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公开(公告)号：US20210349560A1
公开(公告)日：2021-11-11
申请号：US16867547
申请日：2020-05-05
Applicant: PixArt Imaging Inc.
Inventor： Wei-Chung Wang
Abstract: An optical detection device is applied to an optical finger navigation apparatus and suitable for a variety of appearance demands in order to simplify product qualification procedure. The optical detection device includes a substrate, a housing, an optical sensor and a cover. The housing is disposed on the substrate and comprising a first aperture. The optical sensor is disposed on the substrate and adapted to receive an optical signal through the first aperture. The cover is disposed on the housing to cover the first aperture. The cover has a first surface and a second surface opposite to each other. The first surface with a contour matched with a shape of the housing is attached to the housing, and the second surface with a contour manufactured for a predefined appearance demand does not affect conjunction between the housing and the cover.
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22.发明申请公开(公告)号：US20200182672A1
公开(公告)日：2020-06-11
申请号：US16787051
申请日：2020-02-11
Applicant: PixArt Imaging Inc.
Inventor： Hsin-Chia Chen , Sen-Huang Huang , Wei-Chung Wang , Chao-Chien Huang , Ting-Yang Chang , Chun-Wei Chen
Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.
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公开(公告)号：US20180372871A1
公开(公告)日：2018-12-27
申请号：US15632390
申请日：2017-06-25
Applicant: PixArt Imaging Inc.
Inventor： Wei-Chung Wang , Hui-Hsuan Chen
CPC classification number: G01S17/50 , G01S7/4802 , G01S7/4815 , G01S7/4816 , G01S17/46 , G01S17/88 , G06F3/014 , G06F3/017
Abstract: An object state determining apparatus comprising: a first light source, configured to generate first light in a first direction, wherein first reflected light is generated while the first light is emitted to an object; a second light source, configured to generate second light in a second direction, wherein second reflected light is generated while the second light is emitted to the object; at least one light sensor, configured to sense a first light amount of the first reflected light and a second light amount of the second reflected light; and a determining unit, configured to determine a state of the object based on the first light amount and the second light amount. The object state determining apparatus can be easily fixed to an object to be detected and can efficiently detect the state of the object.
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公开(公告)号：US09279823B2
公开(公告)日：2016-03-08
申请号：US13941862
申请日：2013-07-15
Applicant: PixArt Imaging Inc
Inventor： Wei-Chung Wang , Hui-Hsuan Chen
IPC: G01B9/02 , G01P15/093 , G01P15/18
CPC classification number: G01P15/093 , G01P15/18
Abstract: There is provided an optical accelerometer including a first substrate, a second substrate, a spacer and a processing unit. The first substrate includes a frame, a movable member and at least one elastic member. Periodic slots are formed on the movable member along at least one direction to be served as a diffraction grating. The elastic member is connected between the frame and the movable member. The second substrate includes at least one sensing unit configured to detect a diffraction pattern formed by the diffraction grating. The spacer is disposed between the first substrate and the second substrate to define a predetermined height. The processing unit is coupled to the sensing unit and configured to calculate a 3D acceleration according to the diffraction pattern.
Abstract translation: 提供了一种包括第一基板，第二基板，间隔件和处理单元的光学加速度计。 第一基板包括框架，可动构件和至少一个弹性构件。 周期性槽沿着至少一个方向形成在可动构件上以用作衍射光栅。 弹性构件连接在框架和可动构件之间。 第二基板包括被配置为检测由衍射光栅形成的衍射图案的至少一个感测单元。 间隔件设置在第一基板和第二基板之间以限定预定高度。 处理单元耦合到感测单元并且被配置为根据衍射图来计算3D加速度。
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25.发明申请Connector of connecting light sensor and substrate and method of fabricating light sensor 有权连接光传感器和基板的连接器以及制造光传感器的方法公开(公告)号：US20150064833A1
公开(公告)日：2015-03-05
申请号：US14534187
申请日：2014-11-06
Applicant: PixArt Imaging Inc.
Inventor： Wei-Chung Wang
IPC: H01L31/0203 , H01L31/0232 , G01J1/04 , G01J1/42 , G01J1/02
CPC classification number: H01L31/0203 , G01J1/0295 , G01J1/0411 , G01J1/42 , G06F3/0428 , H01L31/02325 , H01L2224/16225 , H01L2224/32225 , H01L2224/48091 , H01L2224/73204 , H01L2224/92125 , H01L2224/92247 , H01L2924/00011 , H01L2924/00014 , H01L2924/00 , H01L2224/0401
Abstract: A connector of connecting a light sensor and a substrate is utilized for rotating the light sensor so that the light-receiving direction of the light sensor is parallel with the substrate. When the connector is utilized in an optical touch system, the light sensor can be disposed on the substrate of the optical touch system by means of general manufacturing facilities of flat display panels. Meanwhile, the light-receiving direction of the light sensor is parallel with the substrate of the optical touch system.
