公开(公告)号：US10092244B2

公开(公告)日：2018-10-09

申请号：US14685782

申请日：2015-04-14

Applicant: PIXART IMAGING INC.

Inventor： Chih-Yuan Chuang ,  Cheng-Nan Tsai ,  Ming-Tsan Kao ,  Ren-Hau Gu ,  Yen-Min Chang

IPC: A61B5/024 ,  A61B5/00 ,  A61B5/1455

Abstract: A biometric detection module including a light source module, a detection region and a control module is provided. The light source module is configured to emit green light, red light and IR light in a time division manner to illuminate a skin surface. The detection region is configured to detect penetration light emitted from the light source module for illuminating the skin surface and passing through body tissues to correspondingly generate a green light signal, a red light signal and an IR light signal. The control module is configured to determine a filtering parameter according to the green light signal to accordingly filter the red light signal and the IR light signal, and calculate a biometric characteristic according to at least one of the green light signal, a filtered red light signal and a filtered IR light signal.

公开(公告)号：US10082883B2

公开(公告)日：2018-09-25

申请号：US15217701

申请日：2016-07-22

Applicant: PIXART IMAGING INC.

Inventor： Yu-Hao Huang ,  Ming-Tsan Kao ,  Sen-Huang Huang

IPC: G06F3/033 ,  G09G5/08 ,  G06F3/03 ,  G06F3/0354 ,  G06F3/038

CPC classification number: G06F3/0317 ,  G06F3/03541 ,  G06F3/03543 ,  G06F3/038

Abstract: There is provided an optical navigation device including an image sensor, a processing unit, a storage unit and an output unit. The image sensor is configured to successively capture images. The processing unit is configured to calculate a current displacement according to the images and to compare the current displacement or an accumulated displacement with a threshold so as to determine an outputted displacement. The storage unit is configured to save the accumulated displacement. The output unit is configured to output the outputted displacement with a report rate.

公开(公告)号：US20180150185A1

公开(公告)日：2018-05-31

申请号：US15879264

申请日：2018-01-24

Applicant: PixArt Imaging Inc.

Inventor： Yu-Hao Huang ,  Ming-Tsan Kao ,  En-Feng Hsu ,  Yi-Yuan Chen ,  Meng-Huan Hsieh

IPC: G06F3/042 ,  G06F3/041 ,  G06F3/03 ,  G06F3/01

CPC classification number: G06F3/0421 ,  G06F3/011 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/0416 ,  G06K9/00375

Abstract: An operation method of an optical touch device includes: emitting, by a light emitting unit, a light beam to illuminate an object; capturing, by an image sensing device, an image of the object reflecting the light beam; selecting all pixels in the image having a brightness greater than or equal to a brightness threshold; sorting the selected pixels along a first coordinate axis of the image, a second coordinate axis of the image or based a pixel brightness; selecting the top first predetermined ratio of pixels from the sorted pixels as an object image of the object; and calculating a gravity center of the object image according to positions of the top first predetermined ratio of pixels or according to the positions of the top first predetermined ratio of pixels with a weight of pixel brightness. An optical touch device is also provided.

公开(公告)号：US09459140B2

公开(公告)日：2016-10-04

申请号：US14195862

申请日：2014-03-04

Applicant: PixArt Imaging Inc.

Inventor： Han-Ping Cheng ,  Chia-Cheun Liang ,  Ming-Tsan Kao

IPC: G01J1/10 ,  H04N1/00 ,  G01J1/44 ,  G01J1/42

CPC classification number: G01J1/10 ,  G01J1/4228 ,  G01J2001/4242 ,  G01J2001/444 ,  H04N1/00

Abstract: A method of an optical detecting device for synchronizing an exposure timing sequence of an image detector with a light emitting timing sequence of a reference light source is disclosed. The method includes capturing a continued image set according to a predetermined period, analyzing intensity variation of the continued image set, and adjusting the exposure timing sequence of an image detector according to the intensity variation, so as to synchronize the exposure timing sequence of the image detector with the light emitting timing sequence of the reference light source.

