公开(公告)号：US20160105220A1

公开(公告)日：2016-04-14

申请号：US14881797

申请日：2015-10-13

Applicant: Jun Ho KIM ,  Hyun Jae KANG ,  Min Woo LEE ,  Hyoung Hwan ROH

Inventor： Jun Ho KIM ,  Hyun Jae KANG ,  Min Woo LEE ,  Hyoung Hwan ROH

IPC: H04B5/00

CPC classification number: H04B5/0031 ,  H04B5/0056

Abstract: A near-field communication (NFC) card reader may include a monitor configured to measure an amplitude of a magnetic field induced by an antenna; a gain controller configured to determine an amplification gain based on the measured amplitude of the magnetic field and output a gain control signal; a signal restoration unit configured to receive a carrier signal and a data signal that overlaps with the carrier signal via the antenna, and restore the data signal from the received signals; and a variable-gain amplifier configured to amplify the data signal restored by the signal restoration unit according to the gain control signal.

Abstract translation: 近场通信（NFC）读卡器可以包括被配置为测量由天线感应的磁场的振幅的监视器; 增益控制器，被配置为基于所测量的所述磁场的振幅来确定放大增益，并输出增益控制信号; 信号恢复单元，被配置为经由天线接收载波信号和与载波信号重叠的数据信号，并且从接收到的信号中恢复数据信号; 以及可变增益放大器，被配置为根据增益控制信号放大由信号恢复单元恢复的数据信号。

公开(公告)号：US20140263643A1

公开(公告)日：2014-09-18

申请号：US14206276

申请日：2014-03-12

Applicant: Jun-Ho KIM ,  Hyoung-Hwan ROH ,  IL SONG

Inventor： Jun-Ho KIM ,  Hyoung-Hwan ROH ,  IL SONG

IPC: G06K7/08

CPC classification number: G06K7/083 ,  G06K7/10039

Abstract: A method of operating a contactless integrated circuit (IC) card reader includes calculating a first transition time of at least one first magnetic pulse during a first transition interval and calculating a second transition time of a second magnetic pulse during a second transition interval. The first transition time is calculated in a calibration phase, and the second transition time is calculated in a detection phase. A contactless IC card is determined to be within a communication rage of the reader based on a comparison of the first and second transition times.

Abstract translation: 一种操作非接触式集成电路（IC）读卡器的方法包括：在第一转变间隔期间计算至少一个第一磁脉冲的第一转换时间，并在第二转换间隔期间计算第二磁脉冲的第二转换时间。 在校准阶段计算第一过渡时间，并在检测阶段计算第二过渡时间。 基于第一和第二转换时间的比较，确定非接触式IC卡处于读取器的通信范围内。

公开(公告)号：US20150178526A1

公开(公告)日：2015-06-25

申请号：US14527059

申请日：2014-10-29

Applicant: Hyoung-Hwan Roh ,  Il-Jong Song

Inventor： Hyoung-Hwan Roh ,  Il-Jong Song

IPC: G06K7/10 ,  H01Q1/52 ,  H01Q1/22 ,  H01Q7/00

CPC classification number: H01Q1/2216 ,  G06K7/10237 ,  G06K19/07773 ,  H01Q1/2225 ,  H01Q1/526 ,  H01Q5/335 ,  H01Q7/00

Abstract: A matching circuit of a near field communication (NFC) device includes a resonance unit connected between a first terminal and a second terminal of an antenna. The antenna is responsive to an electromagnetic wave. The resonance unit includes a first capacitor connected between the first terminal and the second terminal of the antenna. A matching unit is configured to perform impedance matching between the antenna and an NFC chip. The matching unit is connected between the first terminal and the second terminal of the antenna.

