公开(公告)号：US20250013318A1

公开(公告)日：2025-01-09

申请号：US18890742

申请日：2024-09-19

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang ,  Yen-Min Chang ,  Shih-Wei Kuo

IPC: G06F3/03

Abstract: A method for configuring an optical input device is provided. The optical input device includes a movable unit and a sensing device. The movable unit is arranged to move within a predetermined range. The sensing device is arranged to detect a position within the predetermined range at which the movable unit is located. The method includes: adjusting an optical setting of the sensing device to obtain an optimal dynamic range of the sensing device; and configuring a valid input threshold for the optical input device based on the optimal dynamic range.

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.

公开(公告)号：US20240426639A1

公开(公告)日：2024-12-26

申请号：US18824949

申请日：2024-09-05

Applicant: PixArt Imaging Inc.

Inventor： CHUNG-MIN THOR ,  Kuan-Choong Shim

IPC: G01D5/347

Abstract: There is provided an optical encoder including an encoding medium and a substrate. The encoding medium has a relative movement with respect to the substrate in a predetermined direction. The substrate includes an index photodiode and two control photodiodes. The index photodiode is arranged between the two control photodiodes along the predetermined direction. The output signals of the two control photodiodes are for controlling ON/OFF of gain regulation on an output signal of the index photodiode so as to turn on the gain regulation within an interval during which the index photodiode does not generate an index pulse but to turn off the gain regulation within an interval during which the index photodiode generates the index pulse.

公开(公告)号：US12175047B2

公开(公告)日：2024-12-24

申请号：US17897722

申请日：2022-08-29

Applicant: PIXART IMAGING INC.

Inventor： Che-Chia Hsu ,  Chi-Chieh Liao ,  Yu-Han Chen

IPC: G06F3/044 ,  G06F3/041 ,  H01L25/075

Abstract: A capacitive touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes and a plurality of light-emitting diode (LED) dies. The plurality of sensing electrodes and the plurality of driving electrodes form a touch sensing region of the capacitive touchpad, and the touch sensing region is divided into a plurality of sensing units having same areas. Each of the LED dies is arranged in two adjacent ones of the plurality of sensing units, and a position of each of the LED dies corresponds to one of the plurality of driving electrodes, and the LED dies are electrically isolated from the plurality of sensing electrodes and the plurality of driving electrodes.

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.

公开(公告)号：US20240405042A1

公开(公告)日：2024-12-05

申请号：US18204959

申请日：2023-06-02

Applicant: PixArt Imaging Inc.

Inventor： Jen-Chuan Chen ,  Chi-Chih Shen ,  Hsuan-Yao Chang ,  Yu-Chiao Peng

IPC: H01L27/146 ,  H01L31/18

Abstract: An optical detection module and a related manufacturing method are applied for chip scale package technology. The optical detection module includes a chip scale package assembly and a light sheltering layer. The chip scale package assembly includes a glass substrate, a detection chip, an isolation layer, a plurality of redistribution layers, and a plurality of conductive contacts. The detection chip is located above the glass substrate. The isolation layer is disposed on a surface of the detection chip opposite to the glass substrate. The plurality of redistribution layers is disposed on the isolation layer and spaced from each other, and having a plurality of conductive units. The plurality of conductive contacts is respectively disposed on the plurality of conductive units. The light sheltering layer is disposed on a lateral surface of the chip scale package assembly, and adapted to block light transmission and provide a covering protection function.

公开(公告)号：US12160184B2

公开(公告)日：2024-12-03

申请号：US18542804

申请日：2023-12-18

Applicant: PixArt Imaging Inc.

Inventor： Ville Topias Makinen ,  Roberto Tejera-Garcia

IPC: H02N1/00

Abstract: A stacked structure formed of two active element (AE) layers includes: a first substrate; a second substrate; a first conductive surface and a second conductive surface totally formed on the first substrate and second substrate, respectively, and including an active region and a connecting region; a compression space between the first active region of the first conductive surface and the second substrate; an elastic layer including a plurality of elastic nodules spanning the compression space and contacting the second substrate, formed on the active region of the first conductive surface or on an exposed surface of the second substrate, the elastic nodules compressed in response to a voltage difference between the first and second conductive surfaces or to an external force; a conductive adhesive contacting the connecting region of the first and second conductive surfaces; and a conductive element coupled to the conductive adhesive, for electrically connecting the AE layers.

公开(公告)号：US12156632B2

公开(公告)日：2024-12-03

申请号：US17900949

申请日：2022-09-01

Applicant: PIXART IMAGING INC.

Inventor： Shih-Feng Chen ,  Han-Lin Chiang ,  Ning Shyu

IPC: A47L9/28 ,  A47L5/22 ,  A47L9/00 ,  A47L9/14 ,  A47L9/19 ,  A47L9/22 ,  A47L9/30 ,  G01N15/075 ,  G05D1/00 ,  G06T7/00 ,  G06V10/75

Abstract: A cleaning system and a cleaning method are provided. The cleaning system includes a main body, an air suctioning device, a light source, an optical sensor, a memory and a processing unit. The air suctioning device includes an air flow passage and a fan-motor assembly that is disposed in the air flow passage and generates a suction force to suction outside air through the air flow passage. The light source emit light to the air flow passage. The optical sensor captures a plurality of successive image frames from the air flow passage. The processing unit is configured to: obtain first and second image frames from the successive image frames; compare the first image frame with the second image frame to identify dust particles; obtain a particle feature of the dust particles; and determine a current cleanness condition according to the particle feature.

公开(公告)号：US12148279B2

公开(公告)日：2024-11-19

申请号：US17883625

申请日：2022-08-09

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai ,  Yen-Chang Chu ,  Chih-Ming Sun

IPC: G08B17/10 ,  G08B17/107

Abstract: A smoke detector includes a substrate, an optical detection module, a base and a top cover. The substrate has a ring shape region surrounding a central detection region, and a first block structure of the central detection region is protruded from the substrate and higher than an upper surface of the ring shape region. The optical detection module is disposed inside the central detection region. The base is disposed on the substrate and around the optical detection module. The base has a second block structure. The top cover is connected to the base. A lateral wall of the top cover is partly overlapped with the second block structure to form a guiding channel. The optical detection module analyzes variation of scattering parameters resulted from gaseous matter entering the top cover through the guiding channel for determining concentration of the gaseous matter.

公开(公告)号：US12137295B2

公开(公告)日：2024-11-05

申请号：US18235370

申请日：2023-08-18

Applicant: PixArt Imaging Inc.

Inventor： Ren-Chieh Liu ,  Yi-Cheng Chiu

IPC: H04N25/767 ,  H01L27/146

Abstract: There is provided a pixel circuit capable of outputting time difference data or image data, and including a first temporal circuit and a second temporal circuit. The first temporal circuit is used to store detected light energy of a first interval and a second interval as the time difference data. The second temporal circuit is used to store detected light energy of the second interval as the image data. The pixel circuit is used to output a pulse width signal corresponding to the time difference data or the image data in different operating modes.