公开(公告)号：US11513001B2

公开(公告)日：2022-11-29

申请号：US17082373

申请日：2020-10-28

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Feng-Jung Hsu ,  Tsung-Hua Wu

IPC: G01J1/42 ,  G09G3/34

Abstract: A module comprises a display element, a first polarizing element, a light sensor, a transparent layer, and a second polarizing element. The display element emits a display light source. The first polarizing element covers the display element, and blocks a first phase portion of the display light source and allows a second phase portion of the display light source to penetrate. The transparent layer covers the first polarizing element. The light sensor is disposed on one side of the display element or the first polarizing element. The second polarizing element is disposed between the light sensor and the transparent layer and blocks a second phase portion of the display light source.

公开(公告)号：US20220312570A1

公开(公告)日：2022-09-29

申请号：US17587035

申请日：2022-01-28

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： MENG-YONG LIN ,  MING-HUANG LIU ,  JER-HAU HSU ,  CHENG-FENG LIU

IPC: H05B47/11 ,  H05B47/155 ,  H05B47/165 ,  H05B47/17

Abstract: An operation method of a proximity sensor comprises: controlling a light-emitting element by a processing circuit. Such control includes a plurality of light source on and light source off operations. An optical sensor receives light and outputs a sensing signal corresponding to the intensity of the light. The processing circuit computes the sensing signal to produce a sensing result. The plurality of light source on and light source off operations includes a group having two light sources on operations and two light sources off operations. The two light sources on operations in the group or the two light sources off operations in the group are performed consecutively. In this way, the ambient light components of the light source on and off operations may cancel out each other to reduce the ambient light components contained in the sensing results.

公开(公告)号：US11419198B2

公开(公告)日：2022-08-16

申请号：US17025271

申请日：2020-09-18

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Cheng-Feng Liu ,  Meng-Yong Lin

IPC: H05B47/11 ,  H05B47/115

Abstract: A light sensor and control method thereof, which controls the light sensor comprising a first light emitted element, a second light emitted element, a first light sensing element and a control circuit. The light wavelength of the second light emitted element is greater than the light wavelength of the first light emitted element. The control circuit is coupled to the first and second light elements and the first light sensing element. When the display of an electronic device is in a light-up status, the control circuit switches on the first light emitted element to emit light; when the display of the electronic device is in a light-off status, the control circuit switches on the second light emitted element to emit light. Thus, it will prevent from the influence to the image of the display, and obtained the better sensing ability.

公开(公告)号：US11256364B2

公开(公告)日：2022-02-22

申请号：US15174044

申请日：2016-06-06

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Yao-Sheng Hu ,  Chun-Kuan Wu ,  Ching-Jen Tung ,  Hung-Yen Tai

IPC: G06F3/041 ,  G05F3/08 ,  H03K17/16 ,  G06F3/044 ,  G06F3/045

Abstract: This disclosure provides a noise suppression circuit for suppressing a noise in a voltage signal. The noise suppression circuit comprises: a switch unit having a first terminal receiving the voltage signal and a second terminal; a capacitor having a first terminal connected to the first terminal of the switch unit and a second terminal grounded; and an analog front-end unit including an operational amplifier with a signal input terminal and a reference-voltage input terminal electrically connected to the second terminal of the switch unit; wherein the switch unit is controlled by a pulse signal.

公开(公告)号：US20220021408A1

公开(公告)日：2022-01-20

申请号：US17218625

申请日：2021-03-31

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： YU-MENG YEN ,  CHIH-YU LIN

IPC: H04B1/3827 ,  H01Q1/24

Abstract: The present application provides a transmission structure of an antenna and a proximity sensing circuit. The transmission structure includes a transmission line and at least one radio-frequency short-circuit element, a first coupling end of the transmission line is coupled to an antenna, and a second coupling end of the transmission line is coupled to a proximity sensing circuit, and the at least one radio-frequency short-circuit element is coupled between the transmission line and a ground, and is located between the antenna and the proximity sensing circuit. Utilizing the at least one radio-frequency short-circuit element in conjunction with the transmission line so that the transmission path between the antenna and the proximity sensing circuit has the high impedance, and hence preventing a radio-frequency signal from the antenna from affecting the sensing accuracy of the proximity sensing circuit.

