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公开(公告)号：US20210368113A1
公开(公告)日：2021-11-25
申请号：US16879655
申请日：2020-05-20
Applicant: PixArt Imaging Incorporation
Inventor： Wooi-Kip Lim , Shan-Chong Tan
IPC: H04N5/355 , H01L27/146 , H04N5/378
Abstract: An image sensor uses a pixel circuit which includes a BJT phototransistor having multiple selectable beta values. The BJT is one semiconductor device includes: a substrate having a first conductivity type; a first well having the first conductivity type; a collector electrode having the first conductivity type in the first well; a second well having a first concentration of a second conductivity type; a first emitter electrode having the first conductivity type in the second well; a base electrode having the second conductivity type in the second well; a third well having a second concentration of the second conductivity type, wherein the second concentration is different from the first concentration; and a second emitter electrode having the first conductivity type in the third well.
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公开(公告)号：US20210208252A1
公开(公告)日：2021-07-08
申请号：US17188610
申请日：2021-03-01
Applicant: PixArt Imaging Incorporation
Inventor： Nientse Chen
Abstract: A proximity sensor includes: a transmitter unit for transmitting a light signal; a receiver unit for receiving the light signal reflected by an object to determine a proximity status of the object; and a housing defining a first enclosed accommodation space for accommodating the receiver unit, wherein the portion of the housing which defines the first enclosed accommodation space has a sealed light passage made of a light-transmissible material such that the receiver unit is capable of receiving the light signal reflected by the object through the light passage. The housing can further include a second enclosed accommodation space for accommodating the transmitter unit.
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公开(公告)号：US10832042B2
公开(公告)日：2020-11-10
申请号：US16444006
申请日：2019-06-18
Applicant: PixArt Imaging Incorporation
Inventor： Ren-Hau Gu , Chih-Yen Wu
Abstract: The present invention discloses an identification system which includes an image sensor, a storage unit and a comparing unit. The image sensor captures a plurality of images of the motion trajectory generated by a user at different timings. The storage unit has stored motion vector information of a group of users including or not including the user generating the motion trajectory. The comparing unit compares the plurality of images with the motion vector information to identify the user. The present invention also provides an identification method.
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公开(公告)号：US20200183500A1
公开(公告)日：2020-06-11
申请号：US16790783
申请日：2020-02-14
Applicant: PixArt Imaging Incorporation, R.O.C.
Inventor： Yu-Hao Huang , Yi-Fang Lee , Ming-Tsan Kao
IPC: G06F3/01 , G06F3/0484 , G06F3/03
Abstract: An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.
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公开(公告)号：US20190323896A1
公开(公告)日：2019-10-24
申请号：US16503517
申请日：2019-07-04
Applicant: PixArt Imaging Incorporation
Inventor： Ming-Han Tsai , Shin-Lin Wang
Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.
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Patent Agency Ranking
公开(公告)号：US10358339B2
公开(公告)日：2019-07-23
申请号：US15913654
申请日：2018-03-06
Applicant: PixArt Imaging Incorporation
Inventor： Ming-Han Tsai , Yu-Chia Liu , Wei-Leun Fang
IPC: B81B3/00
Abstract: The invention provides a micro-electro-mechanical device which is manufactured by a CMOS manufacturing process. The micro-electro-mechanical device includes a stationary unit, a movable unit, and a connecting member. The stationary unit includes a first capacitive sensing region and a fixed structure region. The movable unit includes a second capacitive sensing region and a proof mass, wherein the first capacitive sensing region and the second capacitive sensing region form a capacitor, and the proof mass region consists of a single material. The connecting member is for connecting the movable unit in a way to allow a relative movement of the movable unit with respect to the stationary unit.
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公开(公告)号：US20190086268A1
公开(公告)日：2019-03-21
申请号：US16194385
申请日：2018-11-18
Applicant: PixArt Imaging Incorporation
Inventor： Ming-Han Tsai , Shin-Lin Wang
Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. Ahot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.
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公开(公告)号：US20180202864A1
公开(公告)日：2018-07-19
申请号：US15917606
申请日：2018-03-10
Applicant: PixArt Imaging Incorporation
Inventor： Ming-Han Tsai , Shin-Lin Wang
Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.
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公开(公告)号：US20180136740A1
公开(公告)日：2018-05-17
申请号：US15856042
申请日：2017-12-27
Applicant: PixArt Imaging Incorporation
Inventor： Chuan-Hsin Lee
CPC classification number: G06F3/0304 , G06K9/4661
Abstract: The invention provides an ambient light sensing device which receives at least one visible light image sensed by an image sensor. The ambient light sensing device includes an image sampling unit and an analyzing unit. The image sampling unit divides the visible light image into plural image blocks, extracts at least one sample data in each image block, and generates a comparison data according to a difference between the sample data extracted at different time points. The analyzing unit analyzes the comparison data and generates an output analysis signal accordingly.
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公开(公告)号：US09945726B2
公开(公告)日：2018-04-17
申请号：US15249214
申请日：2016-08-26
Applicant: PixArt Imaging Incorporation
Inventor： Ming-Han Tsai , Shin-Lin Wang
Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.
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