公开(公告)号：US09116034B2

公开(公告)日：2015-08-25

申请号：US13824005

申请日：2011-09-14

Applicant: Sang Sik Yang ,  Ik Mo Park ,  Young kil Kim ,  Kee Keun Lee ,  Ick Jin Kwon ,  Hae Kwan Oh

Inventor： Sang Sik Yang ,  Ik Mo Park ,  Young kil Kim ,  Kee Keun Lee ,  Ick Jin Kwon ,  Hae Kwan Oh

IPC: G01N29/00 ,  G01H17/00 ,  G01N29/02 ,  G01N29/24 ,  G06K19/067 ,  G06K19/07 ,  G01D21/00 ,  G01L9/00 ,  G01L1/16

CPC classification number: G01H17/00 ,  G01D21/00 ,  G01L1/165 ,  G01L9/0025 ,  G01N29/022 ,  G01N29/2481 ,  G01N2291/0256 ,  G01N2291/0423 ,  G06K19/0675 ,  G06K19/0717

Abstract: A wireless measurement device includes a sound acoustic wave (SAW)-based micro sensor converting a wirelessly received pulse signal into an SAW and generating a plurality of pulse signals by reflecting the SAW, and wirelessly transmitting the plurality of pulse signals to measure a variance of an environmental element; and a reader generating and wirelessly transmitting a pulse signal to the SAW-based micro sensor to measure variances in environmental elements.

Abstract translation: 无线测量装置包括基于声波（SAW）的微型传感器，其将无线接收的脉冲信号转换成SAW并通过反射SAW产生多个脉冲信号，并且无线发送多个脉冲信号以测量 环境因素 以及读取器，生成并将脉冲信号无线发送到基于SAW的微型传感器，以测量环境因素的变化。

公开(公告)号：US08120464B2

公开(公告)日：2012-02-21

申请号：US11634099

申请日：2006-12-06

Applicant: Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

Inventor： Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

IPC: G08B21/00

CPC classification number: G06K7/0008 ,  H04B1/525 ,  H04B1/59

Abstract: A radio frequency identification (RFID) reader is provided, having a transmitting circuit that generates a transmitted signal to operate an RFID tag, a receiving circuit that receives a received signal including a tag signal from the RFID tag and a transmission carrier leakage signal leaking from the transmitting circuit, and a leakage removing circuit that senses a phase and amplitude of the transmission carrier leakage signal inputted to the receiving circuit, converts the transmitted signal from the transmitting circuit into a signal having a phase opposite to that of the transmission carrier leakage signal and an amplitude equal to that of the transmission carrier leakage signal, and synthesizes the converted signal and the received signal inputted to the receiving circuit.

Abstract translation: 提供了一种射频识别（RFID）读取器，其具有产生用于操作RFID​​标签的发送信号的发送电路，接收来自RFID标签的包含标签信号的接收信号的接收电路以及从RFID标签泄漏的发送载波泄漏信号 发送电路和检测输入到接收电路的传输载波泄漏信号的相位和幅度的泄漏消除电路将来自发送电路的发送信号转换成具有与发送载波泄漏信号相反的相位的信号 振幅等于发射载波泄漏信号的振幅，并将转换的信号和输入到接收电路的接收信号合成。

公开(公告)号：US07702047B2

公开(公告)日：2010-04-20

申请号：US11435941

申请日：2006-05-18

Applicant: Ick Jin Kwon ,  Heung Bae Lee ,  Yun Seong Eo

Inventor： Ick Jin Kwon ,  Heung Bae Lee ,  Yun Seong Eo

IPC: H04B1/10 ,  H04L27/06 ,  H04L27/22

CPC classification number: H04B1/525

Abstract: An RF receiving apparatus and method which can remove a leakage component in a received signal are provided. In the RF receiving apparatus, a noise removing unit estimates a signal corresponding to a noise component introduced into a received RF signal RXIN by controlling a gain and a phase of a local signal LOI and removes the estimated noise signal from the received RF signal RXIN. An RF signal in which the noise is removed is frequency-down converted in a receiving unit. Also, the noise removing unit utilizes a Q signal of the local signal LOI, LOQ, to control the phase of the local signal LOI.

