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1. 发明授权

US09473186B2 Method of controlling receiver gain automatically and apparatus for automatic gain control in receiver 有权
标题翻译：自动控制接收机增益的方法和接收机自动增益控制的方法
公开(公告)号：US09473186B2
公开(公告)日：2016-10-18
申请号：US14516878
申请日：2014-10-17
申请人： GCT Semiconductor, Inc.
发明人： Inho Song , Ei Ho Lee , Ki Tae Moon
IPC分类号： H04B1/12 , H04B1/16 , H03F3/189 , H03G3/30 , H04B1/04
CPC分类号： H04B1/16 , H03F3/189 , H03F2200/294 , H03G3/3068 , H03G3/3078 , H04B1/126 , H04B2001/0416
摘要： A method of controlling an automatic gain in a receiver includes receiving an input signal through an antenna of the receiver, by an automatic gain control unit of the receiver, setting a final RF gain, and by the automatic gain control unit, setting an IF gain in a state that the final RF gain is set.
摘要翻译：一种控制接收机中的自动增益的方法，包括接收机的天线，接收机的自动增益控制单元接收输入信号，设定最终的RF增益，以及由自动增益控制单元，设定IF增益在最终RF增益被设置的状态下。

2. 发明授权

US08583064B2 Receiver for estimating and compensating for in-phase/quadrature mismatch 有权
标题翻译：用于估计和补偿同相/正交失配的接收器
公开(公告)号：US08583064B2
公开(公告)日：2013-11-12
申请号：US13272779
申请日：2011-10-13
申请人： Young Hwan Kang , Jiyoung Cho , Suwon Kang
发明人： Young Hwan Kang , Jiyoung Cho , Suwon Kang
IPC分类号： H04B1/04
CPC分类号： H04L27/3863 , H03D3/009 , H04B1/30
摘要： A receiver includes a first mixer configured to provide an in-phase (I) component of a radio frequency (RF) signal to an I channel by down-converting the RF signal, a second mixer configured to provide a quadrature (Q) component of the RF signal to a Q channel by down-converting the RF signal, amplification means, arranged on the I and Q channels, configured to amplify the I and Q components, a mismatch estimator configured to convert the amplified I and Q components into a frequency domain, and estimate a gain mismatch value and a phase mismatch value on the basis of the converted components, and a mismatch compensator configured to compensate for mismatch of the received signal on the basis of the estimated gain and phase mismatch values.
摘要翻译：接收机包括：第一混频器，被配置为通过对RF信号进行下变频来向I信道提供射频（RF）信号的同相（I）分量;第二混频器，被配置为提供正交（Q）分量通过对RF信号进行降频转换到Q通道的RF信号，布置在I和Q通道上的放大装置，被配置为放大I和Q分量;配置为将放大的I和Q分量转换成频率的失配估计器域，并且基于转换的分量来估计增益失配值和相位失配值，以及失配补偿器，被配置为基于估计的增益和相位失配值来补偿接收信号的失配。

3. 发明申请

US20060068737A1 Sigma-delta based phase lock loop 有权
公开(公告)号：US20060068737A1
公开(公告)日：2006-03-30
申请号：US11227909
申请日：2005-09-16
申请人： Yido Koo , Youngho Ahn , Eunseok Song , Jeong-Woo Lee , Joonbae Park , Kyeongho Lee
发明人： Yido Koo , Youngho Ahn , Eunseok Song , Jeong-Woo Lee , Joonbae Park , Kyeongho Lee
IPC分类号： H04B1/40 , H04B7/00 , H03D3/24 , H04B1/06
CPC分类号： H03L7/0895 , H03L7/1976
摘要： A sigma-delta based phase lock loop device is provided that includes a phase frequency detector (PFD), a charge pump and a voltage controlled oscillator. The PFD to receive a reference signal and a feedback signal and to output signals based on a comparison of the reference signal and the feedback signal. The charge pump to output a charge based on the output signals from the PFD. The charge pump including a first current source to apply a fixed amount of current and a second current source to apply a variable amount of current. The voltage controlled oscillator to output a clock signal based on the received charge from the charge pump.

4. 发明授权

US06850748B2 RF front end with reduced carrier leakage 有权
标题翻译：射频前端具有减少的载波泄漏
公开(公告)号：US06850748B2
公开(公告)日：2005-02-01
申请号：US10207986
申请日：2002-07-31
申请人： Eunseok Song , Seung-Wook Lee , Jeong-Woo Lee , Joonbae Park , Kyeongho Lee
发明人： Eunseok Song , Seung-Wook Lee , Jeong-Woo Lee , Joonbae Park , Kyeongho Lee
IPC分类号： H04B1/28 , H04B1/52 , H04B1/00
CPC分类号： H04B1/28 , H04B1/525
摘要： A method and apparatus that provide a frequency conversion in a radio frequency front-end are disclosed, including a frequency divider that divides an input signal frequency by a predetermined value to produce an output signal frequency; and a frequency mixer that mixes the output signal frequency with a carrier signal frequency to produce a converted signal frequency, which is substantially equal to a difference between the output signal frequency and the carrier signal frequency. The predetermined value and the input signal frequency are selected such that the carrier signal frequency is not substantially equivalent to an integer multiple of the output signal frequency. The method and apparatus can be used in a wireless communication receiver including wireless communication systems and wireless LAN systems.
摘要翻译：公开了一种在射频前端提供频率转换的方法和装置，包括将输入信号频率除以预定值以产生输出信号频率的分频器; 以及混频器，其将输出信号频率与载波信号频率进行混合，以产生基本上等于输出信号频率和载波信号频率之差的转换信号频率。选择预定值和输入信号频率使得载波信号频率基本上不等于输出信号频率的整数倍。该方法和装置可用于包括无线通信系统和无线LAN系统的无线通信接收机。

