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公开(公告)号：US20230232181A1
公开(公告)日：2023-07-20
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：US20220161748A1
公开(公告)日：2022-05-26
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: 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：US11287897B2
公开(公告)日：2022-03-29
申请号：US16903863
申请日：2020-06-17
Applicant: PixArt Imaging Inc.
Inventor： Ting-Yang Chang , Yen-Min Chang , Nien-Tse Chen
Abstract: The present invention provides a motion detecting system, which includes a light source module, a plurality of image sensors and a control unit. The light source module illuminates at least one object. The image sensors respectively detect the object under the light emitted by the light source module to generate a plurality of detection results. The control unit is coupled to the image sensors, and generates a control command according to the detection results.
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公开(公告)号：US11029764B2
公开(公告)日：2021-06-08
申请号：US16431700
申请日：2019-06-04
Applicant: PixArt Imaging Inc.
Inventor： Chung-Ting Yang , Kai-Ho Tsai , Yen-Min Chang
Abstract: An optical detection device capable of detecting a pointer position of a turntable watch includes an optical receiver and a processor. The optical receiver is disposed inside the turntable watch and adapted to receive an optical reflecting signal. The processor is electrically connected to the optical receiver and adapted to compare a physical quantity of the optical reflecting signal with a predefined condition for determining whether a pointer of the turntable watch is located above the optical receiver. The optical detection device further includes an optical emitter electrically connected to the processor and adapted to emit an optical detecting signal. The optical detecting signal is projected onto the pointer to generate the optical reflecting signal.
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公开(公告)号：US10930698B2
公开(公告)日：2021-02-23
申请号：US16383663
申请日：2019-04-15
Applicant: PixArt Imaging Inc.
Inventor： Kai-Chieh Chuang , Yung-Chung Lee , Yen-Min Chang
IPC: H01L27/146 , H04N5/355 , H04N5/353 , H04N5/378
Abstract: There is provided a structure to improve BSI global shutter efficiency. In a sensor pixel circuit, at least one strong electric field is formed at the position of a floating diffusion region to accordingly have the effect of shielding the floating diffusion region. Or, the semiconductor material from the floating diffusion node toward a light incident direction is removed in the manufacturing process such that a depletion region cannot be formed in this direction. Or, a reflection layer or a photoresist layer is formed in the light incident direction to block the light. In these ways, charges generated by the undesired noises are reduced, and noise charges are difficult to reach the floating diffusion region thereby improving the shutter efficiency.
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Patent Agency Ranking
公开(公告)号：US10863261B1
公开(公告)日：2020-12-08
申请号：US16803371
申请日：2020-02-27
Applicant: PIXART IMAGING INC.
Inventor： Shih-Feng Chen , Yen-Min Chang
Abstract: A wearable device and a portable apparatus are provided. The wearable device includes two wireless earphones each including a speaker, a sound receiver for receiving sound from a peripheral object, and a signal converting circuit that is electrically coupled to the sound receiver and is configured to convert input signal from the sound receiver into a target spectrogram. The two spectrograms from the signal converting circuits have a time/phase difference, and at least one wireless earphone includes a storage unit and a judging circuit that is electrically coupled to the storage unit, the two signal converting circuits, and the two speakers. The judging circuit is configured to compare any target spectrogram with basic spectrograms of the storage unit so as to determine which kind of objects the peripheral object is, and is configured to obtain an instant position of the peripheral object by the time/phase difference.
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公开(公告)号：US10699558B2
公开(公告)日：2020-06-30
申请号：US16716806
申请日：2019-12-17
Applicant: PixArt Imaging Inc.
Inventor： Yen-Min Chang
IPC: G08C17/02 , G06K9/00 , A61B5/1172 , A61B5/024 , A61B5/08 , A61B5/1171 , A61B5/00 , H04B1/3827 , H04W4/80 , H04B17/336
Abstract: A control system including a detection device and a control host is provided. The detection device is configured to detect a biometric characteristic to accordingly identify a user ID, and output an ID signal according to the user ID. The control host is configured to receive the ID signal to accordingly perform an individualized control associated with the user ID.
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公开(公告)号：US10698297B2
公开(公告)日：2020-06-30
申请号：US16404878
申请日：2019-05-07
Applicant: PixArt Imaging Inc.
Inventor： Yen-Min Chang
Abstract: A method capable of performing an automatic focus function upon a specific movable object in a real-time manner, the method being applicable to a photographic apparatus with the automatic focus function, includes: capturing real-time image within a field of view (FOV) of a lens; comparing images of a plurality of image areas of the real-time image with a feature image of the specific movable object to identify an image area corresponding to the feature image of the specific movable object; and, performing automatic focus on the identified image area.
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公开(公告)号：US10538288B2
公开(公告)日：2020-01-21
申请号：US15647249
申请日：2017-07-11
Applicant: PixArt Imaging Inc.
Inventor： Chung-Ting Yang , Yen-Min Chang , Ching-Lin Chung
Abstract: A rotation calculating device comprising: a first rotating device; a first target device; an first optical characteristic acquiring device, configured to acquire optical characteristics for at least one feature of the first target device; and a calculating unit, configured to calculate rotation for the first rotating device based on the optical characteristics of the feature.
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公开(公告)号：US10478128B2
公开(公告)日：2019-11-19
申请号：US15819592
申请日：2017-11-21
Applicant: PixArt Imaging Inc.
Inventor： Ren-Hau Gu , Yen-Min Chang , Ming-Chang Li , Chih-Hsin Lin
Abstract: There is provided a system architecture including a PPG hardware module and a MEMS hardware module. The PPG hardware module processes PPG raw data, which is generally composed of analog signals or digital signals. The PPG hardware module filters the raw data for later digital calculation to, for example, find out frequency signals with higher peak values. The PPG hardware module then outputs the selected frequency signals to an MCU for heart rate calculation. The MEMS hardware module receives MEMS raw data from a motion detector made of MEMS elements. The MEMS raw data represents motion status of a user that could possibly affect the heart rate determination result. The MEMS hardware module filters the raw data for later digital calculation to find out frequency signals with higher peak values caused by motion.
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