公开(公告)号：US11457837B2

公开(公告)日：2022-10-04

申请号：US16386318

申请日：2019-04-17

Applicant: PIXART IMAGING INC.

Inventor： Sung-Han Wu

IPC: A61B5/18 ,  A61B5/11 ,  A61B5/00 ,  B60W40/08 ,  B60W50/14 ,  A61B5/22

Abstract: A direction control apparatus with a sensor, a method for determining a driver status using the driving control apparatus, and a system for determining the driver status are provided. The direction control apparatus includes at least a pressure sensor to sense a plurality of pressure values applied to multiple positions of the direction control apparatus. When the pressure values are received by a controller of the apparatus, the driver status can be determined according to a change of pressure values over time, or further a change of the positions where pressure is applied. The system can connect with an autopilot system and an alarm system of a vehicle via the controller. Therefore, the system incorporates an autopilot system and issues an alarm when the driver status is determined to be abnormal.

公开(公告)号：US20220311915A1

公开(公告)日：2022-09-29

申请号：US17841582

申请日：2022-06-15

Applicant: PIXART IMAGING INC.

Inventor： Yen-Hung WANG ,  Wen-Yen SU ,  Hui-Hsuan CHEN ,  Hung-Yu LAI

IPC: H04N5/225 ,  G05D1/02

Abstract: There is provided an optical engine for a navigation device including a first light source, a second light source, a lens, a carrier member and an image sensor. The carrier member has a light holder, a lens holder, an accommodation space and a tilted wall. The first light source is arranged on the light holder of the carrier member, and reflected light associated with the first light source penetrates through the lens to propagate to the image sensor inside the accommodation space. Reflected light associated with the second light source penetrates through the tilted wall of the carrier member to propagate to the image sensor.

公开(公告)号：US11456740B2

公开(公告)日：2022-09-27

申请号：US16930348

申请日：2020-07-16

Applicant: PixArt Imaging Inc.

Inventor： Sung-Han Wu

IPC: H03K17/96

Abstract: There is provided a touch detection circuit including a charging circuit, a discharging circuit, a counter and a processor. The charging circuit charges a detection capacitor within a charging interval using different currents. The discharging circuit discharges the detection capacitor within a discharging interval using different currents. The counter counts the charging interval and the discharging interval. The processor subtracts a baseline time from a counted charging time and a counted discharging time to cancel the noise interference.

公开(公告)号：US11455044B2

公开(公告)日：2022-09-27

申请号：US16909298

申请日：2020-06-23

Applicant: PixArt Imaging Inc.

Inventor： Sen-Huang Huang ,  Ming-Tsan Kao ,  En-Feng Hsu ,  Yu-Hao Huang ,  Nien-Tse Chen

IPC: G06F3/01 ,  G06V40/20 ,  H04N5/247 ,  G09G5/00

Abstract: The present invention provides a motion detecting system, which includes a light source module, a plurality of image sensors and a control unit. The light source module illuminates at least one object. The image sensors respectively detect the object under the light emitted by the light source module to generate a plurality of detection results. The control unit is coupled to the image sensors, and generates a control command according to the detection results.

公开(公告)号：US11453259B2

公开(公告)日：2022-09-27

申请号：US15885843

申请日：2018-02-01

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang ,  Chang-Sheng Chiu

IPC: B60C25/00 ,  G01B11/22 ,  B60Q9/00 ,  G01B11/04 ,  G01M17/02 ,  G01B11/25 ,  B60C11/24 ,  G01S17/04 ,  B60K28/10

Abstract: An object surface managing method comprising: (a) emitting detecting light to the groove via alight source; (b) receiving first reflected detecting light from the surface and second reflected detecting light from a bottom of the groove via a light sensor; and (c) calculating a groove depth of the groove according to the first reflected detecting light and the second reflected detecting light.

公开(公告)号：US20220268682A1

公开(公告)日：2022-08-25

申请号：US17740392

申请日：2022-05-10

Applicant: PixArt Imaging Inc.

Inventor： YEN-CHANG CHU ,  CHENG-NAN TSAI ,  CHIH-MING SUN

IPC: G01N15/06 ,  G08B29/18 ,  G08B17/107

Abstract: There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.

公开(公告)号：US11422025B2

公开(公告)日：2022-08-23

申请号：US17124332

申请日：2020-12-16

Applicant: PixArt Imaging Inc.

Inventor： Zi-Hao Tan ,  Joon-Chok Lee

IPC: G01J1/42 ,  G01J1/44

Abstract: There is provided an optical sensor including a photodiode, a wave converter, a pixel array and a processor. The photodiode detects ambient light flicker to generate sine waves. The wave converter converts the sine waves to square waves. The processor uses a sampling frequency to count the square waves, and identifies whether the ambient light flicker is well detected according to a counting value of each square wave and a counting value variation of multiple square waves within a count period to accordingly determine whether to adjust an acquiring phase of the image frame.

公开(公告)号：US11418729B2

公开(公告)日：2022-08-16

申请号：US17197355

申请日：2021-03-10

Applicant: PixArt Imaging Inc.

Inventor： Jung-Tai Lin ,  En-Feng Hsu

IPC: H04N5/33 ,  H04N5/235 ,  H04N5/232

Abstract: An image sensor including a pixel matrix and an opaque layer is provided. The pixel matrix includes a plurality of unblocked pixels, a plurality of first pixels and a plurality of second pixels. The opaque layer covers upon a first region, which is a part of each first pixel, and upon a second region, which is a part of each second pixel, but does not cover upon the unblocked pixels, wherein the first region and the second region are symmetrically arranged in a first direction, and uncovered regions of the first pixels and the second pixels are arranged to be larger at a pixel edge than at a pixel center.

公开(公告)号：US11412169B2

公开(公告)日：2022-08-09

申请号：US17069013

申请日：2020-10-13

Applicant: PixArt Imaging Inc.

Inventor： Wen-Han Yao

IPC: H04N5/378 ,  H04N5/376 ,  H04N5/235 ,  H01L27/148 ,  H01L27/146

Abstract: There is provided a pixel circuit including a first circuit and a second circuit. The first circuit is used to output a first voltage associated with exposure intensity. The second circuit is used to output a second voltage associated with exposure time interval. The processor multiples the first voltage to a ratio between a reference voltage and the second voltage to obtain an actual light intensity, wherein the reference voltage is a voltage value outputted by the second circuit of a dummy pixel.

公开(公告)号：US11409375B2

公开(公告)日：2022-08-09

申请号：US15854682

申请日：2017-12-26

Applicant: PixArt Imaging Inc.

Inventor： Tsung-Fa Wang

IPC: G06F3/03 ,  G06F3/0346 ,  G06F3/0354

Abstract: A method of adjusting an optical setting of an optical input device includes: determining a desired level of an intensity of captured reflected light reflected from a tracking surface; determining whether a surface changing event occurs; and adjusting an optical setting of the optical input device according to the desired level of the intensity of the captured reflected light if it is determined the surface changing event occurs.