Abstract translation: 提供了可以消除接收信号中的泄漏分量的RF接收装置和方法。 在RF接收设备中，噪声去除单元通过控制本地信号LOI的增益和相位来估计与被接收的RF信号RXIN中引入的噪声分量相对应的信号，并从接收的RF信号RXIN去除估计的噪声信号。 消除噪声的RF信号在接收单元中被降频转换。 此外，噪声去除单元利用本地信号LOI，LOQ的Q信号来控制本地信号LOI的相位。

公开(公告)号：US20070290754A1

公开(公告)日：2007-12-20

申请号：US11594812

申请日：2006-11-09

Applicant: Dong Hyun Lee ,  Heung Bae Lee ,  Ick Jin Kwon ,  Ju No Kim ,  Ka Ram Ann

Inventor： Dong Hyun Lee ,  Heung Bae Lee ,  Ick Jin Kwon ,  Ju No Kim ,  Ka Ram Ann

IPC: H03F3/45

CPC classification number: H03F3/45188 ,  H03F1/26 ,  H03F3/3022 ,  H03F3/45475 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/451 ,  H03F2200/492 ,  H03F2203/45138 ,  H03F2203/45302 ,  H03F2203/45316 ,  H03F2203/45318 ,  H03F2203/45386 ,  H03F2203/45394 ,  H03F2203/45512 ,  H03F2203/45638

Abstract: Provided is an amplifier including: an amplifier circuit receiving differential signals to generate amplified differential signals; a buffer generating buffered signals by buffering each signal generated by controlling a direct current (DC) component of the differential signals; and an impedance matching device coupled between two terminals wherein each of the buffered signals is added with each of the amplified differential signal.

Abstract translation: 提供一种放大器，包括：放大器电路，接收差分信号以产生放大的差分信号; 通过缓冲通过控制所述差分信号的直流（DC）分量产生的每个信号来产生缓冲信号的缓冲器; 以及耦合在两个终端之间的阻抗匹配装置，其中每个缓冲信号被加上放大的差分信号中的每一个。

公开(公告)号：US20070194886A1

公开(公告)日：2007-08-23

申请号：US11634099

申请日：2006-12-06

Applicant: Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

Inventor： Hee-mun Bang ,  Yun-seong Eo ,  Ick-jin Kwon ,  Heung-bae Lee

IPC: H04Q5/22

CPC classification number: G06K7/0008 ,  H04B1/525 ,  H04B1/59

Abstract: A radio frequency identification (RFID) reader is provided, having a transmitting circuit that generates a transmitted signal to operate an RFID tag, a receiving circuit that receives a received signal including a tag signal from the RFID tag and a transmission carrier leakage signal leaking from the transmitting circuit, and a leakage removing circuit that senses a phase and amplitude of the transmission carrier leakage signal inputted to the receiving circuit, converts the transmitted signal from the transmitting circuit into a signal having a phase opposite to that of the transmission carrier leakage signal and an amplitude equal to that of the transmission carrier leakage signal, and synthesizes the converted signal and the received signal inputted to the receiving circuit.

Abstract translation: 提供了一种射频识别（RFID）读取器，其具有产生用于操作RFID​​标签的发送信号的发送电路，接收来自RFID标签的包含标签信号的接收信号的接收电路以及从RFID标签泄漏的发送载波泄漏信号 发送电路和检测输入到接收电路的传输载波泄漏信号的相位和幅度的泄漏消除电路将来自发送电路的发送信号转换成具有与发送载波泄漏信号相反的相位的信号 振幅等于发射载波泄漏信号的振幅，并将转换的信号和输入到接收电路的接收信号合成。

公开(公告)号：US07259643B2

公开(公告)日：2007-08-21

申请号：US11062600

申请日：2005-02-22

Applicant: Mi-hyun Son ,  Seong-soo Lee ,  Kwy-ro Lee ,  Min-kyung Lee ,  Ick-jin Kwon

Inventor： Mi-hyun Son ,  Seong-soo Lee ,  Kwy-ro Lee ,  Min-kyung Lee ,  Ick-jin Kwon

IPC: H03H7/00

CPC classification number: H03H7/0161 ,  H03H7/0115 ,  H03H7/175 ,  H03H7/1758 ,  H03H2210/012 ,  H03H2210/015 ,  H03H2210/025 ,  H03J2200/10

Abstract: A tunable wideband bandpass filter that can digitally vary the center frequency and bandwidth of a signal to be filtered, and includes a plurality of switched-capacitor banks for varying capacitance and converting the center frequency and bandwidth into a digital signal, and a plurality of inductors provided for inductance to generate the center frequency, the plurality of switched-capacitor banks that may be integrated into a signal chip.

Abstract translation: 一种可以数字地改变要滤波的信号的中心频率和带宽的可调宽带带通滤波器，并且包括用于改变电容并将中心频率和带宽转换为数字信号的多个开关电容器组，以及多个电感器 提供用于产生中心频率的电感，可以集成到信号芯片中的多个开关电容器组。

公开(公告)号：US20050282510A1

公开(公告)日：2005-12-22

申请号：US11147206

申请日：2005-06-08

Applicant: Hee-mun Bang ,  Ick-jin Kwon ,  Kwy-ro Lee ,  Seong-soo Lee ,  Heung-bae Lee

Inventor： Hee-mun Bang ,  Ick-jin Kwon ,  Kwy-ro Lee ,  Seong-soo Lee ,  Heung-bae Lee

IPC: H01Q11/12 ,  H03D7/14 ,  H04B1/18

CPC classification number: H03D7/1441 ,  H03D7/145 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0033 ,  H03D2200/0047 ,  H03D2200/0084

Abstract: A linear mixer circuit with a current amplifier has an excellent linearity by using RF open-load and an improved current amplifier. Therefore, a voltage-current converting stage and a current-voltage converting stage in a conventional mixer circuit can be omitted. Further, by using the RF open-load and the current amplifier together, a current type input signal can be transmitted as it is, and non-linearity due to the voltage-current converting stage and the current-voltage converting stage can be prevented. Furthermore, bias current of the amplifying stage and the switching stage can be separated by using the RF open-load, so that an image frequency can be filtered by the RF open-load.

