公开(公告)号：US20220007908A1

公开(公告)日：2022-01-13

申请号：US16924138

申请日：2020-07-08

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Ting-Yang Chang

IPC: A47L9/28 ,  A47L11/40 ,  A47L9/00 ,  G01B11/02 ,  G05D1/02

Abstract: An auto clean machine comprising: a height computing device; and an obstacle determining device. The height computing device is turned on to compute a height or an overhang height of an obstacle when the obstacle determining device determines the obstacle exists in a predetermined region of the auto clean machine. The height computing device does not compute the height and the overhang height when the obstacle determining device does not determine the obstacle exists in the predetermined region.

公开(公告)号：US11099624B2

公开(公告)日：2021-08-24

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 ,  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.

公开(公告)号：US20210063571A1

公开(公告)日：2021-03-04

申请号：US16561001

申请日：2019-09-04

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Tse-En Peng

IPC: G01S17/02 ,  G01S17/08 ,  G01S7/48

Abstract: An object detecting system comprising: a first distance measuring device, configured to measure a first distance between a first part of an object and the first distance measuring device; a second distance measuring device, configured to measure a second distance between a second part of the object and the second distance measuring device; a uniform light source, configured to emit uniform light to the object; an optical sensor, configured to sense optical data of the object generated based on the uniform light; and a control circuit, configured to calculate a location of the object according to the first distance, the second distance and the optical data.

公开(公告)号：US10935661B2

公开(公告)日：2021-03-02

申请号：US16281330

申请日：2019-02-21

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Ming-Tsan Kao

IPC: G01C3/08 ,  G01S17/89 ,  G01S17/46

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.

公开(公告)号：US10775933B2

公开(公告)日：2020-09-15

申请号：US16030872

申请日：2018-07-10

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Shih-Feng Chen ,  Han-Chang Lin

IPC: G06F3/042 ,  G06F3/03 ,  G06F3/041

Abstract: A touch control detecting method applied to an electronic apparatus comprising an image sensor. The touch control detecting method comprises: (a) capturing a plurality of sensing images via the image sensor; and (b) determining if an object performs a predetermined touch control operation to the electronic apparatus, according to a brightness variation tendency of the sensing images. The predetermined touch control operation is a long press operation.

公开(公告)号：US10148864B2

公开(公告)日：2018-12-04

申请号：US15374499

申请日：2016-12-09

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Ren-Hau Gu ,  En-Feng Hsu

IPC: H04N5/232 ,  G06K9/00 ,  G02B7/36 ,  G06K7/14 ,  G06K7/10 ,  G02B7/28 ,  H04N5/369 ,  H04N13/232 ,  H04N13/229 ,  G02B3/00 ,  H04N13/00 ,  H04N13/257 ,  H04N13/218

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.

公开(公告)号：US10136787B2

公开(公告)日：2018-11-27

申请号：US14989807

申请日：2016-01-07

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: H04N5/217 ,  A47L11/24

Abstract: An image processing method, applied to an image processing apparatus comprising a light source and an image sensor. The image sensing method comprises: acquiring a first image via the image sensor if the light source operates in a first mode; acquiring a second image via the image sensor if the light source operates in a second mode; acquiring a third image via the image sensor if the light source operates in the first mode; generating a combined image based on the first image and the third image; and acquiring a target image after background noise removing based on the second image and the combined image.

公开(公告)号：US10104302B2

公开(公告)日：2018-10-16

申请号：US15161277

申请日：2016-05-22

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: H04N5/235 ,  H04N5/369 ,  G06T7/73

Abstract: An image determining method, applied to an image sensing apparatus with a lens and an image sensor comprising a first pixel and a second pixel. First/second parts of the first/second pixels are respectively covered. The image determining method comprises: applying the first/second pixel to respectively generate a first/second object image, wherein the first/second object images are combined to generate a first combined object image; computing a first brightness information variation tendency of the first object image, a second brightness information variation tendency of the second object image and brightness information variation tendency of the first combined object image; and determining if the first combined object image is a front image or a rear image based on the first brightness information variation tendency, the second brightness information variation tendency and the brightness information variation tendency of the first combined object image.

公开(公告)号：US10007845B2

公开(公告)日：2018-06-26

申请号：US15199965

申请日：2016-06-30

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G06K9/00 ,  H04N5/232 ,  G06F3/01 ,  G02B27/01 ,  G06F3/00

CPC classification number: G06K9/0061 ,  G02B27/0093 ,  G02B27/017 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0178 ,  G06F3/005 ,  G06F3/013 ,  G06F3/017 ,  G06K9/00597 ,  H04N5/23219 ,  H04N5/23222

Abstract: An eye state detecting method, applied to an electronic apparatus with an image sensor, comprising: (a) defining a detecting range according to a possible location of a user's eye, wherein the detecting range is smaller than a maximum detecting range that the electronic apparatus can apply; (b) capturing a detecting image via the detecting range; and (c) determining whether the user's eye is in an opening state or in a closing state according a brightness of to the detecting image. The present invention also discloses a method applying a smaller determining range to determine if the user's eye is open or close.

公开(公告)号：US20180137643A1

公开(公告)日：2018-05-17

申请号：US15870109

申请日：2018-01-12

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang

IPC: G06T7/70 ,  G06K9/66 ,  G06T5/20 ,  G06K9/62

CPC classification number: G06T7/70 ,  G06K9/46 ,  G06K9/6202 ,  G06K9/6267 ,  G06K9/6273 ,  G06K9/66 ,  G06T5/20 ,  G06T7/248 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: The present disclosure discloses an object detection method based on machine learning. The object detection method senses a motion of an object by a motion sensor to generate a testing image, captures the testing image by an image sensor to transmit a sensed image to an object detection device, and detects a position of the object in the sensed image by the object detection device. Therefore, the present disclosure increases the accuracy of image recognition under various conditions.