公开(公告)号：US20160328027A1

公开(公告)日：2016-11-10

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: G06F3/03

CPC classification number: G06F3/0317 ,  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：US20140112554A1

公开(公告)日：2014-04-24

申请号：US14047682

申请日：2013-10-07

Applicant: PixArt Imaging Inc

Inventor： Liang-Chi CHIU ,  Yu-Han CHEN ,  Ming-Tsan KAO

IPC: G06K9/00

CPC classification number: G06K9/00302 ,  B60R25/25 ,  G06K9/00832 ,  G06K2209/27

Abstract: A user recognition and confirmation device includes an image sensing unit, a face recognition unit, a display unit and an expression recognition unit. The image sensing unit captures a first image frame and a second image frame. The face recognition unit is configured to recognize a user ID according to the first image frame. The display unit is configured to show ID information of the user ID. The expression recognition unit is configured to confirm a user expression according to the second image frame and output a confirm signal. There is further provided a user recognition and confirmation method and a central control system for vehicles.

Abstract translation: 用户识别和确认装置包括图像感测单元，人脸识别单元，显示单元和表情识别单元。 图像感测单元捕获第一图像帧和第二图像帧。 面部识别单元被配置为根据第一图像帧识别用户ID。 显示单元被配置为显示用户ID的ID信息。 表情识别单元被配置为根据第二图像帧确认用户表达并输出确认信号。 还提供了用户识别和确认方法以及用于车辆的中央控制系统。

公开(公告)号：US20140092016A1

公开(公告)日：2014-04-03

申请号：US13865188

申请日：2013-04-17

Applicant: PIXART IMAGING INC.

Inventor： Ming-Tsan KAO ,  Chia-Cheun LIANG

IPC: G06F3/038

CPC classification number: G06F3/038 ,  G06F3/0304 ,  G06F3/0346 ,  G06F3/03545 ,  G06F3/0383

Abstract: A handheld pointing device includes a body, an image sensing module and a processing circuit. The image sensing module is disposed in the body and configured to sense a reference light source and thereby capturing an image including of the reference light source. The processing circuit, disposed in the body and electrically connected to the image sensing module, is configured to obtain the image including of the reference light source, calculate a coordinate of the image of the reference light source relative to the image captured by the image sensing module, and correct the coordinate according to a distance or a distance change between the body and the reference light source. An operation method of a handheld pointing device is also provided.

Abstract translation: 手持式定位装置包括主体，图像感测模块和处理电路。 图像感测模块设置在主体中并且被配置为感测参考光源，从而捕获包括参考光源的图像。 配置在本体中并电连接到图像感测模块的处理电路被配置为获得包括参考光源的图像，计算参考光源的图像相对于由图像感测捕获的图像的坐标 模块，并根据身体和参考光源之间的距离或距离变化来校正坐标。 还提供了一种手持式定位装置的操作方法。

公开(公告)号：US20140055416A1

公开(公告)日：2014-02-27

申请号：US13773575

申请日：2013-02-21

Applicant: PIXART IMAGING INC.

Inventor： Ming-Tsan KAO ,  Tzung-Min SU ,  Chih-Hsin LIN

IPC: G06F3/042

CPC classification number: G06F3/042 ,  G06F3/0416 ,  G06F3/0421 ,  G06F2203/04101

Abstract: An operation method of an optical touch system is provided. The optical touch system includes a touch surface, a light sensing unit, a switch unit and an analog-to-digital conversion unit. The light sensing unit includes a plurality of light sensing elements. The operation method includes: turning on one specific light sensing element group and thereby configuring the light sensing elements thereof to sense the light on the touch surface; and controlling the switch unit to electrically connect the light sensing elements of the turned-on light sensing element group to the input terminals of the analog-to-digital conversion unit, respectively, so as to transmit the sensing signals outputted from the turned-on light sensing element group to the input terminals, and thereby configuring the analog-to-digital conversion unit to generate at least one digital output signal according to the sensing signals supplied to the input terminals thereof. An optical touch system is also provided.

