公开(公告)号：US20240142361A1

公开(公告)日：2024-05-02

申请号：US18409848

申请日：2024-01-11

申请人： PixArt Imaging Inc.

发明人： YEN-CHANG CHU ,  CHENG-NAN TSAI ,  CHIH-MING SUN

IPC分类号： G01N15/06 ,  G08B17/107 ,  G08B29/18

CPC分类号： G01N15/06 ,  G08B17/107 ,  G08B29/18 ,  G01N2015/0046

摘要： There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.

公开(公告)号：US20220268682A1

公开(公告)日：2022-08-25

申请号：US17740392

申请日：2022-05-10

申请人： PixArt Imaging Inc.

发明人： YEN-CHANG CHU ,  CHENG-NAN TSAI ,  CHIH-MING SUN

IPC分类号： G01N15/06 ,  G08B29/18 ,  G08B17/107

摘要： There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.

公开(公告)号：US20210239544A1

公开(公告)日：2021-08-05

申请号：US17235664

申请日：2021-04-20

申请人： PixArt Imaging Inc.

发明人： YEN-PO CHEN ,  HAO-CHE LIU ,  YEN-CHANG CHU ,  CHIH-MING SUN

IPC分类号： G01L1/14 ,  H05K1/11 ,  H05K1/03

摘要： There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed. The force sensor is arranged inside a stem of an earphone for detecting the user input.

公开(公告)号：US20240078887A1

公开(公告)日：2024-03-07

申请号：US18509350

申请日：2023-11-15

申请人： PIXART IMAGING INC.

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

IPC分类号： G08B17/107

CPC分类号： G08B17/107

摘要： 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：US20230375419A1

公开(公告)日：2023-11-23

申请号：US18230173

申请日：2023-08-04

申请人： PixArt Imaging Inc.

发明人： YEN-PO CHEN ,  HAO-CHE LIU ,  YEN-CHANG CHU ,  CHIH-MING SUN

IPC分类号： G01L1/14 ,  H05K1/11 ,  H05K1/03

CPC分类号： G01L1/144 ,  H05K1/118 ,  H05K1/0393 ,  H05K2201/10151

摘要： There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed. The force sensor is arranged inside a stem of an earphone for detecting the user input.