Abstract translation: 具有电流放大器的线性混频器电路通过使用RF开路负载和改进的电流放大器具有优异的线性度。 因此，可以省略常规混频器电路中的电压 - 电流转换级和电流 - 电压转换级。 此外，通过一起使用RF开路负载和电流放大器，可以直接发送电流型输入信号，并且可以防止由于电压 - 电流转换级和电流 - 电压转换级引起的非线性。 此外，可以通过使用RF开路负载来分离放大级和开关级的偏置电流，使得可以通过RF开路负载来滤除图像频率。

公开(公告)号：US20050184828A1

公开(公告)日：2005-08-25

申请号：US11062600

申请日：2005-02-22

Applicant: Mi-hyun Son ,  Seong-soo Lee ,  Kwy-ro Lee ,  Min-kyung Lee ,  Ick-jin Kwon

Inventor： Mi-hyun Son ,  Seong-soo Lee ,  Kwy-ro Lee ,  Min-kyung Lee ,  Ick-jin Kwon

IPC: H01P1/20 ,  H03H7/01 ,  H03H7/12

CPC classification number: H03H7/0161 ,  H03H7/0115 ,  H03H7/175 ,  H03H7/1758 ,  H03H2210/012 ,  H03H2210/015 ,  H03H2210/025 ,  H03J2200/10

Abstract: A tunable wideband bandpass filter that can digitally vary the center frequency and bandwidth of a signal to be filtered, and includes a plurality of switched-capacitor banks for varying capacitance and converting the center frequency and bandwidth into a digital signal, and a plurality of inductors provided for inductance to generate the center frequency, the plurality of switched-capacitor banks that may be integrated into a signal chip.

Abstract translation: 一种可以数字地改变要滤波的信号的中心频率和带宽的可调宽带带通滤波器，并且包括用于改变电容并将中心频率和带宽转换为数字信号的多个开关电容器组，以及多个电感器 提供用于产生中心频率的电感，可以集成到信号芯片中的多个开关电容器组。

公开(公告)号：US08320582B2

公开(公告)日：2012-11-27

申请号：US12122790

申请日：2008-05-19

Applicant: Ick-jin Kwon ,  Jae-sup Lee ,  Han-woong Yoo

Inventor： Ick-jin Kwon ,  Jae-sup Lee ,  Han-woong Yoo

IPC: H04B15/00

CPC classification number: H04B1/12 ,  H04B1/1027

Abstract: An interference signal removing apparatus of a radio frequency (RF) receiver includes a low noise amplification unit which performs low noise amplification, a feedback processing unit which removes a necessary signal in a desired band from a signal output from the low noise amplification unit, and performs feedback of the signal from which the necessary signal is removed, and a signal processing unit which transmits a processed RF signal by synthesizing an input RF signal and the feedback signal to the noise amplification unit.

Abstract translation: 射频（RF）接收机的干扰信号去除装置包括执行低噪声放大的低噪声放大单元，反馈处理单元，从低噪声放大单元输出的信号中去除期望频带中的必要信号;以及 执行去除必要信号的信号的反馈;以及信号处理单元，其通过将输入的RF信号和反馈信号合成到噪声放大单元来发送经处理的RF信号。

公开(公告)号：US20090215421A1

公开(公告)日：2009-08-27

申请号：US12169073

申请日：2008-07-08

Applicant: Hyung-sun LIM ,  Jin-soo Park ,  Heung-bae Lee ,  Young-eil Kim ,  Sang-yoon Jeon ,  Ick-jin Kwon ,  Bum-man Kim ,  Chang-joon Park

Inventor： 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: H04B1/26

CPC classification number: H04B1/28

Abstract: 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 interferer 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 sampled signal into a frequency band that enables the sampled signal to be converted into a digital signal and restricts interferer 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.

Abstract translation: 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;采样单元，其执行采样以将放大的信号转换为离散时域信号;频率转换单元 其将采样信号下变频成使得采样信号能够被转换为数字信号的频带，并且根据采样频率来限制来自混叠频带内的频率的干扰源;抗混叠滤波单元，其防止来自 降频转换信号，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为数字信号的模数转换器。