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公开(公告)号：US20230018006A1
公开(公告)日：2023-01-19
申请号：US17846496
申请日：2022-06-22
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen WANG
Abstract: There is provided an optical distance measurement device including a processor embedded with a first algorithm and a second algorithm. The first algorithm is used to calculate an object depth when an obstacle is distanced from the distance measurement device smaller than a predetermined distance. The second algorithm is used to calculate an object depth when the obstacle is distanced from the distance measurement device larger than the predetermined distance.
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公开(公告)号：US20160373645A1
公开(公告)日：2016-12-22
申请号：US15253453
申请日：2016-08-31
Applicant: PIXART IMAGING INC.
Inventor： Han-Chang LIN , Guo-Zhen WANG , Nien-Tse CHEN
CPC classification number: H04N5/23219 , G02B27/0093 , G06F3/013 , G06K9/00228 , G06K9/00597 , H04N5/23293
Abstract: An image system including a display device, an image sensor, a face detection engine, an eye detection engine and an eye protection engine is provided. The image sensor captures an image. The face detection engine recognizes a user face in the image. The eye detection engine recognizes user eyes in the image. The eye protection engine turns off the display device when the user eyes are recognized in the image but the user face is not recognized in the image.
Abstract translation: 提供了包括显示装置，图像传感器，面部检测引擎，眼睛检测引擎和眼睛保护引擎的图像系统。 图像传感器捕获图像。 脸部检测引擎识别图像中的用户面部。 眼睛检测引擎识别图像中的用户眼睛。 当图像中识别到用户的眼睛但用户脸部在图像中无法识别时，眼睛保护引擎会关闭显示设备。
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公开(公告)号：US20210298553A1
公开(公告)日：2021-09-30
申请号：US17344960
申请日：2021-06-11
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen WANG
Abstract: There is provided a moving robot including a light projector, an image sensor and a processing unit. The light projector projects a vertical light segment and a horizontal light segment toward a moving direction. The image sensor captures, toward the moving direction, an image frame containing a first light segment image associated with the vertical light segment and a second light segment image associated with the horizontal light segment. The processing unit recognizes a plush carpet in the moving direction when a vibration intensity of the second light segment image is higher than a predetermined threshold, and an obstacle height calculated according to the first light segment image is larger than a height threshold.
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公开(公告)号：US20170212578A1
公开(公告)日：2017-07-27
申请号：US15283842
申请日：2016-10-03
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen WANG
IPC: G06F1/32 , G06F3/038 , G06F3/03 , G06F3/0354
CPC classification number: G06F1/3259 , G06F3/0317 , G06F3/0354 , G06F3/03543 , G06F3/038 , Y02D10/155
Abstract: An optical mouse device includes a light source, an image sensor array, an energy storage element, a frame buffer and a processor, wherein the image sensor array includes a plurality of sensing pixels and a plurality of self-powered pixels. In a first mode, the sensing pixels output image data to the frame buffer, and the self-powered pixels output photocurrent to the energy storage element. In a second mode, the self-powered pixels output intensity data associated with the photocurrent to the frame buffer, and the processor determines whether to leave the second mode or not according to the intensity data. The energy storage element is configured to provide energy required in illumination.
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公开(公告)号：US20170118418A1
公开(公告)日：2017-04-27
申请号：US15252671
申请日：2016-08-31
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen WANG , Yi-Lei CHEN
CPC classification number: H04N5/332 , G06T7/571 , G06T2207/10024 , G06T2207/10048 , H04N5/2254 , H04N5/2257 , H04N5/3572
Abstract: A ranging system including a first aperture stop, a second aperture stop, an image sensor and a processing unit is provided. The first aperture stop includes a sheet of IR-cut filter material. The second aperture stop includes a sheet of opaque material. The image sensor receives light passing through the first and second aperture stops to output an image frame. The processing unit respectively calculates a convolution between a first color subframe of the image frame and a plurality of first blur kernels to generate a plurality of blurred first frames, respectively calculates a convolution between a second color subframe of the image frame and a plurality of second blur kernels to generate a plurality of blurred second frames, and performs a best matching between the blurred first frames and the blurred second frames.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170094153A1
公开(公告)日：2017-03-30
申请号：US15374499
申请日：2016-12-09
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen WANG , Ren-Hau GU , En-Feng HSU
CPC classification number: H04N5/23212 , G02B3/0006 , G02B7/28 , G02B7/365 , G06K7/10722 , G06K7/1417 , G06K9/00255 , H04N5/3696 , H04N13/218 , H04N13/229 , H04N13/232 , H04N13/257 , H04N2013/0081
Abstract: An imaging device including a pixel matrix and a processor is provided. The pixel matrix includes a plurality of phase detection pixels and a plurality of regular pixels. The processor performs autofocusing according to pixel data of the phase detection pixels, and determines an operating resolution of the regular pixels according to autofocused pixel data of the phase detection pixels, wherein the phase detection pixels are always-on pixels and the regular pixels are selectively turned on after the autofocusing is accomplished.
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公开(公告)号：US20240038055A1
公开(公告)日：2024-02-01
申请号：US17878063
申请日：2022-08-01
Applicant: PIXART IMAGING INC.
Inventor： Ching-Kun CHEN , Guo-Zhen WANG
IPC: G08B29/18 , G08B29/20 , G08B25/00 , G08B17/103
CPC classification number: G08B29/185 , G08B29/20 , G08B25/008 , G08B17/103
Abstract: There is provided a fire alarm device including multiple light sources, a light sensor, a first processor and a second processor. In a standby mode, the first processor identifies whether to wake up the second processor according to a detection result of the light sensor obtained by detecting emission light of one of the multiple light sources. The second processor identifies whether to generate an alarm according to a detection result of the light sensor obtained by detecting emission light of the multiple light sources. The fire alarm device further includes a thermal sensor for providing detected temperature values to the first processor and/or the second processor to perform the identifying procedure.
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公开(公告)号：US20200244861A1
公开(公告)日：2020-07-30
申请号：US16257277
申请日：2019-01-25
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen WANG
Abstract: There is provided an image processing device including a light sensor and a processor. The light sensor is used to detect light and output an image frame. The processor identifies intensity of ambient light according to an image parameter associated with the image frame. When the ambient light is identified to be strong enough, the processor performs an object identification directly using the image frame. When the ambient light is identified to be not enough, the processor firstly converts the image frame to a converted image using a machine learning model, and then performs the object identification using the converted image.
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公开(公告)号：US20200241550A1
公开(公告)日：2020-07-30
申请号：US16258675
申请日：2019-01-28
Applicant: PixArt Imaging Inc.
Inventor： Shih-Chin LIN , Wei-Chung WANG , Guo-Zhen WANG
Abstract: There is provided a cleaning robot including a first light source module and a second light source module respectively project a first light section and a second light section, which are vertical light sections, in front of a moving direction, wherein the first light section and the second light section cross with each other at a predetermined distance in front of the cleaning robot so as to eliminate a detection dead zone between the first light source module and the second light source module in front of the cleaning robot to avoid collision with an object during operation.
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公开(公告)号：US20180373380A1
公开(公告)日：2018-12-27
申请号：US15634145
申请日：2017-06-27
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen WANG , Han-Chang LIN
Abstract: An optical control key including a light source, a pixel array and a processor is provided. The light source is used to illuminate a skin surface. The pixel array has a first pixel region and a second pixel region. The processor is used to identify whether a touch is made by a human body according to pixel data of the first pixel region, and identify human body motion according to pixel data of the second pixel region.
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