公开(公告)号：US10192097B2

公开(公告)日：2019-01-29

申请号：US15133240

申请日：2016-04-20

Applicant: Novatek Microelectronics Corp.

Inventor： Shun-Li Wang ,  Ching-Ho Hung

IPC: G06K9/00 ,  G06K9/38 ,  G06K9/46

Abstract: The finger print detection method includes: accessing a part of an input image to generate a checked image; setting a gray level range, wherein each of a gray level of the gray level rang is larger than a minimum gray level and smaller than a maximum gray level; obtaining a detected pixel number of the checked image corresponding to all of the gray levels within the gray level range; and, checking whether the detected pixel number is larger than a product value of a preset ratio and a total pixel number of the checked image or not to determine whether the checked image is a finger print or not.

公开(公告)号：US09063596B2

公开(公告)日：2015-06-23

申请号：US13686929

申请日：2012-11-28

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shun-Li Wang ,  Chun-Chieh Chang

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/041 ,  G06F3/044

Abstract: A multi-touch positioning method for a touch control device is disclosed. The touch control device includes a plurality of sensing channels, and each of the plurality of sensing channels is interlaced by a first sensing electrode and a second sensing electrode. The multi-touch positioning method includes retrieving a first touch sensing value and a second touch sensing value respectively corresponding to the first sensing electrode and the second sensing electrode, adding the first touch sensing value and the second touch sensing value to generate a sensing sum value, determining a touch sensing channel having a local maximum value according to the plurality of sensing sum values of the plurality of sensing channels, so as to define a touch point on the touch sensing channel, and calculating a coordinate of the touch point according to the touch sensing channel and its neighboring sensing channels.

Abstract translation: 公开了一种用于触摸控制装置的多点触摸定位方法。 触摸控制装置包括多个感测通道，并且多个感测通道中的每一个由第一感测电极和第二感测电极隔行扫描。 多点触摸定位方法包括检索分别对应于第一感测电极和第二感测电极的第一触摸感测值和第二触摸感测值，添加第一触摸感测值和第二触摸感测值以产生感测和值 根据所述多个感测通道的所述多个感测和值确定具有局部最大值的触摸感测通道，以便在所述触摸感测通道上限定触摸点，以及根据所述触摸感测通道的坐标来计算所述触摸点的坐标 触摸感应通道及其相邻感应通道。

公开(公告)号：US20170337410A1

公开(公告)日：2017-11-23

申请号：US15159821

申请日：2016-05-20

Applicant: Novatek Microelectronics Corp.

Inventor： Shun-Li Wang ,  Hsin-Kuo Chen

IPC: G06K9/00

CPC classification number: G06K9/0002 ,  G06K9/00892

Abstract: A fingerprint sensing apparatus including an integrated sensor device and a fingerprint sensing circuit is provided. The integrated sensor device includes at least two sensors. The integrated sensor device is configured to sense a fingerprint to obtain two different types of information related to the fingerprint. The fingerprint sensing circuit electrically connected to the integrated sensor device. The fingerprint sensing circuit is configured to drive the integrated sensor device to sense the fingerprint. One of the two different types of information is determined according to the other of the two different types of information. In addition, an integrated sensor device and a fingerprint sensing method are also provided.

公开(公告)号：US20140247244A1

公开(公告)日：2014-09-04

申请号：US13967323

申请日：2013-08-14

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shun-Li Wang ,  Chih-Chang Lai ,  He-Wei Huang

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412

Abstract: A capacitive touch screen includes a plurality of touch sensing electrodes and a touch controller. Each of the plurality of touch sensing electrodes includes at least one driving area and at least one receiving area. The at least one driving area and the at least one receiving area are located in a same layer of the capacitive touch screen. The touch controller, electrically connected to the at least one driving area and the at least one receiving area in the plurality of touch sensing electrodes, is utilized for scanning the at least one driving area in order and detecting signals received by the at least one receiving area, or scanning the at least one receiving area in order and detecting signals received by the at least one driving area.

