Launch device for electronic apparatus and method thereof

    公开(公告)号:US10963266B2

    公开(公告)日:2021-03-30

    申请号:US16029918

    申请日:2018-07-09

    Applicant: FCI Inc.

    Inventor: Hee Jun Kim

    Abstract: A launch device for launching an electronic apparatus comprises a storage unit, a main storage and a processor. The storage unit is configured to store a mini-launch code for executing a detection of an output value of a sensor, and store system driving codes which comprises a standard launch code for launching electronic apparatus. The main storage loads the mini-launch code and the system driving codes. The processor loads and executes the mini-launch code or the standard launch code.

    Switching regulator with soft start circuit and operation method thereof

    公开(公告)号:US10459467B1

    公开(公告)日:2019-10-29

    申请号:US16353074

    申请日:2019-03-14

    Applicant: FCI Inc.

    Inventor: Je Cheol Moon

    Abstract: Disclosed herein is a switching regulator with a soft start circuit for suppressing an in-rush current. The switching regulator includes a peak detector configured to receive a clock signal and detect a peak voltage of the clock signal, a comparator configured to generate a soft start signal for controlling a soft start of the switching regulator based on a result of comparing a level of the peak voltage of the clock signal to a preset reference voltage level, a counter configured to switch a state of the soft start signal at a time point when a preset soft start time arrives, and a ramp voltage generation unit configured to generate a ramp voltage by adjusting a resistance of a variable resistor based on the soft start signal.

    Local oscillator generation system and generation method thereof

    公开(公告)号:US10447203B2

    公开(公告)日:2019-10-15

    申请号:US15860951

    申请日:2018-01-03

    Applicant: FCI INC.

    Inventor: Jecheol Moon

    Abstract: A local oscillator generation system includes a first frequency divider configured to divide frequencies of a first voltage controlled oscillator signal and a second voltage controlled oscillator signal by 2, and output a first divided signal and a second divided signal; a mixer configured to mix the first voltage controlled oscillator signal, the second voltage controlled oscillator signal, the first divided signal, and the second divided signal, and output a first frequency mixed signal and a second frequency mixed signal; a transimpedance amplifier configured to amplify the first frequency mixed signal and the second frequency mixed signal, and output a first amplified signal and a second amplified signal; and a band-pass filter configured to filter the first amplified signal and the second amplified signal, and output a first filtered signal and a second amplified signal.

    WIRELESS LOCAL AREA NETWORK POWER SAVING METHOD AND ACCESS POINT

    公开(公告)号:US20190159124A1

    公开(公告)日:2019-05-23

    申请号:US16163613

    申请日:2018-10-18

    Applicant: FCI INC.

    Abstract: A wireless local area network power saving method and an access point are provided. The access point implements a sleep mode regardless of whether the access point connects to a station. Furthermore, the access point sets different access point wake-up time period depending on the situation whether the access point connects to the base station or not such that power saving effect is enhanced.

    LOCAL OSCILLATOR GENERATION SYSTEM AND GENERATION METHOD THEREOF

    公开(公告)号:US20180191301A1

    公开(公告)日:2018-07-05

    申请号:US15860951

    申请日:2018-01-03

    Applicant: FCI INC.

    Inventor: Jecheol MOON

    Abstract: A local oscillator generation system includes a first frequency divider configured to divide frequencies of a first voltage controlled oscillator signal and a second voltage controlled oscillator signal by 2, and output a first divided signal and a second divided signal; a mixer configured to mix the first voltage controlled oscillator signal, the second voltage controlled oscillator signal, the first divided signal, and the second divided signal, and output a first frequency mixed signal and a second frequency mixed signal; a transimpedance amplifier configured to amplify the first frequency mixed signal and the second frequency mixed signal, and output a first amplified signal and a second amplified signal; and a band-pass filter configured to filter the first amplified signal and the second amplified signal, and output a first filtered signal and a second amplified signal.

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