公开(公告)号：US20230266297A1

公开(公告)日：2023-08-24

申请号：US17679037

申请日：2022-02-23

Applicant: PixArt Imaging Inc.

Inventor： Yung-Chang Lin ,  Che-Yen Kung ,  Jian-Cheng Liao ,  Hsiu-Ling Yeh

IPC: G01N33/49 ,  G01N21/35 ,  A61B5/1455

CPC classification number: G01N33/4925 ,  G01N21/35 ,  A61B5/14552

Abstract: An optical detection device is applied to an organism and includes a light emitting module, an optical detection module and an operation processor. The light emitting module includes a plurality of light emitters arranged along a first direction. The optical detection module includes a plurality of optical sensors arranged along a second direction and symmetrically relative to the light emitting module. The second direction is substantially different from the first direction. The optical sensors are substantially placed more outward from a center of the optical detection device than the light emitters. The operation processor is electrically connected to the optical detection module. The operation processor is adapted to analyze signal variation in the plurality of light emitters acquired by each of the plurality of optical sensors for determining a physiological feature of the organism.

公开(公告)号：US11734912B2

公开(公告)日：2023-08-22

申请号：US17308983

申请日：2021-05-05

Applicant: PixArt Imaging Inc.

Inventor： Keng Yeen Lye ,  Kevin Len-Li Lim

IPC: G06V10/60 ,  G06F3/041 ,  G06F3/03 ,  G06V10/75 ,  G06F18/24 ,  G06F3/0354 ,  G06V10/764 ,  G06V10/98

CPC classification number: G06V10/60 ,  G06F3/0321 ,  G06F3/03543 ,  G06F3/0418 ,  G06F18/24 ,  G06V10/751 ,  G06V10/764 ,  G06V10/993 ,  G06F3/0317

Abstract: A computer readable recording medium storing at least one program, wherein an image quality improvement method is performed when the program is executed. The image quality improvement method comprising: (a) classifying data units of a target image to normal data units and abnormal data units based on relations between brightness values of the data units and a classification parameter, wherein the classification parameter is related with an image quality of the target image or the brightness values of the data units; and (b) adjusting the brightness values of the abnormal data units based on an adjusting parameter to generate adjusted brightness values, such that differences between the adjusted brightness values and the brightness values of the normal data units are reduced. An optical navigation method using the image quality improvement method is also disclosed.

公开(公告)号：US20230262792A1

公开(公告)日：2023-08-17

申请号：US17673005

申请日：2022-02-16

Applicant: PIXART IMAGING INC. ,  AIROHA TECHNOLOGY CORP.

Inventor： Ping-Shun ZEUNG ,  Chih-Wei SUNG ,  Yu-Feng CHEN

IPC: H04W76/14 ,  H04W76/30 ,  H04W76/25 ,  H04R1/10

CPC classification number: H04W76/14 ,  H04W76/30 ,  H04W76/25 ,  H04R1/1016 ,  H04R1/1025 ,  H04R1/1041 ,  H04W4/80

Abstract: There is provided a wireless device including an earphone set and a charging cradle. The charging cradle is used as means for charging the earphone set. The charging cradle further records connection information of multiple external devices that have been BT connected to the charging cradle. The earphone set receives a connection command from the charging cradle to accordingly form an audio connection to one of the multiple external devices. The charging cradle is further used as a communication medium between the multiple external devices.

公开(公告)号：US11726599B2

公开(公告)日：2023-08-15

申请号：US17987900

申请日：2022-11-16

Applicant: PixArt Imaging Inc.

Inventor： Chi-Chieh Liao

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04144 ,  G06F3/0443 ,  G06F3/0446 ,  G06F3/04164

Abstract: There is provided a touch force sensor including a first drive electrode, a second drive electrode and a receiving electrode. The first drive electrode is used to form a first capacitance with the receiving electrode. The second drive electrode is used to form a second capacitance with the receiving electrode. The receiving electrode shields the first drive electrode such that when a conductor approaches the receiving electrode, only the second capacitance is changed but the first capacitance is not changed. The first capacitance is changed only when the conductor gives a force upon the receiving electrode.

公开(公告)号：US11715429B2

公开(公告)日：2023-08-01

申请号：US17699380

申请日：2022-03-21

Applicant: PixArt Imaging Inc.