Abstract translation: 近场通信（NFC）设备的匹配电路包括连接在天线的第一终端和第二终端之间的共振单元。 天线响应电磁波。 谐振单元包括连接在天线的第一端子和第二端子之间的第一电容器。 匹配单元被配置为执行天线和NFC芯片之间的阻抗匹配。 匹配单元连接在天线的第一端子和第二端子之间。

公开(公告)号：US08193775B2

公开(公告)日：2012-06-05

申请号：US12759213

申请日：2010-04-13

Applicant: Jun-seok Park ,  Ha-Ryoung Oh ,  Yeong-Rak Seong ,  Hyoung-Hwan Roh ,  Do-won Kim

Inventor： Jun-seok Park ,  Ha-Ryoung Oh ,  Yeong-Rak Seong ,  Hyoung-Hwan Roh ,  Do-won Kim

IPC: H01M10/46

CPC classification number: H02J7/0052 ,  H02J7/345 ,  H02J2007/0059 ,  H02M7/2176 ,  H03K17/14 ,  H03K17/145

Abstract: An electricity charging module using a hysteresis switch includes a storage capacitor that preliminarily stores electrical energy supplied from an external power source, a charging unit for preventing over-charging or over-discharging through monitoring of the charging state of the rechargeable battery, and a hysteresis switch that has a larger turn-on voltage level than the turn-off voltage level, and located between the storage capacitor and the charging unit, thereby electrically connecting or disconnecting the storage capacitor with the charging unit. The hysteresis switch includes a first voltage dividing resistor pair that divides the voltage of an external power source by the resistance ratio of the first voltage dividing resistor pair, a second voltage dividing resistor pair whose one end is connected to a positive electrode terminal of the external power source, a first switching device whose control terminal is connected to the junction of the voltage dividing resistors of the second voltage dividing resistor pair, a second switching device whose control terminal is connected to the junction of the voltage dividing resistors of the first voltage dividing resistor pair, and a resistor that is connected to the junction between the first electrode terminal of the second switching device and the junction of the voltage dividing resistors of the first voltage dividing resistor pair.

Abstract translation: 使用滞后开关的充电模块包括预先存储从外部电源供给的电能的储存电容器，通过监视可再充电电池的充电状态来防止过充电或过放电的充电单元和滞后 开关具有比关断电压电平更高的接通电压电平，并且位于存储电容器和充电单元之间，从而将存储电容器与充电单元电连接或断开。 迟滞开关包括：第一分压电阻对，其将外部电源的电压除以第一分压电阻对的电阻比;第二分压电阻对，其一端连接到外部的正极端子 电源，第一开关装置，其控制端子连接到第二分压电阻器对的分压电阻器的结，第二开关装置，其控制端子连接到第一分压电阻器的分压电阻器的结 电阻器对和连接到第二开关器件的第一电极端子与第一分压电阻器对的分压电阻器的接点之间的结的电阻器。

公开(公告)号：US09900053B2

公开(公告)日：2018-02-20

申请号：US14881797

申请日：2015-10-13

Applicant: Jun Ho Kim ,  Hyun Jae Kang ,  Min Woo Lee ,  Hyoung Hwan Roh

Inventor： Jun Ho Kim ,  Hyun Jae Kang ,  Min Woo Lee ,  Hyoung Hwan Roh

IPC: H04B5/00

CPC classification number: H04B5/0031 ,  H04B5/0056

Abstract: A near-field communication (NFC) card reader may include a monitor configured to measure an amplitude of a magnetic field induced by an antenna; a gain controller configured to determine an amplification gain based on the measured amplitude of the magnetic field and output a gain control signal; a signal restoration unit configured to receive a carrier signal and a data signal that overlaps with the carrier signal via the antenna, and restore the data signal from the received signals; and a variable-gain amplifier configured to amplify the data signal restored by the signal restoration unit according to the gain control signal.

