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    Operation method with reducing quantization error and circuit thereof
    1.
    发明授权
    Operation method with reducing quantization error and circuit thereof 有权

    公开(公告)号：US10985770B2

    公开(公告)日：2021-04-20

    申请号：US16819583

    申请日：2020-03-16

    Applicant: SENSORTEK TECHNOLOGY CORP.

    Inventor： Jer-Hau Hsu ,  Tsung-Han Wu ,  Kian-Fu Wong ,  Meng-Yong Lin

    IPC: H03M1/08

    Abstract: The present application relates to a method for operating sensing signals and the circuit thereof. An analog-to-digital converter first processes the input signal having the most significant bit (MSB DATA) data at least once. Afterwards, the analog-to-digital converter processes the input signal having the least significant bit (LSB) data and the MSB data and sums all the input signals. Thereby, the process steps of the analog-to-digital converter can be simplified and the processing time can be shortened.

    Light sensor and control method thereof
    2.
    发明授权
    Light sensor and control method thereof 有权

    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.

    Proximity sensor operating method and proximity sensor applying the method
    4.
    发明授权
    Proximity sensor operating method and proximity sensor applying the method 有权

    公开(公告)号：US11116059B2

    公开(公告)日：2021-09-07

    申请号：US16862577

    申请日：2020-04-30

    Applicant: SensorTek technology Corp.

    Inventor： Meng-Yong Lin ,  Ming-Huang Liu

    IPC: H05B47/10 ,  H05B47/115 ,  H05B47/17

    Abstract: Disclosed is a proximity sensor operating method used in a proximity sensor comprising a light-emitting device. The method comprises: in a standby mode, when an output of the proximity sensor is a first sensing state, driving a driving current of the light-emitting device to comprise a first driving current; when the proximity sensor is triggered, a check mode is entered, the proximity sensor still outputs the first sensing state, and the driving current is switched to comprise a second driving current larger than the first driving current; and in the check mode, when the length of time/number of times of triggering the proximity sensor is larger than or equal to a threshold length/number, the output of the proximity sensor switches to the second sensing state, and returning to the standby mode in which the driving current comprises the first driving current.

    LIGHT SENSOR CIRCUIT
    5.
    发明申请
    LIGHT SENSOR CIRCUIT 有权

    公开(公告)号：US20250007474A1

    公开(公告)日：2025-01-02

    申请号：US18594576

    申请日：2024-03-04

    Applicant: SENSORTEK TECHNOLOGY CORP.

    Inventor： Hsing-Chien Chu ,  Tsung-Han Wu ,  Chi-Hsuan Sun ,  Meng-Yong Lin

    IPC: H03F3/45 ,  G01J1/44 ,  G01J1/46

    Abstract: The present application discloses a light sensor circuit comprising a first amplifier, a second amplifier and an active load. An integration circuit is formed by the operation of this light sensor circuit and connected to a photodiode. The cathode of the photodiode is controlled to maintain an identical or approximate voltage level with the anode of the photodiode, which significantly reduces the influence of the dark current from the photodiode. Consequently, when applied to an analog-to-digital conversion device, the light sensor circuit effectively maintains the performance and accuracy of the device. Additionally, this design significantly reduces circuit complexity and manufacturing costs.

    Operation method of proximity sensor
    6.
    发明授权
    Operation method of proximity sensor 有权

    公开(公告)号：US11882637B2

    公开(公告)日：2024-01-23

    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 ,  H05B47/17 ,  H05B47/165 ,  H05B47/155

    CPC classification number: 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.

    Proximity Sensor and Proximity Sensing Module
    7.
    发明申请
    Proximity Sensor and Proximity Sensing Module 审中-公开

    公开(公告)号：US20180375513A1

    公开(公告)日：2018-12-27

    申请号：US15969786

    申请日：2018-05-03

    Applicant: SensorTek technology Corp.

    Inventor： Kun-Yang Li ,  Meng-Yong Lin ,  Sheng-Chun Chen

    IPC: H03K17/945 ,  G01S17/02 ,  H03K17/968

    Abstract: A proximity sensor for a non-aperture mechanism includes a control circuit for generating a control signal; a first light-emitting element for emitting a first light source according to the control signal of the control circuit; a second light-emitting element for emitting a second light source according to the control signal of the control circuit; and a light sensing element coupled to the control circuit, for sensing the first light source and the second light source reflected by an object, and determining a distance between the proximity sensor and the object according to light intensities of the reflected first light source and the reflected sensed second light source; wherein the light sensing element and the first light-emitting element have a first distance therebetween, the light sensing element and the second light-emitting element have a second distance therebetween, and the second distance is greater than the first distance.

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