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公开(公告)号：US20250155134A1
公开(公告)日：2025-05-15
申请号：US18986017
申请日：2024-12-18
Applicant: PixArt Imaging Inc.
Inventor： CHIH-MING SUN , Ming-Han Tsai , Chiung-Wen Lin , Po-wei Yu , Wei-Ming Wang , Sen-Huang Huang
Abstract: There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.
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公开(公告)号：US20250148236A1
公开(公告)日：2025-05-08
申请号：US18823721
申请日：2024-09-04
Applicant: PixArt Imaging Inc.
Inventor： Shu-Sian Yang , Tsung-Hsueh Lee , Tzu-Yu Chen
Abstract: An optical decoding device, comprising: an image sensor, configured to sense first sensing images and second sensing images; a processing circuit, configured to determine a relative movement between the optical decoding device and an object according to the first sensing images; and a decoding device, configured to decode the second sensing images in a first mode to generate a decoding result and does not decode the second sensing images in a second mode. The decoding device switches between the first mode and the second mode according to the relative movement, thus can save power. A barcode, a color code which can be provided on a curved surface and an invisible code are also disclosed. An electrical cigarette lighter using the optical decoding device to provide heat is also disclosed.
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公开(公告)号：US12293520B2
公开(公告)日：2025-05-06
申请号：US17868803
申请日：2022-07-20
Applicant: PixArt Imaging Inc.
Inventor： Yuan-Hsin Liao
Abstract: A portrait image processing method, applying to a portrait image processing device, comprising: (a) acquiring a BVP (Blood Volume Pulse) signal of a user; (b) acquiring blood flow distribution of a specific portion of a user; (c) capturing an image of a specific portion of the user; and (d) adjusting the image of the specific portion according to the BVP signal and the blood flow distribution. A portrait image processing device, which comprises a camera and a processing circuit, is also disclosed. The processing circuit can acquire BVP signals from an image captured by the camera or from a PPG sensor.
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公开(公告)号：US20250141439A1
公开(公告)日：2025-05-01
申请号：US18495774
申请日：2023-10-27
Applicant: PixArt Imaging Inc.
Inventor： Yueh-Lin Chung , Tso-Sheng Tsai
Abstract: A method of a signal transmission device includes: providing at least one delay line circuit having a plurality of first delay units connected in series; providing a control voltage as a supply voltage provided for a first delay unit of the at least one delay line circuit; and adjusting the control voltage to maintain a delay amount of the first delay unit at a specific delay amount when a variation of the delay amount of the first delay unit occurs.
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公开(公告)号：US12285876B2
公开(公告)日：2025-04-29
申请号：US17882648
申请日：2022-08-08
Applicant: PixArt Imaging Inc.
Inventor： Chi-Chieh Liao , Guo-Zhen Wang
Abstract: There is provided a cleaning robot including a light source module and an image sensor. The light source module projects a horizontal line pattern toward a moving direction. The image sensor captures, toward the moving direction, an image of the horizontal line pattern. The light source module is arranged below the image sensor so as to eliminate the interference from second reflection.
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Patent Agency Ranking
公开(公告)号：US12279054B2
公开(公告)日：2025-04-15
申请号：US18517011
申请日：2023-11-22
Applicant: PixArt Imaging Inc.
Inventor： Ren-Chieh Liu , Chao-Chi Lee
IPC: H04N25/531 , H04N25/771 , H04N25/772
Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes two pixel arrays each having multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by a time ratio of the line time difference and the frame period. The TDI sensor doubles a number of times of integrating pixel data corresponding to the same position of a scene by arranging two separately operated pixel arrays.
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公开(公告)号：US20250116608A1
公开(公告)日：2025-04-10
申请号：US18377843
申请日：2023-10-09
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG
IPC: G01N21/88
Abstract: An optical sensing system and an optical sensing method are provided. The system includes a bright-field light source, a dark-field light source, an optical detecting circuit, and a processing circuit. The processing circuit performs a floor type detection process, including: controlling the dark-field light source to provide dark-field illumination; receiving, by the optical detecting circuit, scattered lights of the dark-field light source; executing a dark-field computation process to obtain a first optical characteristic, and determining whether the first optical characteristic meets a first surface condition; in the negative, determining that a floor is a first type; in the affirmative, controlling the bright-field light source to provide bright-field illumination; receiving, by the optical detecting circuit, scattered lights of the bright-field light source; executing a bright-field computation process to obtain a second optical characteristic, and determining whether the second optical characteristic meets a second surface condition.
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公开(公告)号：US12269405B2
公开(公告)日：2025-04-08
申请号：US17105620
申请日：2020-11-26
Applicant: PixArt Imaging Inc.
Inventor： Han-Lin Chiang , Shih-Feng Chen , Yen-Min Chang , Ning Shyu , Chih-Wei Huang
IPC: G06F11/30 , B60N2/00 , B60R21/015 , G01G19/44
Abstract: A multiple detection system is applied to a vehicle and includes a contact-type detection module adapted to generate a contact-type detection datum, a contactless-type detection module adapted to generate a contactless-type detection datum, and an operation processor electrically connected with the contact-type detection module and the contactless-type detection module in a wire manner or in a wireless manner. The operation processor sets at least one of the contact-type detection datum and the contactless-type detection datum according to an environmental status of the vehicle to be a main detection result of the multiple detection system, and further sets the other detection datum to be an auxiliary detection result of the multiple detection system, for acquiring a passenger feature inside the vehicle.
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公开(公告)号：US20250098968A1
公开(公告)日：2025-03-27
申请号：US18473429
申请日：2023-09-25
Applicant: PIXART IMAGING INC.
Inventor： Ren-Hau GU , Hsiu-Ling YEH
Abstract: There is provided a physiological detection device for detecting physiological signals via a skin surface and including a first light source, a second light source, a first light sensor, a second light sensor and a processor. The first light source emits light via an optical element that causes the first light sensor and the second light sensor to receive different percentages of light energy of the first light source. The first light sensor and the second light sensor receive the same percentage of light energy of the second light source. The processor adjusts emission intensity of the first light source according to an intensity difference between two light energies received by the first and second light sensors as well as an intensity variation of light energy received by the first light sensor to alleviate motion artifacts in the physiological signals.
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公开(公告)号：US12257514B2
公开(公告)日：2025-03-25
申请号：US18604581
申请日：2024-03-14
Applicant: PIXART IMAGING INC.
Inventor： Chung-Ting Yang , Yen-Min Chang , Yen-Chang Wang
Abstract: A game board device is provided for carrying and identifying game pieces that are divided into different piece types. The game board device includes a board, a plurality of optically identifying modules, and a processing module electrically coupled to the optically identifying modules. The optically identifying modules respectively correspond in position to detection regions of the board. Each of the optically identifying modules includes a light emitter that can emit light toward the corresponding detection region and a light receiver that can receive light reflected by the corresponding detection region. When any one of the detection regions is in an unoccupied mode, the corresponding optically identifying module can emit an unoccupied signal. When any one of the detection regions is in an occupied mode, the corresponding optically identifying module enables an identification signal that corresponds to the piece type of the corresponding game piece to be emitted therefrom.
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