公开(公告)号：US20150144768A1

公开(公告)日：2015-05-28

申请号：US14515936

申请日：2014-10-16

Applicant: PixArt Imaging Inc.

Inventor： Yu-Ju LEE

IPC: G01C21/20 ,  G06F1/32 ,  G09G5/08 ,  G01B11/14

CPC classification number: G09G5/08 ,  G06F1/3259 ,  G06F3/0317 ,  G09G2360/144 ,  Y02D10/155

Abstract: There is provided an optical navigation system including a light source, a first photosensitive unit, a second photosensitive unit, a control unit and a processing unit. The light source is configured to emit light of a predetermined wavelength. The first photosensitive unit is configured to receive reflected light of the predetermined wavelength reflected by a working surface. The second photosensitive unit is covered with a coating to block light of the predetermined wavelength. The control unit is configured to control the light source, the first photosensitive unit and the second photosensitive unit to expose both the first photosensitive unit and the second photosensitive unit when the light source is turned on. The processing unit is configured to read first image data and second image data respectively from the first photosensitive unit and the second photosensitive unit thereby identifying an ambient light mode or a liftoff mode.

Abstract translation: 提供了一种包括光源，第一感光单元，第二感光单元，控制单元和处理单元的光学导航系统。 光源被配置为发射预定波长的光。 第一光敏单元被配置为接收由工作表面反射的预定波长的反射光。 第二感光单元用涂层覆盖以阻挡预定波长的光。 控制单元被配置为当光源被接通时，控制光源，第一感光单元和第二感光单元以暴露第一感光单元和第二感光单元两者。 处理单元被配置为分别从第一感光单元和第二感光单元读取第一图像数据和第二图像数据，从而识别环境光模式或提升模式。

公开(公告)号：US20240362952A1

公开(公告)日：2024-10-31

申请号：US18308678

申请日：2023-04-28

Applicant: PIXART IMAGING INC.

Inventor： Tzung-Min SU ,  Yu-Ju LEE ,  Ren-Hau GU

IPC: G06V40/20 ,  G06F21/32 ,  G06V10/70 ,  G06V40/12

CPC classification number: G06V40/28 ,  G06F21/32 ,  G06V10/768 ,  G06V40/1365 ,  G06V40/1394

Abstract: There is provided an electronic device arranged to be unlocked using a fingerprint. The electronic device includes a touch pad, a processor and an operation system. The touch pad acquires fingerprint data within sequential multiple time intervals, respectively. The processor recognizes a fingerprint of each time interval according to the fingerprint data. Upon a sequence and an operating feature of multiple fingerprints matching a predetermined condition, the processor controls the operation system to unlock the electronic device.

公开(公告)号：US20140210725A1

公开(公告)日：2014-07-31

申请号：US14067632

申请日：2013-10-30

Applicant: PIXART IMAGING INC.

Inventor： Yu-Ju LEE ,  Tzu-Yu CHEN

IPC: G06F3/0354 ,  G06F3/03

CPC classification number: G06F3/03543 ,  G06F3/0317 ,  G06T7/223 ,  G06T2207/20008 ,  G06T2207/30168

Abstract: An optical navigation apparatus, an optical navigation method, and a non-transitory computer readable medium thereof are provided. The optical navigation apparatus includes a light source unit, an image sensing unit, and a processing unit. The processing unit is electrically connected to the light source unit and the image sensing unit. The light source unit provides a beam of light. The image sensing unit captures a first image at a first time instant when the light is projected onto a reflection surface. The processing unit calculates an image quality index of the first image and determines a matching block size between the first image and a second image according to the image quality index.

Abstract translation: 提供了一种光学导航装置，光学导航方法及其非暂时计算机可读介质。 光学导航装置包括光源单元，图像感测单元和处理单元。 处理单元电连接到光源单元和图像感测单元。 光源单元提供光束。 当光投射到反射表面上时，图像感测单元在第一时刻捕获第一图像。 处理单元计算第一图像的图像质量指数，并根据图像质量指数确定第一图像和第二图像之间的匹配块大小。