Abstract translation: 公开了一种用于使图像检测器的曝光定时序列与参考光源的发光定时序列同步的光学检测装置的方法。 该方法包括根据预定时段捕获连续图像集，分析连续图像集合的强度变化，以及根据强度变化调整图像检测器的曝光定时序列，以使图像的曝光定时序列同步 检测器具有参考光源的发光定时序列。

公开(公告)号：US09423893B2

公开(公告)日：2016-08-23

申请号：US14149115

申请日：2014-01-07

Applicant: PIXART IMAGING INC.

Inventor： Shu-Sian Yang ,  Han-Ping Cheng ,  Ming-Tsan Kao

IPC: G09G5/00 ,  G06F3/0354 ,  G06F3/0488

CPC classification number: G06F3/03547 ,  G06F3/04883 ,  G06F2203/04101

Abstract: There is provided a gesture detection device including two linear image sensor arrays and a processing unit. The processing unit is configured to compare sizes of pointer images in the image frames captured by the two linear image sensor arrays in the same period or different periods so as to identify a click event.

Abstract translation: 提供了包括两个线性图像传感器阵列和处理单元的手势检测装置。 处理单元被配置为在相同周期或不同周期中比较由两个线性图像传感器阵列捕获的图像帧中的指针图像的大小，以便识别点击事件。

公开(公告)号：US09229545B2

公开(公告)日：2016-01-05

申请号：US13873700

申请日：2013-04-30

Applicant: PIXART IMAGING INC.

Inventor： Yu-Hao Huang ,  Ming-Tsan Kao ,  Ren-Hau Gu ,  Hsin-Chia Chen ,  Yung-Chang Lin ,  Tsung-Fa Wang

IPC: G06F3/038 ,  G06F3/03

CPC classification number: G06F3/038 ,  G06F3/0317

Abstract: An optical navigation apparatus and an optical navigation method are provided. The optical navigation apparatus includes a light source unit, an image sensing unit, and a processing unit, wherein the processing unit is electrically connected to the light source unit and the image sensing unit. The light source unit generates a beam of light. The image sensing unit captures a plurality of images within a time interval. The processing unit determines that the beam of light is projected onto a touch object according to the images, calculates a piece of displacement information related to the touch object according to the images, generates a comparison result by comparing the piece of displacement information with a threshold, and sets a displacement resolution of the optical navigation apparatus according to the comparison result.

Abstract translation: 提供了一种光学导航装置和光学导航方法。 光学导航装置包括光源单元，图像感测单元和处理单元，其中处理单元电连接到光源单元和图像感测单元。 光源单元产生光束。 图像感测单元在时间间隔内捕获多个图像。 处理单元根据图像确定光束被投影到触摸对象上，根据图像计算与触摸对象相关的位移信息，通过将该位移信息与阈值进行比较来生成比较结果 ，并根据比较结果设定光学导航装置的位移分辨率。

公开(公告)号：US09195900B2

公开(公告)日：2015-11-24

申请号：US14629764

申请日：2015-02-24

Applicant: PIXART IMAGING INC.

Inventor： Ren-Hau Gu ,  Ming-Tsan Kao ,  Sen-Huang Huang

IPC: G06K9/00 ,  G01N33/48 ,  G06K9/46 ,  G06K9/62 ,  H04N7/18

CPC classification number: G06K9/46 ,  G06K9/00013 ,  G06K9/00604 ,  G06K9/00892 ,  G06K9/6201 ,  G06K2009/00932 ,  G06T2207/30076 ,  H04N7/18

Abstract: A system and method based on hybrid biometric detection capture first images of a user that is projected by first light of different wavelengths, extract various biometric informations from the first images, analyze and compare for each of the biometric informations to generate a matching score, determine an identity for the user according to all of the matching scores, generate second images and PPG signals from dispensed second light from the user, generate a time and PPG variation signal and a space and PPG variation signal for each frame of the second images, convert the time and PPG variation signals into frequency domain signals, determine a reference frequency according to the space and PPG variation signals, retrieve energy of the frequency domain signals at the reference frequency, and establish a three-dimensional energy distribution from the retrieved energy.

