公开(公告)号：US20130127714A1

公开(公告)日：2013-05-23

申请号：US13632327

申请日：2012-10-01

Applicant: PIXART IMAGING INC.

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

IPC: G06F3/042 ,  G06F3/033

CPC classification number: A61B5/6898 ,  A61B5/1128 ,  A61B5/14552 ,  A61B5/721 ,  G06F3/0317 ,  G06F2203/0338

Abstract: There is provided a user interface system including a slave device and a master device. The slave device provides light of two different wavelengths to illuminate a finger surface, receives reflected light from the finger surface to generate a plurality of image frames, calculates and outputs an image data associated with a predetermined number of the image frames. The master device calculates a contact status and a displacement of the finger surface and a physiological characteristic of a user according to the image data.

Abstract translation: 提供了包括从设备和主设备的用户界面系统。 从设备提供两种不同波长的光以照亮手指表面，接收来自手指表面的反射光以产生多个图像帧，计算并输出与预定数量的图像帧相关联的图像数据。 主装置根据图像数据计算手指表面的接触状态和位移以及用户的生理特征。

公开(公告)号：US20140160024A1

公开(公告)日：2014-06-12

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: G06F3/0354

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：US20140111632A1

公开(公告)日：2014-04-24

申请号：US14054724

申请日：2013-10-15

Applicant: PixArt Imaging Inc.

Inventor： Yu-Hao HUANG ,  Ming-Tsan KAO ,  Yi-Fang LEE ,  En-Feng HSU ,  Meng-Huan HSIEH ,  Nien-Tse CHEN

IPC: G06K9/00

CPC classification number: G06K9/00604 ,  G06F3/013 ,  H04N5/2354

Abstract: There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value. The image sensor captures a first brightness image corresponding to the first brightness value and a second brightness image corresponding to the second brightness value. The processing unit identifies a brightest region at corresponding positions of the first brightness image and the second brightness image as an active light image.

Abstract translation: 提供了一种包括主动光源，图像传感器和处理单元的光瞳跟踪装置。 主动光源以第一亮度值和第二亮度值交替地向眼球发光。 图像传感器捕获对应于第一亮度值的第一亮度图像和对应于第二亮度值的第二亮度图像。 处理单元将第一亮度图像和第二亮度图像的相应位置处的最亮区域识别为活动光图像。

公开(公告)号：US20140043297A1

公开(公告)日：2014-02-13

申请号：US13856432

申请日：2013-04-03

Applicant: PIXART IMAGING INC.

Inventor： Tzung-Min SU ,  Chi-Chieh LIAO ,  Han-Ping CHENG ,  Chih-Hsin LIN ,  Ming-Tsan KAO

IPC: G06F3/042

CPC classification number: G06F3/042 ,  G06F3/0418 ,  G06F3/0428 ,  G06F2203/04104

Abstract: An optical touch control method includes steps of: providing a bright background from at least one edge of a touch surface in a first period; providing illumination light to the touch surface in a second period; capturing a first image of an indicator object blocking a portion of the bright background in the first period; and capturing a second image of the indicator object reflecting the illumination light in the second period. An optical touch system is also provided.

Abstract translation: 光学触摸控制方法包括以下步骤：在第一周期中从触摸表面的至少一个边缘提供明亮的背景; 在第二周期中向所述触摸表面提供照明光; 捕获在所述第一周期中阻挡所述明亮背景的一部分的指示对象的第一图像; 以及在所述第二周期中捕获反映所述照明光的所述指示对象的第二图像。 还提供了光学触摸系统。

公开(公告)号：US20140028868A1

公开(公告)日：2014-01-30

申请号：US13916631

申请日：2013-06-13

Applicant: PixArt Imaging Inc

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

IPC: G01B11/14

CPC classification number: G01B11/14 ,  G01B11/02 ,  G06F3/0317

Abstract: A displacement detection device includes an image sensor, a light source and a processing unit. The image sensor is configured to successively capture images. The light source provides light with an emission frequency and an emission duration for the image sensor in capturing the images. The processing unit is configured to calculate a displacement according to the images and to adjust both the emission frequency and the emission duration according to the displacement.

Abstract translation: 位移检测装置包括图像传感器，光源和处理单元。 图像传感器被配置为连续地捕获图像。 光源为图像传感器在拍摄图像时提供发光频率和发射持续时间。 处理单元被配置为根据图像计算位移，并且根据位移来调整发射频率和发射持续时间。

公开(公告)号：US20130275007A1

公开(公告)日：2013-10-17

申请号：US13837518

申请日：2013-03-15

Applicant: PIXART IMAGING INC.

Inventor： Hsin-Chia CHEN ,  Horng-Goung LAI ,  Feng-Cheng YANG ,  Hui-Hsuan CHEN ,  Ching-Lin CHUNG ,  Ming-Tsan KAO

IPC: B60S1/08

CPC classification number: B60S1/0833 ,  B60S1/0844 ,  G06K9/00791 ,  G06K9/00832 ,  G06K9/209 ,  Y10S318/02

Abstract: There is provided an optical raindrop detector including a light source, a light guide, an image sensor and a processing unit. The light source alternatively emits light with different brightness values. The light guide has an incident surface, a detection surface and an ejection surface, wherein the light source emits incident light into the light guide via the incident surface, and a plurality of microstructures are formed on the ejection surface to reflect the incident light to become scattered light toward the detection surface. The image sensor receives reflected light formed by raindrops in front of the detection surface reflecting the scattered light to penetrate the light guide and eject from the ejection surface, and generates image frames corresponding to the different brightness values of the light source. The processing unit calculates differential images of the image frames to accordingly identify rain intensity.

