公开(公告)号：US20230083218A1

公开(公告)日：2023-03-16

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.

公开(公告)号：US20190156104A1

公开(公告)日：2019-05-23

申请号：US15887318

申请日：2018-02-02

Applicant: PIXART IMAGING INC.

Inventor： En-Feng HSU ,  Shu-Sian YANG ,  Yi-Hsien KO

IPC: G06K9/00

Abstract: There is provided an encoding and decoding method and an information recognition device using the same. A code block includes a center coding region and a peripheral coding region arranged around the center coding region. The encoding and decoding method uses the feature of at least one microdot included in the center coding region as codes. The encoding and decoding method uses the feature of at least one microdot included in the peripheral coding region as codes. The encoding and decoding method uses the relative feature between the center coding region and the peripheral coding region as codes. The information recognition device compares the read feature with pre-stored features to decode information such as position codes, object codes, parameter codes and control codes.

公开(公告)号：US20170094153A1

公开(公告)日：2017-03-30

申请号：US15374499

申请日：2016-12-09

Applicant: PIXART IMAGING INC.

Inventor： Guo-Zhen WANG ,  Ren-Hau GU ,  En-Feng HSU

IPC: H04N5/232 ,  G06K7/10 ,  G02B7/36 ,  G06K7/14 ,  H04N5/243 ,  G06K9/00

CPC classification number: H04N5/23212 ,  G02B3/0006 ,  G02B7/28 ,  G02B7/365 ,  G06K7/10722 ,  G06K7/1417 ,  G06K9/00255 ,  H04N5/3696 ,  H04N13/218 ,  H04N13/229 ,  H04N13/232 ,  H04N13/257 ,  H04N2013/0081

Abstract: An imaging device including a pixel matrix and a processor is provided. The pixel matrix includes a plurality of phase detection pixels and a plurality of regular pixels. The processor performs autofocusing according to pixel data of the phase detection pixels, and determines an operating resolution of the regular pixels according to autofocused pixel data of the phase detection pixels, wherein the phase detection pixels are always-on pixels and the regular pixels are selectively turned on after the autofocusing is accomplished.

公开(公告)号：US20170064219A1

公开(公告)日：2017-03-02

申请号：US15189189

申请日：2016-06-22

Applicant: PIXART IMAGING INC.

Inventor： Jung-Tai LIN ,  En-Feng HSU

IPC: H04N5/33 ,  H04N5/235 ,  H04N5/243

CPC classification number: H04N5/33 ,  H04N5/23245 ,  H04N5/2351 ,  H04N5/2354

Abstract: An imaging device including a condenser lens and an image sensor is provided. The image sensor is configured to sense light penetrating the condenser lens and includes a pixel matrix, an opaque layer, a plurality of microlenses and an infrared filter layer. The pixel matrix includes a plurality of infrared pixels, a plurality of first pixels and a plurality of second pixels. The opaque layer covers upon a first region of the first pixels and a second region of the second pixels, wherein the first region and the second region are mirror- symmetrically arranged in a first direction. The plurality of microlenses is arranged upon the pixel matrix. The infrared filter layer covers upon the infrared pixels.

Abstract translation: 提供了包括聚光透镜和图像传感器的成像装置。 图像传感器被配置为感测穿透聚光透镜的光，并且包括像素矩阵，不透明层，多个微透镜和红外滤光层。 像素矩阵包括多个红外像素，多个第一像素和多个第二像素。 不透明层覆盖在第一像素的第一区域和第二像素的第二区域上，其中第一区域和第二区域在第一方向上被镜像对称地布置。 多个微透镜被布置在像素矩阵上。 红外滤光层覆盖红外像素。

公开(公告)号：US20160370859A1

公开(公告)日：2016-12-22

申请号：US15253503

申请日：2016-08-31

Applicant: PIXART IMAGING INC.

Inventor： Yu-Hao HUANG ,  Ming-Tsan KAO ,  Yi-Fang LEE ,  En-Feng HSU ,  Meng-Huan HSIEH ,  Nien-Tse CHEN

IPC: G06F3/01 ,  H04N5/235 ,  G06K9/00

CPC classification number: G06K9/00604 ,  G06F3/013 ,  H04N5/2354

Abstract: There is provided a pupil tracking device including an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball alternatively in a first brightness value and a second brightness value. The image sensor captures a first brightness image corresponding to the first brightness value and a second brightness image corresponding to the second brightness value. The processing unit identifies a brightest region at corresponding positions of the first brightness image and the second brightness image as an active light image.

Abstract translation: 提供了一种包括主动光源，图像传感器和处理单元的光瞳跟踪装置。 主动光源以第一亮度值和第二亮度值交替地向眼球发光。 图像传感器捕获对应于第一亮度值的第一亮度图像和对应于第二亮度值的第二亮度图像。 处理单元将第一亮度图像和第二亮度图像的相应位置处的最亮区域识别为活动光图像。

公开(公告)号：US20140204046A1

公开(公告)日：2014-07-24

申请号：US13746883

申请日：2013-01-22

Applicant: PIXART IMAGING INC.

Inventor： En-Feng HSU ,  Ken CRANDALL ,  Hsin-Chia CHEN ,  Ming-Tsan KAO

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: There is provided a capacitive touch sensing device including a sensing element, a drive unit, a detection circuit and a processing unit. The sensing element has a first electrode and a second electrode configured to form a coupling capacitance therebetween. The drive unit is configured to input a drive signal to the sensing element. The detection circuit is configured to detect a detection signal coupled to the second electrode from the drive signal through the coupling capacitance and to modulate the detection signal respectively with two signals to generate a two-dimensional detection vector. The processing unit identifies a touch event according to the two-dimensional detection vector.

Abstract translation: 提供了包括感测元件，驱动单元，检测电路和处理单元的电容式触摸感测装置。 感测元件具有第一电极和第二电极，其被配置为在它们之间形成耦合电容。 驱动单元被配置为向感测元件输入驱动信号。 检测电路被配置为通过耦合电容从驱动信号检测耦合到第二电极的检测信号，并分别用两个信号调制检测信号以产生二维检测向量。 处理单元根据二维检测向量来识别触摸事件。

公开(公告)号：US20140022371A1

公开(公告)日：2014-01-23

申请号：US13934311

申请日：2013-07-03

Applicant: PixArt Imaging Inc.

Inventor： Yu-Hao HUANG ,  Yi-Fang LEE ,  Ming-Tsan KAO ,  Meng-Huan HSIEH ,  En-Feng HSU ,  Nien-Tse CHEN

IPC: H04N7/18

CPC classification number: H04N7/18 ,  G02B27/0093 ,  G06F3/013 ,  G06K9/00597

Abstract: A pupil detection device includes an active light source, an image sensor and a processing unit. The active light source emits light toward an eyeball. The image sensor captures at least one image frame of the eyeball to be served as an image to be identified. The processing unit is configured to calculate a minimum gray value in the image to be identified and to identify a plurality of pixels surrounding the minimum gray value and having gray values within a gray value range as a pupil area.

Abstract translation: 瞳孔检测装置包括主动光源，图像传感器和处理单元。 主动光源向眼球发光。 图像传感器捕获眼球的至少一个图像帧作为要识别的图像。 处理单元被配置为计算要识别的图像中的最小灰度值，并且识别周围最小灰度值的多个像素，并且具有作为瞳孔区域的灰度值范围内的灰度值。