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公开(公告)号：US20240176374A1
公开(公告)日：2024-05-30
申请号：US18522142
申请日：2023-11-28
发明人： Hong Jin KIM , Ho Jin JEON
IPC分类号： G05F1/56
CPC分类号： G05F1/56
摘要： A power circuit power circuit for generating an output power voltage from an input power voltage includes an input power voltage node configured such that an input power voltage is applied thereto; a first node configured to generate an output power voltage; a mode common power switch circuit connected to the input power voltage node and the first node; and a mode controller circuit configured to generate a mode control signal that controls an operation mode of the mode common power switch circuit to any one of at least one pulse modulation mode and a low-dropout (LDO) mode.
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公开(公告)号：US20240086016A1
公开(公告)日：2024-03-14
申请号：US18518312
申请日：2023-11-22
发明人： Youngjin SEO , Yoonki KIM , Seohan LEE , Yeongjin MUN , Sangho WOO
IPC分类号： G06F3/041
CPC分类号： G06F3/04186 , G06F2203/04107
摘要： The present invention provides a touch sensing device having a malfunction prevention function, in which a grounded shield region is further disposed around at least one touch pad, thereby minimizing influence of a water drop settling between the touch pad and the shield region on an actual user touch.
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公开(公告)号：US11460952B2
公开(公告)日：2022-10-04
申请号：US16840833
申请日：2020-04-06
发明人： Young Jin Seo , Young Gun Heo
摘要： Disclosed herein are an apparatus and method for automatically calibrating capacitance per channel, for measuring parasitic capacitance values of respective channels due to a difference in a length of a wiring of each capacitance sensing channel when a circuit is designed and adding a unique calibration capacitance value of each channel such that all channels have the same reference capacitance value that is preset, and in detail, the apparatus for automatically calibrating a capacitance per channel includes a touch sensing device including a plurality of touch sensing regions, and a capacitance measurement and calibration device configured to measure parasitic capacitances of channels connected to the plurality of touch sensing regions, respectively, and to add a unique calibration capacitance of each channel to a corresponding channel to acquire a preset reference capacitance when each channel is connected to the parasitic capacitance.
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4.发明申请公开(公告)号：US20190029023A1
公开(公告)日：2019-01-24
申请号：US16039363
申请日：2018-07-19
发明人： Ki Tae Moon , Sang Young Chu , Suk Kyun Hong
IPC分类号： H04W72/08
摘要： Bluetooth apparatus includes a control unit and a Bluetooth communication unit. The control unit divides Bluetooth channels into divided groups including a first group, a second group, and a third group and selects one from among the divided groups. The Bluetooth communication unit uses channels included in the selected divided group, in which the selected divided group does not include a frequency band of a Wi-Fi channel in use.
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5.发明申请公开(公告)号：US20150171843A1
公开(公告)日：2015-06-18
申请号：US14635507
申请日：2015-03-02
发明人： Chang Min Kim
摘要： A pulse width modulation (PWM) signal generation circuit and method are disclosed herein. The PWM signal generation circuit includes an integer part pulse generation circuit, and a fractional part pulse generation circuit. The integer part pulse generation circuit generates an integer part pulse using the integer part of the digitized value of a duty cycle, i.e., the ratio of the time during which any one of high and low levels is maintained to the period of a PWM signal. The fractional part pulse generation circuit generates the PWM signal using the integer part pulse and the fractional part of the digitized value of the duty cycle.
摘要翻译： 本文公开了脉宽调制（PWM）信号产生电路和方法。 PWM信号生成电路包括整数部脉冲发生电路和分数部脉冲发生电路。 整数部分脉冲产生电路使用占空比的数字化值的整数部分即保持高电平和低电平之间的时间与PWM信号的周期的比率来生成整数部分脉冲。 分数脉冲发生电路使用整数部分脉冲和占空比数字化值的小数部分产生PWM信号。
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公开(公告)号：US11499844B2
公开(公告)日：2022-11-15
申请号：US17015341
申请日：2020-09-09
发明人： Young Jin Seo , Seo Han Lee , Jeong Hwan Seo
摘要： A proximity sensor having improved environmental compensation performance and an environmental compensation method in the proximity sensor are disclosed. The environmental compensation method and the proximity sensor advantageously reduce processing time, algorithm operation time, and power consumption by previously setting sensing values before sensing of sensors unlike a typical method in which compensation is carried out by multiplying factors obtained through software. Further, the environmental compensation method and the proximity sensor have an advantage of accurate compensation not only for linearly varying environmental factors but also non-linearly varying environmental factors.
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公开(公告)号：US20210396834A1
公开(公告)日：2021-12-23
申请号：US17353726
申请日：2021-06-21
发明人： Ki Tae MOON
摘要： A device and method for direction finding in a Bluetooth communication system is proposed. The device for direction finding in the Bluetooth communication system includes: an antenna array including a plurality of antennas, the antenna array including a first antenna and a second antenna which are installed along a first direction and a third antenna and a forth antenna which are installed along a second direction perpendicular to the first direction; a receiver electrically connected to the plurality of antennas and configured to transmit or receive a signal through the antenna array; and a controller electrically connected to the receiver and configured to perform controlling of the receiver and processing of the received signal.
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公开(公告)号：US11057855B2
公开(公告)日：2021-07-06
申请号：US16156999
申请日：2018-10-10
发明人： Ki Tae Moon , Sang Young Chu , Suk Kyun Hong
摘要： The present invention relates to a method of detecting an access address of a physical channel in a Bluetooth signal to which channel coding is applied, the method including: performing initial signal processing in a unit of a specific length in a preamble section of a Bluetooth signal; and performing channel decoding in the specific length for a preamble part remained after the initial signal processing, wherein the specific length is a bit pattern length of a bitstream which is repeated in the preamble section or a length of a bitstream input for channel decoding. According to the present invention, channel decoding is performed in a unit of a bit pattern length of an access address from the remaining preamble part, and thus detection of the access address is available even though a start point of the access address is not provided.
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公开(公告)号：US10660107B2
公开(公告)日：2020-05-19
申请号：US16039363
申请日：2018-07-19
发明人： Ki Tae Moon , Sang Young Chu , Suk Kyun Hong
摘要： Bluetooth apparatus includes a control unit and a Bluetooth communication unit. The control unit divides Bluetooth channels into divided groups including a first group, a second group, and a third group and selects one from among the divided groups. The Bluetooth communication unit uses channels included in the selected divided group, in which the selected divided group does not include a frequency band of a Wi-Fi channel in use.
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10.发明申请公开(公告)号：US20190207743A1
公开(公告)日：2019-07-04
申请号：US16157034
申请日：2018-10-10
发明人： Sang Young CHU , Ki Tae MOON , Suk Kyun HONG
摘要： A receiver performs independent packet detection using synchronization words with orthogonality when multiple signals on which frequency-shift keying is performed coexist. The receiver includes a frequency demodulator generating a quasi-amplitude modulation signal that has a value proportional to frequency shift from the first signal or second signal being received, a sign discriminator discriminating a sign of the generated quasi-amplitude modulation signal, and a multi-binary correlator calculating a first correlation value which is a binary correlation value between the discriminated sign and a first synchronization word and calculating a second correlation value which is a binary correlation value between the discriminated sign and a second synchronization word.
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