5. 发明申请

US20030227340A1 LC oscillator with wide tuning range and low phase noise 有权
标题翻译： LC振荡器具有宽调谐范围和低相位噪声
公开(公告)号：US20030227340A1
公开(公告)日：2003-12-11
申请号：US10443835
申请日：2003-05-23
申请人： GCT Semiconductor, Inc.
发明人： Yido Koo , Jeong-Woo Lee , Joonbae Park , Kyeongho Lee
IPC分类号： H03B001/00
CPC分类号： H03L7/099 , H03B5/1215 , H03B5/1228 , H03B5/1265 , H03B2201/025 , H03J2200/10
摘要： A voltage-controlled oscillator including an active oscillator circuit, an inductor, and capacitive circuits is disclosed. The capacitive circuits are selectively turned on and off to control the frequency of the voltage-controlled oscillator. Particularly, the inductor and the capacitors in the capacitive circuits form LC circuits that provide feedback to the active oscillator circuit. To avoid damage to the switches in the capacitive circuits, the capacitive circuits further comprise resistors. The resistors can be configured in several different ways so that the voltage-controlled oscillator can have a high degree of reliability, and a wide tuning range with constant phase noise performance.
摘要翻译：公开了一种包括有源振荡器电路，电感器和电容电路的压控振荡器。电容电路选择性地导通和截止以控制压控振荡器的频率。特别地，电容电路中的电感器和电容器形成LC电路，向有源振荡器电路提供反馈。为了避免损坏电容电路中的开关，电容电路还包括电阻器。电阻器可以以几种不同的方式配置，使得压控振荡器可以具有高可靠性，以及具有恒定相位噪声性能的宽调谐范围。

6. 发明申请

US20030020521A1 Single chip CMOS transmitter/receiver and method of using same 有权
公开(公告)号：US20030020521A1
公开(公告)日：2003-01-30
申请号：US10253534
申请日：2002-09-25
申请人： GCT Semiconductor, Inc.
发明人： Kyeongho Lee , Deog-Kyoon Jeong , Joonbae Park , Wonchan Kim
IPC分类号： H03B019/00
CPC分类号： H04B1/403 , H03F2200/372 , H03H11/22 , H03H2011/0494 , H03K9/00 , H03L7/0891 , H03L7/0995 , H03L7/1974 , H04B1/18 , H04B1/28 , H04B1/40
摘要： A single chip RF communication system and method is provided including a transmitter and a receiver. The RF communication system in accordance with the present invention can include an antenna that receives/transmits RF signals, a PLL that generates multi-phase clock signals having a frequency different from a carrier frequency and a reference signal having the carrier frequency, a demodulation-mixer that mixes the received RF signals with the multi-phase clock signals having the frequency different from the carrier frequency to output signals having a frequency reduced relative to the carrier frequency, two stage amplification that amplifies a selected channel signal to a required dynamic level, and an A/D converting unit for converting the RF signals from the mixing unit into digital signals. The two stage amplification can provide the selected channel signal with sufficient gain, even when an adjacent channel signal is output by the demodulation mixer with greater amplitude or power.

7. 发明申请

US20020190796A1 Variable gain low-noise amplifier for a wireless terminal 有权
标题翻译：用于无线终端的可变增益低噪声放大器
公开(公告)号：US20020190796A1
公开(公告)日：2002-12-19
申请号：US10196136
申请日：2002-07-17
申请人： GCT Semiconductor, Inc.
发明人： Joonbae Park , Hoe-Sam Jeong , Seung-Wook Lee , Won-Seok Lee , Kyeongho Lee
IPC分类号： H03G003/10
CPC分类号： H03F1/223 , H03F3/195 , H03F3/72 , H03F2200/294 , H03F2200/378 , H03F2200/391 , H03F2200/451 , H03F2203/7236 , H03G1/0088
摘要： A variable gain, low noise amplifier is described, which is suitable as the input amplifier for a wireless terminal, or as the pre-amplifier stage of a wireless terminal transmitter. The amplifier may achieve variable gain by deploying a network of transistors in a parallel array, each independently selectable by a PMOS switch, and providing the variable resistance for the resonant circuit. Power dissipation can also be mitigated by using a network of driving transistors, each independently selectable by a PMOS switch. The resonant frequency of the amplifier may be made tunable by providing a selection of optional pull-up capacitors.
摘要翻译：描述了可变增益低噪声放大器，其适用于无线终端的输入放大器，或作为无线终端发射机的前置放大器级。放大器可以通过以并联阵列布置晶体管网络来实现可变增益，每个晶体管可由PMOS开关独立选择，并为谐振电路提供可变电阻。也可以通过使用驱动晶体管的网络来减轻功耗，每个驱动晶体管都可以由PMOS开关独立选择。可以通过提供可选的上拉电容器的选择来使放大器的谐振频率可调。

