公开(公告)号：US09176597B2

公开(公告)日：2015-11-03

申请号：US13539731

申请日：2012-07-02

申请人： Jenn Woei Soo ,  Kien Beng Tan

发明人： Jenn Woei Soo ,  Kien Beng Tan

IPC分类号： G01R27/26 ,  G06F3/03 ,  G01B7/02

CPC分类号： G06F3/03 ,  G01B7/023

摘要： A directional capacitive proximity sensor circuit capable of providing directional capacitive proximity sensing includes one or more guard electrodes, a first sensor, and a second sensor. The directional capacitive proximity sensor is installed in a device such that the first sensor is positioned near a first component of the device, and the second sensor is positioned near a second component of the device. The first and second sensors measure a capacitance to detect proximity of a user relative to the respective sensor, wherein the detected proximity is interpreted to determine a direction in which the user proximity is detected relative to the directional capacitive proximity sensor circuit. The guard electrode is provided to mitigate stray capacitance to reduce error in the capacitance measurements obtained by the first and second sensors.

摘要翻译： 能够提供定向电容式接近感测的方向电容式接近传感器电路包括一个或多个保护电极，第一传感器和第二传感器。 定向电容式接近传感器安装在设备中，使得第一传感器位于设备的第一部件附近，并且第二传感器位于设备的第二部件附近。 第一和第二传感器测量电容以检测用户相对于相应传感器的接近度，其中所述检测到的接近度被解释为确定相对于所述方向电容式接近传感器电路检测到所述用户接近度的方向。 提供保护电极以减轻杂散电容以减少由第一和第二传感器获得的电容测量误差。

公开(公告)号：US09164629B2

公开(公告)日：2015-10-20

申请号：US13567331

申请日：2012-08-06

申请人： Jenn Woei Soo ,  Kien Beng Tan ,  Tze Yong Poh

发明人： Jenn Woei Soo ,  Kien Beng Tan ,  Tze Yong Poh

IPC分类号： G06F3/041 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/0488 ,  G06F3/0484

CPC分类号： G06F3/044 ,  G06F3/03547 ,  G06F3/041 ,  G06F3/04847 ,  G06F3/04883 ,  G06F2203/04103

摘要： A touch screen having a capacitive touch-sensitive pad overlaying a display area incorporates one or more slide features each having conductive plates. The conductive plates are located outside the display area of the touch screen and are powered via one or more connections to existing touch sensor circuitry comprising the touch-sensitive pad. The slide features of the touch screen do not obstruct a user's view of the display screen and, when compared to conventional touch screen slide features, reduce the circuitry required for detecting and/or processing a slide touch.

摘要翻译： 具有覆盖显示区域的电容式触敏垫的触摸屏包括一个或多个各自具有导电板的滑动特征。 导电板位于触摸屏的显示区域的外部，并且通过一个或多个与包括触敏板的触摸传感器电路的连接来供电。 触摸屏的幻灯片功能不会妨碍用户对显示屏幕的观察，并且与传统的触摸屏幻灯片特征相比，减少了检测和/或处理幻灯片触摸所需的电路。

公开(公告)号：US20150145801A1

公开(公告)日：2015-05-28

申请号：US13619328

申请日：2012-09-14

申请人： Paolo Angelini ,  Giovanni Carlo Tripoli ,  Ernesto Lasalandra ,  Tommaso Ungaretti ,  Kien Beng Tan ,  Yannick Guedon ,  Dianbo Guo ,  Sze-Kwang Tan

发明人： Paolo Angelini ,  Giovanni Carlo Tripoli ,  Ernesto Lasalandra ,  Tommaso Ungaretti ,  Kien Beng Tan ,  Yannick Guedon ,  Dianbo Guo ,  Sze-Kwang Tan

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G06F3/0416

摘要： Capacitance sensing circuits and methods are provided. The capacitance sensing circuit includes a capacitance-to-voltage converter configured to receive a signal from a capacitance to be sensed and to provide an output signal representative of the capacitance, an output chopper configured to convert the output signal of the capacitance-to-voltage converter to a sensed voltage representative of the capacitance to be sensed, an analog accumulator configured to accumulate sensed voltages during an accumulation period of NA sensing cycles and to provide an accumulated analog value, an amplifier configured to amplify the accumulated analog value, and an analog-to-digital converter configured to convert the amplified accumulated analog value to a digital value representative of the capacitance to be sensed. The analog accumulator may include a low pass filter having a frequency response to filter wideband noise.

