公开(公告)号：US20220136905A1

公开(公告)日：2022-05-05

申请号：US17578691

申请日：2022-01-19

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：US20200240846A1

公开(公告)日：2020-07-30

申请号：US16850187

申请日：2020-04-16

Applicant: PIXART IMAGING INC.

Inventor： CHIH-MING SUN ,  MING-HAN TSAI ,  CHENG-NAN TSAI

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

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：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。

公开(公告)号：US20240404384A1

公开(公告)日：2024-12-05

申请号：US18801885

申请日：2024-08-13

Applicant: PixArt Imaging Inc.

Inventor： CHENG-NAN TSAI ,  GUO-ZHEN WANG ,  CHING-KUN CHEN ,  YEN-CHANG CHU ,  CHIH-MING SUN

IPC: G08B17/107

Abstract: There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.

公开(公告)号：US20230314229A1

公开(公告)日：2023-10-05

申请号：US18330371

申请日：2023-06-07

Applicant: PIXART IMAGING INC.

Inventor： CHIH-MING SUN ,  MING-HAN TSAI ,  CHENG-NAN TSAI

IPC: G01J5/02 ,  G01J5/04 ,  H04N5/33 ,  G01J5/06 ,  B81B7/00 ,  H04N23/57

CPC classification number: G01J5/0265 ,  G01J5/041 ,  H04N5/33 ,  G01J5/045 ,  G01J5/06 ,  B81B7/0064 ,  B81B7/0067 ,  H04N23/57 ,  B81B2201/0278

Abstract: A wearable device includes a case and a temperature sensing device. The case has a first opening. The temperature sensing device is disposed inside the case of the wearable device. The temperature sensing device includes a first substrate, a sensor chip, and a metal shielding structure. The sensor chip is disposed on the first substrate. The metal shielding structure surrounds the sensor chip, and has a second opening. The sensor chip faces towards the first opening and the second opening.

公开(公告)号：US20160012656A1

公开(公告)日：2016-01-14

申请号：US14684648

申请日：2015-04-13

Applicant: PIXART IMAGING INC.

Inventor： CHIH-YUAN CHUANG ,  CHENG-NAN TSAI ,  MING-TSAN KAO ,  YEN-MIN CHANG

IPC: G07C9/00

CPC classification number: G07C9/00071 ,  G07C2009/00095

Abstract: A control system including a detection device and a control host is provided. The detection device is configured to detect a biometric characteristic to accordingly identify a user ID, and output an ID signal according to the user ID. The control host is configured to receive the ID signal to accordingly perform an individualized control associated with the user ID.

Abstract translation: 提供了包括检测装置和控制主机的控制系统。 检测装置被配置为检测生物特征以相应地识别用户ID，并根据用户ID输出ID信号。 控制主机被配置为接收ID信号以相应地执行与用户ID相关联的个性化控制。

公开(公告)号：US20160007929A1

公开(公告)日：2016-01-14

申请号：US14685782

申请日：2015-04-14

Applicant: PIXART IMAGING INC.

Inventor： CHIH-YUAN CHUANG ,  CHENG-NAN TSAI ,  MING-TSAN KAO ,  YEN-MIN CHANG

IPC: A61B5/00 ,  A61B5/1455

CPC classification number: A61B5/7214 ,  A61B5/02427 ,  A61B5/02433 ,  A61B5/02438 ,  A61B5/14552 ,  A61B5/6803 ,  A61B5/6815 ,  A61B5/725 ,  A61B5/742 ,  A61B2562/0238

Abstract: A biometric detection module including a light source module, a detection region and a control module is provided. The light source module is configured to emit green light, red light and IR light in a time division manner to illuminate a skin surface. The detection region is configured to detect penetration light emitted from the light source module for illuminating the skin surface and passing through body tissues to correspondingly generate a green light signal, a red light signal and an IR light signal. The control module is configured to determine a filtering parameter according to the green light signal to accordingly filter the red light signal and the IR light signal, and calculate a biometric characteristic according to at least one of the green light signal, a filtered red light signal and a filtered IR light signal.

Abstract translation: 提供了包括光源模块，检测区域和控制模块的生物特征检测模块。 光源模块被配置为以时分方式发射绿光，红光和红外光以照射皮肤表面。 检测区域被配置为检测从光源模块发射的穿透光，用于照射皮肤表面并穿过身体组织，以相应地产生绿光信号，红光信号和IR光信号。 所述控制模块被配置为根据所述绿光信号确定滤波参数，以相应地对所述红光信号和所述IR光信号进行滤波，并且根据所述绿光信号，滤波红光信号中的至少一个来计算生物特征 和滤波后的IR光信号。