公开(公告)号：US20230393407A1

公开(公告)日：2023-12-07

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 ,  G06F3/03543 ,  G06F3/0304

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：US20230367859A1

公开(公告)日：2023-11-16

申请号：US18222008

申请日：2023-07-14

Applicant: PixArt Imaging Inc.

Inventor： YEN-MIN CHANG

IPC: G06F21/32 ,  A61B5/1172 ,  A61B5/117 ,  A61B5/1171 ,  G06V40/70

CPC classification number: G06F21/32 ,  A61B5/1172 ,  A61B5/117 ,  A61B5/1176 ,  G06V40/70 ,  G06V40/12

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：US20230366991A1

公开(公告)日：2023-11-16

申请号：US17740371

申请日：2022-05-10

Applicant: PixArt Imaging Inc.

Inventor： Yu-Wei Wang

IPC: G01S7/4863 ,  H01L31/107 ,  G01S17/10

CPC classification number: G01S7/4863 ,  H01L31/107 ,  G01S17/10 ,  H01L27/14643

Abstract: A photodiode, comprising: a first photodiode, comprising a p type substrate and a signal output region; a positive electric field providing structure, provided in the P type substrate, configured to receive a positive voltage to provide a positive electric field according to the positive voltage to attract electrons in the P type substrate; wherein an avalanche region is formed when the positive voltage is larger than a threshold voltage, thereby a current path is formed between the signal output region and the positive electric field providing structure. The present invention also discloses an optical sensor comprising pixels with different light sensitivities.

公开(公告)号：US20230366730A1

公开(公告)日：2023-11-16

申请号：US18223562

申请日：2023-07-19

Applicant: PIXART IMAGING INC.

Inventor： SAI MUN LEE ,  CHEE PIN T'NG

IPC: G01J1/04 ,  H05K1/18

CPC classification number: G01J1/0407 ,  H05K1/183 ,  H05K2201/10106 ,  H05K2201/10151 ,  H05K2201/10719

Abstract: The invention provides an optical sensor package. The optical sensor package includes: a substrate; a sensor disposed on the substrate; a glass cover disposed directly on the sensor; and a cap disposed on the substrate comprised of a solid perimeter surrounding the sensor and a ceiling having a cut-out section above the glass cover. The thickness of the cap is 0.20 mm.

公开(公告)号：US20230353902A1

公开(公告)日：2023-11-02

申请号：US18350905

申请日：2023-07-12

Applicant: PIXART IMAGING INC.

Inventor： Ren-Chieh LIU

IPC: H04N25/768

CPC classification number: H04N25/768

Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor generates image frames using pixels having different sensing ability for a processor to perform image combination.

公开(公告)号：US11785359B2

公开(公告)日：2023-10-10

申请号：US18097207

申请日：2023-01-14

Applicant: PixArt Imaging Inc.

Inventor： Joon-Chok Lee ,  Kevin Len-Li Lim

IPC: H04N25/67 ,  G06F3/0354 ,  G06T5/20

CPC classification number: H04N25/67 ,  G06F3/0354 ,  G06T5/20

Abstract: There is provided an optical navigation device including an image sensor and a processing unit. The image sensor outputs successive image frames. The processing unit calculates a contamination level and a motion signal based on filtered image frames, and determines whether to update a fixed pattern noise (FPN) stored in a frame buffer according to a level of FPN subtraction, the calculated contamination level and the calculated motion signal to optimize the update of the fixed pattern noise.

公开(公告)号：US20230309930A1

公开(公告)日：2023-10-05

申请号：US18200561

申请日：2023-05-22

Applicant: PIXART IMAGING INC.

Inventor： Ren-Hau GU ,  Chih-Hsin LIN

IPC: A61B5/00 ,  A61B5/024

CPC classification number: A61B5/7207 ,  A61B5/0006 ,  A61B5/02416 ,  A61B5/0064 ,  A61B5/02438 ,  A61M2205/3303 ,  A61B5/0245

Abstract: There is provided a physiological detection device including a white light source, a molding and a pixel array. The white light source is configured to emit white light having a color temperature between 2800K and 3200K. The molding is formed upon the white light source and configured to constrain an emission angle of the white light between 60 and 80 degrees. The pixel array is covered by a filter layer having a passband between 570 nm and 620 nm configured to filter the white light.

公开(公告)号：US20230309216A1

公开(公告)日：2023-09-28

申请号：US17701642

申请日：2022-03-22

Applicant: PixArt Imaging Inc.

Inventor： Wan Piang LIM ,  Sai Mun LEE

IPC: H05K1/02 ,  H05K3/04

CPC classification number: H05K1/0274 ,  H05K3/041 ,  H05K2201/10121 ,  H05K2201/10151

Abstract: An optical package includes: a Printed Circuit Board including a plurality of cut-out sections; a lens, including a first plurality of protrusions corresponding respectively to the plurality of cut-out sections, wherein when the lens is placed under the PCB, the protrusions will pass through the cut-out sections; and a sensor for attaching on to the lens and the PCB. The first plurality of protrusions has a shape from the group including: snap features, guide posts and guide posts with tight-fit ribs.

公开(公告)号：US20230301479A1

公开(公告)日：2023-09-28

申请号：US18197739

申请日：2023-05-16

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Ting-Yang Chang

IPC: A47L9/28 ,  A47L11/40 ,  G01B11/02 ,  G05D1/02 ,  A47L9/00

CPC classification number: A47L9/2826 ,  A47L9/009 ,  A47L11/4011 ,  A47L11/4061 ,  G01B11/02 ,  G05D1/0238 ,  A47L2201/04 ,  A47L2201/06

Abstract: A robot cleaner comprises a first light source, an optical sensor, a processing circuit and a second light source. The first light source emits first light. The optical sensor senses first optical data generated according to the first light. The processing circuit computes a height or an overhang height of an obstacle based on the first optical data. The second light source emits second light. The optical sensor senses second optical data generated according to the second light. The processing circuit determines whether the obstacle exists in the predetermined region or not based on the second optical data.

公开(公告)号：US20230300490A1

公开(公告)日：2023-09-21

申请号：US18202964

申请日：2023-05-29

Applicant: PIXART IMAGING INC.

Inventor： Ren-Chieh LIU ,  Yi-Cheng CHIU

IPC: H04N25/75 ,  H04N25/77 ,  H04N25/589 ,  H04N25/767 ,  H04N25/771 ,  H04N25/78

CPC classification number: H04N25/75 ,  H04N25/77 ,  H04N25/589 ,  H04N25/767 ,  H04N25/771 ,  H04N25/78

Abstract: There is provided a pixel circuit capable of outputting time difference data and image data, and including an image circuit and a difference circuit. The image circuit is used to record and output detected light energy of a first interval as the image data. The difference circuit is used to record and output a variation of detected light energy between the first interval and a second interval as the time difference data. The pixel circuit selects to output at least one of the time difference data and the image data.