Abstract translation: 提供了一种包括光源，光导，图像传感器和处理单元的光学雨滴检测器。 光源交替地发出具有不同亮度值的光。 光导具有入射面，检测面和喷射面，其中光源通过入射面将入射光发射到光导中，并且在喷射表面上形成多个微结构以反射入射光，成为 散射光朝向检测面。 图像传感器接收由检测表面前方的雨滴形成的反射光，反射散射光以穿透光导并从喷射表面弹出，并产生与光源的不同亮度值对应的图像帧。 处理单元计算图像帧的差分图像以相应地识别雨强度。

公开(公告)号：US20130229387A1

公开(公告)日：2013-09-05

申请号：US13777436

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: G06F3/042 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/03547 ,  G06F3/0383 ,  G06F3/0425 ,  G06F3/0488

Abstract: An optical touch device includes a touch surface having a position mapping relationship with entire or a part of a picture displayed on a monitor, detects the object contacting or suspending over the touch surface and the movement of the optical touch device, and generates an absolute position signal according to the position of the detected object to point to the mapped position of the picture, a relative movement signal according to the detected movement of the optical touch device, and a control signal corresponding to the mapped position according to the absolute position signal and the relative movement signal.

Abstract translation: 光学触摸装置包括与显示在监视器上的图像的全部或一部分具有位置映射关系的触摸表面，检测在触摸表面上接触或悬挂的物体以及光学触摸装置的移动，并产生绝对位置 根据检测对象的位置指示图像的映射位置的信号，根据检测到的光学触摸装置的移动的相对移动信号，以及根据绝对位置信号对应于映射位置的控制信号，以及 相对运动信号。

公开(公告)号：US20130222346A1

公开(公告)日：2013-08-29

申请号：US13739566

申请日：2013-01-11

Applicant: PixArt Imaging Inc.

Inventor： Hsin-Chia CHEN ,  Hui-Hsuan CHEN ,  Cheng-Kuang SUN ,  Ming-Tsan KAO

IPC: G06F3/042

CPC classification number: G06F3/0425 ,  G06F3/0416 ,  G06F2203/04108

Abstract: There is provided an optical touch device including a light source, a light control unit, a light guide, an image sensor and a processing unit. The light control unit controls the light source to illuminate in different brightness values. The light guide has an incident surface, a touch surface and an ejection surface, wherein the light source emit incident light into the light guide through the incident surface, and a plurality of microstructures are formed inside of and/or on the ejection surface of the light guide to disperse the incident light toward the touch surface to become dispersed light. The image sensor receives reflected light ejecting from the ejection surface to generate image frames corresponding to the different brightness values of the light source. The processing unit calculates a differential image of the image frames to accordingly identify an operating state.

Abstract translation: 提供了一种包括光源，光控制单元，光导，图像传感器和处理单元的光学触摸装置。 光控制单元控制光源以不同的亮度值照亮。 光导具有入射表面，触摸表面和喷射表面，其中光源通过入射表面将入射光发射到光导中，并且多个微结构在其内部和/或喷射表面上形成 将入射光分散到触摸表面的光导向分散光。 图像传感器接收从喷射表面喷射的反射光，以产生对应于光源的不同亮度值的图像帧。 处理单元计算图像帧的差分图像以相应地识别操作状态。

公开(公告)号：US20130215257A1

公开(公告)日：2013-08-22

申请号：US13684864

申请日：2012-11-26

Applicant: PixArt Imaging Inc.

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

IPC: H04N5/225

CPC classification number: H04N5/2256 ,  G06F1/3259 ,  G06F3/0317 ,  G06F3/0325 ,  H04N5/332 ,  Y02D10/155

Abstract: There is provided an optical navigation device including at least one light source, an image sensor and a processing unit. The light source illuminates a work surface in a first brightness value and a second brightness value. The image sensor receives reflected light from the work surface and outputs a first image frame corresponding to the first brightness value and a second image frame corresponding to the second brightness value. The processing unit calculates a differential image of the first image frame and the second image frame and identifies an operating state according to the differential image.

Abstract translation: 提供了一种包括至少一个光源，图像传感器和处理单元的光学导航装置。 光源以第一亮度值和第二亮度值照亮工作表面。 图像传感器接收来自工作表面的反射光并输出对应于第一亮度值的第一图像帧和对应于第二亮度值的第二图像帧。 处理单元计算第一图像帧和第二图像帧的差分图像，并根据差分图像识别操作状态。

公开(公告)号：US20130129164A1

公开(公告)日：2013-05-23

申请号：US13683657

申请日：2012-11-21

Applicant: PIXART IMAGING INC.

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

IPC: G06K9/00

CPC classification number: G06K9/00013 ,  G06K9/00885 ,  G06K9/00892 ,  G06K2009/00932

Abstract: An identity recognition system and method capture an image of a subject that is projected by light of different wavelengths, extract various biometric informations from the image, analyze and compare for each of the biometric informations to generate a matching score, and determine an identity for the subject according to all of the matching scores. The system and method have higher recognition accuracy, lower false acceptance rate, lower false rejection rate, and higher flexibility.

Abstract translation: 身份识别系统和方法捕获由不同波长的光投射的对象的图像，从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，并且确定 根据所有匹配分数进行主题。 系统和方法具有较高的识别精度，较低的误码率，较低的误拒率和较高的灵活性。