公开(公告)号：US20110242863A1

公开(公告)日：2011-10-06

申请号：US12758987

申请日：2010-04-13

Applicant: Jun-seok PARK ,  Ha-Ryoung OH ,  Yeong-Rak SEONG ,  Hyoung-Hwan ROH ,  Ki-won SEO

Inventor： Jun-seok PARK ,  Ha-Ryoung OH ,  Yeong-Rak SEONG ,  Hyoung-Hwan ROH ,  Ki-won SEO

IPC: H02M7/06 ,  H01Q1/50 ,  H01Q9/04

CPC classification number: H01Q9/0428 ,  H01Q1/248 ,  H01Q5/40 ,  H01Q9/0457 ,  H02J7/025 ,  H02J17/00 ,  H02J50/27

Abstract: A patch antenna for receiving high frequency wireless signal and a rectenna using the same, more particularly, an impedance-matched patch antenna adopting a slot capacitive coupling structure and a rectenna capable of generating electrical energy from the wireless signals having different frequency band. A rectenna for receiving an A.C. wireless signal carrying electrical energy and converting the wireless signal into a D.C. electrical energy, is comprised of: a patch antenna for receiving the wireless signal comprising an dielectric substrate, a patch that is formed at the upper area of the surface of the dielectric substrate and providing the first frequency response characteristics, a ground plane formed on the other surface of the dielectric substrate, and an impedance matching means providing the second frequency response characteristics; and a rectifying unit that converts the wireless signal, received via the patch antenna, into a D.C. electrical energy by rectifying the wireless signal.

Abstract translation: 用于接收高频无线信号的贴片天线和使用其的整流天线，更具体地，采用时隙电容耦合结构的阻抗匹配贴片天线和能够从具有不同频带的无线信号产生电能的整流天线。 用于接收承载电能并将无线信号转换为DC电能的AC无线信号的整流天线包括：用于接收包括电介质基板的无线信号的贴片天线，形成在 并且提供第一频率响应特性，形成在电介质基板的另一个表面上的接地平面和提供第二频率响应特性的阻抗匹配装置; 以及整流单元，其通过校正无线信号将经由贴片天线接收的无线信号转换成直流电能。

公开(公告)号：US20110241624A1

公开(公告)日：2011-10-06

申请号：US12759213

申请日：2010-04-13

Applicant: Jun-seok PARK ,  Ha-Ryoung OH ,  Yeong-Rak SEONG ,  Hyoung-Hwan ROH ,  Do-won KIM

Inventor： Jun-seok PARK ,  Ha-Ryoung OH ,  Yeong-Rak SEONG ,  Hyoung-Hwan ROH ,  Do-won KIM

IPC: H02J7/00 ,  H03K17/687 ,  H03K17/60 ,  H03K17/56

CPC classification number: H02J7/0052 ,  H02J7/345 ,  H02J2007/0059 ,  H02M7/2176 ,  H03K17/14 ,  H03K17/145

Abstract: An electricity charging module using a hysteresis switch includes a storage capacitor that preliminarily stores electrical energy supplied from an external power source, a charging unit for preventing over-charging or over-discharging through monitoring of the charging state of the rechargeable battery, and a hysteresis switch that has a larger turn-on voltage level than the turn-off voltage level, and located between the storage capacitor and the charging unit, thereby electrically connecting or disconnecting the storage capacitor with the charging unit. The hysteresis switch includes a first voltage dividing resistor pair that divides the voltage of an external power source by the resistance ratio of the first voltage dividing resistor pair, a second voltage dividing resistor pair whose one end is connected to a positive electrode terminal of the external power source, a first switching device whose control terminal is connected to the junction of the voltage dividing resistors of the second voltage dividing resistor pair, a second switching device whose control terminal is connected to the junction of the voltage dividing resistors of the first voltage dividing resistor pair, and a resistor that is connected to the junction between the first electrode terminal of the second switching device and the junction of the voltage dividing resistors of the first voltage dividing resistor pair.

