公开(公告)号：US20180164924A1

公开(公告)日：2018-06-14

申请号：US15893114

申请日：2018-02-09

Applicant: PixArt Imaging Inc.

Inventor： Sung-Han WU ,  Yu-Han CHEN ,  Ming-Hung TSAI ,  Meng-Lin YU ,  Hsin-Chia CHEN

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0418

Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.

公开(公告)号：US20160282996A1

公开(公告)日：2016-09-29

申请号：US15176687

申请日：2016-06-08

Applicant: PixArt Imaging Inc.

Inventor： Sung-Han WU ,  Yu-Han CHEN ,  Ming-Hung TSAI ,  Meng-Lin YU ,  Hsin-Chia CHEN

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0418

Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.

公开(公告)号：US20140118131A1

公开(公告)日：2014-05-01

申请号：US14054702

申请日：2013-10-15

Applicant: PixArt Imaging Inc.

Inventor： Liang-Chi CHIU ,  Yu-Han CHEN ,  Ming-Tsan KAO

IPC: B60Q9/00 ,  B60K28/06

CPC classification number: B60Q9/008 ,  B60K28/066 ,  B60W2540/26

Abstract: There is provided a monitoring and warning system for vehicles including a first image sensor, a second image sensor, a warning unit, an expression recognition unit and a sign recognition unit. The first image sensor captures a first image frame toward a driver seat direction. The second image sensor captures a second image frame toward a forward direction. The expression recognition unit recognizes a sleep expression according to the first image frame to accordingly control the warning unit to trigger a first warning. The sign recognition unit recognizes a stop sign according to the second image frame to accordingly control the warning unit to trigger a second warning.

Abstract translation: 提供了一种用于车辆的监视和警告系统，包括第一图像传感器，第二图像传感器，警告单元，表情识别单元和符号识别单元。 第一图像传感器朝向驾驶员座椅方向捕获第一图像帧。 第二图像传感器向前方捕获第二图像帧。 表情识别单元根据第一图像帧识别睡眠表达，从而相应地控制警告单元触发第一警告。 符号识别单元根据第二图像帧识别停止符号，以相应地控制警告单元触发第二警告。

公开(公告)号：US20250164659A1

公开(公告)日：2025-05-22

申请号：US18512250

申请日：2023-11-17

Applicant: PIXART IMAGING INC.

Inventor： Yu-Sheng LIN ,  Chin-Hua HU ,  Yu-Han CHEN

IPC: G01V3/08 ,  G06F3/02

Abstract: There is provided a capacitive sensing system including multiple sensor electrodes, an insulating layer and a single active shielding metal. The single active shielding metal has an overlapped region with each of the multiple sensor electrodes. The insulating layer is arranged between the single active shielding metal and the multiple sensor electrodes. When one of the multiple sensor electrodes is driven by a driving signal, the rest of the multiple sensor electrodes are grounded or receive an active shielding signal, and the single active shielding metal receives the active shielding signal.

公开(公告)号：US20140112554A1

公开(公告)日：2014-04-24

申请号：US14047682

申请日：2013-10-07

Applicant: PixArt Imaging Inc

Inventor： Liang-Chi CHIU ,  Yu-Han CHEN ,  Ming-Tsan KAO

IPC: G06K9/00

CPC classification number: G06K9/00302 ,  B60R25/25 ,  G06K9/00832 ,  G06K2209/27

Abstract: A user recognition and confirmation device includes an image sensing unit, a face recognition unit, a display unit and an expression recognition unit. The image sensing unit captures a first image frame and a second image frame. The face recognition unit is configured to recognize a user ID according to the first image frame. The display unit is configured to show ID information of the user ID. The expression recognition unit is configured to confirm a user expression according to the second image frame and output a confirm signal. There is further provided a user recognition and confirmation method and a central control system for vehicles.

Abstract translation: 用户识别和确认装置包括图像感测单元，人脸识别单元，显示单元和表情识别单元。 图像感测单元捕获第一图像帧和第二图像帧。 面部识别单元被配置为根据第一图像帧识别用户ID。 显示单元被配置为显示用户ID的ID信息。 表情识别单元被配置为根据第二图像帧确认用户表达并输出确认信号。 还提供了用户识别和确认方法以及用于车辆的中央控制系统。

公开(公告)号：US20190324572A1

公开(公告)日：2019-10-24

申请号：US15957726

申请日：2018-04-19

Applicant: PixArt Imaging Inc.

Inventor： Kok-Siang TAN ,  Yu-Han CHEN ,  Meng-Lin YU ,  Kei-Tee TIEW

IPC: G06F3/044

Abstract: There is provided a parallel sensing touch control device including a capacitive sensor array processed by differential unit. In one detection interval, the device is concurrently conducting more than one sensing electrode of the capacitive sensor array so as to reduce a scanning interval of the capacitive sensor array. The differential unit performs a differential operation on detected signals to cancel out common mode noise.

公开(公告)号：US20180307365A1

公开(公告)日：2018-10-25

申请号：US15877933

申请日：2018-01-23

Applicant: PixArt Imaging Inc.

Inventor： Yu-Han CHEN ,  Han-Shu LIN ,  Yi-Hsien KO

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04104 ,  G06F2203/04105

Abstract: A coordinate detection device including a force detection device and a processor is provided. The force detection device includes a plurality of force sensors arranged in a matrix. Each of the force sensors is configured to output a force signal representing a force value. The processor receives the force signals from the force sensors, and calculates a touch position according to the force signals.

公开(公告)号：US20180107334A1

公开(公告)日：2018-04-19

申请号：US15846608

申请日：2017-12-19

Applicant: PixArt Imaging Inc.

Inventor： Fu-Chen CHEN ,  Ming-Tsan KAO ,  Yu-Han CHEN

IPC: G06F3/041 ,  G06F1/32 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F1/3262 ,  G06F3/044 ,  Y02D50/20

Abstract: There is provided a capacitive touch device including a controlling and processing circuit and a touch panel. The touch panel has a plurality of detection cells arranged in matrix. The controlling and processing circuit is configured to input a drive signal to the detection cells of the touch panel and read measurement data from the detection cells for post-processing, wherein the controlling and processing circuit reads a first sampling number of the measurement data of the detection cells in a normal mode and a second sampling number of the measurement data of the detection cells in a sleep mode, and the second sampling number is lower than the first sampling number.