公开(公告)号：US09626044B2

公开(公告)日：2017-04-18

申请号：US12822828

申请日：2010-06-24

Applicant: Chin-Fu Chang

Inventor： Chin-Fu Chang

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: This invention provides a system for scanning control of a capacitive touch panel. The system includes a driving unit driving a partially neighboring strips of a plurality of first axial conductive strips of the capacitive touch panel, wherein the plurality of first axial conductive strips are parallel to each other, and a first detecting unit detecting one of the partially neighboring strips of first axial conductive strips. By doing so, the influence caused by unintended conducting materials can be kept from the touch point detection for the capacitive touch panel, and the electro-magnetic interference of the capacitive touch panel can be also decreased.

公开(公告)号：US09081440B2

公开(公告)日：2015-07-14

申请号：US13211771

申请日：2011-08-17

Applicant: Chin-Fu Chang

Inventor： Chin-Fu Chang

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F3/0418 ,  G06F2203/04103 ,  G06F2203/04104 ,  G06F2203/04107 ,  G06F2203/04111

Abstract: The present invention provides a method and device for writing on a capacitive touch screen, which includes a guarding pattern and a conductive strip pattern exposed from each other, and a stylus. The conductive strip pattern includes a plurality of first conductive strips provided with a driving signal and a plurality of second conductive strips that provide mutual capacitive coupling signals, and the guarding pattern is provided with a DC signal. The stylus has a conductive pen head and a pen body. When the human body holding the pen body is not electrically coupled to the conductive pen head, the location of the conductive pen head can be determined by sufficient change in capacitive coupling caused by the conductive pen head capacitively coupling to the guarding pattern and the conductive strip pattern.

Abstract translation: 本发明提供了一种用于在电容式触摸屏上进行写入的方法和装置，其包括彼此暴露的防护图案和导电条形图案以及触控笔。 导电条图案包括设置有驱动信号的多个第一导电条和提供相互电容耦合信号的多个第二导电条，并且保护图案具有DC信号。 触控笔具有导电笔头和笔体。 当保持笔体的人体不与导电笔头电耦合时，导电笔头的位置可以通过电容耦合引起的电容耦合的充分变化来确定，导电笔头电容耦合到防护图案和导电条 模式。

公开(公告)号：US08976122B2

公开(公告)日：2015-03-10

申请号：US12457867

申请日：2009-06-24

Applicant: Chin-Fu Chang ,  Cheng-Han Lee

Inventor： Chin-Fu Chang ,  Cheng-Han Lee

IPC: G06F3/041 ,  G06F3/045 ,  G06F3/044

CPC classification number: G06F3/044 ,  G01B7/004 ,  G01B2210/58

Abstract: A noise reducing device for a capacitive touch panel and a method of reducing noise for a capacitive touch panel are disclosed to solve problems related to noise generated by a conventional filter circuit and an integrating circuit or external noise. In the invention, at least one switch circuit is used so that the conventional filter circuit and integrating circuit used in the prior are omitted. Signals output from a current measurement circuit are transmitting to a control unit to calculate the location of a touch point, reducing any noise.

Abstract translation: 公开了用于电容式触摸面板的降噪装置和降低电容​​式触摸面板的噪声的方法，以解决与常规滤波器电路和积分电路或外部噪声产生的噪声有关的问题。 在本发明中，使用至少一个开关电路，省略了现有技术中使用的常规滤波电路和积分电路。 从当前测量电路输出的信号正在发送到控制单元以计算触摸点的位置，从而减少任何噪声。

公开(公告)号：US08890821B2

公开(公告)日：2014-11-18

申请号：US13307938

申请日：2011-11-30

Applicant: Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

Inventor： Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

IPC: G06F3/041 ,  G06F3/044 ,  G01R27/26 ,  G06F3/047

CPC classification number: G06F3/041 ,  G01R27/2605 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04102 ,  G06F2203/04103 ,  G06F2203/04104 ,  G06F2203/04111

Abstract: A method and device for dual-differential sensing is disclosed. The sensing information can be generated from signals provided by a sensing device with a plurality of sensors. Each value of the sensing information corresponds to signals of three sensors, respectively. The sensing device is flexible and configured on a display. The noise effect of the display on the signal of each sensor corresponds to the distance between the display and the sensor. Besides, the noise effect of the display on each value of the sensing information corresponds to the distances between the display and the three sensors, respectively.

公开(公告)号：US08614685B2

公开(公告)日：2013-12-24

申请号：US13211873

申请日：2011-08-17

Applicant: Chin-Fu Chang

Inventor： Chin-Fu Chang

IPC: G06F3/041 ,  G06F3/045

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F3/0418 ,  G06F2203/04103 ,  G06F2203/04104 ,  G06F2203/04107 ,  G06F2203/04111

Abstract: The present invention provides a mutual capacitive multi-touch screen, which includes a guarding pattern and a conductive strip pattern exposed from each other. The conductive strip pattern includes a plurality of first conductive strips provided with a driving signal and a plurality of second conductive strips for providing mutual capacitive coupling signals, and the guarding pattern is provided with a DC signal.

