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1. 发明申请

US20110199331A1 ELECTROSTATIC CAPACITY TYPE TOUCH SENSOR 有权
标题翻译：静电容量式触摸传感器
公开(公告)号：US20110199331A1
公开(公告)日：2011-08-18
申请号：US13029655
申请日：2011-02-17
申请人： Takayasu OTAGAKI , Atsuhiro Ichikawa , Hiroya Ito , Kazuhiro Hasegawa
发明人： Takayasu OTAGAKI , Atsuhiro Ichikawa , Hiroya Ito , Kazuhiro Hasegawa
IPC分类号： G06F3/045
CPC分类号： G06F3/044
摘要： The invention provides an electrostatic capacity type touch sensor that is not influenced by a parasitic capacitor formed between a sensor line connected to a touch sensor pad and other signal line and provides a stable sensor output. A sensor line connected to a touch sensor pad is connected to a non-inverting input terminal (+) of a charge amplifier. An LED is disposed in the touch sensor pad, and the cathode of the LED is connected to an LED signal line. Since the LED signal line is disposed adjacent to the sensor line, a parasitic capacitor is formed between the LED signal line and the sensor line. In order to keep the capacitance of this parasitic capacitor constant, a pull-up resistor is connected to the LED signal line. The LED signal line is biased to a power supply potential Vdd by the pull-up resistor.
摘要翻译：本发明提供一种静电容量型触摸传感器，其不受在连接到触摸传感器焊盘的传感器线和其它信号线之间形成的寄生电容的影响，并提供稳定的传感器输出。连接到触摸传感器垫的传感器线连接到电荷放大器的非反相输入端（+）。在触摸传感器衬垫中设置LED，并且LED的阴极连接到LED信号线。由于LED信号线与传感器线相邻配置，所以在LED信号线和传感器线之间形成寄生电容。为了保持该寄生电容的电容恒定，上拉电阻连接到LED信号线。 LED信号线被上拉电阻偏置到电源电位Vdd。

2. 发明申请

US20110199105A1 ELECTROSTATIC CAPACITY TYPE TOUCH SENSOR 有权
标题翻译：静电容量式触摸传感器
公开(公告)号：US20110199105A1
公开(公告)日：2011-08-18
申请号：US13029701
申请日：2011-02-17
申请人： Takayasu OTAGAKI , Atsuhiro Ichikawa , Hiroya Ito , Kazuhiro Hasegawa
发明人： Takayasu OTAGAKI , Atsuhiro Ichikawa , Hiroya Ito , Kazuhiro Hasegawa
IPC分类号： G01R27/26
CPC分类号： G06F3/044 , G06F3/0418
摘要： This invention offers an electrostatic capacity type touch sensor that can be calibrated in a short period of time at a moment when a finger of operator or the like does not touch a touch pad. An absolute value of a difference (AD0−AD2) between a first output voltage AD0 and a third output voltage AD2 is compared with a first threshold value Vtr1 in step S10. When the difference (AD0−AD2) between the output voltages is smaller than the first threshold value Vtr1, it is judged that the finger of operator or the like does not touch the touch pad, and it is judged which of an offset in a second output voltage AD1 and an offset in the third output voltage AD2 is smaller than the other. When the offset in the second output voltage AD1 is smaller than the offset in the third output voltage AD2, the modification to the second calibration data X1 is permitted.
摘要翻译：本发明提供了一种静电容量型触摸传感器，其可以在操作者的手指等触摸不触摸触摸板的时刻在短时间内进行校准。在步骤S10中将第一输出电压AD0和第三输出电压AD2之间的差（AD0-AD2）的绝对值与第一阈值Vtr1进行比较。当输出电压之间的差（AD0-AD2）小于第一阈值Vtr1时，判断操作者的手指等不接触触摸板，并且判断在第二阈值中哪一个偏移输出电压AD1和第三输出电压AD2中的偏移小于另一个。当第二输出电压AD1中的偏移小于第三输出电压AD2中的偏移时，允许对第二校准数据X1的修改。

3. 发明申请

US20120001869A1 ELECTROSTATIC CAPACITY TYPE TOUCH SENSOR 有权
标题翻译：静电容量式触摸传感器
公开(公告)号：US20120001869A1
公开(公告)日：2012-01-05
申请号：US13175277
申请日：2011-07-01
申请人： Hiroya ITO , Takayasu OTAGAKI , Atsuhiro ICHIKAWA , Kazuhiro HASEGAWA
发明人： Hiroya ITO , Takayasu OTAGAKI , Atsuhiro ICHIKAWA , Kazuhiro HASEGAWA
IPC分类号： G06F3/045
CPC分类号： G06F3/03547 , G06F3/044 , H03K17/962 , H03K2017/9602
摘要： There is offered an electrostatic capacity type touch sensor capable of detecting a large number of touch positions with high accuracy. The electrostatic capacity type touch sensor is composed of a touch panel and a signal processing circuit. The touch panel is structured to include first through fourth detection electrodes, first and second common electric potential lines, a common electric potential wiring, a common electric potential terminal and first through fourth output terminals disposed on an insulating substrate. The signal processing circuit is structured to include a clock generator, a selection circuit, a charge amplifier, an A/D converter and an arithmetic unit. The charge amplifier detects a change in capacitance induced by that a finger of an operator touches the first through fourth detection electrodes.
摘要翻译：提供了能够高精度地检测大量触摸位置的静电电容型触摸传感器。静电电容型触摸传感器由触摸面板和信号处理电路构成。触摸面板被构造为包括第一至第四检测电极，第一和第二公共电位线，公共电位布线，公共电位端子和布置在绝缘基板上的第一至第四输出端子。信号处理电路被构造成包括时钟发生器，选择电路，电荷放大器，A / D转换器和运算单元。电荷放大器检测由操作者的手指触摸第一至第四检测电极而引起的电容变化。

4. 发明申请

US20120062464A1 TOUCH SENSOR 审中-公开
标题翻译：触摸传感器
公开(公告)号：US20120062464A1
公开(公告)日：2012-03-15
申请号：US13230392
申请日：2011-09-12
申请人： Takayasu OTAGAKI , Atsuhiro Ichikawa , Hiroya Ito
发明人： Takayasu OTAGAKI , Atsuhiro Ichikawa , Hiroya Ito
IPC分类号： G06F3/02
CPC分类号： G06F3/044 , G06F3/0416
摘要： The invention provides a touch sensor in which the numbers of channels and wires are decreased simultaneously and a simultaneous touch operation of a plurality of touch keys is realized. A keyboard includes 36 pieces of touch keys disposed in 6 rows and 6 columns, drive lines, and sensor lines on an insulation substrate. The touch key includes a center electrode disposed on the insulation substrate and an annular electrode disposed surrounding this center electrode. A sensor circuit includes a selection circuit and an electric charge amplifier. The electric charge amplifier detects the amount of change of a capacitance of an electrostatic capacitor formed between the center electrode and the annular electrode of the touch key connected to one sensor line selected by the selection circuit.
摘要翻译：本发明提供了一种触摸传感器，其中通道和电线的数量同时减小，并且实现了多个触摸键的同时触摸操作。键盘包括设置在绝缘基板上的6行6列，驱动线和传感器线中的36个触摸键。触摸键包括设置在绝缘基板上的中心电极和围绕该中心电极设置的环形电极。传感器电路包括选择电路和电荷放大器。电荷放大器检测形成在连接到由选择电路选择的一个传感器线的触摸键的中心电极和环形电极之间形成的静电电容器的电容的变化量。

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