摘要翻译： 提供电容感测电路和方法。 电容感测电路包括：电容 - 电压转换器，被配置为从要感测的电容接收信号并提供表示电容的输出信号;输出斩波器，被配置为转换电容 - 电压的输出信号 转换器到感测的电压，代表要感测的电容;模拟累加器，被配置为在NA感测周期的累积周期期间累积感测电压并提供累加的模拟值，被配置为放大所累积的模拟值的放大器和模拟 配置为将放大的累积模拟值转换为表示要感测的电容的数字值。 模拟累加器可以包括具有对滤波器宽带噪声的频率响应的低通滤波器。

公开(公告)号：US08344928B2

公开(公告)日：2013-01-01

申请号：US12943241

申请日：2010-11-10

申请人： Yannick Guedon ,  Kien Beng Tan

发明人： Yannick Guedon ,  Kien Beng Tan

IPC分类号： H03M1/12

CPC分类号： H03M3/356 ,  H03K17/962 ,  H03M3/43 ,  H03M3/456

摘要： A capacitance-to-digital converter for an extended range of capacitances includes a reference capacitor and one or more offset capacitors. Electrical charge accumulated in the offset capacitors is used to at least partially cancel the charge accumulated in a sensed capacitance to facilitate matching with a charge accumulated in the reference capacitor. The residual charge is passed to an integrator, the output from which is quantized and used to control switching of the capacitors. Immunity to tonal external noises and improved conversion speed are achieved by controlling the capacitor switching with a spread spectrum clock. The capacitance-to-digital converter may be used, for example, for sensing of the capacitances of capacitive elements in touch and proximity displays or other user interfaces.

摘要翻译： 用于扩展电容范围的电容数字转换器包括参考电容器和一个或多个失调电容器。 积分在偏移电容器中的电荷用于至少部分地消除在感测电容中累积的电荷，以便于与参考电容器中累积的电荷匹配。 剩余电荷被传递到积分器，其输出被量化并用于控制电容器的开关。 通过用扩频时钟控制电容器切换，实现对音调外部噪声和转换速度的提高。 电容数字转换器可以用于例如感​​测触摸和接近显示器或其他用户接口中的电容元件的电容。

公开(公告)号：US20120112817A1

公开(公告)日：2012-05-10

申请号：US12943241

申请日：2010-11-10

申请人： Yannick Guedon ,  Kien Beng Tan

发明人： Yannick Guedon ,  Kien Beng Tan

IPC分类号： H03K17/945 ,  H03M1/12

CPC分类号： H03M3/356 ,  H03K17/962 ,  H03M3/43 ,  H03M3/456

摘要： A capacitance-to-digital converter for an extended range of capacitances includes a reference capacitor and one or more offset capacitors. Electrical charge accumulated in the offset capacitors is used to at least partially cancel the charge accumulated in a sensed capacitance to facilitate matching with a charge accumulated in the reference capacitor. The residual charge is passed to an integrator, the output from which is quantized and used to control switching of the capacitors. Immunity to tonal external noises and improved conversion speed are achieved by controlling the capacitor switching with a spread spectrum clock. The capacitance-to-digital converter may be used, for example, for sensing of the capacitances of capacitive elements in touch and proximity displays or other user interfaces.

摘要翻译： 用于扩展电容范围的电容数字转换器包括参考电容器和一个或多个失调电容器。 积分在偏移电容器中的电荷用于至少部分地消除在感测电容中累积的电荷，以便于与参考电容器中累积的电荷匹配。 剩余电荷被传递到积分器，其输出被量化并用于控制电容器的开关。 通过用扩频时钟控制电容器切换，实现对音调外部噪声和转换速度的提高。 电容数字转换器可以用于例如感​​测触摸和接近显示器或其他用户接口中的电容元件的电容。

公开(公告)号：US20110133810A1

公开(公告)日：2011-06-09

申请号：US12633597

申请日：2009-12-08

申请人： Dianbo Guo ,  Eng Jye Ng ,  Kien Beng Tan

发明人： Dianbo Guo ,  Eng Jye Ng ,  Kien Beng Tan

IPC分类号： H03L5/00

CPC分类号： H03K17/164

摘要： In one embodiment, a semiconductor circuit for coupling a first node to a second node includes a first transistor having a first terminal coupled to the first node, a second terminal coupled to the second node, and a control terminal coupled to a control node. The circuit also includes a level shifting circuit having a series diode for coupling a bulk terminal of the first transistor to the control node, and a supply coupling circuit coupled between a first power supply node and the control node.

摘要翻译： 在一个实施例中，用于将第一节点耦合到第二节点的半导体电路包括具有耦合到第一节点的第一终端的第一晶体管，耦合到第二节点的第二终端以及耦合到控制节点的控制终端。 电路还包括具有用于将第一晶体管的体端子耦合到控制节点的串联二极管的电平移动电路和耦合在第一电源节点和控制节点之间的电源耦合电路。

公开(公告)号：US20140002108A1

公开(公告)日：2014-01-02

申请号：US13539704

申请日：2012-07-02

申请人： Jenn Woei Soo ,  Kien Beng Tan

发明人： Jenn Woei Soo ,  Kien Beng Tan

IPC分类号： G01R27/32

CPC分类号： H03K17/9622 ,  H03K2217/96074 ,  H03K2217/960765

摘要： A capacitive proximity sensor circuit capable of distinguishing between instances of detected user proximity includes one or more guard electrodes, a first sensor, and a second sensor. The capacitive proximity sensor is installed in a device such that a first sensor faces a first component of the device, and the second sensor faces a second component of the device. The first and second sensors measure a capacitance to detect proximity of a user relative to the respective sensor. The guard electrode is provided to mitigate stray capacitance to reduce error in the capacitance measurements obtained by the first and second sensors.

