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公开(公告)号：US20230016001A1
公开(公告)日：2023-01-19
申请号：US17947167
申请日：2022-09-18
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
Abstract: A material determining device comprising a first image sensor, a second image sensor, and a light source is provided. The material determining method comprises: (a) sensing a first image by the first image sensor according to light from the light source; (b) sensing a second image by the second image sensor according to the light; and (c) determining whether material corresponding to material images in the first image and the second image is first type of material or second type of material, according to locations of the material images in the first image and the second image and according to shapes of the material images in the first image and the second image. By this way an electronic device using the material determining device can properly operate according to the type of material.
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公开(公告)号：US11558554B2
公开(公告)日：2023-01-17
申请号：US17141339
申请日：2021-01-05
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang , Shiaw-Yu Jou
Abstract: An imaging system includes a light source, an image sensor and a processing unit. The image sensor alternatively captures a first bright image, a first dark image, a second bright image and a second dark image, wherein the first bright image is captured with a first exposure time corresponding to activation of the light source within a first time interval, the first dark image is captured with the first exposure time corresponding to deactivation of the light source within the first time interval, the second bright image is captured with a second exposure time corresponding to activation of the light source within a second time interval, and the second dark image is captured with the second exposure time corresponding to deactivation of the light source within the second time interval, wherein the second exposure time is longer than the first exposure time. The processing unit adjusts the second exposure time according to an object image size in the second dark image, and controls the image sensor to stop capturing the first bright and dark images with the first exposure time when no object image is contained in the second dark image.
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153.发明申请公开(公告)号：US20220373329A1
公开(公告)日：2022-11-24
申请号：US17881586
申请日：2022-08-04
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
Abstract: An auto clean machine, comprising: an optical sensor; a light source, configured to generate a first light pattern; and a processing circuit, configured to determine which light pattern is the first light pattern if the optical sensor senses more than one light pattern. The present invention also discloses
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公开(公告)号：US11490021B2
公开(公告)日：2022-11-01
申请号：US16799842
申请日：2020-02-25
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
Abstract: An image capturing device comprising an image sensor. The image sensor comprises: a first sensing region, having a first sensing threshold; and a second sensing region, having a second sensing threshold lower than the first sensing threshold. At least one object image is determined to be invalid when the object image captured by the first sensing region has brightness formation lower the first sensing threshold. At least one the object image is determined to be invalid when the object image captured by the second sensing region has brightness formation lower the second sensing threshold. The present invention also discloses a distance measuring device using the image sensor.
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公开(公告)号：US11340352B2
公开(公告)日：2022-05-24
申请号：US16654022
申请日：2019-10-16
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
IPC: G01S17/48 , G01S7/4912
Abstract: An image noise compensating system, comprising: a distance determining device, configured to determine whether a distance between an object and an electronic device comprising the image noise compensating system is larger than a distance threshold or not; an image sensor, comprising at least one image sensing unit, wherein the image sensor combines a plurality of image sensing units to sense images when the distance is smaller than the distance threshold and senses images without combining the image sensing units when the distance is larger than the distance threshold; and an noise compensating circuit, configured to compensate image noises according to the images sensed by the image sensor.
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Patent Agency Ranking
156.发明申请公开(公告)号：US20220130281A1
公开(公告)日：2022-04-28
申请号：US17571510
申请日：2022-01-09
Applicant: PixArt Imaging Inc.
Inventor： Han-Lin Chiang , Ning Shyu , Guo-Zhen Wang
Abstract: An electronic device control method, for calling a first electronic device in a building, comprising: (a) receiving a call command from an user by the first electronic device; (b) acquiring map information of the building by the first electronic device corresponding to the call command; and (c) driving the first electronic device to go to a user region in which the user is located according to the map information, wherein the user region is a predetermined region of a user location of the user.
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公开(公告)号：US11270149B2
公开(公告)日：2022-03-08
申请号：US16898586
申请日：2020-06-11
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen Wang
Abstract: The present disclosure discloses an image recognition method and system based on deep learning. The image recognition method trains a recognizing engine for high resolution images and a recognizing engine for low resolution image separately. The two recognizing engines generate two independent feature groups specifically for high resolution and low resolution images respectively. A categorizing engine categorizes a testing image to a high resolution mode or a low resolution mode, and then the testing image is recognized by the appropriate recognizing engine. Therefore, the present disclosure increases the accuracy of image recognition under various conditions.
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公开(公告)号：US11221207B2
公开(公告)日：2022-01-11
申请号：US16601648
申请日：2019-10-15
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
Abstract: There is provided an optical distance measurement system including an image sensor and a processing unit. The processing unit is configured to generate an image to be calculated according to at least one image captured by the image sensor, wherein different image regions of the image to be calculated correspond to different exposure times thereby improving the accuracy of the distance calculation.
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159.发明申请公开(公告)号：US20210396514A1
公开(公告)日：2021-12-23
申请号：US16907329
申请日：2020-06-22
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
Abstract: An optical navigation device comprising: a processing circuit; a first light source, configured to emit first light; a cover; at least one second light source, configured to emit second light toward the cover; and an first optical sensor, configured to sense first optical data generated according to the first light and to sense second optical data generated according to the second light on the cover. The processing circuit determines a dirtiness level of the cover based on the second optical data sensed by the first optical sensor. The optical navigation device can further comprise a second optical sensor. Also, an optical navigation device which can avoid the interference of another optical navigation device is also disclosed.
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160.发明申请公开(公告)号：US20210201027A1
公开(公告)日：2021-07-01
申请号：US17203772
申请日：2021-03-17
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
IPC: G06K9/00
Abstract: An object determining system, comprising: an optical sensor, comprising a kind determining region and an element analyzing region, wherein the optical sensor acquires first optical data via the kind determining region, and acquires second optical data via the element analyzing region, wherein the kind determining region and the element analyzing region are different regions of the optical sensor; a kind determining circuit, configured to determine an object kind of the object according to the first optical data; and an element analyzing circuit, configured to analyze element of the object according to the second optical data.
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