8. 发明授权

US07952442B2 Integrated circuit package having inductance loop formed from same-pin-to-same-bonding-pad structure 有权
标题翻译：集成电路封装，具有由相同引脚到同一焊盘结构形成的电感环路
公开(公告)号：US07952442B2
公开(公告)日：2011-05-31
申请号：US11274825
申请日：2005-11-16
申请人： Yido Koo , Hyungki Huh , Kang Yoon Lee , Jeong-Woo Lee , Joonbae Park , Kyeongho Lee
发明人： Yido Koo , Hyungki Huh , Kang Yoon Lee , Jeong-Woo Lee , Joonbae Park , Kyeongho Lee
IPC分类号： H03B5/12
CPC分类号： H01L23/645 , H01L24/48 , H01L24/49 , H01L2224/48091 , H01L2224/48247 , H01L2224/49111 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01023 , H01L2924/01033 , H01L2924/01082 , H01L2924/014 , H01L2924/14 , H01L2924/19041 , H01L2924/19042 , H01L2924/19043 , H01L2924/30107 , H01L2924/00 , H01L2224/45099 , H01L2224/05599
摘要： An integrated circuit package includes an inductance loop formed from a connection of bonding wires and one or more input/output (I/O) package pins. In one embodiment, the inductance loop is formed from a first wire which connects a bonding pad on the integrated circuit chip to an I/O pin of the package and a second wire which connects the same bonding pad to the same pin. By forming the inductor loop within the limits of the integrated circuit package, a substantial reduction in space requirements is realized, which, in turn, promotes miniaturization.
摘要翻译：集成电路封装包括由接合线和一个或多个输入/输出（I / O）封装引脚的连接形成的电感环路。在一个实施例中，电感环由将集成电路芯片上的焊盘连接到封装的I / O引脚的第一布线和将相同的焊盘连接到同一引脚的第二布线形成。通过在集成电路封装的极限内形成电感器回路，实现了空间要求的显着降低，这反过来促进了小型化。

9. 发明授权

US07202741B2 Highly linear variable gain amplifier 有权
标题翻译：高线性可变增益放大器
公开(公告)号：US07202741B2
公开(公告)日：2007-04-10
申请号：US11066546
申请日：2005-02-28
申请人： Joonbae Park , Seung-Wook Lee , Jeong-Woo Lee , Kyeongho Lee
发明人： Joonbae Park , Seung-Wook Lee , Jeong-Woo Lee , Kyeongho Lee
IPC分类号： H03F3/45
CPC分类号： H03F3/211 , H03F3/45475 , H03F3/45659 , H03F2203/45136 , H03F2203/45138 , H03F2203/45166 , H03F2203/45168 , H03F2203/45434 , H03F2203/45522 , H03F2203/45591
摘要： A variable-gain amplifier circuit uses a pair of single-ended operational amplifiers to amplify complementary portions of a differential input signal. By using two single-ended amplifiers instead of a single differential amplifier, linearity is significantly improved. In addition, common mode feedback circuitry is eliminated along with harmonic distortion and other forms of noise which tend to negative affect the quality of the signal output from the circuit.
摘要翻译：可变增益放大器电路使用一对单端运算放大器来放大差分输入信号的互补部分。通过使用两个单端放大器而不是单个差分放大器，线性度显着提高。此外，消除共模反馈电路以及谐波失真和其他形式的噪声，这些噪声倾向于负面影响从电路输出的信号的质量。

10. 发明授权

US07035351B1 Automatic gain control loop apparatus 有权
标题翻译：自动增益控制回路装置
公开(公告)号：US07035351B1
公开(公告)日：2006-04-25
申请号：US09705696
申请日：2000-11-06
申请人： Joonbae Park , Wonchan Kim , Kyeongho Lee , Deog-Kyoon Jeong
发明人： Joonbae Park , Wonchan Kim , Kyeongho Lee , Deog-Kyoon Jeong
IPC分类号： H03D3/18
CPC分类号： H04B1/30 , H03F3/211 , H03F2200/294 , H03F2200/372
摘要： A DC offset cancelling circuit with multiple feedback loops suppresses DC offset voltages within an automatic gain control loop apparatus. The apparatus includes a plurality of gain stages connected in series that receive and amplify an input RF signal. Each gain stage includes a corresponding feedback loop to filter the DC offset voltage accumulated in the respective gain stage.
摘要翻译：具有多个反馈环路的DC偏移消除电路抑制自动增益控制环路装置内的DC偏移电压。该装置包括串联连接的多个增益级，其接收和放大输入RF信号。每个增益级包括相应的反馈回路以对累积在相应增益级中的DC偏移电压进行滤波。

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