Abstract translation: 连接光传感器和基板的连接器用于旋转光传感器，使得光传感器的光接收方向与基板平行。 当在光学触摸系统中使用连接器时，光传感器可以通过平板显示面板的一般制造设备设置在光学触摸系统的基板上。 同时，光传感器的光接收方向与光学触摸系统的基板平行。
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Patent Agency Ranking
公开(公告)号：US11994871B2
公开(公告)日：2024-05-28
申请号：US18140630
申请日：2023-04-28
Applicant: PixArt Imaging Inc.
Inventor： Shih-Chin Lin , Wei-Chung Wang , Guo-Zhen Wang
CPC classification number: G05D1/0248 , A47L11/4011 , B25J11/0085 , G05D1/0242 , G06T7/521 , A47L2201/06
Abstract: There is provided a moving robot including a first light source module and a second light source module respectively project a first light section and a second light section, which are vertical light sections, in front of a moving direction, wherein the first light section and the second light section cross with each other at a predetermined distance in front of the moving robot so as to eliminate a detection dead zone between the first light source module and the second light source module in front of the moving robot to avoid collision with an object during operation.
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公开(公告)号：US11669103B2
公开(公告)日：2023-06-06
申请号：US17227732
申请日：2021-04-12
Applicant: PIXART IMAGING INC.
Inventor： Kai-Shun Chen , Wei-Chung Wang
IPC: G05D1/02 , G06V10/141 , G06V20/58
CPC classification number: G05D1/0248 , G05D1/0214 , G05D1/0238 , G05D1/0246 , G06V10/141 , G06V20/58 , G05D2201/0203 , G05D2201/0207
Abstract: The disclosure is related to a system for obstacle detection adapted to a self-guiding machine. The system includes a controller for driving the system, a light emitter, and a light sensor. The light emitter and the light sensor are set apart at a distance. When the light emitter emits an indicator light being a vertical linear light projected onto a path the self-guiding machine travels toward, the light sensor senses the indicator light. The vertical linear light is segmented into a first segment projected to a ground and a second segment projected to a floating obstacle when the self-guiding machine approaches the floating obstacle with a height from the ground and the indicator light is projected to the floating obstacle, in which the second segment of the light sensed by the light sensor is determined as the floating obstacle in front of the self-guiding machine.
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公开(公告)号：US20200149988A1
公开(公告)日：2020-05-14
申请号：US16746967
申请日：2020-01-20
Applicant: PixArt Imaging Inc.
Inventor： Yu-Han Chen , Chih-Wei Huang , Chi-Chieh Liao , Wei-Chung Wang
Abstract: A pressure measuring method, applied to a pressure measuring apparatus, comprising: measuring a first pressure sensing value when the pressure measuring apparatus operates at a first scan frequency and receives a first pressure; and measuring a second pressure sensing value when the pressure measuring apparatus operates a second scan frequency and receives the first pressure. The first pressure sensing value and the second pressure sensing value are different, and a change between the first pressure sensing value and the second pressure sensing value is according to a change between the first scan frequency and the second scan frequency. The first scan frequency and the second scan frequency are different. The pressure measuring method can further comprise a calibrating mechanism to compensate the sensed pressure. By this way, the pressure sensing value can be calibrated, to solve the issue that the pressure sensing values are affected by scan frequencies.
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公开(公告)号：US20190302828A1
公开(公告)日：2019-10-03
申请号：US16445165
申请日：2019-06-18
Applicant: PixArt Imaging Inc.
Inventor： Wei-Chung Wang , Hsin-Chia Chen , Hui-Hsuan Chen , Chao-Chien Huang , Chu-Hung Nien
Abstract: A joystick has a related control method to provide displayed object control function. The joystick includes a body, an image sensor and a processor. The body has a deformable bottom surface whereon a pattern is disposed. The image sensor is disposed under the body and adapted to capture a plurality of frames about the pattern. The processor is electrically connected with the image sensor and adapted to generate a displayed object control signal according to pattern variation within the plurality of frames.
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公开(公告)号：US20170292888A1
公开(公告)日：2017-10-12
申请号：US15482815
申请日：2017-04-09
Applicant: PixArt Imaging Inc.
Inventor： Yu-Han Chen , Chih-Wei Huang , Chi-Chieh Liao , Wei-Chung Wang
CPC classification number: G01L25/00 , G01L1/142 , G06F3/0418 , G06F3/044
Abstract: A pressure measuring method, applied to a pressure measuring apparatus, comprising: measuring a first pressure sensing value of the pressure measuring apparatus, which corresponds to a first pressure in a test mode; measuring a second pressure sensing value of the pressure measuring apparatus, which corresponds to a second pressure in the test mode; generating a first corresponding function according to the first pressure, the second pressure, the first pressure sensing value and the second pressure sensing value; sensing a third pressure sensing value via the pressure measuring apparatus in a normal mode; and generating a third pressure according to the third pressure sensing value via the first corresponding function; wherein the pressure measuring apparatus operates at a first scan frequency. By this way, the pressure sensing value can be calibrated, to solve the issue that the pressure sensing values are affected by scan frequencies.
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