Abstract translation: 提供了一种光学触摸系统的操作方法。 光学触摸系统包括触摸表面，光感测单元，开关单元和模数转换单元。 光感测单元包括多个光感测元件。 该操作方法包括：打开一个特定的感光元件组，从而配置其感光元件以感测触摸表面上的光; 并且控制开关单元将导通的光感测元件组的光感测元件分别电连接到模数转换单元的输入端，以便传输从开启 光感测元件组合到输入端子，从而配置模数转换单元，以根据提供给其输入端的感测信号产生至少一个数字输出信号。 还提供了光学触摸系统。

公开(公告)号：US20140048681A1

公开(公告)日：2014-02-20

申请号：US13947961

申请日：2013-07-22

Applicant: PixArt Imaging Inc

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

IPC: G01C21/00

CPC classification number: G01C21/00 ,  G06F3/0418 ,  G06F3/042

Abstract: An optical tracking device includes a light source, an image sensor and a processing unit. The light source emits light at a lighting frequency. The image sensor outputs an operating image when the light source is being turned on and outputs a background image when the light source is being turned off. The processing unit is configured to obtain background information from the background image, calculate a differential image of the operating image and the background image, obtain object information from the differential image and compare the background information and the object information thereby removing background noise.

Abstract translation: 光学跟踪装置包括光源，图像传感器和处理单元。 光源以发光频率发光。 当光源被接通时，图像传感器输出操作图像，并且当光源被关闭时输出背景图像。 处理单元被配置为从背景图像获得背景信息，计算操作图像和背景图像的差分图像，从差分图像获取对象信息，并比较背景信息和对象信息，从而去除背景噪声。

公开(公告)号：US20130329962A1

公开(公告)日：2013-12-12

申请号：US13858131

申请日：2013-04-08

Applicant: PIXART IMAGING INC.

Inventor： Ming-Tsan KAO ,  Ren-Hau GU ,  Yu-Hao HUANG

IPC: G06T7/00

CPC classification number: G06T7/004 ,  G06F3/0304 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/0383 ,  G06T7/246 ,  G06T2207/10016

Abstract: A displacement detection device includes a light source, an image sensor and a processing unit. The light source is configured to illuminate a work surface. The image sensor is configured to capture reflected light from the work surface and to output an image frame. The processing unit is configured to select a window of interest in the image frame having a maximum image feature and to calculate a displacement of the displacement detection device according to the window of interest.

Abstract translation: 位移检测装置包括光源，图像传感器和处理单元。 光源被配置为照亮工作表面。 图像传感器被配置为捕获来自工作表面的反射光并输出图像帧。 处理单元被配置为在具有最大图像特征的图像帧中选择感兴趣的窗口，并且根据感兴趣的窗口来计算位移检测装置的位移。

公开(公告)号：US20130229514A1

公开(公告)日：2013-09-05

申请号：US13758304

申请日：2013-02-04

Applicant: PIXART IMAGING INC.

Inventor： Yu-Hao HUANG ,  Hsin-Chia CHEN ,  Ming-Tsan KAO ,  Sen-Huang HUANG

IPC: G01C11/02

CPC classification number: G01C11/02 ,  G06F1/3259 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/03547 ,  G06F3/0383 ,  G06F2203/0338 ,  Y02D10/155

Abstract: There is provided a displacement detection device including an image sensor, a light source, a light control unit and a processing unit. The image sensor captures image frames at a sampling frequency. The light source provides, in a speed mode, light for the image sensor in capturing the image frames. The light control unit controls the light source with the speed mode to turn on at a lighting frequency or to turn off serially. The processing unit calculates a displacement according to the image frames captured when the light source turns on to be served as an estimated displacement for an interval during which the light source turns off. There is further provided an operating method of a displacement detection device.

