公开(公告)号：US20200163551A1

公开(公告)日：2020-05-28

申请号：US16202022

申请日：2018-11-27

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai

IPC: A61B5/00

Abstract: An optical detection device for physiological characteristic identification includes a substrate, a light source and an optical receiver. The light source includes a plurality of first lighting units and a plurality of second lighting units symmetrically arranged on the substrate. The optical receiver is disposed on the substrate and adapted to analyze optical signals emitted by the light source for acquiring a result of the physiological characteristic identification.

公开(公告)号：US10168220B2

公开(公告)日：2019-01-01

申请号：US15172983

申请日：2016-06-03

Applicant: PIXART IMAGING INC.

Inventor： Chih-Ming Sun ,  Ming-Han Tsai ,  Cheng-Nan Tsai

IPC: G01J5/02 ,  G01J5/04 ,  H04N5/33 ,  G01J5/06 ,  H04N5/225 ,  B81B7/00

Abstract: A wearable device includes a case and a far infrared temperature sensing device. The case has a first opening. The far infrared temperature sensing device is disposed inside the case of the wearable device. The far infrared temperature sensing device includes an assembly structure, a sensor chip, a filter structure, and a metal shielding structure. The assembly structure has an accommodating space and a top opening. The sensor chip is disposed in the accommodating space of the assembly structure. The filter structure is disposed above the sensor chip. The metal shielding structure is disposed above the sensor chip, and has a second opening to expose the filter structure. The first and second openings are communicated to cooperatively define a through hole.

公开(公告)号：US20180360382A1

公开(公告)日：2018-12-20

申请号：US15626166

申请日：2017-06-18

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455

Abstract: An optical measurement device with pressure feedback function includes an optical detecting module and a stretchable connective belt. The optical detecting module is adapted to output at least one optical detecting signal to detect pressure applied on an object. The stretchable connective belt is assembled with the optical detecting module and utilized to tie the optical detecting module on the object, and the stretchable connective belt is deformed to vary the pressure generated by the optical detecting module.

公开(公告)号：US10039453B2

公开(公告)日：2018-08-07

申请号：US14720845

申请日：2015-05-25

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai ,  Hung-Ching Lai ,  Chih-Yuan Chuang ,  Hung-Yu Lai ,  Yung-Chang Lin ,  Yi-Min Liu ,  Ren-Hau Gu

IPC: A61B5/18 ,  A61B5/00

Abstract: An optical detecting module with waterproofing function can be installed on a housing of a wearable device and includes an optical detecting component, a light source and a packaging structure. The light source is disposed by the optical detecting component, and the packaging structure provides the waterproofing function to the optical detecting component and the light source. The packaging structure includes a main body, a light emitting unit, alight incoming unit and a waterproofing component. The main body covers the optical detecting component and the light source. The light emitting unit and the light incoming unit are disposed on the main body and respectively face the light source and the optical detecting component. The waterproofing component is filled into a gap formed between the main body and the housing, to prevent moisture from leaking into the gap to rust terminals of the optical detecting component and the light source.

公开(公告)号：US09582118B2

公开(公告)日：2017-02-28

申请号：US15000300

申请日：2016-01-19

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai ,  Tzung-Min Su ,  Chih-Hsin Lin

IPC: G06F3/042

CPC classification number: G06F3/0421 ,  G06F3/042 ,  G06F2203/04104

Abstract: The present invention provides an optical touch system configured to determine an object region according to a brightness information acquired by a brightness sensing unit and to identify a block information of objects within the object region according to an image information acquired by an image sensing unit. The present invention further provides an objection detection method for an optical touch system.

Abstract translation: 本发明提供了一种光学触摸系统，其被配置为根据由亮度感测单元获取的亮度信息来确定对象区域，并且根据由图像感测单元获取的图像信息来识别对象区域内的对象的块信息。 本发明还提供了一种用于光学触摸系统的异物检测方法。

公开(公告)号：US08629856B2

公开(公告)日：2014-01-14

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。