Abstract translation: 基于混合生物特征检测的系统和方法捕获由不同波长的第一光投射的用户的第一图像，从第一图像中提取各种生物信息，分析和比较每个生物信息以产生匹配分数，确定 根据所有匹配分数的用户的身份，从分配的来自用户的第二光产生第二图像和PPG信号，为第二图像的每个帧生成时间和PPG变化信号以及空间和PPG变化信号，转换 将时间和PPG变化信号转换为频域信号，根据空间和PPG变化信号确定参考频率，检索参考频率下的频域信号的能量，并从检索到的能量建立三维能量分布。

公开(公告)号：US09152272B2

公开(公告)日：2015-10-06

申请号：US13973948

申请日：2013-08-22

Applicant: PixArt Imaging Inc.

Inventor： Hsin-Chia Chen ,  Tse-Chung Su ,  Ming-Tsan Kao

IPC: G06F3/044 ,  G06F3/041 ,  G06F3/042 ,  G06F3/0354

CPC classification number: G06F3/0416 ,  G06F3/03547 ,  G06F3/042 ,  G06F3/044 ,  G06F2203/04104

Abstract: A multipoint positioning method for a touchpad including the steps of: scanning a touchpad to retrieve two-dimensional data; calculating an object area and a number of maxima of local maxima in the two-dimensional data; comparing the object area with an area threshold when the number of maxima is larger than 1; and identifying positions of the local maxima as a plurality of contact positions when the object area is larger than or equal to the area threshold.

Abstract translation: 一种用于触摸板的多点定位方法，包括以下步骤：扫描触摸板以检索二维数据; 计算二维数据中的物体区域和最大值的最大值; 当最大值大于1时，将对象区域与面积阈值进行比较; 以及当所述对象区域大于或等于所述面积阈值时，将所述局部最大值的位置识别为多个接触位置。

公开(公告)号：US09134812B2

公开(公告)日：2015-09-15

申请号：US13846217

申请日：2013-03-18

Applicant: PixArt Imaging Inc.

Inventor： Ming-Tsan Kao ,  Shu-Sian Yang ,  Han-Ping Cheng

IPC: G06F3/03 ,  G06K9/32 ,  G06K9/38

CPC classification number: G06F3/0304 ,  G06F3/0325 ,  G06K9/3241 ,  G06K9/38

Abstract: There is provided an image positioning method including the steps of: capturing an image frame with an image sensor; identifying at least on object image in the image frame; comparing an object image size of the object image with a size threshold and identifying the object image having the object image size larger than the size threshold as a reference point image; and positioning the reference point image. There is further provided an interactive imaging system.

Abstract translation: 提供一种图像定位方法，包括以下步骤：用图像传感器捕获图像帧; 至少识别图像帧中的对象图像; 将对象图像的对象图像尺寸与尺寸阈值进行比较，并将具有大于尺寸阈值的对象图像尺寸的对象图像识别为参考点图像; 并定位参考点图像。 还提供了一种交互式成像系统。

公开(公告)号：US09035913B2

公开(公告)日：2015-05-19

申请号：US13665821

申请日：2012-10-31

Applicant: PixArt Imaging Inc.

Inventor： Ren-Hau Gu ,  Ming-Tsan Kao ,  Sen-Huang Huang

IPC: G06F3/042 ,  G06F1/32

CPC classification number: G06F1/3259 ,  Y02D10/155 ,  Y02D50/20

Abstract: A power-saving sensing module includes a light source, a first and a second sensor, a first and a second detection unit, and a controller. The first sensor detects a touch of an external object to generate a first sensing signal corresponding to the touch. The first detection unit generates a touch signal corresponding to the first sensing signal. The second sensor senses a second sensing signal corresponding to the external object in response to the light ray. When the touch signal is greater than a touch threshold value, the second detection unit outputs a displacement signal corresponding to the second sensing signal. The controller outputs a control signal in response to the touch signal of the first detection unit and the touch threshold value, so that the second detection unit operates at a dormant state or a sensing state in response to the control signal.

Abstract translation: 省电感测模块包括光源，第一和第二传感器，第一和第二检测单元以及控制器。 第一传感器检测外部对象的触摸以产生对应于触摸的第一感测信号。 第一检测单元产生对应于第一感测信号的触摸信号。 第二传感器响应于光线感测对应于外部物体的第二感测信号。 当触摸信号大于触摸阈值时，第二检测单元输出与第二感测信号对应的位移信号。 控制器响应于第一检测单元的触摸信号和触摸阈值输出控制信号，使得第二检测单元响应于控制信号而处于休眠状态或感测状态。