-
公开(公告)号：US20180228442A1
公开(公告)日：2018-08-16
申请号：US15955000
申请日：2018-04-17
Applicant: PixArt Imaging Inc.
Inventor： CHIH-HSIN LIN , Ren-Hau GU
CPC classification number: A61B5/721 , A61B5/02416 , A61B5/02438 , A61B5/725 , A61B5/7257
Abstract: A heart rate detection module including a PPG measuring device, a motion sensor and a processing unit is provided. The PPG measuring device is configured to detect a skin surface in a detection period to output a PPG signal. The motion sensor is configured to output an acceleration signal corresponding to the detection period. The processing unit is configured to respectively convert the PPG signal and the acceleration signal to first frequency domain information and second frequency domain information, determine a denoising parameter according to a maximum spectrum peak value of the second frequency domain information to denoise the first frequency domain information, and calculate a heart rate according to a maximum spectrum peak value of the denoised first frequency domain information.
-
2.发明申请HOST OF PHYSIOLOGICAL DETECTION SYSTEM AND PHYSIOLOGICAL DETECTION DEVICE WITH HIGH ACCURACY 审中-公开生理检测系统和高精度生理检测装置公开(公告)号：US20160120422A1
公开(公告)日：2016-05-05
申请号：US14728051
申请日：2015-06-02
Applicant: PIXART IMAGING INC.
Inventor： REN-HAU GU , CHIH-HSIN LIN , YUNG-CHANG LIN , CHIEN-LUNG LIAO
CPC classification number: A61B5/7203 , A61B5/002 , A61B5/02416 , A61B5/02438 , A61B5/14551 , A61B2560/0271 , A61B2562/085 , G06F19/00
Abstract: There is provided a physiological detection system including a physiological detection device and a host. The physiological detection device is configured to transmit a physiological data series to the host according to a local oscillation frequency. The host is configured to calculate a physiological value according to the physiological data series and determine a correction parameter according to a receiving data parameter and a reference data parameter, wherein the correction parameter is configured to correct the physiological value, process the physiological data series or adjust the local oscillation frequency of the physiological detection device.
Abstract translation: 提供了包括生理检测装置和宿主的生理检测系统。 生理检测装置被配置为根据本地振荡频率向主机发送生理数据序列。 主机被配置为根据生理数据序列计算生理值，并根据接收数据参数和参考数据参数确定校正参数，其中校正参数被配置为校正生理值，处理生理数据序列或 调整生理检测装置的本地振荡频率。
-
公开(公告)号：US20130229388A1
公开(公告)日：2013-09-05
申请号：US13865275
申请日：2013-04-18
Applicant: PIXART IMAGING INC.
Inventor： CHENG-NAN TSAI , TZUNG-MIN SU , CHIH-HSIN LIN
IPC: G06F3/042
CPC classification number: G06F3/042 , G06F3/0416 , G06F3/0428 , G06F2203/04104 , G06F2203/04108
Abstract: An apparatus and a method for acquiring object image of a pointer are provided. The apparatus is suitable for an optical touch system and is used for acquiring an object image of a pointer when the pointer interacts with a touch surface of the optical touch system. The apparatus includes an image sensor and a processing circuit. The image sensor is used for acquiring an image of the touch surface. When the pointer approaches the touch surface, the processing circuit compares at least a part of the information of a sensed image with a threshold value, so as to determine a comparison range. Then, the processing circuit determines another threshold value according to the image information in the comparison range. Afterwards, the processing circuit compares the image information in the comparison range with the aforementioned another threshold value, so as to acquire an object image of the pointer.
Abstract translation: 提供了一种用于获取指针的对象图像的装置和方法。 该装置适用于光学触摸系统，并且当指针与光学触摸系统的触摸面相互作用时用于获取指针的对象图像。 该装置包括图像传感器和处理电路。 图像传感器用于获取触摸表面的图像。 当指示器接近触摸表面时，处理电路将感测图像的信息的至少一部分与阈值进行比较，以便确定比较范围。 然后，处理电路根据比较范围内的图像信息来确定另一阈值。 之后，处理电路将比较范围内的图像信息与上述另一个阈值进行比较，以获取指针的对象图像。
-
4.发明申请公开(公告)号：US20150253934A1
公开(公告)日：2015-09-10
申请号：US14615670
申请日：2015-02-06
Applicant: PIXART IMAGING INC.
