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公开(公告)号：US10341584B2
公开(公告)日：2019-07-02
申请号：US16101942
申请日：2018-08-13
Applicant: PixArt Imaging Inc.
Inventor： Jung-Tai Lin , En-Feng Hsu
Abstract: An imaging device including a condenser lens and an image sensor is provided. The image sensor is configured to sense light penetrating the condenser lens and includes a pixel matrix, an opaque layer, a plurality of microlenses and an infrared filter layer. The pixel matrix includes a plurality of infrared pixels, a plurality of first pixels and a plurality of second pixels. The opaque layer covers upon a first region of the first pixels and a second region of the second pixels, wherein the first region and the second region are mirror-symmetrically arranged in a first direction. The plurality of microlenses is arranged upon the pixel matrix. The infrared filter layer covers upon the infrared pixels.
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公开(公告)号：US20180347976A1
公开(公告)日：2018-12-06
申请号：US16101795
申请日：2018-08-13
Applicant: PixArt Imaging Inc.
Inventor： En-Feng Hsu , Chia-Yu Liu
CPC classification number: G01C3/08 , G01J1/44 , G01S3/7803 , G01S3/783
Abstract: An optical sensor includes at least two optical sensing pixels and at least two different grating elements. These grating elements are disposed above these optical sensing pixels correspondingly.
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公开(公告)号：US10139223B2
公开(公告)日：2018-11-27
申请号：US15080679
申请日：2016-03-25
Applicant: PIXART IMAGING INC.
Inventor： En-Feng Hsu , Chia-Yu Liu
Abstract: A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first pixel in a predetermined direction. The first shielding layer is disposed on the first pixel and has a first opening, wherein an aperture of the first opening increases along the predetermined direction from a center of the first pixel. The second shielding layer is disposed on the second pixel and has a second opening, wherein a shape of the second opening is mirror symmetrical with that of the first opening in the predetermined direction. The at least one micro lens is disposed on the first shielding layer and the second shielding layer.
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104.发明授权公开(公告)号：US10127866B2
公开(公告)日：2018-11-13
申请号：US15253397
申请日：2016-08-31
Applicant: PIXART IMAGING INC.
Inventor： En-Feng Hsu , Meng-Huan Hsieh
Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.
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公开(公告)号：US20180150185A1
公开(公告)日：2018-05-31
申请号：US15879264
申请日：2018-01-24
Applicant: PixArt Imaging Inc.
Inventor： Yu-Hao Huang , Ming-Tsan Kao , En-Feng Hsu , Yi-Yuan Chen , Meng-Huan Hsieh
CPC classification number: G06F3/0421 , G06F3/011 , G06F3/017 , G06F3/0304 , G06F3/0416 , G06K9/00375
Abstract: An operation method of an optical touch device includes: emitting, by a light emitting unit, a light beam to illuminate an object; capturing, by an image sensing device, an image of the object reflecting the light beam; selecting all pixels in the image having a brightness greater than or equal to a brightness threshold; sorting the selected pixels along a first coordinate axis of the image, a second coordinate axis of the image or based a pixel brightness; selecting the top first predetermined ratio of pixels from the sorted pixels as an object image of the object; and calculating a gravity center of the object image according to positions of the top first predetermined ratio of pixels or according to the positions of the top first predetermined ratio of pixels with a weight of pixel brightness. An optical touch device is also provided.
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Patent Agency Ranking
公开(公告)号：US09891319B2
公开(公告)日：2018-02-13
申请号：US15006663
申请日：2016-01-26
Applicant: PIXART IMAGING INC.
Inventor： En-Feng Hsu
CPC classification number: G01S17/58 , G01N21/55 , G06F3/0304 , H04L12/6418
Abstract: The present invention relates to a movement detection device for detecting a movement of an object in a space range. The movement detection device includes a light source, a light guiding element, at least two light sensing elements and a processing unit. The light sensing elements have an offset therebetween along a first direction such that the object, when moving in the space range, reflects the light from the light source sequentially to the light sensing elements through the light guiding element. The processing unit identifies the movement of the object along the first direction according to a sequence that the light sensing elements detect the light reflected by the object.
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公开(公告)号：US09805236B2
公开(公告)日：2017-10-31
申请号：US15075831
申请日：2016-03-21
Applicant: PIXART IMAGING INC.