Abstract translation: 本发明提供了一种互电容式多点触摸屏，其包括彼此暴露的保护图案和导电条图形。 导电条图形包括多个带有驱动信号的第一导电条和用于提供相互电容耦合信号的多个第二导电条，并且保护图案具有DC信号。

公开(公告)号：US08587555B2

公开(公告)日：2013-11-19

申请号：US12923803

申请日：2010-10-08

Applicant: Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

Inventor： Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

IPC: G06F3/045

CPC classification number: G01R27/2605 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04106

Abstract: The method and device for capacitive position detection are disclosed. The touch related sensors within a sensing device with a plurality of sensors are detected first. Therefore at least a range of the mutual capacitance detection for detecting sensing information can be determined according to the touch related sensors. The sensing information within the range of the mutual capacitance detection can be used for generating a two-dimension sensing information.

Abstract translation: 公开了用于电容位置检测的方法和装置。 首先检测具有多个传感器的感测装置内的触摸相关传感器。 因此，可以根据触摸相关的传感器来确定用于检测感测信息的互电容检测的至少一个范围。 在互电容检测范围内的感测信息可用于产生二维感测信息。

公开(公告)号：US08570289B2

公开(公告)日：2013-10-29

申请号：US12923808

申请日：2010-10-08

Applicant: Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

Inventor： Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

IPC: G06F3/041

CPC classification number: G01R27/2605 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103 ,  G06F2203/04104 ,  G06F2203/04106 ,  G06F2203/04111

Abstract: A method and device for position detection are disclosed. A self-capacitance detection can be performed by a sensing device. According to the result of the self-capacitance detection, a first mutual-capacitance detection can be performed for determining one or more first 1-D positions. According to the result of the first mutual-capacitance detection, a second mutual-capacitance detection can be performed for determining one or more second 1-D positions corresponding to each first 1-D position. One or more 2-D positions can be provided according to the one or more second 1-D positions corresponding to each first 1-D position. Besides, during the self-capacitance detection, the first mutual-capacitance detection, and the second mutual-capacitance detection, a touch related sensing information corresponding to a touch that covers a wide area can be neglected for palm rejection.

公开(公告)号：US08553011B2

公开(公告)日：2013-10-08

申请号：US12499981

申请日：2009-07-09

Applicant: Chin-Fu Chang

Inventor： Chin-Fu Chang

IPC: G06F3/045

CPC classification number: G06F3/044 ,  G06F3/04883 ,  G06F2203/04104 ,  G06F2203/04808

Abstract: The disclosed capacitive sensing device has first conductive lines, second conductive lines and electrical conductors. The first conductive lines are electrically isolated from each other, the second conductive lines are electrically isolated from each other and electrically isolated from and stacked with the first conductive lines to form numerous intersecting points, and the electrical conductors are electrically isolated from each other and correspondingly crossing the first and the second conductive lines and being around the intersecting points. Herein, the electrical conductors are electrically isolated from the first and second conductive lines. When an electrical signal is driven to a first conductive line, the first conductive line is capacitive coupled to the second conductive lines which intersecting mutually, and the electrical conductors crossing the first conductive line are respectively capacitive coupled to the first conductive line and the mutually intersecting second conductive lines to provide a higher compound capacitance.

Abstract translation: 所公开的电容感测装置具有第一导线，第二导线和电导体。 第一导电线彼此电隔离，第二导线彼此电隔离并与第一导线电隔离并与第一导线堆叠以形成许多交叉点，并且电导体彼此电隔离并相应地 穿过第一和第二导线并且在相交点周围。 这里，电导体与第一和第二导线电隔离。 当电信号被驱动到第一导电线路时，第一导线线路电容耦合到相互交叉的第二导线，并且与第一导线交叉的电导体分别电容耦合到第一导线和相互交叉的 第二导线以提供更高的复合电容。

公开(公告)号：US20130135013A1

公开(公告)日：2013-05-30

申请号：US13609377

申请日：2012-09-11

Applicant: Chin-Fu Chang ,  Guang-Huei Lin

Inventor： Chin-Fu Chang ,  Guang-Huei Lin

IPC: G11C27/02

CPC classification number: G11C27/024 ,  G11C27/02 ,  G11C27/026

Abstract: The present invention discloses a multi-stage sample and hold (S/H) circuit that includes: a first S/H circuit for sampling a sensing signal of a sensor multiple times and accumulating them into a first sampled signal, and outputting the first sampled signal; and a second S/H circuit for receiving the plurality of first sampled signals and accumulating them into a second sampled signal. As a result, when one or more first sampled signals are saturated due to instantaneous noise, the second sampled signal is not saturated, thereby increasing the noise tolerance of the multi-stage S/H circuit.

Abstract translation: 本发明公开了一种多级采样和保持（S / H）电路，包括：第一S / H电路，用于对传感器的感测信号进行多次采样并将其累积为第一采样信号，并输出第一采样 信号; 以及第二S / H电路，用于接收多个第一采样信号并将其累积为第二采样信号。 结果，当一个或多个第一采样信号由于瞬时噪声而饱和时，第二采样信号不饱和，从而增加了多级S / H电路的噪声容限。

公开(公告)号：US20120075228A1

公开(公告)日：2012-03-29

申请号：US13313679

申请日：2011-12-07

Applicant: Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

Inventor： Chin-Fu Chang ,  Cheng-Han Lee ,  Chi-Hao Tang ,  Shun-Lung Ho

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G01R27/2605 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/047 ,  G06F2203/04103 ,  G06F2203/04104 ,  G06F2203/04111

Abstract: The method and device for analyzing two-dimension sensing information are disclosed. The two-dimension (2D) sensing information is analyzed for determining touch related sensing information. The touch related sensing information may include touch related sensing information with inner low values within outer high values and with inner higher values within outer low values.