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公开(公告)号：US20240404384A1
公开(公告)日：2024-12-05
申请号：US18801885
申请日：2024-08-13
Applicant: PixArt Imaging Inc.
Inventor： CHENG-NAN TSAI , GUO-ZHEN WANG , CHING-KUN CHEN , YEN-CHANG CHU , CHIH-MING SUN
IPC: G08B17/107
Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.
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公开(公告)号：US20240019871A1
公开(公告)日：2024-01-18
申请号：US18373999
申请日：2023-09-28
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG
IPC: G05D1/02 , A47L9/28 , G06T7/62 , G06T7/73 , A47L9/00 , A47L9/30 , G06V10/141 , G06V20/10 , G06V20/58
CPC classification number: G05D1/0246 , A47L9/2826 , G06T7/62 , G06T7/73 , A47L9/009 , A47L9/30 , A47L9/2852 , A47L9/2842 , A47L9/2847 , G06V10/141 , G06V20/10 , G06V20/58 , A47L2201/06 , G06T2207/30261 , G05D2201/0215 , A47L2201/04
Abstract: There is provided a moving robot including a light projector, an image sensor and a processing unit. The light projector projects a vertical light segment and a horizontal light segment toward a moving direction. The image sensor captures, toward the moving direction, an image frame containing a first light segment image associated with the vertical light segment and a second light segment image associated with the horizontal light segment. The processing unit recognizes a plush carpet in the moving direction when a vibration intensity of the second light segment image is higher than a predetermined threshold, and an obstacle height calculated according to the first light segment image is larger than a height threshold.
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公开(公告)号：US20240004077A1
公开(公告)日：2024-01-04
申请号：US18369866
申请日：2023-09-19
Applicant: PIXART IMAGING INC.
Inventor： GUO-ZHEN WANG , MING-TSAN KAO
Abstract: Disclosed are a distance measuring method and a distance measuring apparatus. During the distance measuring, an image is obtained. If the location of a center of gravity of the image is within a first segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point, according to a first mapping relationship and the location of a center of gravity of the image. If the location of a center of gravity of the image is within a second segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point according to a second mapping relationship and the location of a center of gravity of the image.
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54.发明公开公开(公告)号：US20230302627A1
公开(公告)日：2023-09-28
申请号：US18198818
申请日：2023-05-17
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG , HUI-HSUAN CHEN
CPC classification number: B25J9/0003 , B25J9/1676 , G06T7/70 , B25J11/0085
Abstract: There is provided an electronic product that performs the obstacle avoidance, positioning and object recognition according to image frames captured by the same optical sensor. The electronic product includes an optical sensor, a light emitting diode, a laser diode and a processor. The processor identifies an obstacle and a distance thereof according to image frames captured by the optical sensor when the laser diode is emitting light. The processor further performs the positioning and object recognition according to image frames captured by the optical sensor when the light emitting diode is emitting light.
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公开(公告)号：US20230259139A1
公开(公告)日：2023-08-17
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 , G05D1/0242 , B25J11/0085 , G06T7/521 , A47L11/4011 , A47L2201/06 , G05D2201/0215
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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Patent Agency Ranking
公开(公告)号：US20230209174A1
公开(公告)日：2023-06-29
申请号：US18111600
申请日：2023-02-20
Applicant: PixArt Imaging Inc.
Inventor： HAN-CHANG LIN , GUO-ZHEN WANG , NIEN-TSE CHEN
CPC classification number: H04N23/611 , G06F3/013 , G02B27/0093 , G06V40/18 , G06V40/161 , H04N23/61 , H04N23/63
Abstract: An electronic system including a display device, an image sensor, a face detection engine, an eye detection engine and an eye protection engine is provided. The image sensor captures an image. The face detection engine recognizes a user face in the image. The eye detection engine recognizes user eyes in the image. The eye protection engine turns off the display device when the user eyes are recognized in the image but the user face is not recognized in the image.
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公开(公告)号：US20210349520A1
公开(公告)日：2021-11-11
申请号：US17380660
申请日：2021-07-20
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG
IPC: G06F1/3234 , G06F3/0354 , G06F3/038 , G06F3/03
Abstract: A sensor device includes an image sensing array, a frame buffer, a first read line, a second read line and an energy accumulator. The image sensing array is configured to sense reflected light from a working surface and includes a plurality of sensing pixels and a plurality of self-powered pixels. The sensing pixels respectively output image data according to the sensed reflected light. The self-powered pixels respectively output photocurrent according to the sensed reflected light. The first read line is coupled between the sensing pixels and the frame buffer. The second read line is coupled between the self-powered pixels and the frame buffer. The energy accumulator stores electrical energy of the photocurrent via a charge path between the self-powered pixels and the energy accumulator.
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公开(公告)号：US20200225729A1
公开(公告)日：2020-07-16
申请号：US16826751
申请日：2020-03-23
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG
IPC: G06F1/3234 , G06F3/0354 , G06F3/038
Abstract: A sensor device includes an image sensing array, a frame buffer, a first read line, a second read line and an energy accumulator. The image sensing array is configured to sense reflected light from a working surface and includes a plurality of sensing pixels and a plurality of self-powered pixels. The sensing pixels respectively output image data according to the sensed reflected light. The self-powered pixels respectively output photocurrent according to the sensed reflected light. The first read line is coupled between the sensing pixels and the frame buffer. The second read line is coupled between the self-powered pixels and the frame buffer. The energy accumulator stores electrical energy of the photocurrent via a charge path between the self-powered pixels and the energy accumulator.
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公开(公告)号：US20200041253A1
公开(公告)日：2020-02-06
申请号：US16601648
申请日：2019-10-15
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG
Abstract: There is provided an optical distance measurement system including an image sensor and a processing unit. The processing unit is configured to generate an image to be calculated according to at least one image captured by the image sensor, wherein different image regions of the image to be calculated correspond to different exposure times thereby improving the accuracy of the distance calculation.
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公开(公告)号：US20190068872A1
公开(公告)日：2019-02-28
申请号：US16174484
申请日：2018-10-30
Applicant: PixArt Imaging Inc.
Inventor： GUO-ZHEN WANG , REN-HAU GU , EN-FENG HSU
Abstract: An imaging device including a pixel matrix and a processor is provided. The pixel matrix includes a plurality of phase detection pixels and a plurality of regular pixels. The processor performs autofocusing according to pixel data of the phase detection pixels, and determines an operating resolution of the regular pixels according to autofocused pixel data of the phase detection pixels, wherein the phase detection pixels are always-on pixels and the regular pixels are selectively turned on after the autofocusing is accomplished.
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