公开(公告)号：US20220019302A1

公开(公告)日：2022-01-20

申请号：US17212319

申请日：2021-03-25

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： TUN-JU WANG ,  CHING-JEN TUNG ,  CHI-HUAN LU ,  CHUN-YU LIN ,  YEN-SHAO LIN

IPC: G06F3/044 ,  G06F3/041

Abstract: The application relates to a capacitance sensing circuit, which samples and holds a reference signal to generate an input reference signal, hereby, an input signal is generated to a sensing circuit. Thereby, the sensing circuit generates an output signal according to the input signal and a sensing signal, for the capacitance sensing.

公开(公告)号：US20210285816A1

公开(公告)日：2021-09-16

申请号：US17082373

申请日：2020-10-28

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： FENG-JUNG HSU ,  TSUNG-HUA WU

IPC: G01J1/42 ,  G09G3/34

Abstract: The present application provides a light sensor module, which comprise a display element, a first polarizing element, a light sensor, a transparent layer, and a second polarizing element. The display element emits a display light source. The first polarizing element covers the display element, and blocks a first phase portion of the display light source and allows a second phase portion of the display light source to penetrate. The transparent layer covers the first polarizing element. The light sensor is disposed on one side of the display element or the first polarizing element. The second polarizing element is disposed between the light sensor and the transparent layer and blocks a second phase portion of the display light source.

公开(公告)号：US20240428728A1

公开(公告)日：2024-12-26

申请号：US18648503

申请日：2024-04-29

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Rong-Fong Chen ,  Po-Chun Lin

IPC: G09G3/3208

Abstract: The present application relates to a display system with a light sensor and a control method thereof. The display system comprises a display module and a light sensor. The display module comprises a driving circuit for generating a driving signal. Said driving signal comprises a plurality of periodic pulse waves. The OFF time of one of the periodic pulse waves is extended to an extended time which is greater than the OFF time of the remaining periodic pulse waves. This ensures that the sensing result of the light sensor may not include the contribution of display light.

公开(公告)号：US20230367010A1

公开(公告)日：2023-11-16

申请号：US18100716

申请日：2023-01-24

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Yu-Min Lin ,  Feng-Jung Hsu

IPC: G01S17/32 ,  G01S17/04 ,  G01S7/48

CPC classification number: G01S17/32 ,  G01S17/04 ,  G01S7/4802

Abstract: A light sensor and a control method thereof are disclosed. The light sensor comprises a light-emitting element, a first light-sensing unit and a second light-sensing unit. The light-emitting element generates an emission signal. The light-sensitive characteristic of the first light-sensing unit corresponds to a first wavelength range. The light-sensitive characteristic of the second light-sensing unit corresponds to a second wavelength range, which is different from the first wavelength range. In this way, when the emission signal is reflected by an object and received by the first light-sensing unit and the second light-sensing unit, the type of the object may be determined based on the difference between the signal sensed by the first light-sensing unit and the signal sensed by the second light-sensing unit.

公开(公告)号：US11811398B2

公开(公告)日：2023-11-07

申请号：US17220288

申请日：2021-04-01

Applicant: SENSORTEK TECHNOLOGY CORP.

Inventor： Wang-An Lin ,  Chung-Jung Wu ,  Chun-Lun Wang

IPC: H03K17/955 ,  H03K17/96 ,  G01R27/26 ,  G01V3/08 ,  G06F1/3231 ,  G06F3/01

CPC classification number: H03K17/955 ,  G01R27/2605 ,  G01V3/088 ,  G06F1/3231 ,  G06F3/011 ,  H03K17/962

Abstract: The present application relates to a method of operating a capacitance sensing device comprises: calculating a difference of a raw data compared to one of the raw data received in a previous data frame; and performing a comparison calculation based on the raw data and a stored baseline value to determine whether a proximity event has occurred. Under the proximity event, selects one of several baseline value update procedures based on the magnitude of the difference. Thus, the present application effectively avoids the problem of failure to update the baseline value when the object is close to the capacitance sensing device for a long period of time, which may lead to misjudgment of the capacitance sensing device.