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1. 发明授权

US07825773B2 Mobile radio frequency identification (mRFID) reader 有权
标题翻译：移动射频识别（mRFID）阅读器
公开(公告)号：US07825773B2
公开(公告)日：2010-11-02
申请号：US11702490
申请日：2007-02-06
申请人： Si-gyoung Koo , Woo-shik Kang , Heung-bae Lee
发明人： Si-gyoung Koo , Woo-shik Kang , Heung-bae Lee
IPC分类号： H04Q5/22 , G08B13/14 , H04B1/00 , H04B17/02 , H04B7/00
CPC分类号： H04B1/408 , H04L27/0014
摘要： A mobile radio frequency identification (mRFID) reader having a receiving circuit is provided. The receiving circuit includes a local oscillator which generates a carrier signal at a predetermined frequency band; a mixer which mixes a tag signal received from a tag with the carrier signal, to lower a frequency of the tag signal; a phase adjusting block which adjusts a phase of the carrier signal by determining a phase of the tag signal; and a control block which processes the tag signal through a series of operations, and controls an operation of the phase adjusting block to compensate for a phase delay of the tag signal according to an output of the processed tag signal. Because the mRFID reader can be provided as small as a half size of a related art reader, a mobile communication terminal accommodating the mRFID reader can be compact-sized. Additionally, because the number of components for the receiving circuit decreases, not only the power consumption but also the unit price can be reduced.
摘要翻译：提供具有接收电路的移动射频识别（mRFID）读取器。所述接收电路包括以预定频带产生载波信号的本地振荡器; 混合器，其将从标签接收的标签信号与载波信号混合，以降低标签信号的频率; 相位调整块，通过确定标签信号的相位来调整载波信号的相位; 以及通过一系列操作来处理标签信号的控制块，并且控制相位调整块的操作，以根据处理的标签信号的输出来补偿标签信号的相位延迟。由于mRFID读取器可以被提供为相关技术读取器的一半的尺寸，所以容纳mRFID读取器的移动通信终端可以是紧凑型的。此外，由于接收电路的部件数量减少，所以不仅可以降低功耗，而且降低单价。

2. 发明申请

US20080074282A1 Mobile radio frequency identification (MRFID) reader 有权
标题翻译：移动射频识别（MRFID）阅读器
公开(公告)号：US20080074282A1
公开(公告)日：2008-03-27
申请号：US11702490
申请日：2007-02-06
申请人： Si-gyoung Koo , Woo-shik Kang , Heung-bae Lee
发明人： Si-gyoung Koo , Woo-shik Kang , Heung-bae Lee
IPC分类号： G08C19/00
CPC分类号： H04B1/408 , H04L27/0014
摘要： A mobile radio frequency identification (mRFID) reader having a receiving circuit is provided. The receiving circuit includes a local oscillator which generates a carrier signal at a predetermined frequency band; a mixer which mixes a tag signal received from a tag with the carrier signal, to lower a frequency of the tag signal; a phase adjusting block which adjusts a phase of the carrier signal by determining a phase of the tag signal; and a control block which processes the tag signal through a series of operations, and controls an operation of the phase adjusting block to compensate for a phase delay of the tag signal according to an output of the processed tag signal. Because the mRFID reader can be provided as small as a half size of a related art reader, a mobile communication terminal accommodating the mRFID reader can be compact-sized. Additionally, because the number of components for the receiving circuit decreases, not only the power consumption but also the unit price can be reduced.
摘要翻译：提供具有接收电路的移动射频识别（mRFID）读取器。所述接收电路包括以预定频带产生载波信号的本地振荡器; 混合器，其将从标签接收的标签信号与载波信号混合，以降低标签信号的频率; 相位调整块，通过确定标签信号的相位来调整载波信号的相位; 以及通过一系列操作来处理标签信号的控制块，并且控制相位调整块的操作，以根据处理的标签信号的输出来补偿标签信号的相位延迟。因为mRFID读取器可以被提供为相关技术读取器的一半的尺寸，所以容纳mRFID读取器的移动通信终端可以是紧凑型的。此外，由于接收电路的部件数量减少，所以不仅可以降低功耗，而且降低单价。

