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公开(公告)号：US11750941B1
公开(公告)日：2023-09-05
申请号：US17737190
申请日：2022-05-05
Applicant: PixArt Imaging Incorporation
Inventor： Wooi-Kip Lim , Shan-Chong Tan
Abstract: An imaging circuit includes plural pixel circuits which are arranged in a pixel array. Each of the plural pixel circuits includes an image sensing device which is configured to sense a normal imaging light shedding on the imaging circuit with a predetermined frame rate. At least a portion of the plural pixel circuits are first type pixel circuits. Each of the first type pixel circuit further includes a flicker sensing device. Plural flicker sensing devices in the pixel array are coupled in parallel to sense a flickering light shedding on the imaging circuit to generate a flicker indicating signal.
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公开(公告)号：US20220326785A1
公开(公告)日：2022-10-13
申请号：US17852283
申请日：2022-06-28
Applicant: PixArt Imaging Incorporation
Inventor： Chuan-Hsin Lee
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：US20220326784A1
公开(公告)日：2022-10-13
申请号：US17851087
申请日：2022-06-28
Applicant: PixArt Imaging Incorporation
Inventor： Yu-Hao Huang , Yi-Fang Lee , Ming-Tsan Kao , Nien-Tse Chen
IPC: G06F3/01 , G06F3/03 , G06F3/00 , G06F3/04842 , G06F3/0482 , G06F3/0488 , G06F3/023 , G06T19/00 , G06F3/0485 , G06F3/04815 , G06V40/20 , G06F16/44 , G06F3/042 , G06T7/20
Abstract: The present invention discloses a method for outputting a command by detecting a movement of an object, which includes the following steps. First, an image capturing device captures images generated by the movement of the object at different timings by. Next, a motion trajectory is calculated according to the plurality of images. Further next, a corresponding command is outputted according to the motion trajectory. The present invention also provides a system which employs the above-mentioned method.
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公开(公告)号：US11290666B2
公开(公告)日：2022-03-29
申请号：US16879655
申请日：2020-05-20
Applicant: PixArt Imaging Incorporation
Inventor： Wooi-Kip Lim , Shan-Chong Tan
IPC: H01L27/146 , H04N5/355 , 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：US11153524B1
公开(公告)日：2021-10-19
申请号：US17028945
申请日：2020-09-22
Applicant: PixArt Imaging Incorporation
Inventor： Wen-Cheng Yen , Ren-Chieh Liu
Abstract: The present invention provides a pixel circuit. A first S/H stage and the second S/H stage are connected in cascade between a buffer amplifier and an amplifier circuit. During a first and a second time period, a buffered output signal having a first voltage and a second voltage generated by the buffer amplifier are stored serially to the first S/H stage and the second S/H stage. The amplifier circuit senses the first voltage and the second voltage stored in the first S/H stage and the second S/H stage independently for generating a first output signal and a second output signal correspondingly. A calibrated signal is generated according to the first output signal and the second output signal.
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Patent Agency Ranking
公开(公告)号：US11126832B2
公开(公告)日：2021-09-21
申请号：US15007047
申请日：2016-01-26
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：US20210207992A1
公开(公告)日：2021-07-08
申请号：US17209635
申请日：2021-03-23
Applicant: PixArt Imaging Incorporation
Inventor： Hui-Hsuan Chen , Nien-Tse Chen
Abstract: A proximity sensing device includes: a light source, a sensing unit, a light guide unit, and a window. The light source emits light, which is guided by the light guide unit to the window. The emitted light reflected by an object is received by the same window. The light guide unit includes a partial-transmissive-partial-reflective (PTPR) optical element, whereby the light emitted from the light source is reflected by the PTPR optical element, while the light reflected by the object passes through the PTPR optical element. There is only one window required.
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公开(公告)号：US11053116B2
公开(公告)日：2021-07-06
申请号：US16100447
申请日：2018-08-10
Applicant: PixArt Imaging Incorporation
Inventor： Chuan-Wei Wang
Abstract: The present invention discloses a Micro-Electro-Mechanical System (MEMS) acoustic pressure sensor device and a method for making same. The MEMS device includes: a substrate; a fixed electrode provided on the substrate; and a multilayer structure, which includes multiple metal layers and multiple metal plugs, wherein the multiple metal layers are connected by the multiple metal plugs. A cavity is formed between the multilayer structure and the fixed electrode. Each metal layer in the multilayer structure includes multiple metal sections. The multiple metal sections of one metal layer and those of at least another metal layer are staggered to form a substantially blanket surface as viewed from a moving direction of an acoustic wave.
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公开(公告)号：US10824241B2
公开(公告)日：2020-11-03
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 , G06F3/03 , G06F3/0484
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：US10816692B2
公开(公告)日：2020-10-27
申请号：US16681894
申请日：2019-11-13
Applicant: PixArt Imaging Incorporation
Inventor： En-Feng Hsu , Nien-Tse Chen
IPC: G01V8/12 , G01S17/02 , G01S7/481 , H01L31/02 , H01L31/0203 , H01L31/0216 , H01L31/14 , G01S17/04
Abstract: The present invention provides a package structure of an optical apparatus which includes a substrate, a light emitting device, a light sensing device, and a light barrier member. The light emitting device is disposed on the substrate and electrically connected to the substrate. The light emitting device is for emitting light. The light sensing device is disposed on the substrate and is a chip scale package (CSP) device. The light sensing device is for receiving light reflected by an object. The light barrier member is disposed around a periphery of the light sensing device.
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