公开(公告)号：US20230020275A1

公开(公告)日：2023-01-19

申请号：US17483227

申请日：2021-09-23

申请人： Luxsentek Microelectronics Corp.

发明人： WEN-SHENG LIN ,  SHENG-CHENG LEE ,  CHIH-WEI LIN ,  CHEN-HUA HSI ,  YUEH-HUNG HOU

IPC分类号： G01S7/497 ,  G01S17/04

摘要： The present invention provides a proximity sensing device with linear electrical offset calibration, which can record electrical offsets caused by different dark currents under different settings of the pulse count or the pulse time, and the proximity sensing device uses these electrical offsets to obtain the linear electrical offset ratio. Then calculate and infer the electrical offset generated in actual use through the linear electrical offset ratio to calibrate sensing signal.

公开(公告)号：US20220205839A1

公开(公告)日：2022-06-30

申请号：US17196347

申请日：2021-03-09

申请人： Luxsentek Microelectronics Corp.

发明人： CHIH-WEI LIN ,  CHEN-HUA HSI

IPC分类号： G01J1/44

摘要： The present invention provides a photosensor device, which can cancel a dark current in 1-2 milliseconds. This photosensor device utilizes a small capacitor to quickly accumulate and transform the dark current to a dark-current voltage. Based on the dark-current voltage and an environment temperature, a calibration voltage can be obtained. By cancelling the calibration voltage from the sensed voltage to get a light voltage, which can be amplified to a lux signal. The process is very quick and sensitive, so the photosensor device can be used in an environment under a low luminance.

公开(公告)号：US20220386877A1

公开(公告)日：2022-12-08

申请号：US17479210

申请日：2021-09-20

申请人： Luxsentek Microelectronics Corp.

发明人： WEN-SHENG LIN ,  SHENG-CHENG LEE ,  CHIH-WEI LIN ,  CHEN-HUA HSI ,  YUEH-HUNG HOU

IPC分类号： A61B5/01 ,  G01S17/08 ,  H04R1/10 ,  H04R1/04

摘要： The present invention proposes a packaging structure that integrates distance sensing device and temperature sensing device, and it is applied to small wearable devices such as earphones or watches. The combination of distance and temperature sensing allows the wearable device to accurately determine whether it is on the user's body, and then start temperature monitoring. It can collect ear temperature information more effectively and energy-saving.

公开(公告)号：US20230102603A1

公开(公告)日：2023-03-30

申请号：US17543452

申请日：2021-12-06

申请人： Luxsentek Microelectronics Corp.

发明人： CHEN-HUA HSI ,  CHAO-YANG HSIAO ,  SHENG-CHENG LEE ,  WEN-SHENG LIN ,  CHIH-WEI LIN ,  YUEH-HUNG HOU

IPC分类号： G01S17/08 ,  G01S7/481

摘要： The present invention provides an adaptive proximity sensing device, which can adjust the lighting power of a light-emitting element according to the sensed intensity to extends the sensing range. Further, the device can normalize the final sensed intensity to return the normal sensed intensity. Moreover, the uses a linear model of the normal sensed intensity and the distance, so the device can quickly determine the distance of the object.

公开(公告)号：US20230029995A1

公开(公告)日：2023-02-02

申请号：US17483272

申请日：2021-09-23

申请人： Luxsentek Microelectronics Corp.

发明人： SHENG-CHENG LEE ,  WEN-SHENG LIN ,  CHIH-WEI LIN ,  CHEN-HUA HSI ,  YUEH-HUNG HOU

IPC分类号： A61B5/024 ,  A61B5/00 ,  A61B5/1455

摘要： The heart rate and blood oxygen monitoring device of the present invention utilizes two ambient light calibration DACs, which can quickly calibrate noise signals generated by ambient light. The heart rate and blood oxygen monitoring device can provide more accurate heart rate and blood oxygen values for optical measurement methods.