3. 发明授权

US08391822B2 RF receiver and method to receive, amplify, sample, down convert, anti-aliasing filter, and ADC convert an RF signal 有权
标题翻译： RF接收器和接收，放大，采样，降压转换，抗混叠滤波器和ADC转换RF信号的方法
公开(公告)号：US08391822B2
公开(公告)日：2013-03-05
申请号：US12169073
申请日：2008-07-08
申请人： Hyung-sun Lim , Jin-soo Park , Heung-bae Lee , Young-eil Kim , Sang-yoon Jeon , Ick-jin Kwon , Bum-man Kim , Chang-joon Park
发明人： Hyung-sun Lim , Jin-soo Park , Heung-bae Lee , Young-eil Kim , Sang-yoon Jeon , Ick-jin Kwon , Bum-man Kim , Chang-joon Park
IPC分类号： H04B1/16
CPC分类号： H04B1/28
摘要： A radio frequency (RF) receiver and a method of receiving an RF signal are provided. The RF receiver includes a low-noise amplifying unit which amplifies a received signal while restricting out-of-band interference of the received signal, a sampling unit which performs sampling to convert the amplified signal to a discrete time domain signal, a frequency translation unit which down-converts the discrete time domain signal into a frequency band that enables the discrete time domain signal to be converted into a digital signal and restricts interference from a frequency within an aliasing band according to a sampling frequency, an anti-aliasing filtering unit which prevents aliasing from the down-converted signal, a clock unit which provides the sampling unit, the frequency translation unit, and the anti-aliasing filtering unit with sampling frequencies, and an analog-digital-converter which converts the converted signal into the digital signal.
摘要翻译：提供射频（RF）接收机和接收RF信号的方法。 RF接收机包括低噪声放大单元，其在限制接收信号的带外干扰的同时放大接收信号;执行采样以将放大信号转换为离散时域信号的采样单元;频率转换单元其将离散时域信号下变频成使得离散时域信号能够被转换为数字信号的频带，并根据采样频率限制来自混叠频带内的频率的干扰;抗混叠滤波单元，防止来自下变频信号的混叠，提供采样单元的时钟单元，频率转换单元和具有采样频率的抗混叠滤波单元，以及将转换的信号转换成数字信号的模数转换器。

4. 发明申请

US20090102572A1 PARALLEL-STRUCTURED SWITCHED VARIABLE INDUCTOR CIRCUIT 失效
标题翻译：并联结构开关变压器电路
公开(公告)号：US20090102572A1
公开(公告)日：2009-04-23
申请号：US12275608
申请日：2008-11-21
申请人： Yun-seong EO , Hee-mun Bang , Kwang-du Lee , Heung-bae Lee
发明人： Yun-seong EO , Hee-mun Bang , Kwang-du Lee , Heung-bae Lee
IPC分类号： G01D5/20
CPC分类号： H01F21/12 , H03B5/1203 , H03B5/1218 , H03B5/1228 , H03B5/1268 , H03B2200/0048 , H03B2201/0216 , H03B2201/025 , H03J5/244 , H03J2200/15
摘要： An inductor circuit includes a pair of inductors connected in parallel with each other and a switch for turning on and off electric power to one of the pair of inductors. The inductance of the inductor circuit can be varied and the quality factor Q can be improved. Further, RF circuits employing the inductor circuit can generate an intended operating frequency.
摘要翻译：电感器电路包括彼此并联连接的一对电感器和用于将电力接通和断开到该对电感器之一的开关。可以改变电感电路的电感，提高品质因数Q。此外，采用电感电路的RF电路可以产生预期的工作频率。

