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1. 发明授权

US08072441B2 Device and method for detecting multiple touch points 有权
标题翻译：用于检测多个接触点的装置和方法
公开(公告)号：US08072441B2
公开(公告)日：2011-12-06
申请号：US12475591
申请日：2009-05-31
申请人： Chen Zhang
发明人： Chen Zhang
IPC分类号： G06F3/045
CPC分类号： G06F3/045
摘要： Techniques for detecting multiple touch points for touch screens are disclosed. A touch screen includes a first conductive layer and a second conductive layer, each conductive layer having a positive terminal and a negative terminal. Efficient operations of detecting multiple points on the touch screen are described using various voltage/currents differences from the positive and negative terminals of the first and second conductive layers.
摘要翻译：公开了用于检测触摸屏的多个触摸点的技术。触摸屏包括第一导电层和第二导电层，每个导电层具有正极端子和负极端子。使用与第一和第二导电层的正极和负极端子的不同的电压/电流差来描述检测触摸屏上的多个点的有效操作。

2. 发明授权

US07986499B2 Current limiting circuit and voltage regulator using the same 有权
标题翻译：限流电路和电压调节器使用相同
公开(公告)号：US07986499B2
公开(公告)日：2011-07-26
申请号：US12343273
申请日：2008-12-23
申请人： Zhao Wang , Hang Yin , Wenbo Tian
发明人： Zhao Wang , Hang Yin , Wenbo Tian
IPC分类号： H02H9/08
CPC分类号： G05F3/262
摘要： Techniques pertaining to a voltage regulator with a current limiting circuit having low quiescent current are disclosed. According to one aspect of the present invention, a current limiting circuit is provided for limiting a current passing through an output pass circuit of a voltage regulator, the current limiting circuit comprises: a current sampling circuit for sampling the current passing through the output pass circuit to obtain a duplicated current being proportional to the current passing through the output pass circuit; a current mirror circuit for producing a mirror current being proportional to the duplicated current with the duplicated current as a reference current; a current to voltage converter for producing a voltage being proportional to the mirror current; and a voltage comparator for comparing the voltage produced by the current to voltage converter with a threshold voltage and turning off the output pass circuit when the voltage produced by the current to voltage converter is larger than or equal to the threshold voltage.
摘要翻译：公开了具有具有低静态电流的限流电路的电压调节器的技术。根据本发明的一个方面，提供限流电路来限制通过电压调节器的输出通路的电流，该限流电路包括：电流采样电路，用于对通过输出通路的电流进行采样以获得与通过输出通过电路的电流成比例的复制电流; 用于产生与复制电流成比例的反射电流的电流镜电路，其中复制电流作为参考电流; 用于产生与镜电流成比例的电压的电流 - 电压转换器; 以及电压比较器，用于将电流与电压转换器产生的电压与阈值电压进行比较，并且当由电流 - 电压转换器产生的电压大于或等于阈值电压时，关闭输出通过电路。

3. 发明授权

US07876844B2 Apparatus and method for determining positions of pilot sub-carriers in an OFDM symbol 有权
标题翻译：用于确定OFDM符号中的导频子载波的位置的装置和方法
公开(公告)号：US07876844B2
公开(公告)日：2011-01-25
申请号：US12023034
申请日：2008-01-31
申请人： JingHui Lu
发明人： JingHui Lu
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L27/2647 , H04L5/0048 , H04L5/005 , H04L27/2659
摘要： Techniques for determining positions of pilot sub-carriers in a received OFDM symbol are described. Components of pilot sub-carriers from a theoretical OFDM symbol are extracted to form M theoretical pilot sequences according to M possible distributions in frequency domain of the pilot sub-carriers in the theoretical OFDM symbol. Components of pilot sub-carriers from the received OFDM symbol are also extracted to form K hypothetical pilot sequences according to K possible distributions in frequency domain of pilot sub-carriers in the received OFDM symbol. The correlations of every two adjacent elements of the theoretical pilot sequences are calculated to get M corresponding theoretical correlation sequences, and the correlations of every two adjacent elements of the hypothetical pilot sequence are also calculated to get K corresponding hypothetical correlation sequences. Sequence correlations between the hypothetical correlation sequences and the theoretical correlation sequences are then calculated. The positions of pilot sub-carriers in the received OFDM symbol can be determined from the one that has the maximum modulus value.
摘要翻译：描述用于确定接收的OFDM符号中的导频子载波的位置的技术。提取来自理论OFDM符号的导频子载波的组成部分，以根据理论OFDM符号中的导频子载波的频域中的M个可能分布形成M个理论导频序列。根据所接收的OFDM符号中的导频子载波的频域中的K个可能分布，也提取来自接收到的OFDM符号的导频子载波的组成部分，形成K个假想导频序列。计算理论导频序列的每两个相邻元素的相关性以得到M个对应的理论相关序列，并且还计算假设导频序列的每两个相邻元素的相关性以获得K个相应的假设相关序列。然后计算假设相关序列与理论相关序列之间的序列相关性。可以从具有最大模数值的导频子载波中确定接收的OFDM符号中的导频子载波的位置。

4. 发明授权

US07990352B2 Monochromatic liquid crystal display for colors 有权
标题翻译：单色液晶显示器用于颜色
公开(公告)号：US07990352B2
公开(公告)日：2011-08-02
申请号：US11065699
申请日：2005-02-23
申请人： Darwin Hu , Kebin Li
发明人： Darwin Hu , Kebin Li
IPC分类号： G09G3/36
CPC分类号： G06F3/147 , G02F1/133603 , G02F1/133621 , G02F2001/133622 , G09G3/3413 , G09G3/3611 , G09G2300/0465 , G09G2310/0235 , G09G2360/145
摘要： Techniques for providing backlight techniques in liquid crystal flat panel displays are disclosed. According to embodiment, the backlighting includes three color groups of light emitting diodes that are turned on successively. Pixels in an LCD are controlled in accordance with a display signal to transmit none, all or a determined amount of one or more of the colored lights from the three color groups of light emitting diodes in a cycle, resulting in an LCD with vivid colors and minimized tailing effects.
摘要翻译：公开了用于在液晶平板显示器中提供背光技术的技术。根据实施例，背光包括依次接通的三个发光二极管组。 LCD中的像素根据显示信号进行控制，以在一个周期内从发光二极管的三个颜色组中发射全部或确定量的一个或多个彩色光，导致具有鲜艳颜色的LCD，尽量减少拖尾效应。

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