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1. 发明授权

US09495036B2 Input system utilizing stylus pen which receives electrical signals via connection link 有权
标题翻译：使用通过连接链接接收电信号的触控笔的输入系统
公开(公告)号：US09495036B2
公开(公告)日：2016-11-15
申请号：US13452936
申请日：2012-04-23
申请人： Yaw-Guang Chang
发明人： Yaw-Guang Chang
IPC分类号： G06F3/033 , G06F3/041 , G06F3/044 , G06F3/0354
CPC分类号： G06F3/0416 , G06F3/03545 , G06F3/044
摘要： An input system includes a touch panel, a control circuit, a stylus pen, and a connection link. The control circuit generates an electrical signal. The stylus pen is external to the control circuit. The connection link is coupled between the control circuit and the stylus pen, and transmits the electrical signal to the stylus pen, wherein the electrical signal is coupled to the touch panel via the stylus pen. The connection link may be a wired link or a wireless link.
摘要翻译：输入系统包括触摸面板，控制电路，触针笔和连接链接。控制电路产生电信号。触控笔在控制电路外部。连接链路耦合在控制电路和触针笔之间，并将电信号发送到触控笔，其中电信号经由触控笔耦合到触摸面板。连接链路可以是有线链路或无线链路。

2. 发明授权

US08466899B2 Touch panel 有权
标题翻译：触控面板
公开(公告)号：US08466899B2
公开(公告)日：2013-06-18
申请号：US12779557
申请日：2010-05-13
申请人： Yaw-Guang Chang
发明人： Yaw-Guang Chang
IPC分类号： G06F3/041 , G06F3/045 , G01R25/00 , G01R27/00
CPC分类号： G06F3/044 , G06F3/0416
摘要： A touch panel including a plurality of panel capacitors, a first switching unit, a second switching unit, a first charging unit, a control unit and a counter is provided. Each of the panel capacitors is sequentially selected as an object capacitor. The first switching unit and the second switching unit switch the voltages received by the two terminals of the object capacitor. The control unit controls a first charging current provided by the first charging unit according to the variation in the terminal voltages of the object capacitor, and generates a comparison signal accordingly. The counter counts the comparison signal and the touch panel identifies the variation in the capacitance value of the object capacitor by using a count value generated by the counter.
摘要翻译：提供了包括多个面板电容器，第一开关单元，第二开关单元，第一充电单元，控制单元和计数器的触摸面板。依次选择每个面板电容器作为对象电容器。第一开关单元和第二开关单元切换由对象电容器的两个端子接收的电压。控制单元根据对象电容器的端子电压的变化来控制由第一充电单元提供的第一充电电流，并且相应地生成比较信号。计数器对比较信号进行计数，并且触摸面板通过使用由计数器产生的计数值来识别对象电容器的电容值的变化。

3. 发明申请

US20120056842A1 Sensing Apparatus for Touch Panel and Sensing Method Thereof 审中-公开
标题翻译：触摸屏感应装置及其感应方法
公开(公告)号：US20120056842A1
公开(公告)日：2012-03-08
申请号：US12874428
申请日：2010-09-02
申请人： Yaw-Guang Chang
发明人： Yaw-Guang Chang
IPC分类号： G06F3/045 , G08C21/00
CPC分类号： G06F3/044 , G06F2203/04104
摘要： A sensing apparatus for a touch panel includes: sensitive capacitors formed between intersections of first electrodes and the second electrodes; a first sensing circuit, for positioning two locations of the first electrodes by sensing changed capacitance values of the sensitive capacitors corresponding to the two locations of the first electrodes; a second sensing circuit, for positioning two locations of the second electrodes by two objects by sensing changed capacitance values of the sensitive capacitors corresponding to the two locations of the second electrodes; and a third sensing circuit for sequentially positioning two locations of the scanned electrodes by sensing changed capacitance values of the sensitive capacitors corresponding to the two locations of the scanned electrodes, wherein a control circuit determines the two touch points according to the two locations of the first electrodes, and the two locations of the second electrodes and the two locations of the scanned electrodes.
摘要翻译：一种用于触摸屏的感测装置包括：形成在第一电极和第二电极的交点之间的敏感电容器; 第一感测电路，用于通过感测对应于第一电极的两个位置的敏感电容器的变化的电容值来定位第一电极的两个位置; 第二感测电路，用于通过感测对应于第二电极的两个位置的敏感电容器的变化的电容值来通过两个对象来定位第二电极的两个位置; 以及第三感测电路，用于通过检测对应于扫描电极的两个位置的敏感电容器的改变的电容值来顺序地定位扫描电极的两个位置，其中控制电路根据第一电极，以及第二电极的两个位置和扫描电极的两个位置。

