公开(公告)号：US08914197B2

公开(公告)日：2014-12-16

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 ,  G06K9/00 ,  G06K9/20

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：US20140340721A1

公开(公告)日：2014-11-20

申请号：US14198547

申请日：2014-03-05

Applicant: PixArt Imaging Inc.

Inventor： Ming-Tsan Kao ,  Hsin-Chi Cheng ,  Yi-Hsien Ko

IPC: H04N1/028

CPC classification number: H04N1/02815 ,  G06F3/03542 ,  G06F3/0416 ,  G06F3/042 ,  H04N1/40056 ,  H04N5/2353 ,  H04N5/2357

Abstract: A method of synchronization adjustment is applied to an optical detecting device, so as to synchronize an exposure timing sequence of an image detector with a light emitting timing sequence of an indicating light source. The method includes acquiring a continued image set, analyzing intensity of each image of the continued image set, and adjusting the exposure timing sequence according to duty cycle of the image detector and intensity ratio of at least two images. An exposure frequency of the image detector is greater than a flickering frequency of the indicating light source.

Abstract translation: 将同步调整的方法应用于光学检测装置，以使图像检测器的曝光定时序列与指示光源的发光定时序列同步。 该方法包括获取连续图像集合，分析连续图像集合的每个图像的强度，以及根据图像检测器的占空比和至少两个图像的强度比调整曝光时序。 图像检测器的曝光频率大于指示光源的闪烁频率。

公开(公告)号：US08836923B2

公开(公告)日：2014-09-16

申请号：US13959758

申请日：2013-08-06

Applicant: PixArt Imaging Inc.

Inventor： En-Feng Hsu ,  Chi-Chieh Liao ,  Ming-Tsan Kao

IPC: G01C3/08 ,  G01C3/10 ,  G01S7/491 ,  G01S17/48

CPC classification number: G01C3/08 ,  G01C3/10 ,  G01S7/4918 ,  G01S17/48

Abstract: A light source transmits detecting light toward an object. The object reflects the detecting light and forms a reflected light. A sensor is used for sensing the reflected light. Then, an exposure control unit coupled to the sensor performs luminance convergence on the reflected light according to luminance of the reflected light sensed by the sensor. And a distance measurement device coupled to the sensor detects a distance between the object and the light source and/or the sensor according to an image position of the reflected light on the sensor.

Abstract translation: 光源向物体传输检测光。 物体反射检测光并形成反射光。 传感器用于感测反射光。 然后，耦合到传感器的曝光控制单元根据由传感器感测的反射光的亮度对反射光进行亮度会聚。 并且耦合到传感器的距离测量装置根据传感器上的反射光的图像位置来检测物体与光源和/或传感器之间的距离。

公开(公告)号：US20140210715A1

公开(公告)日：2014-07-31

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: 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.

公开(公告)号：US20140160017A1

公开(公告)日：2014-06-12

申请号：US13865172

申请日：2013-04-17

Applicant: PIXART IMAGING INC.

Inventor： Yu-Hao Huang ,  Yi-Fang Lee ,  Ming-Tsan Kao ,  Sen-Huang Huang

IPC: G06F3/01

CPC classification number: G06F3/017 ,  G06F3/0484

Abstract: An electronic apparatus controlling method includes: determining if displacement of an object in a first predetermined time period is smaller than a first predetermined distance to generate a determining result; and controlling the electronic apparatus to perform a first predetermined action if the determining result is no, and controlling the electronic apparatus to perform a deciding step if the determining result is yes. The deciding step is utilized for deciding if a second predetermined action is performed according to a coordinates of the object at the end of the first predetermined time period.

Abstract translation: 一种电子设备控制方法，包括：确定物体在第一预定时间段内的位移是否小于第一预定距离以产生确定结果; 以及如果所述确定结果为否，则控制所述电子设备执行第一预定动作，并且如果所述确定结果为是，则控制所述电子设备执行判定步骤。 决定步骤用于根据在第一预定时间段结束时的对象的坐标来确定是否执行第二预定动作。

公开(公告)号：US20140092019A1

公开(公告)日：2014-04-03

申请号：US13890239

申请日：2013-05-08

Applicant: PIXART IMAGING INC.

