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公开(公告)号：USRE48624E1
公开(公告)日：2021-07-06
申请号：US15586759
申请日：2017-05-04
Applicant: PixArt Imaging Inc.
Inventor： En-Feng Hsu , Ming-Tsan Kao
Abstract: An event data recorder (EDR) is configured to operate in a driving mode and a parking mode. In the driving mode, the EDR is configured to perform high quality video recording using an image-capturing circuit. In the parking mode, the EDR is configured to periodically activate the image-capturing circuit for event detection and start to perform low quality video recording after detecting a specific event.
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公开(公告)号：US10935661B2
公开(公告)日：2021-03-02
申请号：US16281330
申请日：2019-02-21
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen Wang , Ming-Tsan Kao
Abstract: Disclosed are a distance measuring method and a distance measuring apparatus. During the distance measuring, an image is obtained. If the location of a center of gravity of the image is within a first segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point, according to a first mapping relationship and the location of a center of gravity of the image. If the location of a center of gravity of the image is within a second segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point according to a second mapping relationship and the location of a center of gravity of the image.
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公开(公告)号：US10747326B2
公开(公告)日：2020-08-18
申请号：US14097442
申请日：2013-12-05
Applicant: PIXART IMAGING INC.
Inventor： Sen-Huang Huang , Ming-Tsan Kao , En-Feng Hsu , Yu-Hao Huang , Nien-Tse Chen
IPC: G06F3/01 , G06K9/00 , H04N5/247 , G06F3/0346
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.
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公开(公告)号：US20190015049A1
公开(公告)日：2019-01-17
申请号：US16120531
申请日：2018-09-04
Applicant: PixArt Imaging Inc.
Inventor： Chih-Yuan Chuang , Cheng-Nan Tsai , Ming-Tsan Kao , Ren-Hau Gu , Yen-Min Chang
IPC: A61B5/00 , A61B5/024 , 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.
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公开(公告)号：US09841846B2
公开(公告)日：2017-12-12
申请号：US14991062
申请日：2016-01-08
Applicant: PixArt Imaging Inc.
Inventor： Ming-Tsan Kao , Tzung-Min Su , Chih-Hsin Lin
CPC classification number: G06F3/0421 , G06F3/0416
Abstract: An exposure mechanism of an optical touch system, which includes a plurality of image sensors and a plurality of active light sources each irradiating corresponding to the associated image sensor, includes: capturing image frames using the image sensors with a sampling cycle to allow each of the image sensors to capture a bright image, wherein the sampling cycle includes a plurality of working modes and in each of the working modes at least one of the image sensors captures the bright image in a sampling interval; simultaneously capturing a dark image using all the image sensors in a denoising sampling interval; and calculating a differential image between the bright image and the dark image captured by each image sensor.
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Patent Agency Ranking
公开(公告)号：US09599988B2
公开(公告)日：2017-03-21
申请号：US14450377
申请日：2014-08-04
Applicant: PIXART IMAGING INC.
Inventor： Chia-Cheun Liang , Ming-Tsan Kao , Yi-Hsien Ko , Hsin-Chia Chen
CPC classification number: G05D1/0246
Abstract: There is provided a mobile carrier and an auto following system using the mobile carrier. The mobile carrier is capable of capturing at least an image of a guiding light source and automatically following the guiding light source based on the captured image of the guiding light source. The mobile carrier is further disposed with a mobile light source for a remote image sensing device to capture an image of the mobile light source while the mobile carrier cannot capture the image of the guiding light source, so that the mobile carrier can be guided by a control signal provided according to the captured image of the mobile light source.
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公开(公告)号：US09541379B2
公开(公告)日：2017-01-10
申请号：US13916631
申请日：2013-06-13
Applicant: PixArt Imaging Inc
Inventor： Yu-Hao Huang , Ming-Tsan Kao , Sen-Huang Huang
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。
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公开(公告)号：US09433382B2
公开(公告)日：2016-09-06
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: A61B5/00 , A61B5/11 , A61B5/1455 , G06F3/03
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。
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79.发明授权Object tracking device capable of removing background noise and operating method thereof 有权能够去除背景噪声的对象追踪装置及其操作方法公开(公告)号：US09234756B2
公开(公告)日：2016-01-12
申请号：US13947961
申请日：2013-07-22
Applicant: PixArt Imaging Inc.
Inventor： Ming-Tsan Kao , Shu-Sian Yang , Han-Ping Cheng
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。
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80.发明授权公开(公告)号：US09049333B2
公开(公告)日：2015-06-02
申请号：US14198547
申请日：2014-03-05
Applicant: PixArt Imaging Inc.
Inventor： Ming-Tsan Kao , Hsin-Chi Cheng , Yi-Hsien Ko
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。
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