公开(公告)号：US20230196757A1

公开(公告)日：2023-06-22

申请号：US18097283

申请日：2023-01-16

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: G06V20/10 ,  G06V10/143

CPC classification number: G06V20/10 ,  G06V10/143

Abstract: An electronic apparatus, comprising: an optical sensor, comprising a kind determining region and an element analyzing region, wherein the optical sensor acquires first optical data via the kind determining region, and acquires second optical data via the element analyzing region, wherein the kind determining region and the element analyzing region are different regions of the optical sensor; a kind determining component, configured to determine an object kind of the object according to the first optical data; and an element analyzing component, configured to analyze element of the object according to the second optical data.

公开(公告)号：US20230196717A1

公开(公告)日：2023-06-22

申请号：US17553833

申请日：2021-12-17

Applicant: PixArt Imaging Inc.

Inventor： Joon Chok LEE ,  Zi Hao TAN

IPC: G06V10/44 ,  H04N5/232

CPC classification number: G06V10/457 ,  H04N5/23229

Abstract: A connected component analysis (CCA) method, which can use labels repeatedly, comprising: defining a label pattern comprising a label and a plurality of neighboring labels; setting a center label of a current pixel of a target binary image according to a binary value of the current pixel and the neighboring pixels; setting at least two of the neighboring labels according to whether the current pixel is in any one of a first row, a first column and a last column; and recording the center label to a label buffer. Labels for marking pixels of the target binary image are first center labels, and then are second center labels, and are the first center labels again after the labels are the second center labels.

公开(公告)号：US11681514B2

公开(公告)日：2023-06-20

申请号：US17136480

申请日：2020-12-29

Applicant: PixArt Imaging Inc.

Inventor： Jr-Yi Li

IPC: G06F8/65 ,  G06F9/4401

CPC classification number: G06F8/65 ,  G06F9/4411

Abstract: There is provided a control chip including a microcontroller unit (MCU), a bus arbiter, a first bus, a second bus, a void hardware, a cache controller, a flash controller and a flash memory, wherein the flash memory is recorded with a firmware. When the MCU does not receive an update instruction, the bus arbiter reads, according to a function command of the MCU, a function return value associated with the function command from the flash memory via the first bus, the cache controller and the flash controller. When the MCU receives the update instruction, the bus arbiter updates the firmware in the flash memory via the second bus and the flash controller, and the void hardware actively replies a void return value associated with the function command to the MCU to replace the function return value.

公开(公告)号：US11681321B2

公开(公告)日：2023-06-20

申请号：US17521883

申请日：2021-11-09

Applicant: PixArt Imaging Inc.

Inventor： Chao-Chien Huang ,  Yen-Hung Wang ,  Yi-Chung Chen ,  Hui-Hsuan Chen ,  Yi-Hsien Ko

IPC: G06F3/033 ,  G05G9/047

CPC classification number: G05G9/047 ,  G05G2009/04759

Abstract: An image identification method is used to eliminate accumulated error of operation of a joystick. The joystick has an optical sensor adapted to analyze a movement of a plurality of identification dots disposed on a stick body. The image identification method includes receiving a series of detection images, setting a first identification dot of the plurality of identification dots as being a reference identification dot, and setting a second identification dot of the plurality of identification dos as being the reference identification dot and cancelling the first identification dot as being the reference identification dot when the first identification dot is near a border of the detection image. A position change of the reference identification dot in the series of detection images is used for identifying a control status of the joystick.

公开(公告)号：US20230169284A1

公开(公告)日：2023-06-01

申请号：US18104255

申请日：2023-01-31

Applicant: PixArt Imaging Inc.

Inventor： Shu-Sian Yang

IPC: G06K7/10 ,  A47J31/44 ,  G06K7/14 ,  G06K19/06

CPC classification number: G06K7/10722 ,  A47J31/4492 ,  G06K7/1413 ,  G06K19/06028

Abstract: A barcode, comprising: a code region, comprising at least two different types of information which represents code information of the code region; and a boundary region, formed as a closed shape surrounding the code region; wherein a decoding direction of the code region is not relative to the boundary region. The present invention also provides a barcode processing system which can process the barcode to generate a control command, and provides a coffee machine using the barcode processing system. The barcode can be easily aligned by a closed boundary region, without using a frame buffer with a large size.

