公开(公告)号：US20070149143A1

公开(公告)日：2007-06-28

申请号：US11583911

申请日：2006-10-20

申请人： Dae-yeon Kim ,  Hyun-koo Kang ,  Hee-seung Kim

发明人： Dae-yeon Kim ,  Hyun-koo Kang ,  Hee-seung Kim

IPC分类号： H04B1/40 ,  H04B1/06

CPC分类号： H04B1/0071 ,  H04B1/0078

摘要： A multiple local oscillation frequency generation apparatus which can generate local oscillation frequencies in at least two frequency bands and a wireless transceiver having the multiple local oscillation frequency generation apparatus are provided. The local oscillation frequency generation apparatus includes: an oscillation unit which comprises a plurality of VCOs that provide at least two local oscillation signals having different frequencies for modulating/demodulating RF signals in at least two frequency bands; a PLL which locks the frequencies of the local oscillation signals provided by the VCOs; a first switch which selects one of the local oscillation signal provided the VCOs according to a frequency band of a RF signal; a frequency conversion unit which converts the frequency of the selected local oscillation signal; and a phase shift unit which generates I-phase and Q-phase local oscillation signals by shifting the phase of a signal output by the frequency conversion unit.

摘要翻译： 提供了可以在至少两个频带中产生本地振荡频率的多本地振荡频率产生装置和具有多个本地振荡频率产生装置的无线收发器。 本地振荡频率发生装置包括：振荡单元，其包括多个VCO，其提供具有不同频率的至少两个本地振荡信号，用于在至少两个频带中调制/解调RF信号; PLL，其锁定由VCO提供的本地振荡信号的频率; 第一开关，其根据RF信号的频带选择提供VCO的本地振荡信号之一; 频率转换单元，其转换所选择的本地振荡信号的频率; 以及相移单元，通过移位由变频单元输出的信号的相位来产生I相和Q相本地振荡信号。

公开(公告)号：US07345715B2

公开(公告)日：2008-03-18

申请号：US10968362

申请日：2004-10-20

申请人： Hee-seung Kim ,  Hyun-koo Kang

发明人： Hee-seung Kim ,  Hyun-koo Kang

IPC分类号： H04N5/40 ,  H04N5/455

CPC分类号： H04N5/38 ,  H04H20/30 ,  H04L5/06 ,  H04L27/02 ,  H04N21/4344 ,  H04N21/4347 ,  H04N21/43615 ,  H04N21/43637

摘要： An apparatus and method for transmitting and receiving multiple signals inclusively in one channel are provided. The apparatus for transmitting multiple signals inclusively includes a single-sideband signal synthesis unit which synthesizes single-sideband signals having predetermined bands to generate an inclusive single-sideband signal which includes the bands of the single-sideband signals; a main modulation unit which modulates an inclusive single-sideband signal with a primary carrier frequency to generate an inclusive double-sideband signal where the primary carrier frequency is the center frequency; a main band pass filter which allows only any one single-sideband signal of an inclusive double-sideband signal to generate an inclusive single-sideband signal where a primary carrier frequency is an edge frequency of the inclusive band; and an inclusive single-sideband signal transmission unit which transmits an inclusive single-sideband signal. By transmitting and receiving multiple signals inclusively in one channel, the apparatus can efficiently process transmission and reception of multiple signals.

摘要翻译： 提供一种用于在一个通道中包含多个信号的发送和接收的装置和方法。 用于发送多个信号的装置包括单边带信号合成单元，其合成具有预定频带的单边带信号以产生包括单边带信号的频带的包含单边带信号; 主调制单元，其以主载波频率调制包含单边带信号，以产生主载波频率为中心频率的包含双边带信号; 主带通滤波器，其仅允许包含双边带信号的任何一个单边带信号产生包含单边带信号，其中主载波频率是包含带的边缘频率; 以及发送包含单边带信号的包容性单边带信号发送单元。 通过在一个信道中发送和接收多个信号，该装置可以有效地处理多个信号的发送和接收。