5. 发明授权

US07358810B2 Buffer amplifier 有权
标题翻译：缓冲放大器
公开(公告)号：US07358810B2
公开(公告)日：2008-04-15
申请号：US11438222
申请日：2006-05-23
申请人： Ick-jin Kwon , Seong-sik Song , Yun-seong Eo , Heung-bae Lee
发明人： Ick-jin Kwon , Seong-sik Song , Yun-seong Eo , Heung-bae Lee
IPC分类号： H03F3/45
CPC分类号： H03F3/45183 , H03F2203/45336 , H03F2203/45362 , H03F2203/45508 , H03F2203/45638 , H03F2203/45702
摘要： A buffer amplifier, which includes a first differential signal amplifier including first and second NMOSFETs (N-type metal-oxide semiconductor field-effect transistors) amplifying differential input signals; a second differential signal amplifier including first and second PMOSFETs (P-type metal-oxide semiconductor field-effect transistors) amplifying the differential input signals; a first feedback resistor including an end commonly connected to drains of the first NMOSFET and the first PMOSFET and the other end commonly connected to gates of the first NMOSFET and the first PMOSFET; a second feedback resistor including an end commonly connected to drains of the second NMOSFET and the second PMOSFET and the other end commonly connected to gates of the second NMOSFET and the second PMOSFET; and a current source providing a bias current for driving the first and second differential signal amplifiers, is provided.
摘要翻译：一种缓冲放大器，包括：第一差分信号放大器，包括放大差分输入信号的第一和第二NMOSFET（N型金属氧化物半导体场效应晶体管）; 包括放大差分输入信号的第一和第二PMOSFET（P型金属氧化物半导体场效应晶体管）的第二差分信号放大器; 第一反馈电阻器，其包括公共连接到第一NMOSFET和第一PMOSFET的漏极的端部，另一端公共连接到第一NMOSFET和第一PMOSFET的栅极; 第二反馈电阻器，其包括公共连接到第二NMOSFET和第二PMOSFET的漏极的端部，另一端公共连接到第二NMOSFET和第二PMOSFET的栅极; 并且提供了提供用于驱动第一和第二差分信号放大器的偏置电流的电流源。

6. 发明申请

US20070052512A1 Variable inductor 有权
标题翻译：可变电感
公开(公告)号：US20070052512A1
公开(公告)日：2007-03-08
申请号：US11513059
申请日：2006-08-31
申请人： Sang-yoon Jeon , Sung-jae Jung , Heung-bae Lee , Dong-hyun Lee
发明人： Sang-yoon Jeon , Sung-jae Jung , Heung-bae Lee , Dong-hyun Lee
IPC分类号： H01F5/00
CPC分类号： H01F21/12 , H01F17/0013 , H01F2017/0046 , H01F2021/125
摘要： A variable inductor is provided, which includes a first lead having both ends to receive a pair of difference signals, a second lead having both ends to receive a pair of the difference signals, and a switch selectively supplying a pair of the difference signals to the second lead by turning on/off according to a control signal. Accordingly, a variable inductor can be implemented that is compact and maximizes the variation rate of inductance.
摘要翻译：提供了一种可变电感器，其包括具有两端以接收一对差信号的第一引线，具有两端以接收一对差信号的第二引线，以及选择性地将一对差信号提供给根据控制信号通过接通/断开第二引线。因此，可以实现紧凑的可变电感器并使电感的变化率最大化。

7. 发明申请

US20060197622A1 Variable inductance applying device using variable capacitor and variable frequency generating device thereof 审中-公开
标题翻译：使用可变电容器的可变电感施加装置及其变频发生装置
公开(公告)号：US20060197622A1
公开(公告)日：2006-09-07
申请号：US11360525
申请日：2006-02-24
申请人： Yun-seong Eo , Kwang-du Lee , Heung-bae Lee
发明人： Yun-seong Eo , Kwang-du Lee , Heung-bae Lee
IPC分类号： H03B5/08
CPC分类号： H03B5/08 , H03J3/20
摘要： Disclosed is a variable inductance applying device using a variable capacitor, and a variable frequency generating device thereof. The variable inductance applying device includes: a first inductor whose both terminals are connected to an inductance applying terminal applying inductance to an external circuit; a second inductor inductively coupled to the first inductor; and a variable capacitor connected to both terminals of the second inductor, which varies inductance from the inductance applying terminal by changing capacitance. Therefore, the inductance to be applied to the external circuit can be varied by changing the capacitance of the variable capacitor. Since the variable capacitor rarely contains a resistance component, energy loss due to the resistance component hardly occurs. As a result, the variable inductance applying device has a high value of Q.
摘要翻译：公开了一种使用可变电容器的可变电感施加装置及其可变频率发生装置。可变电感施加装置包括：第一电感器，其两个端子连接到电感施加端子，将电感施加到外部电路; 电感耦合到第一电感器的第二电感器; 以及连接到第二电感器的两个端子的可变电容器，其通过改变电容来改变来自电感施加端子的电感。因此，可以通过改变可变电容器的电容来改变施加到外部电路的电感。由于可变电容器很少包含电阻分量，所以几乎不发生由电阻分量引起的能量损失。结果，可变电感施加装置具有高的Q值。