Abstract translation: 电容式触摸屏包括多个触摸感测电极和触摸控制器。 多个触摸感测电极中的每一个包括至少一个驱动区域和至少一个接收区域。 所述至少一个驱动区域和所述至少一个接收区域位于所述电容式触摸屏的相同层中。 电连接到多个触摸感测电极中的至少一个驱动区域和至少一个接收区域的触摸控制器用于依次扫描至少一个驱动区域并检测由至少一个接收器接收到的信号 区域，或者依次扫描至少一个接收区域并检测由至少一个驾驶区域接收的信号。

公开(公告)号：US20140009436A1

公开(公告)日：2014-01-09

申请号：US13736926

申请日：2013-01-08

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chih-Chang Lai ,  Shun-Li Wang

IPC: G06F3/044

CPC classification number: G06F3/044

Abstract: A sense device for a capacitive touch control display is disclosed. The sense device includes a plurality of sense channels paralleled to each other, each of the sense channel including a first sense electrode having a first geometric figure for outputting a first sense signal, a second sense electrode having a second geometric figure for outputting a second sense signal, and a third sense electrode formed between the first sense electrode and the second sense electrode for outputting a third sense signal. An operation unit of the capacitive touch control display determines a plurality of touch positions according to the first sense signal, the second sense signal and the third sense signal.

Abstract translation: 公开了用于电容式触摸控制显示器的感测装置。 感测装置包括彼此平行的多个感测通道，每个感测通道包括具有用于输出第一感测信号的第一几何图形的第一感测电极，具有用于输出第二感测的第二几何图形的第二感测电极 信号，以及形成在第一感测电极和第二感测电极之间的用于输出第三感测信号的第三感测电极。 电容式触摸控制显示器的操作单元根据第一感测信号，第二感测信号和第三感测信号确定多个触摸位置。

公开(公告)号：US20170308735A1

公开(公告)日：2017-10-26

申请号：US15133240

申请日：2016-04-20

Applicant: Novatek Microelectronics Corp.

Inventor： Shun-Li Wang ,  Ching-Ho Hung

IPC: G06K9/00 ,  G06K9/46 ,  G06K9/38

CPC classification number: G06K9/00067 ,  G06K9/38 ,  G06K9/4642 ,  G06K9/4647

Abstract: The finger print detection method includes: accessing a part of an input image to generate a checked image; setting a gray level range, wherein each of a gray level of the gray level rang is larger than a minimum gray level and smaller than a maximum gray level; obtaining a detected pixel number of the checked image corresponding to all of the gray levels within the gray level range; and, checking whether the detected pixel number is larger than a product value of a preset ratio and a total pixel number of the checked image or not to determine whether the checked image is a finger print or not.

公开(公告)号：US09024903B2

公开(公告)日：2015-05-05

申请号：US13938687

申请日：2013-07-10

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Hung Chen ,  Yi-Rong Ko ,  Shun-Li Wang

IPC: G09G5/00 ,  G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0418

Abstract: A detection method for a capacitive touch device is provided. The detection method includes steps of: driving an Mth driving line among an m driving lines of the capacitive touch device, wherein M is a natural number smaller than or equal to m and greater than 1; selecting a plurality of sensing lines among n sensing lines; obtaining a plurality of sensing values by detecting voltage changes at the selected sensing lines; determining whether to perform a noise reduction operation on the sensing values; if yes, calculating respective differences between the sensing values and a baseline value, and generating a noise correction value corresponding to the sensing values by performing a statistical computation on the differences; and correcting the differences according to the noise correction value.

Abstract translation: 提供了一种用于电容式触摸装置的检测方法。 检测方法包括以下步骤：驱动电容式触摸装置的m个驱动线中的第M个驱动线，其中M是小于或等于m且大于1的自然数; 在n个感测线中选择多个感测线; 通过检测所选择的感测线路上的电压变化来获得多个感测值; 确定是否对所述感测值执行降噪操作; 如果是，则计算感测值和基线值之间的差异，并通过对差异进行统计计算来产生与感测值对应的噪声校正值; 以及根据噪声校正值校正差异。

公开(公告)号：US20150091827A1

公开(公告)日：2015-04-02

申请号：US14487106

申请日：2014-09-16

Applicant: Novatek Microelectronics Corp.