Inventor： YU-CHIA LIN , CHUAN-CHING LIN , YU-HSIN LIN , HAN-PING CHENG , TZUNG-MIN SU , CHIH-HSIN LIN , HSIN-CHI CHENG , CHUN-SHENG LIN , YU-HSIANG HUANG , KUAN-HSU CHEN , CHUN-YI LU
IPC: G06F3/042
CPC classification number: G06F3/0428 , G06F3/0418
Abstract: The present disclosure provides an object detection method including: pre-storing a lookup table of touch reference values, wherein the lookup table of touch reference values records a plurality of touch reference values associated with image positions of a plurality of calibration object images formed in calibration images captured by a first image sensor; capturing a first image, wherein the first image has at least an object image corresponding to a pointer formed therein; generating a first light distribution curve according to the first image; defining a first detection region in the first light distribution curve; obtaining at least one touch reference value associated with the object image using the lookup table of touch reference values; comparing at least one brightness value within the first detection region of the first light distribution curve with the at least one touch reference value obtained.
Abstract translation: 本公开提供一种对象检测方法，包括：预存储触摸参考值的查找表，其中所述触摸参考值的查找表记录与校准中形成的多个校准对象图像的图像位置相关联的多个触摸参考值 由第一图像传感器拍摄的图像; 拍摄第一图像，其中所述第一图像至少具有与其中形成的指针相对应的对象图像; 根据第一图像生成第一光分布曲线; 在第一光分布曲线中限定第一检测区域; 使用所述触摸参考值的查找表获得与所述对象图像相关联的至少一个触摸参考值; 将第一光分布曲线的第一检测区域内的至少一个亮度值与所获得的至少一个触摸参考值进行比较。
-
公开(公告)号：US20150153904A1
公开(公告)日：2015-06-04
申请号：US14551742
申请日：2014-11-24
Applicant: PIXART IMAGING INC.
Inventor： HAN-PING CHENG , TZUNG-MIN SU , CHIH-HSIN LIN
CPC classification number: G06F3/0421 , G06F3/0418 , G06K9/00389
Abstract: There is provided a processing method of an object image for an optical touch system includes the steps of: capturing, using a first image sensor, a first image frame containing a first object image; capturing, using a second image sensor, a second image frame containing a second object image; generating a polygon image according to the first image frame and the second image frame; and determining a short axis of the polygon image and at least one object information accordingly.
Abstract translation: 提供了一种用于光学触摸系统的对象图像的处理方法，包括以下步骤：使用第一图像传感器捕获包含第一对象图像的第一图像帧; 使用第二图像传感器捕获包含第二对象图像的第二图像帧; 根据第一图像帧和第二图像帧生成多边形图像; 并且相应地确定多边形图像的短轴和至少一个对象信息。
-
Patent Agency Ranking
公开(公告)号：US20130271429A1
公开(公告)日：2013-10-17
申请号：US13912192
申请日：2013-06-06
Applicant: Pixart Imaging Inc.
Inventor： TZUNG-MIN SU , CHIH-HSIN LIN , MING-TSAN KAO
IPC: G06F3/042
CPC classification number: G06F3/0421 , G06F3/0416 , G06F3/0428 , G06F2203/04104 , G06F2203/04106
Abstract: A touch-control system adapted to be used with a plurality of pointers is provided. The touch-control system includes a touch-control panel, a first pointer sensing module, a second pointer sensing module and a processing circuit. The first pointer sensing module is configured to sense a first set of image information of the pointers and accordingly calculate a first candidate coordinate group of the pointers. The second pointer sensing module is configured to sense a second set of image information of the pointers. The processing circuit is electrically coupled to the first and second pointer sensing modules and configured to select, according to the second set of image information, two or more coordinate positions in the first candidate coordinate group to as actual coordinate positions of the pointers.