4. 发明申请

US20100328237A1 TOUCH CONTROL SYSTEM FOR CONTROLLING TOUCH PANEL 审中-公开
标题翻译：用于控制面板的触控控制系统
公开(公告)号：US20100328237A1
公开(公告)日：2010-12-30
申请号：US12702314
申请日：2010-02-09
申请人： Yaw-Guang Chang , Yi-Long Yang
发明人： Yaw-Guang Chang , Yi-Long Yang
IPC分类号： G06F3/041
CPC分类号： G06F3/0416
摘要： A touch control system for controlling a touch panel includes a controller and a first sensing circuit. The controller generates and outputs a control signal. The first sensing circuit is coupled to the control device and to sensing lines of the touch panel, and the first sensing circuit receives the control signal from the controller, and generates at least one scan control signal according to the received control signal to determine a scan timing setting.
摘要翻译：用于控制触摸面板的触摸控制系统包括控制器和第一感测电路。控制器产生并输出控制信号。第一感测电路耦合到控制装置和感测触摸板的线路，并且第一感测电路接收来自控制器的控制信号，并且根据接收到的控制信号产生至少一个扫描控制信号以确定扫描定时设置。

5. 发明申请

US20100171539A1 SLEW RATE CONTROL CIRCUIT 有权
标题翻译：睡眠速率控制电路
公开(公告)号：US20100171539A1
公开(公告)日：2010-07-08
申请号：US12350924
申请日：2009-01-08
申请人： Yaw-Guang Chang , Lieh-Chiu Lin
发明人： Yaw-Guang Chang , Lieh-Chiu Lin
IPC分类号： H03K5/12
CPC分类号： H03K5/04 , H03K19/00361
摘要： A slew rate control circuit is disclosed. An output impedance buffer and a slew rate buffer are coupled in parallel. An edge detector detects an input signal to accordingly control the output impedance buffer and the slew rate buffer, such that the input signal passes through the slew rate buffer during a rising or falling time period, and the input signal only passes through the output impedance buffer during a stable time period, thereby conforming to specification requirements for the slew rate and the output impedance at the same time.
摘要翻译：公开了一种转换速率控制电路。输出阻抗缓冲器和压摆率缓冲器并联耦合。边沿检测器检测输入信号以相应地控制输出阻抗缓冲器和转换速率缓冲器，使得输入信号在上升或下降时间段期间通过转换速率缓冲器，并且输入信号仅通过输出阻抗缓冲器在稳定的时间段内，同时符合压摆率和输出阻抗的规格要求。