Inventor： En-Feng Hsu
CPC classification number: G06K7/10811 , G06K19/06018 , G06K19/06037
Abstract: Disclosed are coding and decoding methods using patterns and a system thereof. The object-images are obtained via detecting a pattern comprising objects. The distances between the object-images are obtained and a code is found based on the obtained distances between the object images. The distances between the object-images are defined as distances between centers of the object-images. As there are at least three objects in a pattern, a code is obtained based on a ratio of distances between object-images, which equals to a ratio of distances between objects. As there are at least four objects in a pattern, it is first determined whether a first ratio of object-images equals to a predetermined ratio of object-images. If no, a second ratio of object-images is obtained via a correcting factor and the first ratio of object-image, and finally a code is obtained based on the second ratio of object-images.
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公开(公告)号：US09721343B2
公开(公告)日：2017-08-01
申请号：US14996777
申请日：2016-01-15
Applicant: PIXART IMAGING INC.
Inventor： Yu-Hao Huang , En-Feng Hsu
CPC classification number: G06T7/74 , G06F3/017 , G06F3/0304 , G06K9/00335 , G06T2207/30196 , H04N5/2256
Abstract: A method and system provide light to project to an operation space so that a received image from the operation space will include, if an object is in the operation space, a bright region due to the reflection of light by the object, and identify a gesture according to the variation of a barycenter position, an average brightness, or an area of the bright region in successive images, for generating a corresponding command. Only simple operation and calculation is required to detect the motion of an object moving in the X, Y, or Z axis of an image, for identifying a gesture represented by the motion of the object.
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公开(公告)号：US09570492B2
公开(公告)日：2017-02-14
申请号：US14956364
申请日：2015-12-01
Applicant: PixArt Imaging Inc.
Inventor： Han-Chi Liu , Huan-Kun Pan , En-Feng Hsu
IPC: G01J5/00 , H01L27/146
CPC classification number: H01L27/14621 , H01L27/14627 , H01L27/14685
Abstract: A pixel array of an image sensor includes multiple red, green, blue and panchromatic pixels. The red, green and blue pixels are formed on a substrate during a first process. Planarization material is deposited to form the panchromatic pixels on the substrate and to form a planarization layer on the red, green and blue pixels during the same second process subsequent to the first process. The planarization material of the panchromatic pixels and the planarization layer is characterized in high transmittance and high aspect ratio.
Abstract translation: 图像传感器的像素阵列包括多个红色，绿色，蓝色和全色像素。 在第一处理期间，在基板上形成红色，绿色和蓝色像素。 沉积平面化材料以形成衬底上的全色像素，并且在第一过程之后的相同的第二过程中在红色，绿色和蓝色像素上形成平坦化层。 全色像素和平坦化层的平面化材料的特征在于高透射率和高纵横比。
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公开(公告)号：US20160205327A1
公开(公告)日：2016-07-14
申请号：US15073658
申请日：2016-03-18
Applicant: PixArt Imaging Inc.
Inventor： Hsin-Chi Cheng , En-Feng Hsu , Chi-Chieh Liao
IPC: H04N5/243 , H04N5/3745 , H04N5/235 , H04N5/378
CPC classification number: H04N5/243 , H04N5/2351 , H04N5/37455 , H04N5/378
Abstract: An image sensor comprising: an image sensing matrix, comprising at least one image sensing unit, for generating at least one image sensing signal according to a sensed image; an analog to digital converter, for converting the image sensing signal to a digital image sensing signal; an adjusting unit, for adjusting the digital image sensing signal to be an adjusted digital image sensing signal according to at least one adjusting parameter and the digital image sensing signal; an operational circuit, for computing at least part of brightness of the sensed image sensed by the image sensing unit according to the adjusted digital image sensing signal to generate at least one operational brightness signal; and a control unit, for adjusting the adjusting parameter, such that brightness information generated based on brightness values, which corresponds to the operational brightness signal, falls in a predetermined range.
Abstract translation: 一种图像传感器，包括：图像感测矩阵，包括至少一个图像感测单元，用于根据感测图像生成至少一个图像感测信号; 模数转换器，用于将图像感测信号转换为数字图像感测信号; 调整单元，用于根据至少一个调整参数和数字图像感测信号将数字图像感测信号调整为调整数字图像感测信号; 操作电路，用于根据经调整的数字图像感测信号计算由图像感测单元感测到的感测图像的亮度的至少一部分，以产生至少一个操作亮度信号; 以及控制单元，用于调整调整参数，使得基于与操作亮度信号相对应的亮度值生成的亮度信息落在预定范围内。
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