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11.发明申请公开(公告)号：US20180348032A1
公开(公告)日：2018-12-06
申请号：US15609023
申请日：2017-05-31
Applicant: PixArt Imaging Inc.
Inventor： Hsin-Chia Chen , Sen-Huang Huang , Wei-Chung Wang , Chao-Chien Huang , Ting-Yang Chang , Chun-Wei Chen
Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.
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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
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。
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13.发明授权Optical navigating apparatus and computer readable recording media for performing optical navigating method 有权用于执行光学导航方法的光学导航装置和计算机可读记录介质公开(公告)号：US09201543B2
公开(公告)日：2015-12-01
申请号：US13735034
申请日：2013-01-07
Applicant: PixArt Imaging Inc.
Inventor： Chun-Chen Chen , Hsin-Chia Chen , Yen-Min Chang
CPC classification number: G06F3/042 , G06F1/3259 , G06F3/0416 , Y02D10/155
Abstract: An optical navigating apparatus, comprising: a displacement detecting apparatus, for determining if the optical navigating apparatus has displacement relative to an target, and for generating a displacement signal according to the displacement; and a touch control panel, for detecting a touch control operation of an user, wherein the touch control panel has a sampling rate and changes the sampling rate according to a control signal, wherein the sampling rate can be adjusted according to the displacement signal, where the sampling rate correspondingly decreases when the displacement signal indicates the displacement increases.
Abstract translation: 一种光学导航装置，包括：位移检测装置，用于确定所述光学导航装置是否具有相对于目标的位移，并且用于根据所述位移产生位移信号; 以及用于检测用户的触摸控制操作的触摸控制面板，其中所述触摸控制面板具有采样率并根据控制信号改变所述采样率，其中所述采样率可以根据所述位移信号进行调整，其中 当位移信号指示位移增加时，采样率相应地减小。
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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。
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15.发明授权Windshield wiper controller, optical raindrop detector and detection method thereof 有权挡风玻璃刮水器控制器，光学雨滴检测器及其检测方法公开(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
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。
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Patent Agency Ranking
16.发明授权Method, system and processing software for distance measurement using speckle patterns 有权使用斑点图案进行距离测量的方法，系统和处理软件公开(公告)号：US08891830B2
公开(公告)日：2014-11-18
申请号：US14138426
申请日：2013-12-23
Applicant: PixArt Imaging Inc.
Inventor： Shu-Sian Yang , Ren-Hau Gu , Hsin-Chia Chen , Sen-Huang Huang
CPC classification number: G01B11/14 , G01B11/002 , G01S17/08 , G06K9/64
Abstract: A distance measurement system and method are provided. The distance measurement method first projects a light beam with a speckle pattern to reference planes and an object to allow the reference planes and a surface of the object each have an image of the speckle pattern, the speckle pattern having a plurality of speckles. Next, images of the speckle pattern reflected by the reference planes are captured to generate reference image information, and an image of the speckle pattern reflected by the surface of the object is captured to generate an object image information. A processing module which may be a processing software can compare the object image information with the reference image information to obtain several similarity scores. If the most the most similarity score is greater than a threshold value, the processing module identifies the corresponding reference plane, thereby computing the position of the object.
Abstract translation: 提供了距离测量系统和方法。 距离测量方法首先将具有散斑图案的光束投射到参考平面，并且使对象允许参考平面和物体的表面各自具有斑点图案的图像，斑点图案具有多个斑点。 接下来，捕获由参考平面反射的斑纹图案的图像以生成参考图像信息，并且捕获由对象的表面反射的斑纹图案的图像以生成对象图像信息。 可以是处理软件的处理模块可以将对象图像信息与参考图像信息进行比较，以获得多个相似度分数。 如果最相似性得分大于阈值，则处理模块识别对应的参考平面，由此计算对象的位置。
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17.发明授权Software embodied on a non-transitory storage media for distance measurement using speckle pattern 有权在非瞬时存储介质上体现的软件，用于使用斑点图案进行距离测量公开(公告)号：US08699757B2
公开(公告)日：2014-04-15
申请号：US13967430
申请日：2013-08-15
Applicant: PixArt Imaging Inc.
Inventor： Shu-Sian Yang , Hsin-Chia Chen , Ren-Hau Gu , Sen-Huang Huang
IPC: G06K9/00
CPC classification number: G06K9/6215 , G01B11/026 , G01S17/46
Abstract: A storage media provided by the present invention, has a non-transitory processing software for computing a position of an object in a distance measurement system, the execution of the processing software comprising: receiving a plurality of reference image information contained in an image with a speckle pattern, wherein the image is projected from a light beam on a plurality of reference flat surfaces which are located on different position points, and the speckle contains a plurality of speckles; receiving an object image information contained in an image with the speckle pattern which is projected from the light beam on an object; obtaining a plurality of comparison results through comparing the plurality of reference image information with the object image information; and computing the position of the object through performing an interpolation operation to the plurality of comparison results.
Abstract translation: 由本发明提供的存储介质具有用于计算距离测量系统中的对象的位置的非暂时性处理软件，所述处理软件的执行包括：接收包含在图像中的多个参考图像信息 斑纹图案，其中图像从位于不同位置点上的多个参考平面上的光束投射，并且斑点包含多个斑点; 接收包含在图像中的物体图像信息，其中所述斑点图案从光束投影在物体上; 通过将多个参考图像信息与对象图像信息进行比较来获得多个比较结果; 以及通过对所述多个比较结果执行内插操作来计算所述对象的位置。
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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。
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公开(公告)号：US20210382514A1
公开(公告)日：2021-12-09
申请号：US17411022
申请日：2021-08-24
Applicant: PixArt Imaging Inc.
Inventor： Wei-Chung Wang , Hsin-Chia Chen , Hui-Hsuan Chen , Chao-Chien Huang , Chu-Hung Nien
Abstract: A pressure detection device of detecting a forced state of a deformable object includes a body, an image sensor and a processor. The body is a deformable hollow structure. The body has an inner surface and an outer surface, and an identifiable vision feature is disposed on the inner surface. The image sensor is disposed inside the body and faces the inner surface of the body, and is adapted to capture a frame containing the identifiable vision feature on the inner surface. The processor is electrically connected with the image sensor, and adapted to analyze position variation of the identifiable vision feature within the captured frame for identifying a motion type of a gesture applied to the outer surface of the body.
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20.发明申请公开(公告)号：US20200182672A1
公开(公告)日：2020-06-11
申请号：US16787051
申请日：2020-02-11
Applicant: PixArt Imaging Inc.
Inventor： Hsin-Chia Chen , Sen-Huang Huang , Wei-Chung Wang , Chao-Chien Huang , Ting-Yang Chang , Chun-Wei Chen
Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.
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