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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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Patent Agency Ranking
96.发明申请公开(公告)号：US20250013318A1
公开(公告)日：2025-01-09
申请号：US18890742
申请日：2024-09-19
Applicant: PixArt Imaging Inc.
Inventor： Tsung-Fa Wang , Yen-Min Chang , Shih-Wei Kuo
IPC: G06F3/03
Abstract: A method for configuring an optical input device is provided. The optical input device includes a movable unit and a sensing device. The movable unit is arranged to move within a predetermined range. The sensing device is arranged to detect a position within the predetermined range at which the movable unit is located. The method includes: adjusting an optical setting of the sensing device to obtain an optimal dynamic range of the sensing device; and configuring a valid input threshold for the optical input device based on the optimal dynamic range.
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公开(公告)号：US12183070B2
公开(公告)日：2024-12-31
申请号：US18496946
申请日：2023-10-30
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
IPC: G06K9/00 , G06V10/143 , G06V20/10
Abstract: An object determining system, comprising: a processing circuit; a first stage object sensor, for generating a first stage object sensing result of an object; and a second stage object sensor, for generating a second stage object sensing result of the object if the processing circuit determines the object exists in a predetermined range based on the first stage object sensing result, wherein the processing circuit further determines an object kind of the object based on the second stage object sensing result; a line light source; and an area light source. The first stage object sensor generates the first stage object sensing result based on the line light. The second stage object sensor generates the second object detecting result based on the plane light. The first stage object sensor is a depth sensor or a thermal sensor. The second stage object sensor is an image sensor or a thermal sensor.
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公开(公告)号：US20240426639A1
公开(公告)日：2024-12-26
申请号：US18824949
申请日：2024-09-05
Applicant: PixArt Imaging Inc.
Inventor： CHUNG-MIN THOR , Kuan-Choong Shim
IPC: G01D5/347
Abstract: There is provided an optical encoder including an encoding medium and a substrate. The encoding medium has a relative movement with respect to the substrate in a predetermined direction. The substrate includes an index photodiode and two control photodiodes. The index photodiode is arranged between the two control photodiodes along the predetermined direction. The output signals of the two control photodiodes are for controlling ON/OFF of gain regulation on an output signal of the index photodiode so as to turn on the gain regulation within an interval during which the index photodiode does not generate an index pulse but to turn off the gain regulation within an interval during which the index photodiode generates the index pulse.
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公开(公告)号：US12175047B2
公开(公告)日：2024-12-24
申请号：US17897722
申请日：2022-08-29
Applicant: PIXART IMAGING INC.
Inventor： Che-Chia Hsu , Chi-Chieh Liao , Yu-Han Chen
IPC: G06F3/044 , G06F3/041 , H01L25/075
Abstract: A capacitive touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes and a plurality of light-emitting diode (LED) dies. The plurality of sensing electrodes and the plurality of driving electrodes form a touch sensing region of the capacitive touchpad, and the touch sensing region is divided into a plurality of sensing units having same areas. Each of the LED dies is arranged in two adjacent ones of the plurality of sensing units, and a position of each of the LED dies corresponds to one of the plurality of driving electrodes, and the LED dies are electrically isolated from the plurality of sensing electrodes and the plurality of driving electrodes.
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公开(公告)号：US12164028B2
公开(公告)日：2024-12-10
申请号：US18418767
申请日：2024-01-22
Applicant: PIXART IMAGING INC.
Inventor： Guo-Zhen Wang
Abstract: An optical sensing system is provided. The optical sensing system includes a first light source, a second light source, a light sensor, and a processor. The processor is configured to: control the first light source to scan a horizontal detection area; control the light sensor to capture a first frame by receiving first reflective lights from the horizontal detection area; obtain a first reflection pattern, and analyze the first reflection pattern to determine whether an object is within the first portion; if so, control the second light source to scan a first vertical detection area; control the light sensor to capture a second frame from the first vertical detection area; process the second frame to obtain a second reflection pattern, and analyze the second reflection pattern to determine whether the object is detected by a misjudgment.
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