Abstract translation: 提供了包括图像传感器，光源，光控制单元和处理单元的位移检测装置。 图像传感器以采样频率捕获图像帧。 光源在速度模式下提供用于图像传感器捕获图像帧的光。 光控制单元以速度模式控制光源，以点亮频率开启或连续关闭。 处理单元根据在光源打开时拍摄的图像帧来计算作为光源关闭的间隔的估计位移的位移。 还提供了一种位移检测装置的操作方法。

公开(公告)号：US20130229349A1

公开(公告)日：2013-09-05

申请号：US13777407

申请日：2013-02-26

Applicant: PIXART IMAGING INC.

Inventor： Hsin-Chia CHEN ,  Feng-Cheng YANG ,  Ching-Lin CHUNG ,  Wei-Yen KU ,  Ming-Tsan KAO

IPC: G06F3/042

CPC classification number: G06F3/0425 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/03547 ,  G06F3/0383 ,  G06F3/04883

Abstract: Optical imaging is used for touch input to implement device and method for gesture detection for better durableness, high resolution, simplifier structure, higher reliability, less power consumption, and faster response. A touch surface is provided for gesture operation thereon, and under light projecting to the touch surface, images are captured by receiving light from the touch surface. The varying images are monitored to detect if any gesture operates on the touch surface, and if a predefined gesture is detected, a gesture signal is generated.

Abstract translation: 光学成像用于触摸输入以实现用于手势检测的装置和方法，以实现更好的持久性，高分辨率，简化结构，更高的可靠性，更少的功耗和更快的响应。 提供用于在其上进行手势操作的触摸表面，并且在投射到触摸表面的光下，通过接收来自触摸表面的光来捕获图像。 监视变化的图像以检测是否有任何手势在触摸表面上操作，并且如果检测到预定义的手势，则生成手势信号。

公开(公告)号：US20130194236A1

公开(公告)日：2013-08-01

申请号：US13671230

申请日：2012-11-07

Applicant: PIXART IMAGING INC.

Inventor： Ren-Hau GU ,  Ming-Tsan KAO ,  Sen-Huang HUANG

IPC: G06F3/042 ,  A61B1/00

CPC classification number: G06F3/0425 ,  A61B1/00172 ,  G06F2203/0338 ,  G06K9/00046 ,  G06K9/00107

Abstract: An optical input device integrates functions of fingerprint recognition, movement detection, and physiological analysis, and has a touch surface for receiving touch input of a finger. When a finger contacts the touch surface, the optical input device captures images from the touch surface, detects movement of the finger to generate a movement signal, extracts a fingerprint feature and a vessel blood changing feature from the images, analyzes and compares the fingerprint feature for identity recognition, and performs calculation according to the vessel blood changing feature to generate a physiological signal.

Abstract translation: 光输入装置集成指纹识别，移动检测和生理分析的功能，并具有用于接收手指的触摸输入的触摸表面。 当手指接触触摸表面时，光学输入装置从触摸表面捕获图像，检测手指的移动以产生运动信号，从图像中提取指纹特征和血管血液变化特征，分析并比较指纹特征 用于身份识别，并且根据血管血液变化特征进行计算以产生生理信号。

公开(公告)号：US20130162601A1

公开(公告)日：2013-06-27

申请号：US13657969

申请日：2012-10-23

Applicant: PixArt Imaging Inc.

Inventor： Tzung-Min SU ,  Chih-Hsin LIN ,  Yi-Hsien KO ,  Ming-Tsan KAO

IPC: G06F3/042

CPC classification number: G06F3/0421

Abstract: There is provided an optical touch system including at least one lighting unit, at least one image sensing module and a processing unit. The image sensing module is configured to capture light of a pointer and the lighting unit to generate a two-dimensional image and to convert entire of the two-dimensional image to a one-dimensional feature. The processing unit positions the pointer according to the one-dimensional feature.

Abstract translation: 提供了一种光学触摸系统，其包括至少一个照明单元，至少一个图像感测模块和处理单元。 图像感测模块被配置为捕获指针和照明单元的光以生成二维图像并将整个二维图像转换为一维特征。 处理单元根据一维特征定位指针。