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公开(公告)号:US20200315438A1
公开(公告)日:2020-10-08
申请号:US16842497
申请日:2020-04-07
Inventor: Kwang IL OH , Tae Wook KANG , Sung Eun KIM , Hyuk KIM , Mi Jeong PARK , Hyung-IL PARK , Kyung Jin BYUN , Jae-Jin LEE , In Gi LIM
Abstract: A capsule endoscope image receiver includes a receiving electrode unit that receives first and second differential signals from a capsule endoscope image transmitter through a human body communication channel, an analog amplifying unit that receives the first and second differential signals and outputs first and second amplified differential signals, and a signal restoring unit that receives the first and second amplified differential signals and restores image information. The analog amplifying unit includes a first amplifier that outputs the first amplified differential signal, a second amplifier that outputs the second amplified differential signal, and an input impedance that is connected between a first inverting input terminal of the first amplifier and a second inverting input terminal of the second amplifier and obtains a gain of differential signal amplification in which a high frequency component of the first and second amplified differential signals is greater than a low frequency component.
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公开(公告)号:US20190307318A1
公开(公告)日:2019-10-10
申请号:US16378472
申请日:2019-04-08
Inventor: Kwang IL OH , Hyung-IL PARK , Tae Wook KANG , Sung Eun KIM , Mi Jeong PARK , Jae-Jin LEE , In Gi LIM
Abstract: Provided are a capsule endoscopic receiving device, a capsule endoscope system including the same, and an operating method of the capsule endoscopic receiving device, the capsule endoscopic receiving device including an analog front end configured to receive a preamble from one receiving electrode pair from among a plurality of receiving electrodes, a valid signal detection circuit configured to compare a reference voltage with input data generated on a basis of a voltage level of the preamble, and a preamble processor configured to select a final electrode pair configured to receive the image data on a basis of a correlation value of the preamble and a comparison result of the input data and the reference voltage. According to the inventive concept, stability of receiving image data may be secured by selecting an optimal receiving electrode pair.
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公开(公告)号:US20220201611A1
公开(公告)日:2022-06-23
申请号:US17552766
申请日:2021-12-16
Inventor: Hyuk KIM , HYUNG-IL PARK , Tae Wook KANG , Sung Eun KIM , Mi Jeong PARK , Kyung Jin BYUN , KWANG IL OH , Sukho LEE , Jae-Jin LEE , In Gi LIM , Kyuseung HAN
Abstract: Disclosed is an operating method of a user communication device, which includes receiving a wakeup signal from a stationary communication device over a first human body communication channel, the wakeup signal having a frequency in a low frequency band, switching from a standby mode to a wakeup mode in response to the wakeup signal, and receiving a data signal from the stationary communication device over the first human body communication channel during the wakeup mode, and the first human body communication channel is provided by a body of a user of the user communication device.
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公开(公告)号:US20210295511A1
公开(公告)日:2021-09-23
申请号:US17339574
申请日:2021-06-04
Inventor: Kwang IL OH , Tae Wook KANG , Sung Eun KIM , Mi Jeong PARK , Seong Mo PARK , Hyung-IL PARK , Jae-Jin LEE , In Gi LIM
IPC: G06T7/00 , A61B1/00 , A61B1/04 , A61B5/00 , G16H30/20 , G06N3/08 , G16H50/70 , G16H30/40 , G06N3/04
Abstract: Provided is a capsule endoscope. The capsule endoscope includes: an imaging device configured to perform imaging on a digestive tract in vivo to generate an image; an artificial neural network configured to determine whether there is a lesion area in the image; and a transmitter configured to transmit the image based on a determination result of the artificial neural network.
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公开(公告)号:US20200067516A1
公开(公告)日:2020-02-27
申请号:US16542469
申请日:2019-08-16
Inventor: KWANG IL OH , Tae Wook KANG , Sung Eun KIM , Hyuk KIM , Mi Jeong PARK , Hyung-IL PARK , Kyung Jin BYUN , Jae-Jin LEE , In Gi LIM
IPC: H03L7/093
Abstract: The inventive concept includes an oscillating circuit, a phase inverting circuit, and a phase detecting circuit. The oscillating circuit generates a first clock to be used to sample an input signal. The phase inverting circuit outputs a second clock based on the first clock. The phase detecting circuit generates a control signal having a first logic value when a phase difference between a phase of the input signal and a phase of the second clock is less than a reference value for a reference time or more. The phase detecting circuit generates the control signal having a second logic value when the phase difference is equal to or greater than the reference value or when the phase difference is less than the reference value for a time shorter than the reference time. The phase inverting circuit inverts the phase of the second clock when a logic value of the control signal changes from the first logic value to the second logic value or when a logic value of the control signal changes from the second logic value to the first logic value.
