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公开(公告)号：US20230332962A1
公开(公告)日：2023-10-19
申请号：US18207680
申请日：2023-06-09
Applicant: PixArt Imaging Inc.
Inventor： CHIH-MING SUN
CPC classification number: G01L1/144 , H05K1/118 , H05K1/0393 , H05K2201/10151
Abstract: There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed.
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公开(公告)号：US11792550B2
公开(公告)日：2023-10-17
申请号：US18071477
申请日：2022-11-29
Applicant: PixArt Imaging Inc.
Inventor： Ren-Chieh Liu , Chih-Huan Wu , Yi-Hsien Ko , Han-Chi Liu
IPC: H04N25/772 , H01L27/146
CPC classification number: H04N25/772 , H01L27/14643
Abstract: There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.
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公开(公告)号：US20230326418A1
公开(公告)日：2023-10-12
申请号：US18208893
申请日：2023-06-13
Applicant: PixArt Imaging Inc.
Inventor： EN-FENG HSU , MENG-HUAN HSIEH
CPC classification number: G09G3/3406 , G09G3/3648 , G09G2330/021 , G09G2320/0626 , G09G2360/144
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：US20230325617A1
公开(公告)日：2023-10-12
申请号：US17844285
申请日：2022-06-20
Applicant: PixArt Imaging Inc.
Inventor： WEN-HAN YAO
CPC classification number: G06K7/10722 , G06T2207/10024 , G06K7/1413 , G06T7/90
Abstract: There is provided a barcode detection device including an image sensor and a processor. The image sensor captures an image frame of a color barcode. The processor sequentially processes every row of the image frame to find at least one color segment in each row of the image frame, categorizes color segments of a same color in one cluster according to a position relationship and a color similarity of the color segments in the image frame, and recognize a color of the pixels in one cluster according to color parameters of pixels in said one cluster.
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公开(公告)号：US11783633B2
公开(公告)日：2023-10-10
申请号：US17333022
申请日：2021-05-28
Applicant: PIXART IMAGING INC.
Inventor： Ren-Chieh Liu , Yi-Hsien Ko , Han-Chi Liu
Abstract: There is provided an optical sensor including a pixel matrix and a readout circuit. The pixel matrix includes multiple pixels arranged in a matrix, and each of the multiple pixels outputs temporal difference pixel data. The readout circuit sequentially reads the pixel matrix using a readout block, and performs the hybrid difference calculation on the temporal difference pixel data of pixels within the readout block. Accordingly, the output of the readout circuit is the data accomplishing temporal difference and spatial difference.
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Patent Agency Ranking
公开(公告)号：US20230314187A1
公开(公告)日：2023-10-05
申请号：US18206584
申请日：2023-06-06
Applicant: PixArt Imaging Inc.
Inventor： KUAN-CHOONG SHIM , GIM-ENG CHEW
IPC: G01D5/347
CPC classification number: G01D5/3473 , G01D5/34707
Abstract: There is provided an optical encoder including a photodiode array and a code disk opposite to each other. The photodiode array includes at least three sets of position photodiodes and two index photodiodes arranged transversally. The two index photodiodes are adjacently arranged at the same side of the at least three sets of position photodiodes. A first set of position photodiodes and a last set of position photodiodes of the at least three sets of position photodiodes are partially covered to alleviate the total harmonic distortion. The rest position photodiodes of the at least three sets of position photodiodes other than the first and last sets of position photodiodes are not covered.
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公开(公告)号：US20230304942A1
公开(公告)日：2023-09-28
申请号：US18202944
申请日：2023-05-28
Applicant: PixArt Imaging Inc.
Inventor： Gue-Zren Wang , Hung-Ching Lai
CPC classification number: G01N21/94 , B25J11/0085 , B25J9/1697 , G01N21/8806
Abstract: The present invention discloses an automatic cleaner for cleaning a surface. The automatic cleaner comprises: a light emitting device, configured to emit first light, wherein a first angle exists between a first emitting direction of the first light and the surface when the automatic cleaner 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 automatic cleaner based on the first optical data. The processing circuit further determines a location of the automatic cleaner on the surface according to navigation optical data.
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公开(公告)号：US20230293041A1
公开(公告)日：2023-09-21
申请号：US18202965
申请日：2023-05-29
Applicant: PixArt Imaging Inc.
Inventor： MING-CHANG LI
CPC classification number: A61B5/0816 , A61B5/721 , A61B5/0077 , A61B2562/0219
Abstract: A respiration rate detection device including a photoplethysmography (PPG) detector, an acceleration detector and a processing unit is provided. The processing unit calculates an acceleration peak frequency in an acceleration frequency spectrum, and takes a PPG acceleration peak frequency in a PPG frequency spectrum corresponding to the acceleration peak frequency as a respiration rate.
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公开(公告)号：US11761830B2
公开(公告)日：2023-09-19
申请号：US17235664
申请日：2021-04-20
Applicant: PixArt Imaging Inc.
Inventor： Yen-Po Chen , Hao-Che Liu , Yen-Chang Chu , Chih-Ming Sun
CPC classification number: G01L1/144 , H05K1/0393 , H05K1/118 , H05K2201/10151
Abstract: There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed. The force sensor is arranged inside a stem of an earphone for detecting the user input.
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公开(公告)号：US11750247B2
公开(公告)日：2023-09-05
申请号：US17584392
申请日：2022-01-26
Applicant: PixArt Imaging Inc.
Inventor： Mu-Tsung Lai , Tung-Ying Chiang , Chien-An Hou , Chia-Pei Chen
CPC classification number: H04B5/0075
Abstract: An inductor circuit includes a receiver inductive circuit, a transmitter inductive circuit, and an antenna inductive circuit which are implemented on a single chip die; the receiver inductive circuit is disposed on a specific ring of a specific plane to form a ring shape; the transmitter inductive circuit and the antenna inductive circuit are disposed inside the specific ring and surrounded by the specific ring of the specific plane; and, a circuit area, occupied by the transmitter inductive circuit, inside the specific ring and on the specific plane, is larger than a circuit area occupied by the receiver inductive circuit and by the antenna inductive circuit.
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