公开(公告)号：US06882226B2

公开(公告)日：2005-04-19

申请号：US10438047

申请日：2003-05-15

申请人： Youngho Cho ,  Bo-Eun Kim ,  Bonkee Kim

发明人： Youngho Cho ,  Bo-Eun Kim ,  Bonkee Kim

IPC分类号： H03G1/00 ,  H03G3/30 ,  H03F1/36

CPC分类号： H03F1/342 ,  H03F3/45183 ,  H03F2200/108 ,  H03F2200/117 ,  H03F2200/141 ,  H03F2203/45532 ,  H03G1/007

摘要： A broadband variable gain amplifier with improved linearity and gain characteristic is provided. According to the present invention, the broadband variable gain amplifier comprises: an amplification unit for amplifying an input signal applied to an input terminal and outputting an amplified signal to an output terminal; and a gain control unit which is connected between the input and output terminals, and for controlling gain of said amplification unit, wherein said gain control unit comprises: a variable resistance unit whose resistance value is varied according to a control signal; and a broadband matching unit for proving an optimal impedance characteristic to the input terminal said amplification unit in a broad band, where in said variable gain resistance unit and said broadband matching unit is connected in parallel.

摘要翻译： 提供了具有改善的线性度和增益特性的宽带可变增益放大器。 根据本发明，宽带可变增益放大器包括：放大单元，用于放大施加到输入端的输入信号，并将放大的信号输出到输出端; 以及增益控制单元，其连接在所述输入和输出端子之间并用于控制所述放大单元的增益，其中所述增益控制单元包括：电阻值根据控制信号而变化的可变电阻单元; 以及宽带匹配单元，用于向所述放大单元在宽带中证明最佳阻抗特性，其中所述可变增益电阻单元和所述宽带匹配单元并联连接。

公开(公告)号：US20070176747A1

公开(公告)日：2007-08-02

申请号：US11556505

申请日：2006-11-03

申请人： Kyoung On Yang ,  Jeiyoung Lee ,  Bonkee Kim ,  Bo-Eun Kim

发明人： Kyoung On Yang ,  Jeiyoung Lee ,  Bonkee Kim ,  Bo-Eun Kim

IPC分类号： H04Q5/22

CPC分类号： G06K7/0008

摘要： Provided is a reader for radio frequency identification (RFID) and a RFID system. A reader for RFID that receives a channel signal comprises a frequency oscillator generating an oscillating signal at a frequency that is offset by an offset frequency from a center frequency of the channel signal, a mixer mixing the channel signal with the oscillating signal that is offset, and a filter filtering a mixed frequency signal provided from the mixer. The reader for RFID and the RFID system are improved in reception for the wave identification using a listen before talk (LBT) mode for identifying an electronic tag.

摘要翻译： 提供了一种用于射频识别（RFID）和RFID系统的读取器。 用于接收信道信号的用于RFID的读取器包括频率振荡器，该频率振荡器以频率偏移来自信道信号的中心频率的偏移频率产生振荡信号，混频器将信道信号与偏移的振荡信号混合， 以及对从混合器提供的混合频率信号进行滤波的滤波器。 用于RFID和RFID系统的读取器在用于识别电子标签的用于听话（LBT）模式的波识别的接收中被改进。

公开(公告)号：US20070117532A1

公开(公告)日：2007-05-24

申请号：US11463634

申请日：2006-08-10

申请人： Bonkee Kim ,  Bo-Eun Kim

发明人： Bonkee Kim ,  Bo-Eun Kim

IPC分类号： H04H1/00 ,  H04B1/16

CPC分类号： H03J1/005 ,  H04B1/0064 ,  H04B1/0082 ,  H04B1/30 ,  H04H40/18 ,  H04H2201/11 ,  H04H2201/20

摘要： Provided is a terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver. A T-DMB and DAB low IF receiver comprises a low noise amplifier (LNA), an image rejection down-conversion mixer, a low pass filter, an amplifier, a local oscillator, and a phase-locked loop. Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the local oscillator, and the phase-locked loop are integrated in a monolithic semiconductor integrated circuit substrate. Using the T-DMB and DAB low IF receiver allows a removal of a conventional SAW filter and the T-DMB and DAB low IF receiver can be easily integrated in the monolithic semiconductor integrated circuit substrate, and manufactured at low costs.

摘要翻译： 提供了地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机。 T-DMB和DAB低中频接收机包括低噪声放大器（LNA），镜像抑制下变频混频器，低通滤波器，放大器，本地振荡器和锁相环。 特别地，LNA，图像抑制下变频混频器，低通滤波器，放大器，本地振荡器和锁相环集成在单片半导体集成电路基板中。 使用T-DMB和DAB低IF接收器可以去除传统的SAW滤波器，而T-DMB和DAB低IF接收器可以轻松集成在单片半导体集成电路基板中，并以低成本制造。

公开(公告)号：US20070042742A1

公开(公告)日：2007-02-22

申请号：US11463639

申请日：2006-08-10

申请人： Bonkee Kim ,  Bo-Eun Kim

发明人： Bonkee Kim ,  Bo-Eun Kim

IPC分类号： H04B1/26

CPC分类号： H04B1/28 ,  H04B1/30

摘要： A terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver comprises a low noise amplifier (LNA), an image rejection down-conversion mixer, a low pass filter, an amplifier, a local oscillator, a phase-locked loop, and an automatic gain controller (AGC). Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the AGC, the local oscillator, and the phase-locked loop are integrated in monolithic semiconductor integrated circuit substrate. The AGC supplies a gain control signal to the LNA and the amplifier according to the magnitude of the RF signal, and the gain control signal is controlled by a null control signal based on a null signal comprised in a received radio frequency (RF) signal.

