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公开(公告)号：US11826906B2
公开(公告)日：2023-11-28
申请号：US17102558
申请日：2020-11-24
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen Wang
CPC classification number: B25J19/021 , G01S17/04 , A47L2201/04
Abstract: A method for eliminating misjudgment of a reflective light applied to an autonomous robot is provided. The autonomous robot includes a driving system and an optical sensing system that includes a light source and a light sensor. The light source emits a transverse linear light as detection light and the light sensor senses reflective light signals from an object that reflects the detection light. In the method, a frame image including the reflective light signals is captured by the light sensor, characteristics of the reflective light signals are analyzed, and the characteristics of the reflective light signals can be corrected based on the characteristics of previous reflective light signals stored in a memory of the autonomous robot in order to exclude abnormal information. The object can be confirmed based on the corrected characteristics of reflective light signals. The misjudgment caused by the abnormal information can therefore be eliminated.
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公开(公告)号：US20230326062A1
公开(公告)日：2023-10-12
申请号：US18207138
申请日：2023-06-08
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang , Tse-En Peng
IPC: G01F23/292 , G01F23/80 , G06T7/62
CPC classification number: G06T7/62 , G01F23/292 , G01F23/802
Abstract: A liquid providing system of detecting a target container includes a main body, a holder, an optical sensor and an operational processor. The main body has a supporting platform. The holder is disposed on the supporting platform, and the holder is made by low reflectivity material and adapted to hold the target container. The optical sensor is disposed above the supporting platform and adapted to output a detection image containing the target container and the holder. The operational processor is electrically connected to the optical sensor, and adapted to analyze the detection image and then acquire an effective feature inside the detection image for distinguishing the target container from the holder.
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公开(公告)号：US11756331B2
公开(公告)日：2023-09-12
申请号：US17334600
申请日：2021-05-28
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen Wang , Han-Chang Lin
IPC: H04N5/232 , G06K9/00 , G06V40/16 , G06V10/10 , H04N23/667 , H04N23/611 , H04N23/65
CPC classification number: G06V40/166 , G06V10/17 , H04N23/611 , H04N23/651 , H04N23/667
Abstract: A portable electronic device is provided. The portable electronic device includes a body, an image sensor and a main system. The image sensor continually captures a first image outside the body, detects at least one motion of a user according to the first image, and generates a control signal related to the motion. The main system receives the control signal from the image sensor and executes a function or a service corresponding to the motion according to the control signal.
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公开(公告)号：US11752635B2
公开(公告)日：2023-09-12
申请号：US17064776
申请日：2020-10-07
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
CPC classification number: B25J9/1697 , B25J9/163 , B25J9/1653 , B25J13/089 , G06T7/70 , A47L11/4011 , A47L2201/04 , B25J5/00 , B25J9/0003 , B25J11/0085 , G05D1/0221 , G05D1/0238 , G06T2207/20081
Abstract: There is provided a mobile robot that controls an exposure time of an optical sensor during a time interval during which images of a gap between tiles are captured. At an end of the time interval that an image of a gap between tiles is captured, the exposure time of the optical sensor is adjust to the exposure time being used right before the time interval to avoid high brightness of the captured image while the image of a gap between tiles is suddenly disappeared from a field of view of the optical sensor.
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公开(公告)号：US11616906B2
公开(公告)日：2023-03-28
申请号：US17515739
申请日：2021-11-01
Applicant: PixArt Imaging Inc.
Inventor： Han-Chang Lin , Guo-Zhen Wang , Nien-Tse Chen
Abstract: An electronic 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.
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Patent Agency Ranking
公开(公告)号：US20220178842A1
公开(公告)日：2022-06-09
申请号：US17393424
申请日：2021-08-04
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang , Hung-Ching Lai
Abstract: A detecting device for detecting liquid or colloid, comprising: a light emitting device, configured to emit first light, wherein a first angle between a first emitting direction of the first light and a surface when the detecting device is located on the surface, wherein the first angle is larger than 0° and smaller than 90°; an optical sensor, configured to detect first optical data generated based on the first light; and a processing circuit, configured to determine if the liquid or the colloid exists in a predetermined range of the detecting device based on the first optical data. An automatic cleaner applying the detecting device is also disclosed.
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公开(公告)号：US20220120600A1
公开(公告)日：2022-04-21
申请号：US17071986
申请日：2020-10-15
Applicant: PixArt Imaging Inc.
Inventor： Feng-Chi Liu , Chi-Chieh Liao , Guo-Zhen Wang , Hung-Ching Lai
IPC: G01F23/292 , G01F23/00
Abstract: An optical detection device of detecting a target container includes a linear light source, an optical sensor array and a processor. The linear light source is adapted to project a long strip illumination beam onto the target container. The optical sensor array includes a plurality of sensing units arranged as a long strip adapted to receive a long strip detection beam reflected from the target container. The processor is electrically connected to the optical sensor array. The processor is adapted to analyze intensity distribution of the plurality of sensing units to acquire a relative distance between the optical sensor array and a rim of the target container.
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公开(公告)号：US20220011429A1
公开(公告)日：2022-01-13
申请号：US17485518
申请日：2021-09-27
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
IPC: G01S17/48 , G01S7/4912
Abstract: An optical distance measurement method includes: acquiring a plurality of sensed values based on detecting light; performing a filtering operation to select a plurality of selected sensed values from the plurality of sensed values; determining a location of a centroid according to the plurality of selected sensed values; and calculating a plurality of depth values with respect to a plurality of detecting points according to the location of the centroid and a plurality of depth information transformation functions respectively corresponding to the detecting points.
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公开(公告)号：US20210247327A1
公开(公告)日：2021-08-12
申请号：US17242296
申请日：2021-04-27
Applicant: PixArt Imaging Inc.
Inventor： Tsung-Fa Wang , Hung-Ching Lai , Guo-Zhen Wang
Abstract: An electronic device, comprising: a first light source, configured to emit first light; a second light source, configured to emit second light; a first optical sensor, configured to sense first optical data generated based on reflected light of the first light; a light guiding device, configured to receive the second light; and a second optical sensor, configured to sense second optical data generated based on the second light emitted by the light guiding device. The first optical sensor and the second optical sensor can be integrated to a single optical sensor.
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公开(公告)号：US10917581B2
公开(公告)日：2021-02-09
申请号：US16012982
申请日：2018-06-20
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang , Shiaw-Yu Jou
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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