Abstract translation: 提供一种适于与多个指针一起使用的触摸控制系统。 触摸控制系统包括触摸控制面板，第一指针感测模块，第二指针感测模块和处理电路。 第一指针感测模块被配置为感测指针的第一组图像信息，并且因此计算指针的第一候选坐标组。 第二指针感测模块被配置为感测指针的第二组图像信息。 处理电路电耦合到第一和第二指示器感测模块，并且被配置为根据第二组图像信息将第一候选坐标组中的两个或更多个坐标位置选择为指针的实际坐标位置。
-
7.发明申请公开(公告)号：US20190239816A1
公开(公告)日：2019-08-08
申请号：US16385676
申请日：2019-04-16
Applicant: PixArt Imaging Inc.
Inventor： REN-HAU GU , CHIH-HSIN LIN , YUNG-CHANG LIN , CHIEN-LUNG LIAO
IPC: A61B5/00 , A61B5/1455 , A61B5/024
CPC classification number: A61B5/7203 , A61B5/002 , A61B5/02416 , A61B5/02438 , A61B5/14551 , A61B2560/0271 , A61B2562/085
Abstract: There is provided a physiological detection system including a physiological detection device and a host. The physiological detection device is configured to transmit a physiological data series to the host according to a local oscillation frequency. The host is configured to calculate a physiological value according to the physiological data series and determine a correction parameter according to a receiving data parameter and a reference data parameter, wherein the correction parameter is configured to correct the physiological value, process the physiological data series or adjust the local oscillation frequency of the physiological detection device.
-
公开(公告)号：US20150212652A1
公开(公告)日：2015-07-30
申请号：US14567178
申请日：2014-12-11
Applicant: PIXART IMAGING INC.
Inventor： YU-CHIA LIN , CHIH-HSIN LIN
CPC classification number: G06F3/0421 , G06K9/00355 , G06K9/2027 , G06K9/4661
Abstract: The present disclosure provides an optical touch system and an object analyzation method thereof. The optical touch system includes a panel and an image sensing apparatus installed thereon. The object analyzation method includes the following steps: capturing a first image across a touch surface of the panel with an image sensing apparatus, wherein the first image has an object image formed corresponding to the position of a pointer on the touch surface; defining an image window that corresponds to the image position of the object image in the first image captured; determining whether the pointer is touching the touch surface or hovering over the touch surface by analyzing the brightness difference among the plurality of pixels in the image window.
Abstract translation: 本公开提供了一种光学触摸系统及其对象分析方法。 光学触摸系统包括安装在其上的面板和图像感测装置。 对象分析方法包括以下步骤：利用图像感测装置跨越面板的触摸面捕获第一图像，其中第一图像具有对应于指示体在触摸表面上的位置形成的对象图像; 定义对应于所拍摄的第一图像中的对象图像的图像位置的图像窗口; 通过分析图像窗口中的多个像素之间的亮度差来确定指示器是触摸触摸表面还是在触摸表面上盘旋。
-
公开(公告)号：US20200242226A1
公开(公告)日：2020-07-30
申请号：US16850753
申请日：2020-04-16
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：US20200029909A1
公开(公告)日：2020-01-30
申请号：US16595006
申请日：2019-10-07
Applicant: PixArt Imaging Inc.
Inventor： REN-HAU GU , YEN-MIN CHANG , MING-CHANG LI , CHIH-HSIN LIN
Abstract: There is provided a system architecture including a PPG hardware module and a MEMS hardware module. The PPG hardware module processes PPG raw data, which is generally composed of analog signals or digital signals. The PPG hardware module filters the raw data for later digital calculation to, for example, find out frequency signals with higher peak values. The PPG hardware module then outputs the selected frequency signals to an MCU for heart rate calculation. The MEMS hardware module receives MEMS raw data from a motion detector made of MEMS elements. The MEMS raw data represents motion status of a user that could possibly affect the heart rate determination result. The MEMS hardware module filters the raw data for later digital calculation to find out frequency signals with higher peak values caused by motion.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.016 seconds)