Inventor： Shun-Li Wang

IPC: G06F3/041

CPC classification number: G06F3/044

Abstract: A touch panel includes a substrate and an electrode layer. The substrate includes a first substrate region. The electrode layer includes a plurality of first repetitive units sequentially arranged in a first direction on the first substrate region of the substrate. Each of the first repetitive units corresponds to integral pairs of channels of plural pairs of channels and includes a first electrode and a second electrode. The first electrode and the second electrode are electrically independent from each other. The first electrode includes a plurality of first branch regions, and the second electrode includes at least one second branch region. The first branch regions and the at least one second branch region are alternately arranged on the first substrate region of the substrate. Two edges of each of the first repetitive units in the first direction respectively belong to the first branch regions.

Abstract translation: 触摸面板包括基板和电极层。 衬底包括第一衬底区域。 电极层包括在基板的第一基板区域上沿第一方向顺序布置的多个第一重复单元。 每个第一重复单元对应于多对通道的整体通道对，并且包括第一电极和第二电极。 第一电极和第二电极彼此电独立。 第一电极包括多个第一分支区域，第二电极包括至少一个第二分支区域。 第一分支区域和至少一个第二分支区域交替地布置在基板的第一基板区域上。 第一方向上的每个第一重复单元的两个边缘分别属于第一分支区域。

公开(公告)号：US20150042597A1

公开(公告)日：2015-02-12

申请号：US14044882

申请日：2013-10-03

Applicant: Novatek Microelectronics Corp.

Inventor： Shun-Li Wang

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0418

Abstract: A touch display device and a method for sensing capacitance thereof are provided. The touch display device includes a display panel having a plurality of liquid crystal pixels, a source driver, a touch panel having a plurality of touch areas, a touch sensing circuit and a crosstalk compensation unit. The source driver writes a plurality of pixel voltages into the liquid crystal pixels according to a plurality of display data. The touch panel is disposed and overlapped with the display panel. The touch sensing circuit senses a capacitance variation amount corresponding to each of the touch areas. The crosstalk compensation unit is coupled to the touch sensing circuit to receive the capacitance variation amount corresponding to each of the touch areas and corrects the capacitance variation amounts according to a plurality of capacitance crosstalk values corresponding to the liquid crystal pixels so as to provide a plurality sensing signals.

Abstract translation: 提供一种触摸显示装置及其感测电容的方法。 触摸显示装置包括具有多个液晶像素的显示面板，源极驱动器，具有多个触摸区域的触摸面板，触摸感测电路和串扰补偿单元。 源驱动器根据多个显示数据将多个像素电压写入液晶像素。 触摸面板与显示面板配置和重叠。 触摸感测电路感测对应于每个触摸区域的电容变化量。 串扰补偿单元耦合到触摸感测电路以接收与每个触摸区域相对应的电容变化量，并且根据与液晶像素对应的多个电容串扰值来校正电容变化量，从而提供多个 感应信号。

公开(公告)号：US20140218333A1

公开(公告)日：2014-08-07

申请号：US13968450

申请日：2013-08-16

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shun-Li Wang

IPC: G06F3/044

CPC classification number: G06F3/044

Abstract: A coordinate calculating method includes acquiring a plurality of first end capacitances and a plurality of second end capacitances corresponding to a plurality of sensing channels of a single-layer capacitive touch device. Differences between the plurality of first end capacitances and a plurality of first baselines are calculated for acquiring a plurality of first differences and calculating differences between the plurality of second end capacitances and a plurality of second baselines for acquiring a plurality of second differences The first difference and the second difference of each sensing channel are added for acquiring a plurality of total capacitances. Whether the single-layer capacitive touch device is pressed is determined according to the plurality of total capacitances and a threshold. A coordinate of at least one touch point is outputted when determining the single-layer capacitive touch device is pressed.

Abstract translation: 坐标计算方法包括获取对应于单层电容式触摸装置的多个感测通道的多个第一端电容和多个第二端电容。 计算多个第一端电容和多个第一基线之间的差异，用于获取多个第一差异并计算多个第二端电容与用于获取多个第二差的多个第二基线之间的差。第一差和 添加每个感测通道的第二差以获取多个总电容。 根据多个总电容和阈值确定单层电容式触摸装置是否被按下。 当确定单层电容式触摸装置被按下时，输出至少一个触摸点的坐标。