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1. 发明授权

US09817509B2 Methods and apparatuses for providing sensing signals for projected capacitive touch sensing using a differential current mode analog circuit 有权
公开(公告)号：US09817509B2
公开(公告)日：2017-11-14
申请号：US14927487
申请日：2015-10-30
申请人： Solomon Systech Limited
发明人： Yin Li , Kin Pui Ho , Kut Hing Lam
IPC分类号： G06F3/044 , G06F3/041 , G06F3/047
CPC分类号： G06F3/0416 , G06F3/0418 , G06F3/044 , G06F3/047
摘要： An analog front-end circuit comprising: a first current mode differential charge amplifier for a first sensing line, comprising: a unity gain buffer with current replication circuit, wherein the first sensing line current being fed to the unity gain buffer with current replication circuit to generate a pull up and a pull down output currents; and a current mirroring and amplification circuit, wherein the pull up and pull down output currents being fed to the current mirroring and amplification circuit to generate a positively scaled and a negatively scaled output currents; a current combining circuit for combining the positively scaled output generated for the first sensing line and a negatively scaled output current generated for a second sensing line to generate a differential current; and a differential current-to-voltage converter for converting the differential current to an output voltage usable by touch controller application.

2. 发明申请

US20150029212A1 POLY-PHASE FRAME MODULATION SYSTEM 有权
标题翻译：多相框调制系统
公开(公告)号：US20150029212A1
公开(公告)日：2015-01-29
申请号：US13958624
申请日：2013-08-05
申请人： Solomon Systech Limited
发明人： Wing Chi Stephen CHAN , Wai Kin CHENG
IPC分类号： G09G5/06
CPC分类号： H04N9/646 , G06T3/00 , G06T3/4015 , G09G3/2007
摘要： A poly-phase frame modulation system includes a phase matrix look-up table being configured for generating a reference phase matrix; a first phase modulator being configured for generating a first modulated output by taking in the data from a red channel and the sum of the reference phase matrix and a frame offset; a second phase modulator being configured for generating a second modulated output by taking in the data from a green channel and the sum of the reference phase matrix, the frame offset and a first channel offset; and a third phase modulator being configured for generating a third modulated output by taking in the data from a blue channel and the sum of the reference phase matrix, the frame offset and a second channel offset.
摘要翻译：多相帧调制系统包括被配置用于产生参考相位矩阵的相位矩阵查找表; 第一相位调制器被配置为通过从红色通道获取数据和参考相位矩阵和帧偏移的和来产生第一调制输出; 第二相位调制器被配置为通过从绿色通道获取数据和参考相位矩阵，帧偏移和第一通道偏移的和来产生第二调制输出; 以及第三相位调制器，被配置为通过从蓝色通道获取数据和参考相位矩阵，帧偏移和第二通道偏移量的和来产生第三调制输出。

3. 发明授权

US08314779B2 Method and apparatus for operating a touch panel 有权
标题翻译：用于操作触摸面板的方法和装置
公开(公告)号：US08314779B2
公开(公告)日：2012-11-20
申请号：US12390637
申请日：2009-02-23
申请人： Wing Chi Stephen Chan , Wai Pak Choi , Wai Kin Cheng , Kwok Wah Chu , Siu Hong Lui , Yao Lu , Wai Hon Ng
发明人： Wing Chi Stephen Chan , Wai Pak Choi , Wai Kin Cheng , Kwok Wah Chu , Siu Hong Lui , Yao Lu , Wai Hon Ng
IPC分类号： G06F3/045
CPC分类号： G06F3/044 , G06F3/04883 , G06F2203/04808
摘要： A controller for detection of touches by a single finger or multiple fingers on a touch panel, the touch panel including a first group of electrodes arranged in a first direction and a second group of electrodes arranged in a second direction, thereby forming a plurality of crossover points. The controller includes: a plurality of signal drivers coupled to the first group of electrodes and configured to excite the first group of electrodes sequentially using a spread spectrum signal; a plurality of signal sensors coupled to the second group of electrodes and configured to detect peaks and troughs of capacitive coupled signals at the second group of electrodes, the detecting being performed simultaneously for the crossover points along a current one of the first group of electrodes that is being excited; and a signal processing device configured to detect the touches on the touch panel and to determine touch positions and touch movements, based on the detected peaks and troughs of the capacitive coupled signals.
摘要翻译：一种用于在触摸面板上检测单个手指或多个手指触摸的控制器，所述触摸面板包括沿第一方向布置的第一组电极和沿第二方向布置的第二组电极，由此形成多个交叉积分所述控制器包括：多个信号驱动器，其耦合到所述第一组电极并且被配置为使用扩频信号顺序地激励所述第一组电极; 多个信号传感器，其耦合到所述第二组电极并且被配置为检测所述第二组电极处的电容耦合信号的峰值和谷值，所述检测同时对于沿着所述第一组电极中的当前电极的交叉点执行，正在兴奋以及信号处理装置，被配置为基于检测到的电容耦合信号的峰值和谷来检测触摸面板上的触摸并确定触摸位置和触摸移动。

