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公开(公告)号：US11995255B2
公开(公告)日：2024-05-28
申请号：US18208322
申请日：2023-06-12
Applicant: PixArt Imaging Inc.
Inventor： Chun Heap Leow
IPC: G06F3/038 , G06F3/03 , G06F3/0354
CPC classification number: G06F3/038 , G06F3/0304 , G06F3/03543
Abstract: A method for reducing jitter of an optical sensor when in a stationary condition includes: receiving a plurality of raw delta; comparing a movement of the optical sensor with a predetermined threshold; and when the movement is less than the predetermined threshold, entering a dynamic downshift mode, including: storing raw delta into a buffer; when the buffer is not full, outputting the raw delta as reported delta; and when the buffer is full, calculating an average of the total raw delta stored in the buffer, and outputting the average delta as reported delta.
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公开(公告)号：US11994416B2
公开(公告)日：2024-05-28
申请号：US18219729
申请日：2023-07-10
Applicant: PixArt Imaging Inc.
Inventor： Kuan-Choong Shim , Gim-Eng Chew , Priscilla Tze-Wei Goh , Meng-Yee Lim
CPC classification number: G01D5/3473
Abstract: There is provided an optical encoder including an encoding medium, multiple photodiodes and a signal processing circuit. The encoding medium includes an index track. The index track includes a first index pattern and a second index pattern. The multiple photodiodes include a first index photodiode, a second index photodiode and a reference index photodiode for receiving modulated light from the first index pattern and the second index pattern. When the first index photodiode is aligned with the first index pattern and the second index photodiode is aligned with the second index pattern, the signal processing circuit outputs a triggering signal.
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公开(公告)号：US20240168574A1
公开(公告)日：2024-05-23
申请号：US18425528
申请日：2024-01-29
Applicant: PIXART IMAGING INC.
Inventor： Ping-Shun ZEUNG , Kun-Yuan LIN , Chia-Chin CHANG
IPC: G06F3/038 , G06F3/023 , G06F3/0354 , G06F3/14 , G06F9/54 , H04M1/72409
CPC classification number: G06F3/038 , G06F3/023 , G06F3/03543 , G06F3/03547 , G06F3/1423 , G06F9/547 , G06F2203/0384 , H04M1/72409
Abstract: The present disclosure provides a wireless communication system including a first host computer, a communication dongle, a second host computer and an input device. The communication dongle is connected to the first host computer via a USB interface, connected to the second host computer via a Bluetooth interface, and connected to the input device via a wireless interface. The first host computer has first application software for intercepting the operating signal(s) of the input device and transferring, via the communication dongle, to the second host computer to be executed thereby. The first application software also controls the first host computer to ignore the operating signal(s) during the operating signal(s) is being transferred to the second host computer.
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公开(公告)号：US20240156405A1
公开(公告)日：2024-05-16
申请号：US18411033
申请日：2024-01-12
Applicant: PixArt Imaging Inc.
Inventor： Yung-Chang Lin , Jian-Cheng Liao , Chun-Chih Chen , Sen-Huang Huang , Yen-Min Chang
IPC: A61B5/00 , A61B5/0205 , A61B5/145
CPC classification number: A61B5/6843 , A61B5/0205 , A61B5/14542 , A61B5/6813 , A61B5/746 , A61B2560/0223
Abstract: A smart wearable device has a signal calibration function executed by a signal calibration method and applied to a finger, a limb and/or a neck of a user. The smart wearable device includes at least one physiological signal detector, at least one pressure detector and an operation processor. The at least one physiological signal detector is adapted to abut against a detection area of the user for detecting a physiological signal. The at least one pressure detector is disposed around the at least one physiological signal detector and adapted to detect a pressure value of the detection area. The operation processor is electrically connected with the at least one physiological signal detector and the at least one pressure detector. The operation processor is adapted to optimize the physiological signal when the pressure value exceeds a predefined pressure threshold.
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公开(公告)号：US11983956B2
公开(公告)日：2024-05-14
申请号：US18112510
申请日：2023-02-22
Applicant: PixArt Imaging Inc.
Inventor： Nien-Tse Chen , Yi-Hsien Ko , Yen-Min Chang
IPC: G06K9/00 , A61B5/00 , A61B5/01 , G01J5/00 , G01J5/02 , G06F18/22 , G06F18/25 , G06F21/32 , G06V10/143 , G06V10/74 , G06V10/80 , G06V40/10 , G06V40/16 , G06V40/20 , G06V40/40 , G16H40/63
CPC classification number: G06V40/161 , A61B5/0008 , A61B5/01 , A61B5/742 , A61B5/746 , G01J5/0025 , G01J5/026 , G06F18/22 , G06F18/251 , G06F21/32 , G06V10/143 , G06V10/761 , G06V10/803 , G06V40/113 , G06V40/168 , G06V40/172 , G06V40/20 , G06V40/28 , G06V40/45 , G16H40/63 , G01J2005/0077 , G06V40/117 , G06V40/16
Abstract: There is provided a recognition system adaptable to a portable device or a wearable device. The recognition system senses a body heat using a thermal sensor, and performs functions such as the living body recognition, image denoising and body temperature prompting according to detected results.