Inventor： En-Feng Hsu ,  Meng-Huan Hsieh

IPC: G09G3/00 ,  G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/3648 ,  G09G2320/0626 ,  G09G2330/021 ,  G09G2360/144

Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.

公开(公告)号：US11703458B2

公开(公告)日：2023-07-18

申请号：US17393424

申请日：2021-08-04

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Hung-Ching Lai

IPC: G01N21/94 ,  G01N21/88 ,  B25J11/00 ,  B25J9/16

CPC classification number: G01N21/94 ,  B25J9/1697 ,  B25J11/0085 ,  G01N21/8806

Abstract: A detecting device for detecting liquid or colloid, comprising: a light emitting device, configured to emit first light, wherein a first angle between a first emitting direction of the first light and a surface when the detecting device is located on the surface, wherein the first angle is larger than 0° and smaller than 90°; an optical sensor, configured to detect first optical data generated based on the first light; and a processing circuit, configured to determine if the liquid or the colloid exists in a predetermined range of the detecting device based on the first optical data. An automatic cleaner applying the detecting device is also disclosed.

公开(公告)号：US20230224578A1

公开(公告)日：2023-07-13

申请号：US17574522

申请日：2022-01-12

Applicant: PixArt Imaging Inc.

Inventor： Zi Hao TAN

IPC: H04N5/232

CPC classification number: H04N5/23227

Abstract: An image sensing system control method comprising: (a) receiving a first polling from the control circuit by the image sensor at a first polling time; (b) triggering a first dummy read at a first dummy read time after the first polling time, to compute output motion delta occurs between the first polling time and the first dummy read time according to frames sensed by the image sensor between the first polling time and the first dummy read time; (c) receiving a second polling from the control circuit by the image sensor at a second polling time after the first dummy read time; and (d) outputting the output motion delta to the control circuit by the image sensor in a predetermined time range of the second polling time.

公开(公告)号：US20230221427A1

公开(公告)日：2023-07-13

申请号：US17574588

申请日：2022-01-13

Applicant: PixArt Imaging Inc.

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

IPC: G01S13/75 ,  G08B21/18 ,  G06K19/07

CPC classification number: G01S13/751 ,  G08B21/182 ,  G06K19/0723

Abstract: A navigation device applied to a wireless identification tag includes a movable signal transceiver and an operation processor. The movable signal transceiver is adapted to transmit a detection signal and receive an actuation signal relevant to the detection signal. The operation processor is electrically connected to the movable signal transceiver. The operation processor is adapted to analyze the actuation signal to acquire relative position between the movable signal transceiver and the wireless identification tag, and generate a motion parameter in accordance with the relative position for moving the movable signal transceiver.

公开(公告)号：US20230215020A1

公开(公告)日：2023-07-06

申请号：US18119843

申请日：2023-03-10

Applicant: PixArt Imaging Inc.

Inventor： Hung-Ching Lai

IPC: G06T7/246 ,  H04N23/56

CPC classification number: G06T7/246 ,  G06T7/248 ,  H04N23/56 ,  G06T2207/10016 ,  G06T2207/30224 ,  G06T2207/30261 ,  G06T2207/30248

Abstract: A speed detecting method, applied to a speed detecting apparatus comprising a distance computing apparatus and a speed computing apparatus, the speed detecting method comprising: (a) computing an object to be detected distance between the speed detecting apparatus and an objected to be detected via the distance computing apparatus; and (b) computing a moving speed of the object to be detected according to the object to be detected distance via the speed computing apparatus.

公开(公告)号：US11691264B2

公开(公告)日：2023-07-04

申请号：US16929232

申请日：2020-07-15

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Hui-Hsuan Chen

IPC: B25J9/00 ,  B25J9/16 ,  G06T7/70 ,  B25J11/00

CPC classification number: B25J9/0003 ,  B25J9/1676 ,  G06T7/70 ,  B25J11/0085

Abstract: There is provided a mobile robot that performs the obstacle avoidance, positioning and object recognition according to image frames captured by the same optical sensor. The mobile robot includes an optical sensor, a light emitting diode, a laser diode and a processor. The processor identifies an obstacle and a distance thereof according to image frames captured by the optical sensor when the laser diode is emitting light. The processor further performs the positioning and object recognition according to image frames captured by the optical sensor when the light emitting diode is emitting light.