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1. 发明授权

US09755702B2 Method of operating near field communication (NFC) device and NFC device 有权
公开(公告)号：US09755702B2
公开(公告)日：2017-09-05
申请号：US14803590
申请日：2015-07-20
申请人： Jong-Pil Cho , Il-Jong Song , Byeong-Hoon Lee
发明人： Jong-Pil Cho , Il-Jong Song , Byeong-Hoon Lee
IPC分类号： H04B5/00 , H04W52/18 , H04W52/48
CPC分类号： H04B5/0062 , H04B5/0031
摘要： A method of operating a near field communication (NFC) device includes receiving, by the NFC device, a first signal from an NFC reader, transmitting, by the NFC device, a response to the first signal to the NFC reader and changing selectively, by the NFC device, a radio frequency (RF) configuration parameter associated with signal transmission operation during a signal transmission interval, based on determining whether the NFC reader recognizes the response.

2. 发明授权

US09596003B2 Near field communication devices, systems, and methods using Q factor adjustments 有权
标题翻译：近场通信设备，系统和使用Q因子调整的方法
公开(公告)号：US09596003B2
公开(公告)日：2017-03-14
申请号：US14199346
申请日：2014-03-06
申请人： Jong-Pil Cho , Il-Jong Song
发明人： Jong-Pil Cho , Il-Jong Song
IPC分类号： H04B5/00 , H01Q1/22 , G06K7/10 , G06K19/07
CPC分类号： H04B5/0031 , G06K7/10148 , G06K7/10237 , G06K19/0726 , H01Q1/2225 , H04B5/00 , H04B5/0056
摘要： An NFC (near field communication) device can include a resonance unit and an NFC chip. The resonance unit may communicate with an external device through an electromagnetic wave. The NFC chip can provide output data to the resonance unit, receive input data from the resonance unit, and can reduce a Q factor (quality factor) of the resonance unit when a signal receive operation is performed in a card mode, and can maintain the Q factor of the resonance unit in a reader mode and when a signal transmit operation is performed in the card mode.
摘要翻译： NFC（近场通信）设备可以包括谐振单元和NFC芯片。谐振单元可以通过电磁波与外部设备通信。 NFC芯片可以向谐振单元提供输出数据，从谐振单元接收输入数据，并且可以在以卡模式执行信号接收操作时降低谐振单元的Q因子（品质因数），并且可以维持读取器模式下的谐振单元的Q因子和在卡模式下执行信号发送操作时。

3. 发明授权

US09515702B2 Demodulators for near field communication, near field communication devices, and electronic devices having the same 有权
标题翻译：用于近场通信的解调器，近场通信设备以及具有该解调器的电子设备
公开(公告)号：US09515702B2
公开(公告)日：2016-12-06
申请号：US14741321
申请日：2015-06-16
申请人： Jong-Pil Cho , Ji-Myung Na , Il-jong Song
发明人： Jong-Pil Cho , Ji-Myung Na , Il-jong Song
IPC分类号： H04B5/00 , H03D1/10 , H03D1/12 , H03D1/22
CPC分类号： H04B5/0031 , H03D1/10 , H03D1/12 , H03D1/22
摘要： A demodulator for near field communication may include: a scale down circuit configured to receive first and second modulated signals from first and second power electrodes, and configured to provide a scale down signal to a first node by scaling down magnitudes of the first and second modulated signals; a current source coupled between the first node and a ground voltage, and configured to generate a constant current flowing from the first node to the ground voltage; a charge store circuit coupled between the first node and ground voltage, and configured to perform charge and discharge operations alternately, based on the scale down signal and constant current, to output an envelope signal, which corresponds to an envelope of the scale down signal; and/or an edge detector configured to generate input data, which correspond to the first and second modulated signals, based on a transition of the envelope signal.
摘要翻译：用于近场通信的解调器可以包括：缩小电路，被配置为从第一和第二电力电极接收第一和第二调制信号，并且被配置为通过缩小第一和第二调制信号的幅度来向第一节点提供缩小信号信号; 耦合在第一节点和接地电压之间的电流源，并且被配置为产生从第一节点流向地电压的恒定电流; 耦合在第一节点和地电压之间的电荷存储电路，并且被配置为基于缩小信号和恒定电流交替执行充电和放电操作，以输出对应于缩小信号的包络的包络信号; 和/或边缘检测器，被配置为基于包络信号的转变来生成对应于第一和第二调制信号的输入数据。

