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1. 发明申请

US20080280584A1 MIXER USED FOR DIRECT CONVERSION RECEIVER 有权
标题翻译：混合器用于直接转换接收器
公开(公告)号：US20080280584A1
公开(公告)日：2008-11-13
申请号：US12106475
申请日：2008-04-21
申请人： Won Ko , Sung-gi Yang
发明人： Won Ko , Sung-gi Yang
IPC分类号： H04B1/06
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0033 , H03D2200/0047
摘要： Provided is a mixer including a mixing unit configured to mix high frequency data signals and local oscillation (LO) signals, generate first and second low frequency data signals, and output the first and second low frequency data signals to first and second output terminals, respectively; a common mode amplification unit coupled to the mixing unit, the common mode amplification unit configured to compare a common mode voltage of the first and second low frequency data signals and a predetermined reference voltage, the common mode amplification unit further configured to output a feedback signal at a control node based on the comparison; a first load transistor coupled to the first output terminal and the control node, the first load transistor configured to provide the first output terminal with a first load current corresponding to the feedback signal; a first calibration transistor unit connected in parallel to the first load transistor in order to calibrate an input impedance of the first output terminal; and a first current mirror unit coupled to the first calibration transistor unit, the first current mirror unit configured to discharge a first calibration current that is output from the first calibration transistor unit to prevent the first calibration current from entering the first output terminal.
摘要翻译：提供一种混频器，包括：混合单元，被配置为混合高频数据信号和本地振荡（LO）信号，产生第一和第二低频数据信号，并将第一和第二低频数据信号分别输出到第一和第二输出端 ; 耦合到所述混合单元的共模放大单元，所述共模放大单元被配置为比较所述第一和第二低频数据信号的共模电压和预定参考电压，所述共模放大单元还被配置为输出反馈信号在控制节点的基础上进行比较; 耦合到所述第一输出端子和所述控制节点的第一负载晶体管，所述第一负载晶体管被配置为向所述第一输出端子提供与所述反馈信号相对应的第一负载电流; 第一校准晶体管单元，与第一负载晶体管并联连接，以校准第一输出端的输入阻抗; 以及耦合到所述第一校准晶体管单元的第一电流镜单元，所述第一电流镜单元被配置为对从所述第一校准晶体管单元输出的第一校准电流进行放电，以防止所述第一校准电流进入所述第一输出端。

2. 发明申请

US20060097788A1 Transconductance amplifier having common mode feedback circuit and method of operating the transconductance amplifier 失效
标题翻译：具有共模反馈电路的跨导放大器和跨导放大器的操作方法
公开(公告)号：US20060097788A1
公开(公告)日：2006-05-11
申请号：US11271455
申请日：2005-11-10
申请人： Sung-gi Yang , Yeon-kug Moon
发明人： Sung-gi Yang , Yeon-kug Moon
IPC分类号： H03F3/45
CPC分类号： H03F3/45807 , H03F3/45251 , H03F3/45286 , H03F2203/45424
摘要： A complementary transconductance amplifier having a common mode feedback circuit includes a first-type transconductor, a second-type transconductor and a common mode feedback circuit. The first-type transconductor generates a first differential output signal pair in response to a differential input signal pair under the control of a first control signal. The second-type transconductor generates a second differential output signal pair in response to the differential input signal pair under the control of a second control signal. The common mode feedback circuit generates the second control signal in response to the first and second differential output signal pairs under the control of a common mode control signal.
摘要翻译：具有共模反馈电路的互补跨导放大器包括第一类型跨导体，第二类型跨导体和共模反馈电路。第一类型跨导器在第一控制信号的控制下响应于差分输入信号对产生第一差分输出信号对。第二类型的跨导体在第二控制信号的控制下响应差分输入信号对产生第二差分输出信号对。共模反馈电路在共模控制信号的控制下响应于第一和第二差分输出信号对产生第二控制信号。