4. 发明授权

US08103120B2 Method and apparatus of local contrast enhancement 有权
标题翻译：局部对比度增强的方法和装置
公开(公告)号：US08103120B2
公开(公告)日：2012-01-24
申请号：US12234895
申请日：2008-09-22
申请人： Wai Pak Choi , Stephen Wai-Yan Lai , Wing Chi Stephen Chan
发明人： Wai Pak Choi , Stephen Wai-Yan Lai , Wing Chi Stephen Chan
IPC分类号： G06K9/40
CPC分类号： G09G3/36 , G09G3/3406 , G09G2320/0271 , G09G2320/0646 , G09G2320/066 , G09G2330/021 , G09G2360/16
摘要： Methods and apparatuses of contrast enhancement on an image are disclosed. The method performs local shading of fine contrast variations in an image, with particular advantage in tone mapping applications. The amounts of shading are determined by the preferred degree of increased image contrast 810, including compensation for subsequent tone mapping, and the difference between a profile signal 803 and the image signal 801 conditional on the signal profile level being higher than the original image signal level, wherein avoiding boosting of brightness level to obtain contrast enhancement. The profile signal 803 is calculated by the weighted sum of the image signal and the absolute signal variation which is the absolute value of the variation between the brightness of two neighbor pixels. This amount of shading is reduced to zero when the profile signal 803 is lower than the original image signal 801 for avoiding the overshooting problem at sharp edges in an image. Uniform RGB scaling is applied to preserve original color tones.
摘要翻译：公开了对图像进行对比度增强的方法和装置。该方法执行图像中精细对比度变化的局部阴影，在色调映射应用中特别有利。阴影量由增加的图像对比度810的优选程度确定，包括对随后的色调映射的补偿，以及条件信号803与图像信号801之间的差异，其信号简档级别高于原始图像信号电平，其中避免提高亮度水平以获得对比度增强。通过图像信号和作为两个相邻像素的亮度之间的变化的绝对值的绝对信号变化的加权和计算分布信号803。当轮廓信号803低于原始图像信号801时，这个阴影量减少到零，以避免在图像中的尖锐边缘处的过冲问题。应用均匀的RGB缩放以保留原始色调。