摘要翻译： 能够区分检测到的用户接近的实例的电容式接近传感器电路包括一个或多个保护电极，第一传感器和第二传感器。 电容式接近传感器安装在设备中，使得第一传感器面向设备的第一部件，并且第二传感器面向设备的第二部件。 第一和第二传感器测量电容以检测用户相对于相应传感器的接近度。 提供保护电极以减轻杂散电容以减少由第一和第二传感器获得的电容测量误差。

公开(公告)号：US08558726B2

公开(公告)日：2013-10-15

申请号：US13339649

申请日：2011-12-29

申请人： Chee Weng Cheong ,  Kien Beng Tan

发明人： Chee Weng Cheong ,  Kien Beng Tan

IPC分类号： H03M1/10

CPC分类号： H03M1/108 ,  H03M1/46

摘要： Complete testing of an analog-to-digital converter (ADC) can be carried out using digital signals and at high speeds. Circuit elements are added to an ADC so that a first phase of testing may be carried out using a limited number of analog test voltages. The ADC may then be reconfigured using added circuit elements to disable conventional analog-to-digital conversion. A digital signal may then be applied to the ADC to rapidly test all switching elements used in analog-to-digital conversion. According to some implementations, testing times for ADCs may be reduced from hours to milliseconds.

摘要翻译： 模数转换器（ADC）的完整测试可以使用数字信号和高速进行。 将电路元件添加到ADC，使得可以使用有限数量的模拟测试电压来执行第一阶段的测试。 然后可以使用附加的电路元件重新配置ADC，以禁用常规的模数转换。 然后可以将数字信号施加到ADC以快速测试用于模数转换的所有开关元件。 根据一些实施方案，ADC的测试时间可以从几小时减少到几毫秒。

公开(公告)号：US07408313B1

公开(公告)日：2008-08-05

申请号：US11321766

申请日：2005-12-28

申请人： Chan Sang Kong ,  Kien Beng Tan ,  Xiao Yu Miao

发明人： Chan Sang Kong ,  Kien Beng Tan ,  Xiao Yu Miao

IPC分类号： H02P3/00 ,  H03K3/00

CPC分类号： G11B5/09 ,  G11B5/022

摘要： A circuit is adapted to activate a writer head of a data storage media drive during both the boost periods as well as the steady state periods. The current supplied to the writer head during the boost periods exceeds the steady state current and flows between positive and negative voltage supplies so as to provide the required magnetic flux change in the inductor disposed in the write head. During the steady state periods, a switch circuit is turned on to provide a second current path across the writer head. During the steady state periods, the current flows between the positive voltage supply and the ground to reduce power consumption. The switch circuit is turned off during the boost periods.

摘要翻译： 电路适于在升压期间和稳定状态期间激活数据存储介质驱动器的写入头。 在升压期间提供给写入头的电流超过稳态电流，并且在正和负电压源之间流动，以便在设置在写入头中的电感器中提供所需的磁通量变化。 在稳定状态期间，开关电路导通以提供穿过写入头的第二电流路径。 在稳态期间，电流在正电源和地之间流动，以降低功耗。 开关电路在升压期间关闭。

公开(公告)号：US6060760A

公开(公告)日：2000-05-09

申请号：US910269

申请日：1997-08-13

申请人： Kien Beng Tan

发明人： Kien Beng Tan

IPC分类号： H01L27/08 ,  H01L29/40

CPC分类号： H01L27/0802

摘要： A resistor network having a precise ratio of resistances of all resistors within the network while having a compact layout to minimize area is described. The integrated circuit resistor network has a plurality of unit resistors. Each unit resistor is composed of a thin film resistive material. The area of the thin film resistive material to form the unit resistor is a median value of the resistor elements to be formed into said integrated circuit resistor network. Each unit resistor has a contact means to connect to the plurality of unit resistors. A plurality of metal interconnection segments will connect to the contact means to form said integrated circuit resistor network. A plurality of metal conductive segments are connected to a metal interconnection segments and to external circuitry to connect the external circuitry to the integrated circuit resistor network.

摘要翻译： 描述了具有网络内所有电阻器的精确电阻比的电阻网络，同时具有紧凑的布局以使面积最小化。 集成电路电阻网络具有多个单位电阻器。 每个单元电阻由薄膜电阻材料组成。 形成单元电阻器的薄膜电阻材料的面积是要形成所述集成电路电阻网络的电阻元件的中值。 每个单元电阻器具有连接到多个单元电阻器的接触装置。 多个金属互连段将连接到接触装置以形成所述集成电路电阻网络。 多个金属导电段连接到金属互连段和外部电路以将外部电路连接到集成电路电阻网络。