Abstract translation: 使用滞后开关的充电模块包括预先存储从外部电源供给的电能的储存电容器，通过监视可再充电电池的充电状态来防止过充电或过放电的充电单元和滞后 开关具有比关断电压电平更高的接通电压电平，并且位于存储电容器和充电单元之间，从而将存储电容器与充电单元电连接或断开。 迟滞开关包括：第一分压电阻对，其将外部电源的电压除以第一分压电阻对的电阻比;第二分压电阻对，其一端连接到外部的正极端子 电源，第一开关装置，其控制端子连接到第二分压电阻器对的分压电阻器的结，第二开关装置，其控制端子连接到第一分压电阻器的分压电阻器的结 电阻器对和连接到第二开关器件的第一电极端子与第一分压电阻器对的分压电阻器的接点之间的结的电阻器。

公开(公告)号：US09218518B2

公开(公告)日：2015-12-22

申请号：US14206276

申请日：2014-03-12

Applicant: Jun-Ho Kim ,  Hyoung-Hwan Roh ,  Il-Jong Song

Inventor： Jun-Ho Kim ,  Hyoung-Hwan Roh ,  Il-Jong Song

IPC: G06K19/06 ,  G06K7/08 ,  G06K7/10

CPC classification number: G06K7/083 ,  G06K7/10039

Abstract: A method of operating a contactless integrated circuit (IC) card reader includes calculating a first transition time of at least one first magnetic pulse during a first transition interval and calculating a second transition time of a second magnetic pulse during a second transition interval. The first transition time is calculated in a calibration phase, and the second transition time is calculated in a detection phase. A contactless IC card is determined to be within a communication rage of the reader based on a comparison of the first and second transition times.

Abstract translation: 一种操作非接触式集成电路（IC）读卡器的方法包括：在第一转变间隔期间计算至少一个第一磁脉冲的第一转换时间，并在第二转换间隔期间计算第二磁脉冲的第二转换时间。 在校准阶段计算第一过渡时间，并在检测阶段计算第二过渡时间。 基于第一和第二转换时间的比较，确定非接触式IC卡处于读取器的通信范围内。

公开(公告)号：US08618985B2

公开(公告)日：2013-12-31

申请号：US12758987

申请日：2010-04-13

Applicant: Jun-seok Park ,  Ha-Ryoung Oh ,  Yeong-Rak Seong ,  Hyoung-Hwan Roh ,  Ki-won Seo

Inventor： Jun-seok Park ,  Ha-Ryoung Oh ,  Yeong-Rak Seong ,  Hyoung-Hwan Roh ,  Ki-won Seo

IPC: H01Q1/38

CPC classification number: H01Q9/0428 ,  H01Q1/248 ,  H01Q5/40 ,  H01Q9/0457 ,  H02J7/025 ,  H02J17/00 ,  H02J50/27

Abstract: A patch antenna for receiving high frequency wireless signal and a rectenna using the same, more particularly, an impedance-matched patch antenna adopting a slot capacitive coupling structure and a rectenna capable of generating electrical energy from the wireless signals having different frequency band. A rectenna for receiving an A.C. wireless signal carrying electrical energy and converting the wireless signal into a D.C. electrical energy, is comprised of: a patch antenna for receiving the wireless signal comprising an dielectric substrate, a patch that is formed at the upper area of the surface of the dielectric substrate and providing the first frequency response characteristics, a ground plane formed on the other surface of the dielectric substrate, and an impedance matching means providing the second frequency response characteristics; and a rectifying unit that converts the wireless signal, received via the patch antenna, into a D.C. electrical energy by rectifying the wireless signal.

Abstract translation: 用于接收高频无线信号的贴片天线和使用其的整流天线，更具体地，采用时隙电容耦合结构的阻抗匹配贴片天线和能够从具有不同频带的无线信号产生电能的整流天线。 用于接收承载电能并将无线信号转换为DC电能的AC无线信号的整流天线包括：用于接收包括电介质基板的无线信号的贴片天线，形成在 并且提供第一频率响应特性，形成在电介质基板的另一个表面上的接地平面和提供第二频率响应特性的阻抗匹配装置; 以及整流单元，其通过校正无线信号将经由贴片天线接收的无线信号转换成直流电能。