3. 发明授权

US06586976B2 Charge pump circuit for improving switching characteristics and reducing leakage current and phase locked loop having the same 失效
公开(公告)号：US06586976B2
公开(公告)日：2003-07-01
申请号：US09946701
申请日：2001-09-05
申请人： Sung-gi Yang
发明人： Sung-gi Yang
IPC分类号： H03L706
CPC分类号： H03L7/0895
摘要： A charge pump circuit capable of improving the matching and switching characteristics, charge current, and discharge current and reducing leakage current and a phase locked loop including the charge pump circuit. In one aspect, the charge pump circuit comprise a first current source for sourcing current to an output terminal of the charge pump circuit in response to first bias voltage, a first switching device which is switched in response to a first control signal and a pull-down device for pulling down the voltage of a connection node of the first switching device between the first current source in response to the first control signal. In another aspect, the charge pump circuit comprises a second current source for sinking current from the output terminal of the charge pump circuit in response to second bias voltage, a second switching device which is switched in response to a second control signal and a pull-up device for pulling up the voltage of a connection node between the second switching device and the second current source in response to the second control signal.

4. 发明授权

US07323935B2 Transconductance amplifier having common mode feedback circuit and method of operating the transconductance amplifier 失效
标题翻译：具有共模反馈电路的跨导放大器和跨导放大器的操作方法
公开(公告)号：US07323935B2
公开(公告)日：2008-01-29
申请号：US11271455
申请日：2005-11-10
申请人： Sung-Gi Yang , Yeon-Kug Moon
发明人： Sung-Gi Yang , Yeon-Kug Moon
IPC分类号： H03F3/45
CPC分类号： H03F3/45807 , H03F3/45251 , H03F3/45286 , H03F2203/45424
摘要： A complementary transconductance amplifier having a common mode feedback circuit includes a first-type transconductor, a second-type transconductor and a common mode feedback circuit. The first-type transconductor generates a first differential output signal pair in response to a differential input signal pair under the control of a first control signal. The second-type transconductor generates a second differential output signal pair in response to the differential input signal pair under the control of a second control signal. The common mode feedback circuit generates the second control signal in response to the first and second differential output signal pairs under the control of a common mode control signal.
摘要翻译：具有共模反馈电路的互补跨导放大器包括第一类型跨导体，第二类型跨导体和共模反馈电路。第一类型跨导器在第一控制信号的控制下响应于差分输入信号对产生第一差分输出信号对。第二类型的跨导体在第二控制信号的控制下响应差分输入信号对产生第二差分输出信号对。共模反馈电路在共模控制信号的控制下响应于第一和第二差分输出信号对产生第二控制信号。

5. 发明授权

US08681840B2 Transceivers having loopback switches and methods of calibrating carrier leakage thereof 有权
标题翻译：具有回送开关的收发器和校准其载波泄漏的方法
公开(公告)号：US08681840B2
公开(公告)日：2014-03-25
申请号：US13439114
申请日：2012-04-04
申请人： Byoung-Joong Kang , Sung-Gi Yang , Joung-Hyun Yim
发明人： Byoung-Joong Kang , Sung-Gi Yang , Joung-Hyun Yim
IPC分类号： H04B1/38
CPC分类号： H04B1/525
摘要： A transceiver includes a transmitter circuit, a receiver circuit, and the loopback switch. The transmitter circuit performs a digital-to-analog conversion (DAC) operation on a calibration code without a transmission digital signal in a calibration mode to generate a calibration signal. The transmitter circuit up-converts the calibration signal and generates a transmission signal. The receiver circuit down-converts the transmission signal in the calibration mode and generates a receiving digital signal. The loopback switch electrically connects an output terminal of the transmitter circuit and an input terminal of the receiver circuit in the calibration mode. Thus, the transceiver may stably reduce a carrier leakage irrespective of processes, voltages, and temperatures.
摘要翻译：收发器包括发射机电路，接收机电路和环回开关。发射机电路在校准模式下对校准代码进行数模转换（DAC）操作，而无需传输数字信号，以产生校准信号。发射机电路对校准信号进行上变频，并产生一个传输信号。接收机电路在校准模式下对发送信号进行下变频，并生成接收数字信号。回路开关在校准模式下，将发送器电路的输出端子和接收器电路的输入端子电连接。因此，无论工艺，电压和温度如何，收发器可以稳定地减小载波泄漏。

