公开(公告)号：US20180348032A1

公开(公告)日：2018-12-06

申请号：US15609023

申请日：2017-05-31

Applicant: PixArt Imaging Inc.

Inventor： Hsin-Chia Chen ,  Sen-Huang Huang ,  Wei-Chung Wang ,  Chao-Chien Huang ,  Ting-Yang Chang ,  Chun-Wei Chen

IPC: G01F1/708 ,  G01P5/22 ,  G01F1/712

Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.

公开(公告)号：US20230301479A1

公开(公告)日：2023-09-28

申请号：US18197739

申请日：2023-05-16

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Ting-Yang Chang

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

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：US11690490B2

公开(公告)日：2023-07-04

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 ,  G01B11/02 ,  G05D1/02 ,  A47L9/00

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

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：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：US10816321B2

公开(公告)日：2020-10-27

申请号：US15349923

申请日：2016-11-11

Applicant: PIXART IMAGING INC.

Inventor： Ting-Yang Chang ,  Shih-Wei Kuo ,  Yen-Min Chang

IPC: G01C3/08 ,  G01B11/04 ,  G01S17/08 ,  G01S17/04 ,  G01S17/88

Abstract: Provided herein are a measurement device and an operation method thereof. The measurement device senses a distance variation between the measurement device and an object using a built-in proximity sensor and accordingly determines whether to turn on or turn off a track sensing module and an optical ranging module such that the measurement device provides intelligent selection to achieve energy saving without being interfered with by other sensors being turned on.

公开(公告)号：US20200182672A1

公开(公告)日：2020-06-11

申请号：US16787051

申请日：2020-02-11

Applicant: PixArt Imaging Inc.

Inventor： Hsin-Chia Chen ,  Sen-Huang Huang ,  Wei-Chung Wang ,  Chao-Chien Huang ,  Ting-Yang Chang ,  Chun-Wei Chen

IPC: G01F1/708 ,  G01F1/712 ,  G06T7/246

Abstract: An optical flow sensing method includes: using an image sensor to capture images; using a directional-invariant filter device upon at least one first block of the first image to process values of pixels of the at least one first block of the first image, to generate a first filtered block image; using the first directional-invariant filter device upon at least one first block of the second image to process values of pixels of the at least one first block of the second image, to generate a second filtered block image; comparing the filtered block images to calculate a correlation result; and estimating a motion vector according to a plurality of correlation results.

公开(公告)号：US20200021334A1

公开(公告)日：2020-01-16

申请号：US16583241

申请日：2019-09-25

Applicant: PixArt Imaging Inc.

Inventor： En-Feng Hsu ,  Ting-Yang Chang

IPC: H04B5/00 ,  B60L53/12 ,  B60L53/38 ,  B60L53/37

Abstract: A charging system comprising: a charging apparatus; and at least one guiding apparatus, comprising at least one light emitting device provided in at least one target apparatus. The charging apparatus moves to a charging location according a light emitting state of the light emitting device, to charge the target apparatus. The charging apparatus further receives battery power information from the target apparatus via wireless communication.

公开(公告)号：US10457152B2

公开(公告)日：2019-10-29

申请号：US15481445

申请日：2017-04-06

Applicant: PixArt Imaging Inc.

Inventor： En-Feng Hsu ,  Ting-Yang Chang

IPC: B60L11/18 ,  H04B5/00 ,  B60L53/12 ,  B60L53/38 ,  B60L53/37

Abstract: A charging system, comprising: a charging apparatus; and at least one guiding apparatus, comprising at least one light emitting device provided in at least one target apparatus. The charging apparatus moves to a charging location according a light emitting state of the light emitting device, to charge the target apparatus.

公开(公告)号：US20180105048A1

公开(公告)日：2018-04-19

申请号：US15481445

申请日：2017-04-06

Applicant: PixArt Imaging Inc.

Inventor： En-Feng Hsu ,  Ting-Yang Chang

IPC: B60L11/18 ,  H02J7/02 ,  H04B5/00

CPC classification number: H04B5/0031 ,  B60L53/12 ,  B60L53/37 ,  B60L53/38 ,  H04B5/0037 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/14

Abstract: A charging system, comprising: a charging apparatus; and at least one guiding apparatus, comprising at least one light emitting device provided in at least one target apparatus. The charging apparatus moves to a charging location according a light emitting state of the light emitting device, to charge the target apparatus.