公开(公告)号：US12106605B2

公开(公告)日：2024-10-01

申请号：US18225443

申请日：2023-07-24

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen Wang ,  Han-Chang Lin

IPC: G06V40/16 ,  G06V10/10 ,  H04N23/611 ,  H04N23/65 ,  H04N23/667

CPC classification number: G06V40/166 ,  G06V10/17 ,  H04N23/611 ,  H04N23/651 ,  H04N23/667

Abstract: A portable electronic device and an operation method are provided. The portable electronic device includes a body, a screen, a camera, an image sensor and a main system. The image sensor continually captures a first image outside the body with a first resolution and a first power consumption. The camera is turned on in the first state of the portable electronic device by the main system to capture a second image outside the body with a second power consumption and a second resolution only when the face image information appeared for over two seconds on the screen is detected by the image sensor from the first image. The second resolution is higher than the first resolution, and the second power consumption is higher than the first power consumption.

公开(公告)号：US12105297B2

公开(公告)日：2024-10-01

申请号：US18235884

申请日：2023-08-21

Applicant: PixArt Imaging Inc.

Inventor： Hun-Kwang Lee ,  Sai-Mun Lee ,  Priscilla Tze-Wei Goh ,  Lye-Pin Chu

IPC: G02B27/09 ,  G06F3/03 ,  G06F3/0354

CPC classification number: G02B27/0994 ,  G06F3/0304 ,  G06F3/03543

Abstract: An optical mouse operated with respect to an illuminated surface outside the optical mouse is provided. The optical mouse includes a light source configured to emit a light beam, and a light pipe including a first optical element and a second optical element. The light beam enters the light pipe through the first optical element, and then propagates in the light pipe from the first optical element to the second optical element without reflection, and then leaves the light pipe through the second optical element, and then illuminates the illuminated surface. The light pipe does not have any protrusion extending therefrom and attached to a front surface of the light source.

公开(公告)号：US12100165B2

公开(公告)日：2024-09-24

申请号：US18223021

申请日：2023-07-17

Applicant: PixArt Imaging Inc.

Inventor： Keen-Hun Leong ,  Boon-How Kok ,  Dennis Dominic Donald

IPC: G06T7/20 ,  B60W30/00 ,  B62D15/02 ,  G01C22/00 ,  G01C25/00 ,  G06F3/0362 ,  H04N23/90 ,  G01C21/26

CPC classification number: G06T7/20 ,  B60W30/00 ,  B62D15/024 ,  G01C22/00 ,  G01C25/00 ,  G06F3/0362 ,  H04N23/90 ,  G01C21/26 ,  G06T2207/30241 ,  G06T2207/30252

Abstract: An optical sensor system for determining trajectory of a wheel includes: a wheel mounted in a wheel arch having an outer surface covered with evenly-spaced wheel treads; an optical sensor mounted in the wheel arch but not touching the wheel, for performing a plurality of counts corresponding to respectively capturing a plurality of images of the wheel according to the wheel treads, and comparing the captured images with a reference image to determine a 2D displacement. The optical sensor further performs a calculation to convert the measured 2D displacement of the wheel from its original position into a distance the wheel travels along a path in order to determine the wheel trajectory.

公开(公告)号：US20240265082A1

公开(公告)日：2024-08-08

申请号：US18636325

申请日：2024-04-16

Applicant: PixArt Imaging Inc.

Inventor： YEN-MIN CHANG

IPC: G06F21/32 ,  A61B5/117 ,  A61B5/1171 ,  A61B5/1172 ,  G06V40/10 ,  G06V40/12 ,  G06V40/16 ,  G06V40/18 ,  G06V40/70 ,  H04L67/131

CPC classification number: G06F21/32 ,  A61B5/117 ,  A61B5/1172 ,  A61B5/1176 ,  G06V40/70 ,  G06V40/12 ,  G06V40/15 ,  G06V40/172 ,  G06V40/197 ,  H04L67/131

Abstract: A virtual reality system including an image viewing device and a wearable accessary is provided. The image viewing device detects a biometric characteristic to identify a user ID according to the biometric characteristic, outputs an ID signal associated with the identified user ID and shows video stream associated with the identified user ID. The wearable accessary detects an attached status and movement of the wearable accessary after receiving the ID signal, and sends a control signal to the image viewing device to change image content in the video stream according to the detected movement of the wearable accessary when the attached status indicates continuous wearing.

公开(公告)号：US20240257632A1

公开(公告)日：2024-08-01

申请号：US18632330

申请日：2024-04-11

Applicant: PixArt Imaging Inc.

Inventor： CHING-KUN CHEN ,  GUO-ZHEN WANG

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

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：US20240230435A1

公开(公告)日：2024-07-11

申请号：US18616202

申请日：2024-03-26

Applicant: PixArt Imaging Inc.

Inventor： Ming-Hung Tsai ,  Chun-Yang Chen ,  Yen-Po Chen

IPC: G01L1/26 ,  G01L25/00 ,  G06F3/041

CPC classification number: G01L1/26 ,  G01L25/00 ,  G06F3/0414 ,  G06F3/0418

Abstract: A force sensing method, applied to a force sensing system comprising a plurality of force sensors and a touch sensing surface, comprising: (a) determining a first location of a first object on the touch sensing surface; (b) defining a first force sensing region according to the first location; and (c) computing a first system sensing force which the first object causes to the touch sensing surface according to the first location, and according to at least one sensor sensing force of a first part of the force sensors corresponding to the first force sensing region. The present invention also discloses a force sensing system which uses the above-mentioned force sensing method, and an efficient force sensor calibration method. Noises can be reduced and power consumption can be decreased, since only sensor sensing forces of force sensors near the object are used for computing the system sensing force.