6. 发明授权

US07991376B2 Mixer used for direct conversion receiver 有权
标题翻译：搅拌机用于直接转换接收机
公开(公告)号：US07991376B2
公开(公告)日：2011-08-02
申请号：US12106475
申请日：2008-04-21
申请人： Won Ko , Sung-gi Yang
发明人： Won Ko , Sung-gi Yang
IPC分类号： H04B1/26
CPC分类号： H03D7/1441 , H03D7/1458 , H03D7/1491 , H03D2200/0033 , H03D2200/0047
摘要： Provided is a mixer including a mixing unit configured to mix high frequency data signals and local oscillation (LO) signals, generate first and second low frequency data signals, and output the first and second low frequency data signals to first and second output terminals, respectively; a common mode amplification unit coupled to the mixing unit, the common mode amplification unit configured to compare a common mode voltage of the first and second low frequency data signals and a predetermined reference voltage, the common mode amplification unit further configured to output a feedback signal at a control node based on the comparison; a first load transistor coupled to the first output terminal and the control node, the first load transistor configured to provide the first output terminal with a first load current corresponding to the feedback signal; a first calibration transistor unit connected in parallel to the first load transistor in order to calibrate an input impedance of the first output terminal; and a first current mirror unit coupled to the first calibration transistor unit, the first current mirror unit configured to discharge a first calibration current that is output from the first calibration transistor unit to prevent the first calibration current from entering the first output terminal.
摘要翻译：提供一种混频器，包括：混合单元，被配置为混合高频数据信号和本地振荡（LO）信号，产生第一和第二低频数据信号，并将第一和第二低频数据信号分别输出到第一和第二输出端 ; 耦合到所述混合单元的共模放大单元，所述共模放大单元被配置为比较所述第一和第二低频数据信号的共模电压和预定参考电压，所述共模放大单元还被配置为输出反馈信号在控制节点的基础上进行比较; 耦合到所述第一输出端子和所述控制节点的第一负载晶体管，所述第一负载晶体管被配置为向所述第一输出端子提供与所述反馈信号相对应的第一负载电流; 第一校准晶体管单元，与第一负载晶体管并联连接，以校准第一输出端的输入阻抗; 以及耦合到所述第一校准晶体管单元的第一电流镜单元，所述第一电流镜单元被配置为对从所述第一校准晶体管单元输出的第一校准电流进行放电，以防止所述第一校准电流进入所述第一输出端。

7. 发明申请

US20120257656A1 TRANSCEIVERS HAVING LOOPBACK SWITCHES AND METHODS OF CALIBRATING CARRIER LEAKAGE THEREOF 有权
标题翻译：具有回路开关的收发器和校准载波泄漏的方法
公开(公告)号：US20120257656A1
公开(公告)日：2012-10-11
申请号：US13439114
申请日：2012-04-04
申请人： Byoung-Joong Kang , Sung-Gi Yang , Joung-Hyun Yim
发明人： Byoung-Joong Kang , Sung-Gi Yang , Joung-Hyun Yim
IPC分类号： H04B1/38
CPC分类号： H04B1/525
摘要： A transceiver includes a transmitter circuit, a receiver circuit, and the loopback switch. The transmitter circuit performs a digital-to-analog conversion (DAC) operation on a calibration code without a transmission digital signal in a calibration mode to generate a calibration signal. The transmitter circuit up-converts the calibration signal and generates a transmission signal. The receiver circuit down-converts the transmission signal in the calibration mode and generates a receiving digital signal. The loopback switch electrically connects an output terminal of the transmitter circuit and an input terminal of the receiver circuit in the calibration mode. Thus, the transceiver may stably reduce a carrier leakage irrespective of processes, voltages, and temperatures.
摘要翻译：收发器包括发射机电路，接收机电路和环回开关。发射机电路在校准模式下对校准代码进行数模转换（DAC）操作，而无需传输数字信号，以产生校准信号。发射机电路对校准信号进行上变频，并产生一个传输信号。接收机电路在校准模式下对发送信号进行下变频，并生成接收数字信号。回路开关在校准模式下，将发送器电路的输出端子和接收器电路的输入端子电连接。因此，无论工艺，电压和温度如何，收发器可以稳定地减少载波泄漏。

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