5. 发明申请

US20090278786A1 Methods and Apparatus of Dynamic Backlight Control 有权
标题翻译：动态背光控制的方法与装置
公开(公告)号：US20090278786A1
公开(公告)日：2009-11-12
申请号：US12116739
申请日：2008-05-07
申请人： Wing Chi Chan , Wai Pak Choi , Wai-Yan Stephen Lai
发明人： Wing Chi Chan , Wai Pak Choi , Wai-Yan Stephen Lai
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G2320/0646 , G09G2330/021 , G09G2360/16
摘要： A method of adjusting image intensity to compensate backlight dimming in dynamic backlight control, the method including estimating distortion of an image that corresponds to different mapping index values 204 selected from the intensity levels 202 of an image. The estimated distortion of image represents factors including the quantity of pixels 205 that have intensity exceeding a mapping index value 204; and the amount 206 that the intensity of each pixel exceeds the corresponding mapping index value. The method further includes selecting from a plurality of schemes 301 for adjusting image intensity to minimize the estimated distortion obtained from the estimating.
摘要翻译：一种调整图像强度以补偿动态背光控制中的背光调光的方法，所述方法包括估计对应于从图像的强度级202选择的不同映射索引值204的图像的失真。图像的估计失真表示包括强度超过映射指标值204的像素205的数量的因素; 以及每个像素的强度超过相应的映射索引值的量206。该方法还包括从多个方案301中选择用于调整图像强度以最小化从估计获得的估计失真。

6. 发明申请

US20080018585A1 Driving circuit, system, and method to improve uniformity of column line outputs in display systems 有权
标题翻译：驱动电路，系统和方法，以提高显示系统中列线输出的均匀性
公开(公告)号：US20080018585A1
公开(公告)日：2008-01-24
申请号：US11489464
申请日：2006-07-20
申请人： Cheung Fai Lee , Yiu Sang Lei , Ki Leung Mak
发明人： Cheung Fai Lee , Yiu Sang Lei , Ki Leung Mak
IPC分类号： G09G3/36
CPC分类号： G09G3/3275 , G09G3/3685 , G09G2310/0297 , G09G2320/0233
摘要： A driver circuit, display system, and method includes a driver circuit that provides driving signals to drive a plurality of display pixel elements arranged in a plurality of rows and columns and coupled to associated row and column lines, respectively. The driver circuit includes a plurality of driver units coupled to associated ones of the plurality of column lines, and a plurality of switching components respectively coupled between outputs of ones of the driver units coupled to adjacent ones of the plurality of column lines. The driver units control associated ones of the switching components to electrically couple the adjacent outputs of the driver units to make the outputs the same or substantially the same when display data signals received for pixel elements coupled to the adjacent column lines are the same.
摘要翻译：驱动器电路，显示系统和方法包括驱动器电路，其提供驱动信号以分别驱动布置在多个行和列中的多个显示像素元件，并分别耦合到相关联的行和列线。驱动器电路包括耦合到多个列线中的相关联的线路的多个驱动器单元以及分别耦合到耦合到多个列线中的相邻列线路的驱动器单元的输出之间的多个开关组件。驱动器单元控制相关联的开关部件以电耦合驱动器单元的相邻输出，以使得连接到相邻列线的像素元件接收的显示数据信号相同时，输出相同或基本相同。

7. 发明授权

US07239117B2 Programmable inductor current control for DC-DC converters 有权
标题翻译：用于DC-DC转换器的可编程电感电流控制
公开(公告)号：US07239117B2
公开(公告)日：2007-07-03
申请号：US11029336
申请日：2005-01-06
申请人： Cheung Fai Lee , Stephen Wai-Yan Lai , Alvin Chit-Sang Chan , David Chin-Tung Or
发明人： Cheung Fai Lee , Stephen Wai-Yan Lai , Alvin Chit-Sang Chan , David Chin-Tung Or
IPC分类号： G05F1/40
CPC分类号： H02M3/156 , H02M2001/0009
摘要： A DC-DC converter circuit includes an inductor having an inductor current, an inductor current emulation circuit for producing an emulated inductor current, and a control circuit coupled with the emulation circuit for receiving the emulated inductor current and determining a peak inductor current for the DC-DC converter.
摘要翻译： DC-DC转换器电路包括具有电感器电流的电感器，用于产生仿真电感器电流的电感器电流仿真电路，以及与仿真电路耦合的控制电路，用于接收仿真电感器电流并确定DC的峰值电感器电流 -DC转换器。

