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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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Patent Agency Ranking
公开(公告)号：US12206978B2
公开(公告)日：2025-01-21
申请号：US18510725
申请日：2023-11-16
Applicant: PixArt Imaging Inc.
Inventor： Han-Chang Lin , Guo-Zhen Wang , Nien-Tse Chen
Abstract: An electronic system including 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 a 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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公开(公告)号：US12206967B2
公开(公告)日：2025-01-21
申请号：US18376063
申请日：2023-10-03
Applicant: PixArt Imaging Inc.
Inventor： Hung-Yu Lai
Abstract: There is provided an optical engine for a navigation device including a first light source, a second light source, a lens, a barrier structure and an image sensor. The barrier structure has a first space for containing the first light source, a second space for containing the lens and a third space for containing the second light source and the image sensor. The reflected light associated with the first light source propagates to the image sensor via the lens in the second space. The reflected light associated with the second light source propagates to the image sensor via the third space without passing through the lens in the second space.
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公开(公告)号：US20250024179A1
公开(公告)日：2025-01-16
申请号：US18220320
申请日：2023-07-11
Applicant: PIXART IMAGING INC.
Inventor： KUAN TANG , JUI-TE CHIU
IPC: H04N25/78 , H04N25/585
Abstract: An image sensing device and an image sensing method are provided. The image sensing device includes a pixel array, first row-selecting lines, second row-selecting lines and a control circuit. Pixels in the pixel array are arranged to form a plurality of rows and a plurality of columns. A first set of the pixels of each row is electrically connected to the corresponding first row-selecting line, and a second set of the pixels of each row is electrically connected to the corresponding second row-selecting line. The control circuit performs an HFR readout process to obtain an image frame. The rows are divided into a selectable portion and an unselectable portion. In each of HFR readout periods, the first set of an unselected first row and the second set of an unselected second row are selected from the selectable portion of the rows.
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公开(公告)号：US20250024172A1
公开(公告)日：2025-01-16
申请号：US18898062
申请日：2024-09-26
Applicant: PixArt Imaging Inc.
Inventor： REN-CHIEH LIU , YI-CHENG CHIU
IPC: H04N25/767 , H01L27/146
Abstract: There is provided a pixel circuit capable of outputting time difference data or image data, and including a first temporal circuit and a second temporal circuit. The first temporal circuit is used to store detected light energy of a first interval and a second interval as the time difference data. The second temporal circuit is used to store detected light energy of the second interval as the image data. The pixel circuit is used to output a pulse width signal corresponding to the time difference data or the image data in different operating modes.
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公开(公告)号：US20250024015A1
公开(公告)日：2025-01-16
申请号：US18897971
申请日：2024-09-26
Applicant: PixArt Imaging Inc.
Inventor： TSO-SHENG TSAI
Abstract: There is provided a detection device using a SPAD array including a sensor array, multiple counters, a processor and a frame buffer. The sensor array includes a plurality of SPADs respectively generates an avalanche current while receiving a photon. Each counter counts a number of triggering times of the avalanche current of a corresponding SPAD within an exposure interval. The frame buffer is pre-stored with a plurality of gain calibration values corresponding to every SPAD of the sensor array. The processor accesses the gain calibration values to accordingly calibrate a counting image frame outputted by the sensor array to output a calibrated image frame.
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