4. 发明申请

US20140256253A1 NEAR FIELD COMMUNICATION DEVICES, SYSTEMS, AND METHODS USING Q FACTOR ADJUSTMENTS 有权
标题翻译：近场通信设备，系统和使用Q因子调整的方法
公开(公告)号：US20140256253A1
公开(公告)日：2014-09-11
申请号：US14199346
申请日：2014-03-06
申请人： Jong-Pil Cho , II-Jong Song
发明人： Jong-Pil Cho , II-Jong Song
IPC分类号： H04B5/00
CPC分类号： H04B5/0031 , G06K7/10148 , G06K7/10237 , G06K19/0726 , H01Q1/2225 , H04B5/00 , H04B5/0056
摘要： An NFC (near field communication) device can include a resonance unit and an NFC chip. The resonance unit may communicate with an external device through an electromagnetic wave. The NFC chip can provide output data to the resonance unit, receive input data from the resonance unit, and can reduce a Q factor (quality factor) of the resonance unit when a signal receive operation is performed in a card mode, and can maintain the Q factor of the resonance unit in a reader mode and when a signal transmit operation is performed in the card mode.
摘要翻译： NFC（近场通信）设备可以包括谐振单元和NFC芯片。谐振单元可以通过电磁波与外部设备通信。 NFC芯片可以向谐振单元提供输出数据，从谐振单元接收输入数据，并且可以在以卡模式执行信号接收操作时降低谐振单元的Q因子（品质因数），并且可以维持读取器模式下的谐振单元的Q因子和在卡模式下执行信号发送操作时。

5. 发明申请

US20080079465A1 CLOCK SIGNAL GENERATOR FOR USB DEVICE 有权
标题翻译： USB设备的时钟信号发生器
公开(公告)号：US20080079465A1
公开(公告)日：2008-04-03
申请号：US11775541
申请日：2007-07-10
申请人： Hyuk-Jun Sung , Chan-Yong Kim , Jong-Pil Cho
发明人： Hyuk-Jun Sung , Chan-Yong Kim , Jong-Pil Cho
IPC分类号： H03H11/26 , H03C3/06
CPC分类号： G06F1/04
摘要： A clock signal generator for a USB device. The clock signal generator includes a control circuit and a clock generator that does not need to include a crystal oscillator. The control circuit counts the cycle of the clock signal during the period between two sync signals successively inputted, and generates a frequency control signal corresponding to the count value. The clock generator generates the clock signal with a frequency corresponding to the frequency control signal. The clock signal generator can generate a clock signal that is suitable for the data transfer rate defined, in the USB specification. In addition, the clock; signal generator can generate an RX clock signal so that an RX data signal can be recovered with its energy being stable.
摘要翻译： USB设备的时钟信号发生器。时钟信号发生器包括不需要包括晶振的控制电路和时钟发生器。控制电路在连续输入的两个同步信号之间的周期内对时钟信号的周期进行计数，并产生与计数值对应的频率控制信号。时钟发生器产生具有对应于频率控制信号的频率的时钟信号。时钟信号发生器可以产生适合于在USB规范中定义的数据传输速率的时钟信号。另外，时钟; 信号发生器可以产生RX时钟信号，使得RX数据信号能够以其能量稳定地恢复。

6. 发明授权

US09634674B2 Semiconductor device 有权
公开(公告)号：US09634674B2
公开(公告)日：2017-04-25
申请号：US14837731
申请日：2015-08-27
申请人： Jong-Pil Cho , Young-Joo Lee
发明人： Jong-Pil Cho , Young-Joo Lee
IPC分类号： H03L7/087 , H04B5/00 , H03L7/08 , H03L7/081 , H03L7/18 , H03L7/23 , H04L7/00
CPC分类号： H03L7/087 , H03L7/0805 , H03L7/0814 , H03L7/18 , H03L7/23 , H04B5/0025 , H04B5/0031 , H04B5/0056 , H04L7/0008
摘要： A semiconductor device including a PLL providing candidate clocks of different phases in response to a first clock received from a reader via an antenna, a phase difference detector detecting a phase difference between the first clock and a clock from the candidate clocks, a phase difference controller that selects another clock from the candidate clocks, and a driver that provides transmission data synchronously with the another clock to the reader.

7. 发明授权

US08085019B2 Device for generating internal power supply voltage and method thereof 失效
标题翻译：用于产生内部电源电压的装置及其方法
公开(公告)号：US08085019B2
公开(公告)日：2011-12-27
申请号：US11976006
申请日：2007-10-19
申请人： Jong-Pil Cho , Chan-Yong Kim
发明人： Jong-Pil Cho , Chan-Yong Kim
IPC分类号： G05F1/56
CPC分类号： G05F1/56 , G05F3/16 , G05F3/30 , Y10S323/901
摘要： Example embodiments relate to an internal power supply voltage generating device. The internal power supply voltage generating device may include a start-up voltage generating part, a reference voltage generating part, and/or an internal power supply voltage generating part. The start-up voltage generating part may be configured to generate a start-up voltage using an external power supply voltage. The reference voltage generating part may be configured to generate a reference voltage using the start-up voltage. The internal power supply voltage generating part may be configured to generate an internal power supply voltage using the reference voltage and the external power supply voltage. The start-up voltage generating part may be turned off by the reference voltage generated by the reference voltage generating part. Example embodiments also relate to a method of generating an internal power supply voltage.
摘要翻译：示例性实施例涉及内部电源电压产生装置。内部电源电压产生装置可以包括启动电压产生部分，参考电压产生部分和/或内部电源电压产生部分。启动电压产生部件可以被配置为使用外部电源电压产生启动电压。参考电压产生部件可以被配置为使用启动电压来产生参考电压。内部电源电压产生部件可以被配置为使用参考电压和外部电源电压来产生内部电源电压。启动电压产生部分可以由参考电压产生部分产生的参考电压关断。示例性实施例还涉及产生内部电源电压的方法。