8. 发明授权

US07151550B2 OLED driver circuit with selectable LCD controller interface and drive strength 有权
标题翻译： OLED驱动电路采用可选LCD控制器接口和驱动强度
公开(公告)号：US07151550B2
公开(公告)日：2006-12-19
申请号：US10698442
申请日：2003-11-03
申请人： Yuen Pat Lau , Wai-Yan Stephen Lai , Yiu Sang Lei , Chung Yee Ng , Jimmy Chiu
发明人： Yuen Pat Lau , Wai-Yan Stephen Lai , Yiu Sang Lei , Chung Yee Ng , Jimmy Chiu
IPC分类号： G09G5/02
CPC分类号： G09G3/20 , G09G3/2014 , G09G3/3216 , G09G3/3611 , G09G2370/08
摘要： The present invention provides a display system comprising a liquid crystal display (LCD) controller and an organic light emitting diode (OLED) driver circuit. The LCD controller can be a mono super twisted nematic (STN) and gray scale and color thin film transistor (TFT) controller. The LCD controller processes general format data and accordingly generates segment control signals and common control signals. The OLED driver circuit according to a general embodiment of the display system of the present invention comprises an OLED segment driver with a corresponding segment interface adopter processing the segment control signals from the LCD controller, and an OLED common driver with a corresponding common interface adopter processing the common control signals from the LCD controller. According to a further embodiment, the display system further comprises a drive strength selector controlling the drive strength in the OLED segment driver. The display system according to the present invention can also include a drive strength selector controlling the drive strength in the OLED common driver.
摘要翻译：本发明提供一种显示系统，包括液晶显示器（LCD）控制器和有机发光二极管（OLED）驱动电路。 LCD控制器可以是单声道超扭曲向列（STN）和灰度级和彩色薄膜晶体管（TFT）控制器。 LCD控制器处理通用格式数据，因此产生段控制信号和公共控制信号。根据本发明的显示系统的一般实施例的OLED驱动器电路包括具有相应的段接口采用器的OLED段驱动器，其处理来自LCD控制器的段控制信号，以及具有对应的公共接口采用器处理的OLED公共驱动器来自LCD控制器的通用控制信号。根据另一实施例，显示系统还包括控制OLED段驱动器中的驱动强度的驱动强度选择器。根据本发明的显示系统还可以包括控制OLED公共驱动器中的驱动强度的驱动强度选择器。

9. 发明授权

US10452219B2 Touch sensor 有权
公开(公告)号：US10452219B2
公开(公告)日：2019-10-22
申请号：US15886864
申请日：2018-02-02
申请人： Solomon Systech Limited
发明人： Justin Anthony Church , David Brent Guard
IPC分类号： G06F3/044 , G06F3/0354 , G06F3/041
摘要： In a capacitive touch sensor device, to avoid floating touches causing signal inversion in mutual capacitance measurements, a segmented conductive layer of conductive material is embedded in the touch panel. The segmented conductive layer comprises a plurality of segments of the conductive material which are separated by gaps. The segmented conductive layer effectively pre-loads the mutual capacitance of the touch sensor to the same or similar level of that of a floating touch of the maximum size for which it is desired to avoid signal inversion.

10. 发明授权

US10235002B2 Touch sensor 有权
公开(公告)号：US10235002B2
公开(公告)日：2019-03-19
申请号：US15886862
申请日：2018-02-02
申请人： Solomon Systech Limited
发明人： Justin Anthony Church , David Brent Guard
IPC分类号： G06F3/044 , G06F3/047 , G06F3/041
摘要： A capacitive touch sensor device comprising set of crossing X and Y electrodes whose crossing points form a two-dimensional array of nodes which define a touch sensitive area. As well as the main electrode spines which cross, referred to as zeroth order electrode branches, the electrodes have higher order branches, some of which interdigitate. By varying the dimensions of the electrode branches, such as width and length, the overall area of the X and Y electrodes can be varied relatively independently of each other. It is therefore possible to produce an electrode pattern in which the self capacitances of the X and Y electrodes have a certain ratio, e.g. unity, and thereby compensate for the aspect ratio of the touch sensitive area, and/or to have a certain absolute value, e.g. in order not to overload a touch-sensor controller to which the sensor is to be connected.

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