摘要翻译： 地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机包括低噪声放大器（LNA），镜像抑制下变频混频器，低通滤波器，放大器， 本地振荡器，锁相环和自动增益控制器（AGC）。 特别地，LNA，图像抑制下变频混频器，低通滤波器，放大器，AGC，本地振荡器和锁相环集成在单片半导体集成电路基板中。 AGC根据RF信号的幅度向LNA和放大器提供增益控制信号，并且基于包含在接收的射频（RF））信号中的零信号，通过零控制信号来控制增益控制信号。

公开(公告)号：US07756499B2

公开(公告)日：2010-07-13

申请号：US11843322

申请日：2007-08-22

申请人： Bonkee Kim ,  Bo-Eun Kim

发明人： Bonkee Kim ,  Bo-Eun Kim

IPC分类号： H04B1/06 ,  H04L27/08

CPC分类号： H03G3/3068

摘要： The receiver comprises a variable gain amplification unit, a mixing unit, a filtering unit, and three compensation unit. Each compensation unit detects powers of the signal amplified in the variable gain amplification unit, the signal down-converted in the mixing unit and the signal filtered in the filtering unit. A gain of the variable gain amplification unit is adjusted based on the powers detected by three compensation units.

摘要翻译： 接收机包括可变增益放大单元，混合单元，滤波单元和三个补偿单元。 每个补偿单元检测在可变增益放大单元中放大的信号的功率，在混合单元中被下变频的信号和在滤波单元中滤波的信号。 基于由三个补偿单元检测的功率来调整可变增益放大单元的增益。

公开(公告)号：US20070042730A1

公开(公告)日：2007-02-22

申请号：US11463643

申请日：2006-08-10

申请人： Bonkee Kim ,  Bo-Eun Kim

发明人： Bonkee Kim ,  Bo-Eun Kim

IPC分类号： H04B7/08 ,  H04B1/18

CPC分类号： H04B17/21 ,  H04B7/0842

摘要： Provided is a terrestrial-digital multimedia broadcasting (T-DMB) and digital audio broadcasting (DAB) low intermediate frequency (IF) receiver. A T-DMB and DAB low IF receiver comprises a low noise amplifier (LNA), an image rejection down-conversion mixer, a low pass filter, an amplifier, a local oscillator, a phase-locked loop, and at least one high pass filter. Particularly, the LNA, the image rejection down-conversion mixer, the low pass filter, the amplifier, the local oscillator, the phase-locked loop, and the high pass filter are integrated in a monolithic semiconductor integrated circuit substrate. The T-DMB and DAB low IF receiver allows a removal of a conventional SAW filter without degrading the performance of the receiver. Thus, the T-DMB and DAB low IF receiver can be easily integrated into a single and manufactured at low costs.

摘要翻译： 提供了地面数字多媒体广播（T-DMB）和数字音频广播（DAB）低中频（IF）接收机。 T-DMB和DAB低中频接收机包括低噪声放大器（LNA），镜像抑制下变频混频器，低通滤波器，放大器，本地振荡器，锁相环以及至少一个高通 过滤。 具体地，单片半导体集成电路基板中集成有LNA，图像抑制下变频混频器，低通滤波器，放大器，本地振荡器，锁相环和高通滤波器。 T-DMB和DAB低IF接收器允许去除传统的SAW滤波器而不降低接收机的性能。 因此，T-DMB和DAB低IF接收机可以轻松集成到一个单一的并以低成本制造。

公开(公告)号：US20080051050A1

公开(公告)日：2008-02-28

申请号：US11843322

申请日：2007-08-22

申请人： Bonkee Kim ,  Bo-Eun Kim

发明人： Bonkee Kim ,  Bo-Eun Kim

IPC分类号： H04B1/06

CPC分类号： H03G3/3068

摘要： The receiver comprises a variable gain amplification unit, a mixing unit, a filtering unit, and three compensation unit. Each compensation unit detects powers of the signal amplified in the variable gain amplification unit, the signal down-converted in the mixing unit and the signal filtered in the filtering unit. A gain of the variable gain amplification unit is adjusted based on the powers detected by three compensation units.