8. 发明申请

US20080186003A1 Device for generating internal power supply voltage and method thereof 失效
标题翻译：用于产生内部电源电压的装置及其方法
公开(公告)号：US20080186003A1
公开(公告)日：2008-08-07
申请号：US11976006
申请日：2007-10-19
申请人： Jong-Pil Cho , Chan-Yong Kim
发明人： Jong-Pil Cho , Chan-Yong Kim
IPC分类号： G05F1/00 , G05F3/00
CPC分类号： G05F1/56 , G05F3/16 , G05F3/30 , Y10S323/901
摘要： Example embodiments relate to an internal power supply voltage generating device. The internal power supply voltage generating device may include a start-up voltage generating part, a reference voltage generating part, and/or an internal power supply voltage generating part. The start-up voltage generating part may be configured to generate a start-up voltage using an external power supply voltage. The reference voltage generating part may be configured to generate a reference voltage using the start-up voltage. The internal power supply voltage generating part may be configured to generate an internal power supply voltage using the reference voltage and the external power supply voltage. The start-up voltage generating part may be turned off by the reference voltage generated by the reference voltage generating part. Example embodiments also relate to a method of generating an internal power supply voltage.
摘要翻译：示例性实施例涉及内部电源电压产生装置。内部电源电压产生装置可以包括启动电压产生部分，参考电压产生部分和/或内部电源电压产生部分。启动电压产生部件可以被配置为使用外部电源电压产生启动电压。参考电压产生部件可以被配置为使用启动电压来产生参考电压。内部电源电压产生部件可以被配置为使用参考电压和外部电源电压来产生内部电源电压。启动电压产生部分可以由参考电压产生部分产生的参考电压关断。示例性实施例还涉及产生内部电源电压的方法。

9. 发明申请

US20170170878A1 NEAR FIELD COMMUNICATION DEVICES, SYSTEMS, AND METHODS USING Q FACTOR ADJUSTMENTS 审中-公开
公开(公告)号：US20170170878A1
公开(公告)日：2017-06-15
申请号：US15445028
申请日：2017-02-28
申请人： Jong-Pil Cho , II-Jong Song
发明人： Jong-Pil Cho , II-Jong Song
IPC分类号： H04B5/00 , G06K19/07 , H01Q1/22 , G06K7/10
CPC分类号： H04B5/0031 , G06K7/10148 , G06K7/10237 , G06K19/0726 , H01Q1/2225 , H04B5/00 , H04B5/0056
摘要： An NFC (near field communication) device can include a resonance unit and an NFC chip. The resonance unit may communicate with an external device through an electromagnetic wave. The NFC chip can provide output data to the resonance unit, receive input data from the resonance unit, and can reduce a Q factor (quality factor) of the resonance unit when a signal receive operation is performed in a card mode, and can maintain the Q factor of the resonance unit in a reader mode and when a signal transmit operation is performed in the card mode.

10. 发明授权

US07873858B2 Clock signal generation device and method 有权
标题翻译：时钟信号发生装置及方法
公开(公告)号：US07873858B2
公开(公告)日：2011-01-18
申请号：US11775541
申请日：2007-07-10
申请人： Hyuk-Jun Sung , Chan-Yong Kim , Jong-Pil Cho
发明人： Hyuk-Jun Sung , Chan-Yong Kim , Jong-Pil Cho
IPC分类号： G06F1/04
CPC分类号： G06F1/04
摘要： A clock signal generator for a USB device. The clock signal generator includes a control circuit and a clock generator that does not need to include a crystal oscillator. The control circuit counts the cycle of the clock signal during the period between two sync signals successively inputted, and generates a frequency control signal corresponding to the count value. The clock generator generates the clock signal with a frequency corresponding to the frequency control signal. The clock signal generator can generate a clock signal that is suitable for the data transfer rate defined, in the USB specification. In addition, the clock; signal generator can generate an RX clock signal so that an RX data signal can be recovered with its energy being stable.
摘要翻译： USB设备的时钟信号发生器。时钟信号发生器包括不需要包括晶体振荡器的控制电路和时钟发生器。控制电路在连续输入的两个同步信号之间的周期内对时钟信号的周期进行计数，并产生与计数值对应的频率控制信号。时钟发生器产生具有对应于频率控制信号的频率的时钟信号。时钟信号发生器可以产生适合于在USB规范中定义的数据传输速率的时钟信号。另外，时钟; 信号发生器可以产生RX时钟信号，使得RX数据信号能够以其能量稳定地恢复。

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