-
公开(公告)号：US20130129164A1
公开(公告)日：2013-05-23
申请号：US13683657
申请日：2012-11-21
Applicant: PIXART IMAGING INC.
Inventor： Ren-Hau GU , Ming-Tsan KAO , Sen-Huang HUANG
IPC: G06K9/00
CPC classification number: G06K9/00013 , G06K9/00885 , G06K9/00892 , G06K2009/00932
Abstract: An identity recognition system and method capture an image of a subject that is projected by light of different wavelengths, extract various biometric informations from the image, analyze and compare for each of the biometric informations to generate a matching score, and determine an identity for the subject according to all of the matching scores. The system and method have higher recognition accuracy, lower false acceptance rate, lower false rejection rate, and higher flexibility.
Abstract translation: 身份识别系统和方法捕获由不同波长的光投射的对象的图像，从图像中提取各种生物信息，分析和比较每个生物信息以产生匹配分数，并且确定 根据所有匹配分数进行主题。 系统和方法具有较高的识别精度，较低的误码率，较低的误拒率和较高的灵活性。
-
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
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：US20200004943A1
公开(公告)日：2020-01-02
申请号：US16563931
申请日：2019-09-09
Applicant: PixArt Imaging Inc.
Inventor： Ren-Hau GU , Chih-Hsin LIN , Tzung-Min SU , Yung-Chang LIN , Jian-Cheng LIAO , Chun-Chih CHEN
Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.
-
公开(公告)号：US20180271391A1
公开(公告)日：2018-09-27
申请号：US15996652
申请日：2018-06-04
Applicant: PixArt Imaging Inc.
Inventor： Chiung-Wen LIN , Wei-Ru HAN , Yang-Ming CHOU , Cheng-Nan TSAI , Ren-Hau GU , Chih-Yuan CHUANG
CPC classification number: A61B5/02427 , A61B5/742 , A61B5/7485 , A61B2562/046
Abstract: A physiological detection system including an array sensor and a processing unit is provided. The array sensor is configured to output array PPG signals. The processing unit is configured to construct a 3D energy distribution according to the array PPG signals to accordingly identify different microcirculation states.
-
25.发明申请公开(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
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.
-
Patent Agency Ranking
公开(公告)号：US20160345847A1
公开(公告)日：2016-12-01
申请号：US15231690
申请日：2016-08-08
Applicant: PIXART IMAGING INC.
Inventor： Ren-Hau GU , Hsin-Chia CHEN , Raman SAHGAL , Jung-Tai LIN
IPC: A61B5/024 , G06F3/03 , G06F3/0354 , A61B5/11 , G01C11/02
CPC classification number: A61B5/02427 , A61B5/02416 , A61B5/02438 , A61B5/1118 , G01C11/02 , G06F1/3259 , G06F3/011 , G06F3/014 , G06F3/015 , G06F3/0317 , G06F3/03543 , G06F3/03547 , G06F3/0383 , G06F2203/0338 , Y02D10/155
Abstract: A physiological detection device including a light source, an image sensor and a processor is provided. The light source illuminates a skin surface using a burst mode. The image sensor receives ejected light from skin tissues under the skin surface at a sampling frequency to successively generate image frames. The processor controls the light source and the image sensor, and calculates a physiological characteristic according to the image frames captured when the light source is illuminating light. The physiological detection device reduces the total power consumption by adopting the burst mode.
Abstract translation: 提供了包括光源，图像传感器和处理器的生理检测装置。 光源使用突发模式照亮皮肤表面。 图像传感器以采样频率从皮肤表面下的皮肤组织接收弹射光，以连续生成图像帧。 处理器控制光源和图像传感器，并且根据当光源照亮光时捕获的图像帧来计算生理特性。 生理检测装置采用突发模式来降低总功耗。
-
公开(公告)号：US20150193669A1
公开(公告)日：2015-07-09
申请号：US14629764
申请日：2015-02-24
Applicant: PIXART IMAGING INC.