Inventor： Ching-Chih Chen ,  Ming-Tsan Kao ,  Chih-Yen Wu ,  Chien-Jung Huang ,  Yao-Hsuan Lin ,  Tzu-Yu Chen

IPC: G06F3/0354

CPC classification number: G06F3/03543 ,  G06F3/0317

Abstract: An optical navigation method includes: detecting inertia of an image of a feature point; and determining an effective sensing region of an image sensing array according to the detected inertia for reducing power consumption. Besides, an optical navigation apparatus includes a detecting circuit and a determining unit. The detecting circuit is arranged for detecting a moving inertia of a feature point. The determining circuit is coupled to the detecting circuit, and arranged for determining an effective sensing region of an image sensing array according to the detected moving inertia for reducing power consumption.

Abstract translation: 光学导航方法包括：检测特征点的图像的惯性; 以及根据检测到的惯性来确定图像感测阵列的有效感测区域以减少功耗。 此外，光学导航装置包括检测电路和确定单元。 该检测电路用于检测特征点的移动惯性。 确定电路耦合到检测电路，并且被布置为根据检测到的移动惯量来确定图像感测阵列的有效感测区域以减少功耗。

公开(公告)号：US20130320191A1

公开(公告)日：2013-12-05

申请号：US13709079

申请日：2012-12-10

Applicant: PIXART IMAGING INC.

Inventor： Hsin-Chia Chen ,  Shu-Sian Yang ,  Yi-Fang Lee ,  Ming-Tsan Kao

IPC: G01J1/04

CPC classification number: G01J1/04 ,  G06F3/0421 ,  G06F3/0425

Abstract: An optical detecting apparatus, which comprises: a detecting surface; a first light source, for providing light parallel to the detecting surface; an image sensor, for detecting an object close to the detecting surface, to generate object image data; and an object location determining apparatus, for computing location information of the object according to the object image.

Abstract translation: 一种光学检测装置，包括：检测表面; 第一光源，用于提供平行于检测表面的光; 图像传感器，用于检测靠近所述检测表面的物体，以产生对象图像数据; 以及对象位置确定装置，用于根据对象图像计算对象的位置信息。

公开(公告)号：US11847857B2

公开(公告)日：2023-12-19

申请号：US17534870

申请日：2021-11-24

Applicant: PixArt Imaging Inc.

Inventor： Liang-Chi Chiu ,  Yu-Han Chen ,  Ming-Tsan Kao

IPC: G06V40/16 ,  B60R25/25 ,  G06V20/59

CPC classification number: G06V40/174 ,  B60R25/25 ,  G06V20/59 ,  G06V2201/10

Abstract: A vehicle device setting method including: capturing, by an image sensing unit, a first image frame; recognizing a user ID according to the first image frame; showing ID information of the recognized user ID on a screen or by a speaker; capturing a second image frame; generating a confirm signal when a first user expression is recognized by calculating an expression feature in the second image frame and comparing the recognized expression feature with stored expression data associated with a predetermined user expression to confirm whether the recognized user ID is correct or not according to the second image frame captured after the ID information is shown; controlling an electronic device according to the confirm signal; and entering a data update mode instructed by the user and updating setting information of the electronic device by current electronic device setting according to a saving signal generated by confirming a second user expression in a third image frame captured after the user ID is confirmed through showing the ID information.

公开(公告)号：US11455044B2

公开(公告)日：2022-09-27

申请号：US16909298

申请日：2020-06-23

Applicant: PixArt Imaging Inc.

Inventor： Sen-Huang Huang ,  Ming-Tsan Kao ,  En-Feng Hsu ,  Yu-Hao Huang ,  Nien-Tse Chen

IPC: G06F3/01 ,  G06V40/20 ,  H04N5/247 ,  G09G5/00

Abstract: The present invention provides a motion detecting system, which includes a light source module, a plurality of image sensors and a control unit. The light source module illuminates at least one object. The image sensors respectively detect the object under the light emitted by the light source module to generate a plurality of detection results. The control unit is coupled to the image sensors, and generates a control command according to the detection results.

公开(公告)号：US20210295622A1

公开(公告)日：2021-09-23

申请号：US17342898

申请日：2021-06-09

Applicant: PixArt Imaging Inc.

Inventor： En-Feng Hsu ,  Ming-Tsan Kao

IPC: G07C5/08 ,  H04N5/225

Abstract: An event detecting device operates in a driving mode or a parking mode. In the driving mode, the event detecting device performs high quality video recording using an image-capturing circuit. In the parking mode, the event detecting device periodically activates the image-capturing circuit for event detection and starts to perform low quality video recording after detecting a specific event.