公开(公告)号：US20240222308A1

公开(公告)日：2024-07-04

申请号：US18149121

申请日：2023-01-02

Applicant: PIXART IMAGING INC.

Inventor： SAI-MUN LEE ,  CHEE-PIN T'NG

IPC: H01L23/00

CPC classification number: H01L24/29 ,  H01L24/30 ,  H01L24/32 ,  H01L24/83 ,  H01L24/06 ,  H01L24/48 ,  H01L24/49 ,  H01L24/73 ,  H01L2224/0603 ,  H01L2224/06155 ,  H01L2224/06181 ,  H01L2224/29007 ,  H01L2224/29013 ,  H01L2224/29015 ,  H01L2224/29021 ,  H01L2224/29023 ,  H01L2224/2919 ,  H01L2224/2929 ,  H01L2224/29339 ,  H01L2224/3015 ,  H01L2224/30505 ,  H01L2224/30517 ,  H01L2224/32227 ,  H01L2224/48227 ,  H01L2224/4912 ,  H01L2224/73265 ,  H01L2224/83192 ,  H01L2924/0665

Abstract: A sensor packaging method and a sensor package are provided. The method includes: providing a substrate having upper and lower board surfaces, in which the upper board surface has a die-bonding region. The substrate includes a core material layer, an upper metal layer, and an upper protection layer, a first window is formed to penetrate the upper protection layer and located at a periphery of the die-bonding region, and the first window is opened for a first ground electrode connected to a first ground portion. The method further includes: performing a dispensing step to apply an adhesive material on the upper board surface in at least a portion of the die-bonding region; and attaching a sensor die to the substrate through the adhesive material, in which the sensor die is disposed in the die-bonding region and has a first ground pin electrically connected to the first ground electrode.

公开(公告)号：US12025476B1

公开(公告)日：2024-07-02

申请号：US18307801

申请日：2023-04-27

Applicant: PIXART IMAGING INC.

Inventor： Kuan-Choong Shim ,  Meng-Yee Lim ,  Priscilla Tze-Wei Goh ,  Gim-Eng Chew

IPC: G01D5/347 ,  G01D18/00

CPC classification number: G01D5/34723 ,  G01D5/3473 ,  G01D18/001 ,  G01D2205/20

Abstract: There is provided an optical encoding system including a processor, and a photodiode array and a code disk opposite to each other. The photodiode array includes a detection photodiode group and a calibration photodiode group. If there is a position deviation between the photodiode array and the code disk, the processor determines whether to utilize detection signals of the calibration photodiode group according to phase shifts between detection signals outputted by the detection photodiode group so as to eliminate the phase shifts.

公开(公告)号：US12014567B1

公开(公告)日：2024-06-18

申请号：US18318723

申请日：2023-05-17

Applicant: PIXART IMAGING INC.

Inventor： Yu-Ju Lee ,  Tzung-Min Su

IPC: G06V40/13 ,  G06V40/12 ,  H04N23/71 ,  H04N23/72 ,  H04N23/73 ,  H04N23/74 ,  H04N25/50 ,  G06V40/10

CPC classification number: G06V40/13 ,  G06V40/1353 ,  H04N23/71 ,  H04N23/72 ,  H04N23/73 ,  H04N23/74 ,  H04N25/50 ,  G06V40/15

Abstract: There is provided a finger detection device including a light source, a light sensor and a processor. The light sensor respectively captures a first image frame and a second image frame corresponding to turning on and turning off the light source. The processor calculates a differential image frame of the first image frame and the second image frame, determines a covered region in the differential image frame and identifies whether the covered region is a finger region or not. If the covered region is not the finger region, the processor controls the light sensor to acquire new image frames. If the covered region is the finger region, the processor determines different windows of interest in the finger region.

公开(公告)号：US12007258B2

公开(公告)日：2024-06-11

申请号：US17845995

申请日：2022-06-21

Applicant: PixArt Imaging Inc.

Inventor： Ching-Shun Chen

IPC: G01D5/24 ,  B32B5/02 ,  B32B7/12 ,  B62D1/04 ,  B62D1/06 ,  H05B3/34

CPC classification number: G01D5/24 ,  B32B5/02 ,  B32B7/12 ,  B62D1/046 ,  B62D1/065 ,  H05B3/34 ,  B32B2457/00

Abstract: A flexible capacitive touch sensing device comprising a first, a second sensing region and a capacitance detection circuit. Each of the first, second sensing region comprises: flexible material; and electrodes, in or on the flexible material. Capacitance sensed by the capacitance detection circuit is used for detecting if an object causes capacitance variation to the first sensing region and the second sensing region. The first sensing region comprises a first side region with a first side which is adjacent to a second side of the second sensing region Shapes of the electrodes are changeable after provided on the flexible material. The electrodes are overlapped in normal directions of the first side region and the second side region. An angle which is not 0 degree exists between the electrodes which are overlapped. Such flexible capacitive touch sensing device can be applied to generate a HOD device with different sizes.