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Patent Agency Ranking
公开(公告)号：US11979738B2
公开(公告)日：2024-05-07
申请号：US18127671
申请日：2023-03-29
Applicant: PixArt Imaging Inc.
Inventor： Shih-Feng Chen , Yen-Min Chang
CPC classification number: H04S7/304 , G06F3/012 , G06F3/167 , H04W4/024 , H04W4/026 , H04W4/029 , H04W4/80 , H04W12/50
Abstract: A method of wireless communication locator station to be disposed at specific location includes: detecting rotation angle information of client-based portable device, carried or worn by user, according to specific wireless communication standard between wireless communication locator station and client-based portable device when client-based portable device is within signal range of wireless communication locator station; generating head pose direction estimation according to calculated rotation angle information; and when head pose direction estimation indicates that a user turns face towards wireless communication locator station, sending packet signal from wireless communication locator station to server-based portable device, successfully paired with and security-connected with client-based portable device, so that server-based portable device can transfer packet signal to client-based portable device after receiving packet signal.
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公开(公告)号：US11976990B2
公开(公告)日：2024-05-07
申请号：US17557002
申请日：2021-12-20
Applicant: PixArt Imaging Inc.
Inventor： Ming-Hung Tsai , Chun-Yang Chen , Yen-Po Chen
CPC classification number: G01L1/26 , G01L25/00 , G06F3/0414 , G06F3/0418
Abstract: A force sensing method, applied to a force sensing system comprising a plurality of force sensors and a touch sensing surface, comprising: (a) determining a first location of a first object on the touch sensing surface; (b) defining a first force sensing region according to the first location; and (c) computing a first system sensing force which the first object causes to the touch sensing surface according to the first location, and according to at least one sensor sensing force of a first part of the force sensors corresponding to the first force sensing region. The present invention also discloses a force sensing system which uses the above-mentioned force sensing method, and an efficient force sensor calibration method. Noises can be reduced and power consumption can be decreased, since only sensor sensing forces of force sensors near the object are used for computing the system sensing force.
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58.发明授权公开(公告)号：US11976942B2
公开(公告)日：2024-05-07
申请号：US17881586
申请日：2022-08-04
Applicant: PixArt Imaging Inc.
Inventor： Guo-Zhen Wang
CPC classification number: G01C3/02 , A47L9/009 , A47L9/2805 , A47L9/2852 , A47L11/4002 , A47L11/4011 , A47L11/4061 , A47L11/4066 , G01C21/20 , G01N21/94 , A47L2201/04
Abstract: An auto clean machine, comprising: an optical sensor; a light source, configured to generate a first light pattern; and a processing circuit, configured to determine which light pattern is the first light pattern if the optical sensor senses more than one light pattern. The present invention also discloses an optical navigation device with a first optical sensor and a second optical sensor.
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公开(公告)号：US20240126092A1
公开(公告)日：2024-04-18
申请号：US17966891
申请日：2022-10-17
Applicant: PIXART IMAGING INC.
Inventor： Sai-Mun LEE , Hun-Kwang LEE , Yee-Loong CHIN , Chee-Pin T'NG
CPC classification number: G02B27/0955 , G01S7/4815
Abstract: There is provided an optical navigation device including a substrate, a light sensor, a first light source, a second light source and a light directing member. The light sensor is arranged on the substrate and has a field of view (FOV) perpendicular to the substrate. The emission light of the first light source forms a first illumination light beam after passing the light directing member. The emission light of the second light source forms a second illumination light beam after passing the light directing member. A first crossover region of the first illumination light beam with the FOV is closer to the substrate than a second crossover region of the second illumination light beam with the FOV.
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公开(公告)号：US11953400B2
公开(公告)日：2024-04-09
申请号：US18142055
申请日：2023-05-02
Applicant: PIXART IMAGING INC.
Inventor： Che-Chia Hsu , Yu-Han Chen , Chi-Chieh Liao
CPC classification number: G01L9/12 , G01L9/0005
Abstract: A pressure sensing unit is provided. The pressure sensing unit includes a membrane and a pressure sensing pad group. The membrane has a first surface and a second surface. The pressure sensing pad group includes a first pressure sensing pad, a second pressure sensing pad, and a ground pad that are spaced apart from one another. The ground pad and one among the first pressure sensing pad and the second pressure sensing pad are located at the first surface of the membrane, another one among the first pressure sensing pad and the second pressure sensing pad is located at the second surface of the membrane, and an orthographic projection of the ground pad projected onto a reference plane is located between orthographic projections of the first pressure sensing pad and the second pressure sensing pad that are projected onto the reference plane. Therefore, a signal-to-noise ratio can be increased and an erroneous detection can be prevented.
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