8. 发明申请

US20060181363A1 Parallel-structured switched variable inductor circuit 有权
标题翻译：并联结构的可变电感电路
公开(公告)号：US20060181363A1
公开(公告)日：2006-08-17
申请号：US11353965
申请日：2006-02-15
申请人： Yun-seong Eo , Hee-mun Bang , Kwang-du Lee , Heung-bae Lee
发明人： Yun-seong Eo , Hee-mun Bang , Kwang-du Lee , Heung-bae Lee
IPC分类号： H03B5/08
CPC分类号： H01F21/12 , H03B5/1203 , H03B5/1218 , H03B5/1228 , H03B5/1268 , H03B2200/0048 , H03B2201/0216 , H03B2201/025 , H03J5/244 , H03J2200/15
摘要： An inductor circuit includes a pair of inductors connected in parallel with each other and a switch for turning on and off electric power to one of the pair of inductors. The inductance of the inductor circuit can be varied and the quality factor Q can be improved. Further, RF circuits employing the inductor circuit can generate an intended operating frequency.
摘要翻译：电感器电路包括彼此并联连接的一对电感器和用于将电力接通和断开到该对电感器之一的开关。可以改变电感电路的电感，提高品质因数Q。此外，采用电感电路的RF电路可以产生预期的工作频率。

9. 发明授权

US08340606B2 Doherty amplifier and transmitter using mixer 有权
标题翻译： Doherty放大器和发射机使用混音器
公开(公告)号：US08340606B2
公开(公告)日：2012-12-25
申请号：US11431501
申请日：2006-05-11
申请人： Jin-soo Park , Do-hyung Kim , Jin-wook Burm , Seong-soo Lee , Heung-bae Lee
发明人： Jin-soo Park , Do-hyung Kim , Jin-wook Burm , Seong-soo Lee , Heung-bae Lee
IPC分类号： H04B1/40
CPC分类号： H04B1/04 , H03F3/24 , H04B2001/0408
摘要： A transmitter and a signal amplifier are provided. The signal amplifier includes a digital-to-analog converter converting an input digital signal into an analog signal, a local oscillator signal generator outputting in-phase and quadrature-phase oscillator signals, a first mixer mixing the analog signal with the in-phase local oscillator signal to output an in-phase high frequency signal, a second mixer mixing the analog signal with the quadrature-phase local oscillator signal to output a quadrature-phase high frequency signal, a main amplifier amplifying the in-phase high frequency signal output from the first mixer, and an auxiliary amplifier amplifying the quadrature-phase high frequency signal output from the second mixer.
摘要翻译：提供发射机和信号放大器。信号放大器包括将输入数字信号转换为模拟信号的数模转换器，输出同相和正交相位振荡器信号的本地振荡器信号发生器，将模拟信号与同相本地振荡器信号以输出同相高频信号，第二混频器将模拟信号与正交相位本地振荡器信号混合以输出正交相位高频信号，主放大器放大从第一混频器和放大从第二混频器输出的正交相位高频信号的辅助放大器。

10. 发明授权

US07804361B2 Low noise amplifier 失效
标题翻译：低噪声放大器
公开(公告)号：US07804361B2
公开(公告)日：2010-09-28
申请号：US12195615
申请日：2008-08-21
申请人： Hyung-sun Lim , Jin-soo Park , Heung-bae Lee , Young-eil Kim , Sang-yoon Jeon , Ick-jin Kwon , Bum-man Kim , Je-hyung Yoon
发明人： Hyung-sun Lim , Jin-soo Park , Heung-bae Lee , Young-eil Kim , Sang-yoon Jeon , Ick-jin Kwon , Bum-man Kim , Je-hyung Yoon
IPC分类号： H03F3/45
CPC分类号： H03F3/45179 , H03F1/3211 , H03F3/193 , H03F2200/294 , H03F2203/45306 , H03F2203/45468 , H03F2203/45638
摘要： A low noise amplifier is provided. The low noise amplifier includes: a low noise amplifying unit amplifying an input signal; a harmonic and noise generating unit disposed in an input terminal of the low noise amplifying unit, for generating a compensating signal for compensating for an intermodulation distortion signal and a thermal noise signal of the input signal to the low noise amplifying unit; and a load unit outputting the amplified input signal generated by the low noise amplifying unit.
摘要翻译：提供了一个低噪声放大器。低噪声放大器包括：放大输入信号的低噪声放大单元; 谐波噪声产生单元，设置在所述低噪声放大单元的输入端子中，用于产生用于补偿所述输入信号到所述低噪声放大单元的互调失真信号和热噪声信号的补偿信号; 以及输出由低噪声放大单元生成的放大的输入信号的负载单元。

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