公开(公告)号：US20070057740A1

公开(公告)日：2007-03-15

申请号：US11518926

申请日：2006-09-12

申请人： Jae-young Ryu ,  Ju-ho Son ,  Dae-ki Kim

发明人： Jae-young Ryu ,  Ju-ho Son ,  Dae-ki Kim

IPC分类号： H03B27/00

CPC分类号： H03B27/00 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2200/0078

摘要： A quadrature voltage-controlled oscillator includes an oscillation module that provides a first signal and a second signal having predetermined frequencies, and a coupling module that couples the first signal and the second signal in a manner such that the second signal has a quadrature phase difference with respect to the first signal.

摘要翻译： 正交压控振荡器包括提供第一信号和具有预定频率的第二信号的振荡模块，以及耦合模块，其以第二信号与第二信号具有正交相位差的方式耦合第一信号和第二信号， 尊重第一个信号。

公开(公告)号：US20090061805A1

公开(公告)日：2009-03-05

申请号：US12018572

申请日：2008-01-23

申请人： Jong-jin Kim ,  Dae-ki Kim ,  Seung-ho Jang

发明人： Jong-jin Kim ,  Dae-ki Kim ,  Seung-ho Jang

IPC分类号： H04B1/10

CPC分类号： H04B1/123

摘要： An RF receiver and a method by which the RF receiver removes interference signals are provided. The RF receiver includes a first signal processor which detects an undesired signal from RF signals received through a channel, to convert the phase of the detected signal; and a second signal processor which combines the signal output from the first signal processor with the received RF signals, to detect a desired signal. Therefore, it is possible to remove undesired signals existing on channels in which there is no overlap in frequency between desired signals and undesired signals, and accordingly an RF receiver having enhanced performance and a method by which the RF receiver removes interference signals may be provided.

摘要翻译： 提供RF接收机和RF接收机去除干扰信号的方法。 RF接收机包括第一信号处理器，其通过信道接收的RF信号检测不期望的信号，以转换检测信号的相位; 以及第二信号处理器，其将从第一信号处理器输出的信号与接收的RF信号组合，以检测期望的信号。 因此，有可能去除存在于期望信号和非期望信号之间频率没有重叠的信道上存在的不需要的信号，因此可以提供具有增强性能的RF接收机和RF接收机去除干扰信号的方法。

公开(公告)号：US20060208808A1

公开(公告)日：2006-09-21

申请号：US11368627

申请日：2006-03-07

申请人： Hee-mun Bang ,  Dae-ki Kim ,  Chong-ouk Kim ,  Heung-bae Lee ,  Sung-jae Jung ,  Sang-yoon Jeon

发明人： Hee-mun Bang ,  Dae-ki Kim ,  Chong-ouk Kim ,  Heung-bae Lee ,  Sung-jae Jung ,  Sang-yoon Jeon

IPC分类号： H03L7/00

CPC分类号： H03L7/10 ,  Y10S331/02

摘要： A method and a system for calibrating an input voltage of a voltage controlled oscillator and a digital interface used for calibrating the input voltage. The method includes: setting a lock detection time for tuning a signal phase; setting a lock detection voltage section; setting output frequency values at predetermine spacings; checking connection states of capacitors of the capacitor bank necessary for a lock of the output frequency values; storing information regarding the connection states of the capacitors in the output frequency values; and if one of the output frequency values is determined depending on a change of a channel, setting connection states of the capacitors according to the information regarding the connection state corresponding to the one frequency value. The capacitor bank includes: a predetermined number of capacitors having different capacitances and connected to one another in parallel; and switches connected to the capacitors in series.