Inventor： Ren-Hau GU , Ming-Tsan KAO , Sen-Huang HUANG
CPC classification number: G06K9/46 , G06K9/00013 , G06K9/00604 , G06K9/00892 , G06K9/6201 , G06K2009/00932 , G06T2207/30076 , H04N7/18
Abstract: A system and method based on hybrid biometric detection capture first images of a user that is projected by first light of different wavelengths, extract various biometric informations from the first images, analyze and compare for each of the biometric informations to generate a matching score, determine an identity for the user according to all of the matching scores, generate second images and PPG signals from dispensed second light from the user, generate a time and PPG variation signal and a space and PPG variation signal for each frame of the second images, convert the time and PPG variation signals into frequency domain signals, determine a reference frequency according to the space and PPG variation signals, retrieve energy of the frequency domain signals at the reference frequency, and establish a three-dimensional energy distribution from the retrieved energy.
Abstract translation: 基于混合生物特征检测的系统和方法捕获由不同波长的第一光投射的用户的第一图像，从第一图像中提取各种生物信息，分析和比较每个生物信息以产生匹配分数，确定 根据所有匹配分数的用户的身份，从分配的来自用户的第二光产生第二图像和PPG信号，为第二图像的每个帧生成时间和PPG变化信号以及空间和PPG变化信号，转换 将时间和PPG变化信号转换为频域信号，根据空间和PPG变化信号确定参考频率，检索参考频率下的频域信号的能量，并从检索到的能量建立三维能量分布。
-
公开(公告)号：US20140292657A1
公开(公告)日：2014-10-02
申请号：US14183620
申请日：2014-02-19
Applicant: PIXART IMAGING INC.
Inventor： Chun-Wei CHEN , Ren-Hau GU , Shih-Wei KUO
IPC: G06F3/0354
CPC classification number: G06F3/03543 , G06F3/0317 , G06F3/0383
Abstract: There is provided a displacement detection device including a light source, an image sensor and a control and processing unit. The light source is configured to illuminate a work surface. The image sensor is configured to receive reflected light from the work surface. The control and processing unit is configured to adjust a block size of comparison blocks according to a quality parameter.
Abstract translation: 提供了一种包括光源，图像传感器和控制和处理单元的位移检测装置。 光源被配置为照亮工作表面。 图像传感器被配置为接收来自工作表面的反射光。 控制和处理单元被配置为根据质量参数调整比较块的块大小。
-
公开(公告)号：US20130127714A1
公开(公告)日：2013-05-23
申请号：US13632327
申请日：2012-10-01
Applicant: PIXART IMAGING INC.
Inventor： Ren-Hau GU , Ming-Tsan KAO , Sen-Huang HUANG
CPC classification number: A61B5/6898 , A61B5/1128 , A61B5/14552 , A61B5/721 , G06F3/0317 , G06F2203/0338
Abstract: There is provided a user interface system including a slave device and a master device. The slave device provides light of two different wavelengths to illuminate a finger surface, receives reflected light from the finger surface to generate a plurality of image frames, calculates and outputs an image data associated with a predetermined number of the image frames. The master device calculates a contact status and a displacement of the finger surface and a physiological characteristic of a user according to the image data.
Abstract translation: 提供了包括从设备和主设备的用户界面系统。 从设备提供两种不同波长的光以照亮手指表面，接收来自手指表面的反射光以产生多个图像帧，计算并输出与预定数量的图像帧相关联的图像数据。 主装置根据图像数据计算手指表面的接触状态和位移以及用户的生理特征。
-
公开(公告)号：US20130113759A1
公开(公告)日：2013-05-09
申请号：US13632381
申请日：2012-10-01
Applicant: PixArt Imaging Inc.
Inventor： Ren-Hau GU , Yu-Hao HUANG , Hsin-Chia CHEN , Yen-Min CHANG
IPC: G06F3/042
CPC classification number: G06F3/0416 , G06F3/03547 , G06F3/0421
Abstract: There is provided a displacement detection device including a light source, an image sensor and a processing unit. The light source provides light to a finger with a light source parameter. The image sensor receives reflected light from the finger, outputs valid images when the light source is being turned on and outputs dark images when the light source is being turned off. The processing unit determines a contact status according to one of the dark images and one of the valid images, and calculates a displacement according to two of the valid images to accordingly adjust the light source parameter.
Abstract translation: 提供了一种包括光源，图像传感器和处理单元的位移检测装置。 光源为手指提供光源参数。 图像传感器从手指接收反射光，当光源打开时输出有效图像，并在光源关闭时输出暗影像。 处理单元根据暗图像和其中一个有效图像确定接触状态，并且根据两个有效图像计算位移，以相应地调整光源参数。
-
-
-
-
-
-
-
-
-
Search Results
30
records
(took 0.03 seconds)