公开(公告)号：US20050195328A1

公开(公告)日：2005-09-08

申请号：US10968362

申请日：2004-10-20

申请人： Hee-seung Kim ,  Hyun-koo Kang

发明人： Hee-seung Kim ,  Hyun-koo Kang

IPC分类号： H04L27/04 ,  H04N7/12

CPC分类号： H04N5/38 ,  H04H20/30 ,  H04L5/06 ,  H04L27/02 ,  H04N21/4344 ,  H04N21/4347 ,  H04N21/43615 ,  H04N21/43637

摘要： An apparatus and method for transmitting and receiving multiple signals inclusively in one channel are provided. The apparatus for transmitting multiple signals inclusively includes a single-sideband signal synthesis unit which synthesizes single-sideband signals having predetermined bands to generate an inclusive single-sideband signal which includes the bands of the single-sideband signals; a main modulation unit which modulates an inclusive single-sideband signal with a primary carrier frequency to generate an inclusive double-sideband signal where the primary carrier frequency is the center frequency; a main band pass filter which allows only any one single-sideband signal of an inclusive double-sideband signal to generate an inclusive single-sideband signal where a primary carrier frequency is an edge frequency of the inclusive band; and an inclusive single-sideband signal transmission unit which transmits an inclusive single-sideband signal. By transmitting and receiving multiple signals inclusively in one channel, the apparatus can efficiently process transmission and reception of multiple signals.

摘要翻译： 提供一种用于在一个通道中包含多个信号的发送和接收的装置和方法。 用于发送多个信号的装置包括单边带信号合成单元，其合成具有预定频带的单边带信号以产生包括单边带信号的频带的包含单边带信号; 主调制单元，其以主载波频率调制包含单边带信号，以产生主载波频率为中心频率的包含双边带信号; 主带通滤波器，其仅允许包含双边带信号的任何一个单边带信号产生包含单边带信号，其中主载波频率是包含带的边缘频率; 以及发送包含单边带信号的包容性单边带信号发送单元。 通过在一个信道中发送和接收多个信号，该装置可以有效地处理多个信号的发送和接收。

公开(公告)号：US20070042734A1

公开(公告)日：2007-02-22

申请号：US11432344

申请日：2006-05-12

申请人： Jae-young Ryu ,  Hyun-koo Kang

发明人： Jae-young Ryu ,  Hyun-koo Kang

IPC分类号： H04B1/18

CPC分类号： H04B1/005 ,  H03G3/3068 ,  H03J1/0008 ,  H03J3/08

摘要： A tuner and a broadcasting signal receiver including the tuner. The tuner includes a band selection module that selects an RF broadcasting signal within the frequency band corresponding to a selected channel, and a low noise amplifier module that amplifies the signal with a specific received signal strength indicator (RSSI) to produce an RF broadcasting signal with a specific gain.

摘要翻译： 调谐器和包括调谐器的广播信号接收机。 该调谐器包括：频带选择模块，其选择与所选择的频道对应的频带内的RF广播信号;以及低噪声放大器模块，其利用特定的接收信号强度指示符（RSSI）对信号进行放大，以产生具有 一个具体的收益。

公开(公告)号：US20070042732A1

公开(公告)日：2007-02-22

申请号：US11447041

申请日：2006-06-06

申请人： Hyun-koo Kang ,  Jae-young Ryu

发明人： Hyun-koo Kang ,  Jae-young Ryu

IPC分类号： H04B1/18

CPC分类号： H03J1/0008 ,  H03J3/08

摘要： A device, system, and method for improving the performance of a tuner for a selected channel by providing a band selection filter controlled by a digital voltage, instead of a notch filter for controlling FM radio signals. The tuner includes a band-selection filter module for selecting a radio frequency RF signal having a frequency within a frequency band of the selected channel using a voltage determined based on digital information; an amplifier module for amplifying the selected RF signal; a mixer module for down-converting the amplified RF signal into a signal having a frequency within an intermediate frequency (IF) band, in which the digital information corresponds to the frequency band of the selected channel.

