公开(公告)号：US08450673B2

公开(公告)日：2013-05-28

申请号：US12916044

申请日：2010-10-29

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： H01L27/00

CPC分类号： G01J1/44 ,  H04N5/378

摘要： A pixel circuit uses two storage transistors to store two image signal samples, which include a reference signal produced by background noise of the pixel circuit and a signal produced by optical exposure of a photodetector and the background noise of the pixel circuit. An imaging integrated circuit uses a pixel circuit array, which may contain a number of such pixel circuits, and a charge acquisition circuit configured to read out image information obtained by the pixel circuit array. The charge acquisition circuit uses a first amplifier and a serially connected differential integrator that includes a second amplifier, a first differential integrator section and a second differential integrator section for the read out. A method for image information acquisition involves obtaining image information using the pixel circuit array and reading out the image information obtained by the pixel circuit array using the charge acquisition circuit.

摘要翻译： 像素电路使用两个存储晶体管来存储两个图像信号样本，其包括由像素电路的背景噪声产生的参考信号和由光电检测器的光学曝光产生的信号和像素电路的背景噪声。 成像集成电路使用可以包含多个像素电路的像素电路阵列，以及被配置为读出由像素电路阵列获得的图像信息的电荷获取电路。 电荷获取电路使用第一放大器和串联的差分积分器，其包括第二放大器，第一差分积分器部分和用于读出的第二差分积分器部分。 用于图像信息获取的方法包括使用像素电路阵列获得图像信息，并且使用电荷获取电路读出由像素电路阵列获得的图像信息。

公开(公告)号：US08149605B2

公开(公告)日：2012-04-03

申请号：US12744931

申请日：2008-11-26

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： G11C27/00

CPC分类号： G11C27/024

摘要： An analog memory circuit, i.e. a sample and hold circuit, wherein the source and the gate of the switching transistor is maintained at a same potential prior and after the sampling process using a transistor circuitry. The analog memory circuit comprises a memory capacitor (102) connected at a first end to a first port (104), which is connected a reference potential (106). A drain of a first transistor (108) —switch transistor—is connected to a second end of the memory capacitor (102). A source of the first transistor (108) is connected to a second port (110), which is connected to circuitry (112) for providing an input signal for storage in the memory capacitor (102), and a gate of the first transistor (108) is connected to a third port (114), which is connected to a first current sink (116). A source of a second transistor (118) is connected to the source of the first transistor (108) and a drain of the second transistor (118) is connected to the gate of the first transistor (108). The source of the first transistor (108) is connected to a source of a third transistor (120). A gate and a drain of the third transistor (120) are connected together to a gate of the second transistor (118) and to a fourth port (122), which is connected to a second current sink (124). According to the invention the feedthrough error is constant irrespective of the input signal level.

摘要翻译： 模拟存储器电路，即采样和保持电路，其中开关晶体管的源极和栅极在使用晶体管电路的采样过程之前和之后保持在相同的电位。 模拟存储器电路包括在第一端连接到连接有参考电位（106）的第一端口（104）的存储电容器（102）。 第一晶体管（108）的开关晶体管的漏极连接到存储电容器（102）的第二端。 第一晶体管（108）的源极连接到第二端口（110），其连接到用于提供用于存储在存储电容器（102）中的输入信号的电路（112），以及第一晶体管 108）连接到连接到第一电流吸收器（116）的第三端口（114）。 第二晶体管（118）的源极连接到第一晶体管（108）的源极，并且第二晶体管（118）的漏极连接到第一晶体管（108）的栅极。 第一晶体管（108）的源极连接到第三晶体管（120）的源极。 第三晶体管（120）的栅极和漏极连接到第二晶体管（118）的栅极和连接到第二电流吸收器（124）的第四端口（122）。 根据本发明，无论输入信号电平如何，馈通误差是恒定的。

公开(公告)号：US08766930B2

公开(公告)日：2014-07-01

申请号：US12792682

申请日：2010-06-02

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： G06F3/041

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： Disclosed herein are various embodiments of a capacitive touchscreen system that is capable of sensing simultaneous or near-simultaneous multiple finger touches made on a capacitive touchscreen. In one embodiment, drive-sense circuits operably connected to X and Y lines of the touchscreen may be interchangeably and selectably configured as either sense circuits or drive circuits by a drive/sense processor operably connected thereto.

摘要翻译： 本文公开了电容式触摸屏系统的各种实施例，其能够感测在电容式触摸屏上进行的同时或近同时多个手指触摸。 在一个实施例中，可操作地连接到触摸屏的X线和Y线的驱动感测电路可以通过与其可操作地连接的驱动/感测处理器互换地和可选地配置为感测电路或驱动电路。

公开(公告)号：US08547359B2

公开(公告)日：2013-10-01

申请号：US12819635

申请日：2010-06-21

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： G06F3/045

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： Disclosed herein are various embodiments of a capacitive touchscreen system which includes switchable charge acquisition circuits and corresponding charge integrator circuits for sensing mutual capacitances associated with a touchscreen. Various embodiments of the switchable charge acquisition circuits and corresponding charge integrator circuits provide lower power consumption, increased operational stability, substantially reduced integrated circuit area, and increased temperature stability.

