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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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Patent Agency Ranking
公开(公告)号：US20250054181A1
公开(公告)日：2025-02-13
申请号：US18928227
申请日：2024-10-28
Applicant: PixArt Imaging Inc.
Inventor： Ming Shun Manson Fei , Sen-Huang Huang , Chi-Chieh Liao
Abstract: An object position determining system comprising: at least one light source, configured to emit light; at least one optical sensor, configured to sense optical data generated based on reflected light of the light; and a processing circuit, configured to compute distance information between the optical sensor and an object which generates the reflected light. The processing circuit further determines a position of the object according to the distance information.
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公开(公告)号：US12222246B2
公开(公告)日：2025-02-11
申请号：US18330371
申请日：2023-06-07
Applicant: PIXART IMAGING INC.
Inventor： Chih-Ming Sun , Ming-Han Tsai , Cheng-Nan Tsai
Abstract: A wearable device includes a case and a temperature sensing device. The case has a first opening. The temperature sensing device is disposed inside the case of the wearable device. The temperature sensing device includes a first substrate, a sensor chip, and a metal shielding structure. The sensor chip is disposed on the first substrate. The metal shielding structure surrounds the sensor chip, and has a second opening. The sensor chip faces towards the first opening and the second opening.
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公开(公告)号：US12210690B1
公开(公告)日：2025-01-28
申请号：US18368023
申请日：2023-09-14
Applicant: PixArt Imaging Inc.
Inventor： Tsung-Fa Wang
IPC: G06F3/03 , G06F3/0354 , G06F3/038
Abstract: A method of an optical navigation device, to be coupled to a computer device through a specific communication interface, includes: providing an optical sensor to sense and generate an optical navigation position related signal in response to a movement of the optical navigation device; detecting a moving speed of the movement of the optical navigation device; and, dynamically adjusting a transmission report rate of the optical navigation device, which is used to periodically transmit the optical navigation position related signal to the computer device, based on the detect moving speed.
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公开(公告)号：US12208527B2
公开(公告)日：2025-01-28
申请号：US18382049
申请日：2023-10-19
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
Abstract: An air ejection device, configured to eject air; a distance detecting circuit, configured to detect distances between an electronic device comprising the object determining system and at least one location of an object when the air ejection device ejects air to the object; and a determining circuit, configured to determine whether the object is a rigidity type object or a soft type object according to the variations.
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公开(公告)号：US12207024B2
公开(公告)日：2025-01-21
申请号：US18111610
申请日：2023-02-20
Applicant: PixArt Imaging Inc.
Inventor： Chih-Huan Wu , Wen-Han Yao
IPC: H04N7/18 , G06T7/246 , G08B13/196
Abstract: A method of an image sensor circuit includes: providing an event camera comprising at least one pixel unit; using the event camera to sense at least one current pixel value of the at least one pixel unit to detect whether at least one pixel value changes; when the at least one pixel value changes, using the event camera to trigger the digital processing circuit when the digital processing circuit is in a power saving mode and transmit information of the at least one pixel value to the digital processing circuit.
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