公开(公告)号：US20170118389A1

公开(公告)日：2017-04-27

申请号：US15161277

申请日：2016-05-22

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: H04N5/235 ,  G06K9/00 ,  G06T7/00 ,  H04N5/369

CPC classification number: H04N5/2351 ,  G01C3/32 ,  G06T7/73 ,  G06T2207/10012 ,  H04N5/23212 ,  H04N5/3696

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：US12216063B2

公开(公告)日：2025-02-04

申请号：US17242296

申请日：2021-04-27

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Hung-Ching Lai ,  Guo-Zhen Wang

IPC: G01N21/94 ,  G01N21/88

Abstract: An electronic device, comprising: a first light source, configured to emit first light; a second light source, configured to emit second light; a first optical sensor, configured to sense first optical data generated based on reflected light of the first light; a light guiding device, configured to receive the second light; and a second optical sensor, configured to sense second optical data generated based on the second light emitted by the light guiding device. The first optical sensor and the second optical sensor can be integrated to a single optical sensor.

公开(公告)号：US20250022357A1

公开(公告)日：2025-01-16

申请号：US18221377

申请日：2023-07-12

Applicant: PixArt Imaging Inc.

Inventor： Ching-Kun Chen ,  Guo-Zhen Wang

IPC: G08B17/107 ,  G01N21/47

Abstract: A smoke detector comprises a light source, an optical sensor, a first, and a second processing circuit. The optical sensor senses optical data and comprises; a first oscillator, generating a first oscillating signal; and a second oscillator, generating a second oscillating signal. The first processing circuit generates a first command to instruct the first oscillator to oscillate for a first expected oscillating time, and acquires a first real oscillating time, wherein the first processing circuit further computes a time relation between the first expected oscillating time and the first real oscillating time. The first processing circuit generates a second command to instruct the second oscillator to oscillate for a second expected oscillating time according to the time relation. The second processing circuit controls the smoke detector to generate a first alarm according to the time relation. The optical sensor can also be applied to other electronic devices.

公开(公告)号：US12172301B2

公开(公告)日：2024-12-24

申请号：US18198818

申请日：2023-05-17

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Hui-Hsuan Chen

IPC: B25J9/00 ,  B25J9/16 ,  G06T7/70 ,  B25J11/00

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.

公开(公告)号：US12096908B2

公开(公告)日：2024-09-24

申请号：US18197739

申请日：2023-05-16

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Ting-Yang Chang

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

CPC classification number: A47L9/2826 ,  A47L9/009 ,  A47L11/4011 ,  A47L11/4061 ,  G01B11/02 ,  G05D1/0238 ,  A47L2201/04 ,  A47L2201/06

Abstract: A robot cleaner comprises a first light source, an optical sensor, a processing circuit and a second light source. The first light source emits first light. The optical sensor senses first optical data generated according to the first light. The processing circuit computes a height or an overhang height of an obstacle based on the first optical data. The second light source emits second light. The optical sensor senses second optical data generated according to the second light. The processing circuit determines whether the obstacle exists in the predetermined region or not based on the second optical data.

公开(公告)号：US11990024B2

公开(公告)日：2024-05-21

申请号：US17878063

申请日：2022-08-01

Applicant: PIXART IMAGING INC.

Inventor： Ching-Kun Chen ,  Guo-Zhen Wang

IPC: G08B29/20 ,  G08B17/103 ,  G08B29/18 ,  G08B25/00

CPC classification number: G08B29/20 ,  G08B17/103 ,  G08B29/185 ,  G08B25/008

Abstract: There is provided a fire alarm device including multiple light sources, a light sensor, a first processor and a second processor. In a standby mode, the first processor identifies whether to wake up the second processor according to a detection result of the light sensor obtained by detecting emission light of one of the multiple light sources. The second processor identifies whether to generate an alarm according to a detection result of the light sensor obtained by detecting emission light of the multiple light sources. The fire alarm device further includes a thermal sensor for providing detected temperature values to the first processor and/or the second processor to perform the identifying procedure.

公开(公告)号：US11921205B2

公开(公告)日：2024-03-05

申请号：US17535108

申请日：2021-11-24

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang

IPC: G01S17/08 ,  G01S7/497 ,  G01S17/04 ,  G05D1/00

CPC classification number: G01S17/08 ,  G01S7/497 ,  G01S17/04 ,  G05D1/0238 ,  G05D2201/0203 ,  G05D2201/0215

Abstract: An optical sensing system and a method for eliminating misjudgment of a reflective light are provided. The optical sensing system includes a first light source, a second light source, a light sensor, and a processor. The processor is configured to: control the first light source to scan a horizontal detection area; control the light sensor to capture a first frame by receiving first reflective lights from the horizontal detection area; obtain a first reflection pattern, and analyze the first reflection pattern to determine whether an object is within the first portion; if so, control the second light source to scan a first vertical detection area; control the light sensor to capture a second frame from the first vertical detection area; process the second frame to obtain a second reflection pattern, and analyze the second reflection pattern to determine whether the object is detected by a misjudgment.

公开(公告)号：US20240054778A1

公开(公告)日：2024-02-15

申请号：US18496946

申请日：2023-10-30

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G06V20/10 ,  G06V10/143

CPC classification number: G06V20/10 ,  G06V10/143

Abstract: An object determining system, comprising: a processing circuit; a first stage object sensor, for generating a first stage object sensing result of an object; and a second stage object sensor, for generating a second stage object sensing result of the object if the processing circuit determines the object exists in a predetermined range based on the first stage object sensing result, wherein the processing circuit further determines an object kind of the object based on the second stage object sensing result; a line light source; and an area light source. The first stage object sensor generates the first stage object sensing result based on the line light. The second stage object sensor generates the second object detecting result based on the plane light. The first stage object sensor is a depth sensor or a thermal sensor. The second stage object sensor is an image sensor or a thermal sensor.

公开(公告)号：US11863859B2

公开(公告)日：2024-01-02

申请号：US18111600

申请日：2023-02-20

Applicant: PixArt Imaging Inc.

Inventor： Han-Chang Lin ,  Guo-Zhen Wang ,  Nien-Tse Chen

IPC: H04N23/611 ,  G06F3/01 ,  G02B27/00 ,  G06V40/18 ,  G06V40/16 ,  H04N23/61 ,  H04N23/63

CPC classification number: H04N23/611 ,  G02B27/0093 ,  G06F3/013 ,  G06V40/161 ,  G06V40/18 ,  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.

公开(公告)号：US11854215B2

公开(公告)日：2023-12-26

申请号：US17855886

申请日：2022-07-01

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Han-Chang Lin

IPC: G06T7/254 ,  G01J5/00 ,  G06F3/03 ,  G06T7/10 ,  G06T7/20 ,  G06T7/30 ,  G06T7/60 ,  G06V10/147 ,  G06V10/44 ,  G06V40/10 ,  H04N23/11

CPC classification number: G06T7/254 ,  G01J5/0025 ,  G06F3/0304 ,  G06T7/10 ,  G06T7/20 ,  G06T7/30 ,  G06T7/60 ,  G06V10/147 ,  G06V10/44 ,  G06V40/10 ,  H04N23/11 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/30196

Abstract: An image recognition system includes a processing module, a sensor module, and a database. The sensor module is electrically connected to the processing module. The database is electrically connected to the processing module. The sensor module configured for capturing at least one image. The at least one image is stored in the database. The processing captures a contour of an object from the at least one image and separates the contour of the object into a plurality of portions. A plurality of arrangements is defined between the portions of the contour of the object. The processing module determines a state of the contour of the object based on the arrangements.