive to voltage fluctuations at the output

摘要翻译： 公开了一种用于驱动LEDS的可编程电源，其包括参考电流支路和多个输出电流支路。 参考电流支路和输出电流支路还包括多个并联驱动器FET控制FET对，其中驱动器和控制FET串联连接。 驱动器FET被提供预定最大输出电流的参考电压偏置。 控制FET被单独选择以提供受控的输出电流。 单独的控制电压是正电压，其禁用控制FET，或者将控制FET放置在高输出阻抗饱和导通区域中的预定的共源共栅电压。 通过将控制FET置于饱和区域中，输出电流基本上对输出端的电压波动不敏感