摘要翻译： 用于校准压控振荡器的输入电压的方法和系统以及用于校准输入电压的数字接口。 该方法包括：设置用于调谐信号相位的锁定检测时间; 设置锁定检测电压部分; 以预定的间距设定输出频率值; 检查用于锁定输出频率值所需的电容器组的电容器的连接状态; 将关于电容器的连接状态的信息存储在输出频率值中; 并且如果根据信道的变化确定输出频率值中的一个，则根据与一个频率值相对应的关于连接状态的信息来设置电容器的连接状态。 电容器组包括：具有不同电容并且彼此并联连接的预定数量的电容器; 并且串联连接到电容器的开关。

公开(公告)号：US20090172208A1

公开(公告)日：2009-07-02

申请号：US12077548

申请日：2008-03-20

申请人： Ho-Joon Lee ,  Jung-Man Moon ,  Dae-Ki Kim

发明人： Ho-Joon Lee ,  Jung-Man Moon ,  Dae-Ki Kim

IPC分类号： G06F12/02

CPC分类号： G06F1/1632 ,  G06F1/266 ,  G06F13/00

摘要： Disclosed herein is a Wireless Broadband (WiBro) Universal Serial Bus (USB) modem device having a storage device and a WiBro communication device. A USB hub is connected to the USB interface of the WiBro communication device and the USB interface of the storage device, and configured to relay data to a user terminal through a USB connector. A switching mode power supply unit is configured to have a DC-DC switching mode, receive power from the user terminal, and apply the power by performing high-speed switching so that the WiBro communication device and the storage device are simultaneously driven. The switching mode power supply unit includes a dual output switching mode power supply unit and a single output switching mode power supply unit.

摘要翻译： 本文公开了具有存储设备和WiBro通信设备的无线宽带（WiBro）通用串行总线（USB）调制解调器设备。 USB集线器连接到WiBro通信设备的USB接口和存储设备的USB接口，并配置为通过USB连接器将数据中继到用户终端。 开关模式电源单元被配置为具有DC-DC切换模式，从用户终端接收电力，并且通过执行高速切换来施加电力，使得WiBro通信设备和存储设备同时被驱动。 开关模式电源单元包括双输出开关模式电源单元和单输出开关模式电源单元。

公开(公告)号：US07301406B2

公开(公告)日：2007-11-27

申请号：US11368627

申请日：2006-03-07

申请人： Hee-mun Bang ,  Dae-ki Kim ,  Chong-ouk Kim ,  Heung-bae Lee ,  Sung-jae Jung ,  Sang-yoon Jeon

发明人： Hee-mun Bang ,  Dae-ki Kim ,  Chong-ouk Kim ,  Heung-bae Lee ,  Sung-jae Jung ,  Sang-yoon Jeon

IPC分类号： H03L7/095 ,  H03L7/10 ,  H03L7/18 ,  G01R23/00

CPC分类号： H03L7/10 ,  Y10S331/02

摘要： A method and a system for calibrating an input voltage of a voltage controlled oscillator and a digital interface used for calibrating the input voltage. The method includes: setting a lock detection time for tuning a signal phase; setting a lock detection voltage section; setting output frequency values at predetermine spacings; checking connection states of capacitors of the capacitor bank necessary for a lock of the output frequency values; storing information regarding the connection states of the capacitors in the output frequency values; and if one of the output frequency values is determined depending on a change of a channel, setting connection states of the capacitors according to the information regarding the connection state corresponding to the one frequency value. The capacitor bank includes: a predetermined number of capacitors having different capacitances and connected to one another in parallel; and switches connected to the capacitors in series.

摘要翻译： 用于校准压控振荡器的输入电压的方法和系统以及用于校准输入电压的数字接口。 该方法包括：设置用于调谐信号相位的锁定检测时间; 设置锁定检测电压部分; 以预定的间距设定输出频率值; 检查用于锁定输出频率值所需的电容器组的电容器的连接状态; 将关于电容器的连接状态的信息存储在输出频率值中; 并且如果根据信道的变化确定输出频率值中的一个，则根据与一个频率值相对应的关于连接状态的信息来设置电容器的连接状态。 电容器组包括：具有不同电容并且彼此并联连接的预定数量的电容器; 并且串联连接到电容器的开关。