公开(公告)号：US20230161422A1

公开(公告)日：2023-05-25

申请号：US17535662

申请日：2021-11-25

Applicant: PixArt Imaging Inc.

Inventor： Sai Mun LEE ,  Hun Kwang LEE ,  Yee Loong CHIN

IPC: G06F3/03 ,  G06F3/0354

CPC classification number: G06F3/0317 ,  G06F3/03541

Abstract: An optical navigation device includes a casing, a circuit board, an illumination light source and an optical receiver. The casing is movably located above a navigation surface. The circuit board is disposed inside the casing. The illumination light source is disposed on the circuit board and adapted to provide an illumination channel toward the navigation surface. The optical receiver is disposed adjacent to the illumination light source. An imaging channel of the optical receiver is substantially parallel to a planar normal vector of the navigation surface, and the optical receiver is adapted to identify features on the navigation surface within a range crossed by the imaging channel and the illumination channel for providing navigation information.

公开(公告)号：US20230152085A1

公开(公告)日：2023-05-18

申请号：US18097466

申请日：2023-01-16

Applicant: PixArt Imaging Inc.

Inventor： KEEN-HUN LEONG ,  TONG-SEN LIEW ,  CHING-GEAK CHAN

IPC: G01B11/04 ,  G01B21/04 ,  G06F3/03

CPC classification number: G01B11/046 ,  G01B21/047 ,  G06F3/0317

Abstract: There is provided an optical positioning system including a detected surface, an optical sensor, a register and a processor. The detected surface has interleaved bright regions and dark regions arranged in a transverse direction. The optical sensor captures an image frame of the detected surface within a field of view thereof and using a shutter time, wherein the detected surface and the optical sensor have a relative movement in the transverse direction. The register records a type of a last passed edge. The processor calculates a first position using a first algorithm upon the recorded last passed edge being a bright-to-dark edge and the field of view being aligned with one of the dark regions, and calculates a second position using a second algorithm, different from the first algorithm, upon the recorded last passed edge being a dark-to-bright edge and the field of view being aligned with the same one of the dark regions.

公开(公告)号：US11644554B2

公开(公告)日：2023-05-09

申请号：US16936777

申请日：2020-07-23

Applicant: PixArt Imaging Inc.

Inventor： Tso-Sheng Tsai ,  Yueh-Lin Chung ,  Shin-Lin Wang

IPC: G01S7/48 ,  G01S7/497 ,  G01S17/10 ,  G01S7/481 ,  G01S7/4865

CPC classification number: G01S7/497 ,  G01S7/4814 ,  G01S7/4816 ,  G01S7/4865 ,  G01S17/10

Abstract: There is provided a time of flight sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal without receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving the reflected light from the external object illuminated by the light source. The processor calculates deviation compensation and deviation correction associated with temperature variation according to the first output signal to accordingly calibrate a distance calculated according to the second output signal.

公开(公告)号：US20230139484A1

公开(公告)日：2023-05-04

申请号：US18088798

申请日：2022-12-27

Applicant: PixArt Imaging Inc.

Inventor： GUO-ZHEN WANG

IPC: B25J9/16 ,  A47L11/40 ,  B25J11/00 ,  A47L9/28

Abstract: There is provided an electronic device including a light source module, an image sensor and a processor. The light source module projects a first pattern and a second pattern toward a moving direction. The image sensor captures an image of the first pattern and an image of the second pattern. The processor calculates one-dimensional depth information according to the image of the first pattern and calculates two-dimensional depth information according to the image of the second pattern.

公开(公告)号：US11632502B2

公开(公告)日：2023-04-18

申请号：US17471260

申请日：2021-09-10

Applicant: PIXART IMAGING INC.

Inventor： En-Feng Hsu

IPC: H04N5/235

Abstract: There is provided an optical sensor that acquires a first image frame corresponding to a first flicker period and acquires a second image frame corresponding to a second flicker period. The optical sensor adds the first image frame to the second image frame to generate a sum of image frames for the motion detection. Or, the optical sensor respectively adds pixel data of every two pixels in neighboring rows of the first image frame and the second image frame to generate a low-resolution image frame for the motion detection.