摘要翻译： 接收机包括可变增益放大单元，混合单元，滤波单元和三个补偿单元。 每个补偿单元检测在可变增益放大单元中放大的信号的功率，在混合单元中被下变频的信号和在滤波单元中滤波的信号。 基于由三个补偿单元检测的功率来调整可变增益放大单元的增益。

公开(公告)号：US20070176746A1

公开(公告)日：2007-08-02

申请号：US11551658

申请日：2006-10-20

申请人： Jeiyoung Lee ,  Kyoung On Yang ,  Bonkee Kim ,  Bo-Eun Kim

发明人： Jeiyoung Lee ,  Kyoung On Yang ,  Bonkee Kim ,  Bo-Eun Kim

IPC分类号： H04Q5/22

CPC分类号： G06K7/0008 ,  G06K7/10069 ,  H04B1/403 ,  H04B1/525

摘要： Provided are a radio frequency identification (RFID) reader and a RFID system. Particularly, the RFID reader uses a listen before talk (LBT) mode to identify. A reader for RFID comprises a data path block receiving a tag data signal, a search path block receiving a channel search signal, and a path selection block selecting one of the data path block and the search path block.

摘要翻译： 提供射频识别（RFID）读取器和RFID系统。 特别地，RFID读取器使用听话（LBT）模式来识别。 用于RFID的读取器包括接收标签数据信号的数据路径块，接收信道搜索信号的搜索路径块和选择数据路径块和搜索路径块之一的路径选择块。

公开(公告)号：US20070047870A1

公开(公告)日：2007-03-01

申请号：US11488997

申请日：2006-07-19

申请人： Minsu Jeong ,  Bo-Eun Kim ,  Bonkee Kim

发明人： Minsu Jeong ,  Bo-Eun Kim ,  Bonkee Kim

IPC分类号： G02B6/12

CPC分类号： H01L25/18 ,  H01L25/0657 ,  H01L2224/48091 ,  H04N5/4401 ,  H04N5/46 ,  H04N21/426 ,  H04N21/6112 ,  H04N21/6143 ,  H01L2924/00014

摘要： The present invention relates to a receiver chip formed on a monolithic semiconductor integrated circuit substrate. The receiver chip comprises a first receiver chip for receiving terrestrial digital multimedia broadcasting signals, a second receiver chip for receiving satellite digital multimedia broadcasting signals, and the monolithic semiconductor integrated circuit substrate. The first and second receiver chips are stacked and bonded on the monolithic semiconductor integrated circuit substrate.

摘要翻译： 本发明涉及形成在单片半导体集成电路基板上的接收芯片。 接收器芯片包括用于接收地面数字多媒体广播信号的第一接收器芯片，用于接收卫星数字多媒体广播信号的第二接收器芯片和单片半导体集成电路基板。 第一和第二接收器芯片堆叠并结合在单片半导体集成电路基板上。

公开(公告)号：US06756924B2

公开(公告)日：2004-06-29

申请号：US10438941

申请日：2003-05-16

申请人： Junghwan Lee ,  Bo-Eun Kim ,  Jinkyu Lim ,  Minsu Jeong ,  Bonkee Kim

发明人： Junghwan Lee ,  Bo-Eun Kim ,  Jinkyu Lim ,  Minsu Jeong ,  Bonkee Kim

IPC分类号： H03M110

CPC分类号： H03F3/45995 ,  H03F2200/294 ,  H03F2200/372

摘要： A signal processing apparatus for correcting DC offset in a communication system is provided. The signal processing apparatus comprises: a low noise amplifier (LNA) 301; a mixer 303 for mixing the output from said LNA 301 with local oscillation signal LO; a first offset correction amplifier 305 for amplifying output signal from said mixer 303 and for eliminating DC offset in the output signal in accordance with first control signal Vc31; a second offset correction amplifier 309 for amplifying output signal from said first offset correction amplifier 305 and for eliminating DC offset in the output signal in accordance with second control signal Vc32; a variable gain amplifier 311 for amplifying output from said second offset correction amplifier 309 wherein gain is controlled such that power level of output be maintained to a desired value; offset calibration mean 313 for calibrating DC offset in output from said variable gain amplifier 311; and offset correction mean 315 for outputting the first and second control signals Vc31 and Vc32 in accordance with the output from said offset calibration mean 313, to eliminate DC offset in the output from said variable gain amplifier 311.

摘要翻译： 提供一种用于校正通信系统中的DC偏移的信号处理装置。 信号处理装置包括：低噪声放大器（LNA）301; 用于将来自所述LNA 301的输出与本地振荡信号LO混频的混频器303; 用于放大来自所述混频器303的输出信号并根据第一控制信号Vc31消除输出信号中的DC偏移的第一偏移校正放大器305; 第二偏移校正放大器309，用于放大来自所述第一偏移校正放大器305的输出信号，并根据第二控制信号Vc32消除输出信号中的DC偏移; 用于放大来自所述第二偏移校正放大器309的输出的可变增益放大器311，其中增益被控制使得输出的功率电平保持到期望值; 用于校准来自所述可变增益放大器311的输出中的直流偏移的偏移校准平均值313; 以及偏移校正平均值315，用于根据所述偏移校准平均值313的输出输出第一和第二控制信号Vc31和Vc32，以消除所述可变增益放大器311的输出中的DC偏移。