6. 发明申请

US20100118011A1 DISPLAY SYSTEM 有权
标题翻译：显示系统
公开(公告)号：US20100118011A1
公开(公告)日：2010-05-13
申请号：US12691698
申请日：2010-01-21
申请人： Ssu-Chieh Yang , Yaw-Guang Chang , Hsien-Ting Huang
发明人： Ssu-Chieh Yang , Yaw-Guang Chang , Hsien-Ting Huang
IPC分类号： G06F3/038 , G09G3/36
CPC分类号： G06F3/038 , G09G3/3696 , G09G2330/02
摘要： A display system includes a display device, a driving circuit, a flexible printed circuit (FPC), a charge pump circuit and a control circuit. The driving circuit is disposed on the display device, for driving the display device. The FPC is externally coupled to the display device. The charge pump circuit is disposed on the FPC, for generating at least an output voltage to the driving circuit. The control circuit is disposed on the display device and coupled to the driving circuit, for generating a plurality of control signals to control the charge pump circuit. The charge pump circuit has a plurality of control ports coupled to the control circuit for receiving the control signals generated from the control circuit, respectively.
摘要翻译：显示系统包括显示装置，驱动电路，柔性印刷电路（FPC），电荷泵电路和控制电路。驱动电路设置在显示装置上，用于驱动显示装置。 FPC外部耦合到显示装置。电荷泵电路设置在FPC上，用于至少向驱动电路产生输出电压。控制电路设置在显示装置上并耦合到驱动电路，用于产生多个控制信号以控制电荷泵电路。电荷泵电路具有耦合到控制电路的多个控制端口，用于分别接收从控制电路产生的控制信号。

7. 发明申请

US20090146738A1 OPERATIONAL AMPLIFIER 有权
标题翻译：操作放大器
公开(公告)号：US20090146738A1
公开(公告)日：2009-06-11
申请号：US12117180
申请日：2008-05-08
申请人： Yaw-Guang Chang
发明人： Yaw-Guang Chang
IPC分类号： H03F3/45
CPC分类号： H03F1/086 , H03F3/3022 , H03F3/4521 , H03F2203/30015 , H03F2203/45626 , H03F2203/45648 , H03F2203/45726
摘要： The operational amplifier adapting to a source driver is provided herein. The operational amplifier includes the input module, the first and the second current mirror module, the switch control module and output stage module, wherein the input module includes the first and the second differential pairs. The first current mirror module provides the first bias current to the first differential pairs and outputs the first mirrored current. The second current mirror module receives the second bias currents and the second mirrored current from the second differential pairs. The first and the second mirrored currents are respectively generated by mirroring the first and the second bias currents. The switch control module adjusts the first and the second bias currents for controlling the operation of the output stage module. The output stage module generates an output voltage terminal to a panel load according to the first and the second mirrored currents.
摘要翻译：本文提供了适用于源驱动器的运算放大器。运算放大器包括输入模块，第一和第二电流镜模块，开关控制模块和输出级模块，其中输入模块包括第一和第二差分对。第一电流镜模块向第一差分对提供第一偏置电流并输出第一镜像电流。第二电流镜模块从第二差分对接收第二偏置电流和第二镜像电流。第一和第二镜像电流分别通过镜像第一和第二偏置电流而产生。开关控制模块调节用于控制输出级模块的操作的第一和第二偏置电流。输出级模块根据第一和第二镜像电流产生到面板负载的输出电压端子。

8. 发明申请

US20080007545A1 Output circuit in a driving circuit and driving method of a display device 有权
标题翻译：驱动电路中的输出电路和显示装置的驱动方法
公开(公告)号：US20080007545A1
公开(公告)日：2008-01-10
申请号：US11483080
申请日：2006-07-06
申请人： Yaw-Guang Chang , Ming-Cheng Chiu
发明人： Yaw-Guang Chang , Ming-Cheng Chiu
IPC分类号： G09G5/00
CPC分类号： G09G3/3688 , G09G2310/0289
摘要： An output circuit whose outputting signals having large voltage swing by using switches with low voltage tolerance is provided. The output circuit includes: operation amplifiers, receiving positive input voltage and negative input voltages, respectively; transmission gates, passing output signals from the operation amplifiers, respectively; switch transistors, passing output signals from the transmission gates as an output signal of the output circuit, pulling up the output signal from one of the transmission gates, and pulling down the output signal from the other of the transmission gates.
摘要翻译：提供一种通过使用具有低电压公差的开关输出具有较大电压摆幅的信号的输出电路。输出电路包括：运算放大器，分别接收正输入电压和负输入电压; 传输门，分别从运算放大器传递输出信号; 开关晶体管，将来自传输门的输出信号作为输出电路的输出信号，从一个传输门上拉出输出信号，并从另一个传输门拉下输出信号。