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公开(公告)号:US20180026729A1
公开(公告)日:2018-01-25
申请号:US15616788
申请日:2017-06-07
Inventor: In Gi LIM , Hyung-Il PARK , Sung Weon KANG , Tae Wook KANG , Sung Eun KIM , Jung Bum KIM , Mi Jeong PARK , Seong Mo PARK , Kwang Il OH , Byounggun CHOI
CPC classification number: H04B13/005 , A61B1/00006 , A61B1/00009 , A61B1/00016 , A61B1/041 , A61B2562/04 , H04J3/06 , H04J3/0608 , H04J3/1694 , H04L5/0044 , H04L5/0053 , H04L7/043 , H04N5/2256 , H04N2005/2255
Abstract: The present disclosure relates to a capsule endoscope transmitter configured to transmit frames including control frames and data frames to a capsule endoscope receiver. The capsule endoscope transmitter includes a preamble generator configured to generate preambles for synchronizing and identifying the control frames used to select a reception electrode pair that receives the frames, and a line sync generator configured to generate a line sync for synchronizing the data frames and identifying a code value of each of the data frames.
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公开(公告)号:US20150097708A1
公开(公告)日:2015-04-09
申请号:US14206522
申请日:2014-03-12
Inventor: Mi Jeong PARK , Ik Soo EO , Sang-Kyun KIM
IPC: H03M7/00
CPC classification number: H03H17/0628
Abstract: A data rate conversion device generates a first parameter representing a memory address position to sample and a second parameter representing a phase value of an estimation time point, records input data at a memory based on an input clock, outputs sampled continued data from the memory using the first parameter based on an output clock, and generates and outputs final data using the continued data, a plurality of filter coefficients, and the second parameter.
Abstract translation: 数据速率转换装置产生表示要采样的存储器地址位置的第一参数和表示估计时间点的相位值的第二参数,基于输入时钟将输入数据记录在存储器中,使用 基于输出时钟的第一参数,并且使用连续数据,多个滤波器系数和第二参数来生成和输出最终数据。
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8.
公开(公告)号:US20240097799A1
公开(公告)日:2024-03-21
申请号:US18341507
申请日:2023-06-26
Inventor: Sung Eun KIM , Tae Wook KANG , Hyuk KIM , Kyung Hwan PARK , Mi Jeong PARK , Hyung-IL PARK , Kyung Jin BYUN , Kwang IL OH , Jae-Jin LEE , In Gi LIM
CPC classification number: H04B13/005 , H03F3/19 , H03F2200/165 , H03F2200/171 , H03F2200/451
Abstract: Disclosed is an amplification circuit, which includes a first amplifier that receives an external signal and performs first band pass filtering on the external signal to output a first filter signal, and a second amplifier that receives the first filter signal and performs second band pass filtering on the first filter signal to output a second filter signal, and a frequency pass bandwidth of the second band pass filtering is narrower than a frequency pass bandwidth of the first band pass filtering.
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9.
公开(公告)号:US20210314011A1
公开(公告)日:2021-10-07
申请号:US17212252
申请日:2021-03-25
Inventor: Tae Wook KANG , Sung Eun KIM , HYUNG-IL PARK , Jae-Jin LEE , Hyuk KIM , Kyung Hwan PARK , Mi Jeong PARK , Kyung Jin BYUN , KWANG IL OH , In Gi LIM
Abstract: A hybrid communication device, an operation method thereof, and a communication system including the same are provided. The hybrid communication device includes a contact unit that includes an antenna for receiving a first communication signal and an electrode for receiving a second signal, a switch controller that includes a first switch and a second switch and controls the first switch and the second switch based on a change in capacitance of the electrode, and a signal processing unit that receives at least one of the first communication signal and the second communication signal from the contact unit via the first switch and processes the received signal. The first switch is connected to the contact unit, and the signal processing unit is connected to the first switch.
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公开(公告)号:US20200382223A1
公开(公告)日:2020-12-03
申请号:US16881657
申请日:2020-05-22
Inventor: Hyuk KIM , Hyung-IL PARK , Tae Wook KANG , Sung Eun KIM , Mi Jeong PARK , Kyung Jin BYUN , Kwang IL OH , Jae-Jin LEE , In Gi LIM
IPC: H04B13/00 , G06F16/9535 , G06F3/044 , H04B5/00
Abstract: A user device connected to an edge device, based on a touch of a user includes an electrode in touch with a body of the user, a human body communication module that receives a first signal from the edge device through the body and the electrode, an operation processing module that acquires identification information, location information, version information of the edge device, and time information at which the first signal is received, from the first signal, and a memory module that stores the identification information, the location information, the version information, and the time information, as part of life log information.
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