摘要翻译： 这里公开了电容式触摸屏系统的各种实施例，其包括可切换电荷获取电路和用于感测与触摸屏相关联的互电容的相应电荷积分器电路。 可切换电荷获取电路和相应的电荷积分器电路的各种实施例提供较低的功耗，增加的操作稳定性，显着降低的集成电路面积和增加的温度稳定性。

公开(公告)号：US08427452B2

公开(公告)日：2013-04-23

申请号：US13149866

申请日：2011-05-31

申请人： Abhay Kumar Rai ,  Vitali Souchkov ,  Jeffrey Stone

发明人： Abhay Kumar Rai ,  Vitali Souchkov ,  Jeffrey Stone

IPC分类号： G06F3/045

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： Various embodiments of charge pump circuitry configured to generate output signals having first distortion signals superimposed thereon are disclosed. Demodulator input signals are also disclosed that have second distortion signals superimposed thereon. A synchronization signal is delivered to demodulator circuitry through at least first and second integer divider circuits and to charge pump circuitry through at least the first integer divider circuitry such that the first and second distortion signals have frequencies that are integer divisions of the synchronization frequency.

摘要翻译： 公开了电荷泵电路的各种实施例，其被配置为产生具有叠加在其上的第一失真信号的输出信号。 还公开了具有叠加在其上的第二失真信号的解调器输入信号。 同步信号通过至少第一和第二整数分频器电路传送到解调器电路，并且通过至少第一整数除法器电路对泵电路充电，使得第一和第二失真信号具有作为同步频率的整数除法的频率。

公开(公告)号：US20120105355A1

公开(公告)日：2012-05-03

申请号：US12916567

申请日：2010-10-31

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： G06F3/045

CPC分类号： G06F3/044 ,  G06F3/0416 ,  H03K17/9622 ,  H03K2217/96031

摘要： Disclosed herein are various embodiments of circuits and methods in a capacitive touchscreen system that eliminate the need to digitize an entire array of pixel signals obtained from a touchscreen. Instead, regions of interest, or projections of object or touch signal clusters, from touchscreen 90 are employed to encode the coordinates or positions of objects or touches in an analog-to-digital converter (ADC). Encoding of object positions occurs during digitization of the analog signal clusters, which eliminates the need to separately digitize individual touchscreen signals. The disclosed circuits and methods reduce the number of signal processor channels that might otherwise be required, and lead to power consumption reduction in the capacitive touchscreen system, as well as in reducing the area required to implement the circuit architecture in an integrated circuit.

摘要翻译： 本文公开了电容式触摸屏系统中的电路和方法的各种实施例，其消除了对从触摸屏获得的整个像素信号数组化的需要。 相反，来自触摸屏90的感兴趣的区域或物体或触摸信号簇的投影被用于对模拟 - 数字转换器（ADC）中的对象或触摸的坐标或位置进行编码。 对象位置的编码发生在模拟信号簇的数字化期间，这消除了单独数字化各个触摸屏信号的需要。 所公开的电路和方法减少了可能需要的信号处理器通道的数量，并且导致电容式触摸屏系统中的功耗降低，以及减少在集成电路中实现电路架构所需的面积。

公开(公告)号：US20110310051A1

公开(公告)日：2011-12-22

申请号：US12819453

申请日：2010-06-21

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： G06F3/045

CPC分类号： G06F3/0416 ,  G06F3/0418 ,  G06F3/044

摘要： Disclosed herein are various embodiments of circuits and methods for reducing electromagnetic interference in mutual capacitance measurement or sensing systems, devices, components and methods such as capacitive touchscreens. Charge integrator circuits and switched capacitance filtering circuits are disclosed that improve the signal-to-noise ratio (or the ratio of a desired sensed mutual capacitance signal to an undesired EMI signal) in a capacitive sensor readout circuit without the need to increase the amplitude of the drive signal. The various embodiments of the charge integrator and switched capacitance filtering circuits described herein permit an improvement in noise immunity without requiring the excessive power levels typically associated with high amplitude drive circuitry, and moreover result in boosting signal-to-noise ratios during early stages of signal processing.

