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    Object determining system and robot cleaner applying the object determining system
    102.
    发明授权
    Object determining system and robot cleaner applying the object determining system 有权

    公开(公告)号：US12183070B2

    公开(公告)日：2024-12-31

    申请号：US18496946

    申请日：2023-10-30

    Applicant: PixArt Imaging Inc.

    Inventor： Guo-Zhen Wang

    IPC: G06K9/00 ,  G06V10/143 ,  G06V20/10

    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.

    Optical sensing system
    103.
    发明授权
    Optical sensing system 有权

    公开(公告)号：US12164028B2

    公开(公告)日：2024-12-10

    申请号：US18418767

    申请日：2024-01-22

    Applicant: PIXART IMAGING INC.

    Inventor： Guo-Zhen Wang

    IPC: G01S17/08 ,  G01S7/497 ,  G01S17/04 ,  G05D1/00 ,  G05D1/628

    Abstract: An optical sensing system is 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.

    Optical sensor device having sensing pixels and self-powered pixels
    104.
    发明授权
    Optical sensor device having sensing pixels and self-powered pixels 有权

    公开(公告)号：US12117884B2

    公开(公告)日：2024-10-15

    申请号：US18222468

    申请日：2023-07-16

    Applicant: PixArt Imaging Inc.

    Inventor： Guo-Zhen Wang

    IPC: G06F1/3234 ,  G06F3/03 ,  G06F3/0354 ,  G06F3/038

    CPC classification number: G06F1/3259 ,  G06F3/0317 ,  G06F3/0354 ,  G06F3/03543 ,  G06F3/038 ,  Y02D10/00

    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.

    Method for eliminating misjudgment of reflective light and optical sensing system
    106.
    发明授权
    Method for eliminating misjudgment of reflective light and optical sensing system 有权

    公开(公告)号：US12036668B2

    公开(公告)日：2024-07-16

    申请号：US18381108

    申请日：2023-10-17

    Applicant: PIXART IMAGING INC.

    Inventor： Guo-Zhen Wang

    IPC: B25J19/02 ,  G01S17/04

    CPC classification number: B25J19/021 ,  G01S17/04 ,  A47L2201/04

    Abstract: A method for eliminating misjudgment of a reflective light is provided. A light source emits a transverse linear light toward a direction of a floor as detection light and the light sensor senses reflective light signals from an object that reflects the detection light. In the method, a frame image including the reflective light signals is captured by the light sensor, centers of gravity of the reflective light signals are analyzed, and the centers of gravity of the reflective light signals can be corrected based on a line of gravity or a center of gravity of previous reflective light signals stored in a memory of the autonomous robot in order to exclude a center of gravity generated by the reflective light signal from a wall. A distance of the object can be confirmed based on the corrected centers of gravity of reflective light signals.

    Auto clean machine and auto clean machine control method
    109.
    发明授权
    Auto clean machine and auto clean machine control method 有权

    公开(公告)号：US11880205B2

    公开(公告)日：2024-01-23

    申请号：US17968810

    申请日：2022-10-19

    Applicant: PixArt Imaging Inc.

    Inventor： Guo-Zhen Wang

    IPC: G05D1/02 ,  G05D1/00 ,  A47L11/40 ,  G01C3/08 ,  G01C5/00

    CPC classification number: G05D1/0214 ,  A47L11/4011 ,  A47L11/4061 ,  G05D1/0088 ,  G05D1/0231 ,  A47L2201/04 ,  G01C3/08 ,  G01C5/00 ,  G05D2201/0203

    Abstract: An auto clean machine, comprising: a light source configured to emit light to illuminate at least one light region outside and in front of the auto clean machine; a first image sensing area, configured to sense a first brightness distribution of the light region; a second image sensing area below the first image sensing area, configured to sense a second brightness distribution of the light region; and a processor, configured to control movement of the auto clean machine according the first brightness distribution and the second brightness distribution. The processor generates a wall detection result based on the first brightness distribution of the light region, generates a cliff detection result based on the second brightness distribution of the light region, and controls the movement of the auto clean machine according to the wall detection result and the cliff detection result.

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