9. 发明申请

US20080001800A1 SOURCE DRIVER OF LIQUID CRYSTAL DISPLAY AND THE DRIVING METHOD 有权
标题翻译：液晶显示器的驱动器和驱动方法
公开(公告)号：US20080001800A1
公开(公告)日：2008-01-03
申请号：US11428196
申请日：2006-06-30
申请人： Yaw-Guang Chang
发明人： Yaw-Guang Chang
IPC分类号： H03M1/66
CPC分类号： H04N5/185 , G09G3/3688 , G09G3/3696 , G09G2310/0291 , G09G2330/021
摘要： A source driver has many channels, and each channel has a DAC, a clamp circuit and a fine tune circuit. The DAC selects a first reference voltage and a second reference voltage from a plurality of gamma voltages according to (N-1) most significant bits of an N-bit signal. The clamp circuit receives the two reference voltages and clamps an output voltage between the two reference voltages. The fine tune circuit adjusts the clamped output voltage to a target level according to the least significant bit of the N-bit signal.
摘要翻译：源极驱动器具有多个通道，每个通道都有一个DAC，一个钳位电路和一个微调电路。 DAC根据N位信号的（N-1）个最高有效位从多个伽玛电压中选择第一参考电压和第二参考电压。钳位电路接收两个参考电压并钳位两个参考电压之间的输出电压。微调电路根据N位信号的最低有效位将钳位输出电压调整到目标电平。

10. 发明授权

US06933776B2 Signal demodulating method of a two-phase frequency shift keying (FSK) digital demodulator 失效
标题翻译：两相频移键控（FSK）数字解调器的信号解调方法
公开(公告)号：US06933776B2
公开(公告)日：2005-08-23
申请号：US10390002
申请日：2003-03-18
申请人： Jen-Sheng Huang , Yaw-Guang Chang , Li-Cheng Hsu , Jinn-Ja Chang
发明人： Jen-Sheng Huang , Yaw-Guang Chang , Li-Cheng Hsu , Jinn-Ja Chang
IPC分类号： H04L27/156 , H03D3/00
CPC分类号： H04L27/1563
摘要： There is provided a signal demodulating method of a two-phase frequency shift keying (FSK) digital demodulator. The method utilizes at least a detect circuit respectively detecting and collecting a positive edge signal and a negative edge signal of an intermediate frequency signal. Then, two n-bit ripple counters are utilized to refer to a threshold value and then receiving the positive and negative edge signal as a switch signal to reset the threshold value as an initial value of counters so as to start to count and compare to output a positive edge data bit and a negative edge data bit. Last, a hard decision logic circuit is used to perform a frequency-descending decision in accordance with the positive and negative edge data bit so as to send a base frequency signal. The method can decrease the logic gate counts, shorten the signal delay time, and increase the resolution of the demodulation. The present invention allows for; easy and practical signal demodulating method results, which can match the compact trend of the wireless products.
摘要翻译：提供了一种两相频移键控（FSK）数字解调器的信号解调方法。该方法至少利用检测和收集中频信号的上升沿信号和负边沿信号的检测电路。然后，使用两个n位纹波计数器来指代阈值，然后接收正和负边缘信号作为开关信号，以将阈值复位为计数器的初始值，以便开始对输出进行计数和比较上升沿数据位和负沿数据位。最后，使用硬判决逻辑电路根据正和负边沿数据位执行频率下降判定，以发送基频信号。该方法可以减少逻辑门数，缩短信号延迟时间，提高解调分辨率。本发明允许简单实用的信号解调方法结果，可以匹配无线产品的紧凑趋势。

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