摘要翻译： 本文公开了用于减小互电容测量或感测系统，设备，组件和方法（例如电容式触摸屏）中的电磁干扰的电路和方法的各种实施例。 公开了电容积分器电路和开关电容滤波电路，其在电容式传感器读出电路中提高信噪比（或期望的感测到的互电容信号与不期望的EMI信号的比率），而不需要增加振幅 驱动信号。 本文描述的电荷积分器和开关电容滤波电路的各种实施例允许提高噪声抗扰度，而不需要通常与高幅度驱动电路相关联的过大功率电平，而且还在信号的早期阶段提升信噪比 处理。

公开(公告)号：US08441378B2

公开(公告)日：2013-05-14

申请号：US13222886

申请日：2011-08-31

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： H03M1/06

CPC分类号： H03M1/1057 ,  H03M1/403

摘要： Various embodiments of methods and devices for reducing capacitor mismatch errors in a pipeline analog-to-digital converter (ADC) are disclosed. A plurality of pipeline element circuits are provided, where each pipeline element circuit corresponds to a given bit of the pipeline ADC. A first pipeline element circuit is configured to digitize analog A and B capacitor mismatch error calibration voltages generated by all the pipeline element circuits of the ADC when the pipeline ADC is operating in a capacitor mismatch calibration phase. According to one embodiment, digital representations corresponding to A and B capacitor mismatch error calibration voltages for each of the pipeline element circuits are provided to an output shift register and summing circuit, which generates capacitor mismatch error correction codes corresponding to each bit and pipeline element circuit. The capacitor mismatch error correction codes are applied to each bit weight of the pipeline ADC after conversion of analog signals input to the pipeline ADC has been completed.

摘要翻译： 公开了用于减少流水线模数转换器（ADC）中的电容器失配误差的方法和装置的各种实施例。 提供了多个流水线元件电路，其中每个流水线元件电路对应于流水线ADC的给定位。 第一流水线元件电路被配置为当流水线ADC在电容器失配校准阶段中操作时，数字化由ADC的所有流水线元件电路产生的模拟A和B电容器失配误差校准电压。 根据一个实施例，对应于每个流水线元件电路的A和B电容器失配误差校准电压的数字表示被提供给输出移位寄存器和求和电路，其产生对应于每个位和流水线元件电路的电容器失配纠错码 。 电容失配纠错码适用于输入到流水线ADC的模拟信号转换完成后流水线ADC的每个位权重。

公开(公告)号：US20110298745A1

公开(公告)日：2011-12-08

申请号：US12792682

申请日：2010-06-02

申请人： Vitali Souchkov

发明人： Vitali Souchkov

IPC分类号： G06F3/045

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： Disclosed herein are various embodiments of a capacitive touchscreen system that is capable of sensing, simultaneous or near-simultaneous multiple finger touches made on a capacitive touchscreen. In one embodiment, drive-sense circuits operably connected to X and Y lines of the touchscreen may be interchangeably and selectably configured as either sense circuits or drive circuits by a drive/sense processor operably connected thereto.

摘要翻译： 本文公开了电容式触摸屏系统的各种实施例，其能够感测同时或近同时在电容式触摸屏上制作的多个手指触摸。 在一个实施例中，可操作地连接到触摸屏的X线和Y线的驱动感测电路可以通过与其可操作地连接的驱动/感测处理器互换地和可选地配置为感测电路或驱动电路。

公开(公告)号：US20100302201A1

公开(公告)日：2010-12-02

申请号：US12476690

申请日：2009-06-02

申请人： Robert Ritter ,  Kenneth Brewer ,  Vitali Souchkov ,  Sarangan Narasimhan

发明人： Robert Ritter ,  Kenneth Brewer ,  Vitali Souchkov ,  Sarangan Narasimhan

IPC分类号： G06F3/045

CPC分类号： G06F3/044 ,  G06F2203/04111

摘要： According to one embodiment, there is provided a mutual capacitance touchscreen comprising a first set of electrically conductive traces arranged in rows or columns and a second set of electrically conductive traces arranged in rows or columns arranged at right angles with respect to the rows or columns of the first set, where the first and second sets of traces are electrically insulated from and interdigitated respecting one another, and gaps between the first and second sets of traces form boundaries between the first and second sets of traces that undulate and that are not straight or linear. Other embodiments of a mutual capacitance touchscreen are also disclosed, such as “mini-diamond” sensor array patterns and sensor array patterns that may be manufactured at low cost.

摘要翻译： 根据一个实施例，提供了一种互电容触摸屏，其包括布置成行或列的第一组导电迹线和布置成相对于行或列成直角布置的行或列的第二组导电迹线 第一组，其中第一组和第二组轨迹彼此电绝缘和相互交错，并且第一组和第二组轨迹之间的间隙形成起伏的第一组和第二组轨迹之间的边界，并且不直线或 线性的。 还公开了互电容触摸屏的其它实施例，例如可以以低成本制造的“微型金刚石”传感器阵列图案和传感器阵列图案。