MOVING OBJECT SENSING CONTROL APPARATUS AND METHOD WITH POWER SAVING

    公开(公告)号:US20210096631A1

    公开(公告)日:2021-04-01

    申请号:US16737193

    申请日:2020-01-08

    Abstract: A moving object sensing control circuit includes: a control circuit configured to determine, based on a mode signal, whether to operate in a sensing mode or a power saving mode, and control, in the power saving mode, a sensing operation in a sensing stage and a standby operation in a standby stage; an LC oscillation circuit configured to generate an oscillation signal based on an impedance value corresponding to relocation of a moving object, by performing the sensing operation or the standby operation in response to control of the control circuit; and a sensing circuit configured to obtain a period count value of the sensing oscillation signal using a reference oscillation signal and a main oscillation signal, and output an output signal having movement information of the moving object based on the period count value, by performing the sensing operation in response to the control of the control circuit.

    TOUCH SENSING DEVICE AND ELECTRONIC APPARATUS HAVING REFERENCE SIGNAL UPDATE FUNCTION

    公开(公告)号:US20220060185A1

    公开(公告)日:2022-02-24

    申请号:US17088928

    申请日:2020-11-04

    Abstract: A touch sensing device includes: an oscillation circuit including a sensing inductor disposed inside a touch member, a part of a cover of an electronic device, and generating an oscillation signal according to whether a touch has occurred through the touch member; a signal processor converting the oscillation signal into a digital sensing signal; a reference signal generator updating a reference signal based on the digital sensing signal; and a signal detector outputting a detection signal by detecting whether a touch has occurred through the touch member, using the reference signal and the digital sensing signal.

    FORCE SENSING DEVICE WITH COMMON NOISE REDUCTION AND ELECTRONIC DEVICE

    公开(公告)号:US20210231509A1

    公开(公告)日:2021-07-29

    申请号:US16885479

    申请日:2020-05-28

    Abstract: A force sensing device includes: a substrate disposed inside a housing and spaced apart from inner side surfaces of a first force member and a second force member; a first inductor element mounted on a first surface of the substrate and spaced apart from the first force member, the first inductor element having a first inductance, variable at a time of force input pressing the first force member; a second inductor element mounted on the first surface of the substrate and spaced apart from the second force member, the second inductor element having a second inductance, variable at a time of force input; and a support member having one end contacting the first surface of the substrate between the first inductor element and the second inductor element and another end contacting an inner side surface of the housing between the first force member and the second force member.

    SWITCHING OPERATION SENSING DEVICE WITH TOUCH-SENSING AND FORCE-SENSING USING DUAL-SENSING STRUCTURE

    公开(公告)号:US20210041982A1

    公开(公告)日:2021-02-11

    申请号:US16822317

    申请日:2020-03-18

    Abstract: A switching operation sensing device includes an input operation unit, an oscillator circuit, a frequency digital converter, and a touch-force detector circuit. The input operation unit, integrally formed with a housing, includes a first switch member and a second switch member disposed in different positions. The oscillator circuit is configured to generate a first oscillation signal based on varying capacitance when the first switch member is touched, and a second oscillation signal based on varying inductance when an input force is applied to the second switch member. The frequency digital converter is configured to convert the first oscillation signal to a first count value, and convert the second oscillation signal to a second count value. The touch-force detector circuit is configured to generate a first detection signal by detecting a touch input based on the first count value input from the frequency digital converter, and generate a second detection signal by detecting an input force based on the second count value.

    TOUCH SENSING DEVICE AND ELECTRICAL DEVICE WITH SLIDE DETECTION

    公开(公告)号:US20210089187A1

    公开(公告)日:2021-03-25

    申请号:US16903676

    申请日:2020-06-17

    Abstract: A touch sensing device includes a touch switching unit including first and second touch members, an oscillator circuit generating a first oscillation signal having a variable resonant frequency based on an application of a touch to the first touch member, and generate a second oscillation signal having a variable resonant frequency based on an application of a touch to the second touch member; a detector circuit generating a first count value by converting the first oscillation signal to a first digital value, and generating a second count value by converting the second oscillation signal to a second digital value, detect an individual touch input based on the first count value and the second count value, and detect a slide touch input when a first touch input to the first touch member and a second touch input to the second touch member are detected within a predetermined slide reference time.

    SWITCHING OPERATION SENSING APPARATUS WITH LOW-POWER DUAL-SENSING STRUCTURE

    公开(公告)号:US20210019014A1

    公开(公告)日:2021-01-21

    申请号:US16807308

    申请日:2020-03-03

    Abstract: A switching operation sensing apparatus includes an input operation unit including a first detector integrally formed with a housing; a current variable oscillation circuit generating an oscillation signal having a frequency that varies based on a change in a capacitance from a human body touch on the operating unit, or a change in an inductance from a non-human body touch on the operating unit, and regulate an operating current in response to a control signal; an input operation detection circuit identifying the touch to be from the human body touch, and identifying the touch to be from the non-human body touch based on characteristics of the varied frequency, and generating detection signals having different levels based on the identification of the touch; and a control circuit that determines a sensing manner based on the detection signals and generating the control signal current based on the determined sensing manner.

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