摘要翻译： 一种用于通过提供由数字电压控制的频带选择滤波器而不是用于控制FM无线电信号的陷波滤波器来提高所选频道的调谐器的性能的装置，系统和方法。 调谐器包括：频带选择滤波器模块，用于使用基于数字信息确定的电压来选择具有所选频道的频带内的频率的射频RF信号; 用于放大所选择的RF信号的放大器模块; 混频器模块，用于将放大的RF信号下变频成具有在中频（IF）频带内的频率的信号，其中数字信息对应于所选频道的频带。

公开(公告)号：US20050184909A1

公开(公告)日：2005-08-25

申请号：US11060532

申请日：2005-02-18

申请人： Nikolai Tchistiakov ,  Seong-sin Joo ,  Dae-yeon Kim ,  Weon-kyo Jung ,  Hyun-koo Kang

发明人： Nikolai Tchistiakov ,  Seong-sin Joo ,  Dae-yeon Kim ,  Weon-kyo Jung ,  Hyun-koo Kang

IPC分类号： H01Q1/38 ,  H01Q5/00 ,  H01Q5/50 ,  H01Q9/28

CPC分类号： H01Q9/285 ,  H01Q1/38 ,  H01Q5/50

摘要： A wide band antenna, which has a wide frequency band so that it can be used in a wireless local area network (WLAN) and can be manufactured in a small size at a low cost, is provided. The wide band antenna includes a first antenna unit, a supply cable, a first connector coupler, a second antenna unit, a balun, a stub, and a second connector coupler. A frequency band increases when coupling occurs between the stub and the first antenna unit or the second antenna unit.

摘要翻译： 提供了宽频带天线，其具有宽频带，使得其可以在无线局域网（WLAN）中使用，并且可以以低成本制造成小尺寸。 宽带天线包括第一天线单元，供电电缆，第一连接器耦合器，第二天线单元，平衡 - 不平衡变换器，短线和第二连接器耦合器。 当短截线与第一天线单元或第二天线单元之间发生耦合时，频带增加。

公开(公告)号：US07439811B2

公开(公告)日：2008-10-21

申请号：US11431555

申请日：2006-05-11

申请人： Dae-yeon Kim ,  Hyun-koo Kang ,  Jae-young Ryu ,  Ju-ho Son ,  Jeong-ho Lee

发明人： Dae-yeon Kim ,  Hyun-koo Kang ,  Jae-young Ryu ,  Ju-ho Son ,  Jeong-ho Lee

IPC分类号： H03F1/44

CPC分类号： H03F3/45188 ,  H03F3/193 ,  H03F2200/294 ,  H03F2203/45386 ,  H03F2203/45481

摘要： A broadband low noise amplifier and amplification method is provided. The broadband low noise amplifier includes an input terminal into which a radio frequency (RF) signal received by an antenna is input, an output terminal from which an amplified RF signal is output, at least one gain control part connected in parallel with loads of the output terminal to adjust the gain of the amplified RF signal, and at least one load tuning part that resonates with loads of the output terminal to adjust the resonance frequency of the load impedance. The method includes amplifying the input RF signal and outputting the amplified RF signal to an output terminal, where a gain of the amplified RF signal is adjusted by switching operations of at least one switching device connected in parallel with a load of the output terminal.

摘要翻译： 提供宽带低噪声放大器和放大方法。 宽带低噪声放大器包括输入端子，由天线接收的射频（RF）信号被输入到其中，输出放大的RF信号的输出端子，至少一个增益控制部分与 输出端子来调节放大的RF信号的增益，以及至少一个负载调谐部分，其与输出端子的负载共振以调节负载阻抗的谐振频率。 该方法包括放大输入RF信号并将放大的RF信号输出到输出端，其中放大的RF信号的增益通过与输出端的负载并联连接的至少一个开关器件的开关操作来调节。

公开(公告)号：US07358816B2

公开(公告)日：2008-04-15

申请号：US11172883

申请日：2005-07-05

申请人： Jae-young Ryu ,  Hyun-koo Kang ,  Dae-yeon Kim ,  Jeong-ho Lee

发明人： Jae-young Ryu ,  Hyun-koo Kang ,  Dae-yeon Kim ,  Jeong-ho Lee

IPC分类号： H03G3/10

CPC分类号： H03G1/0088 ,  H03F3/45188 ,  H03G1/0029 ,  H03G3/001

摘要： A variable gain amplifier (VGA) having stable input impedance matching and a stable noise figure in spite of a variation of an amplification gain is provided. In an embodiment of the VGA, a first stage of a cascode amplification unit has a fixed impedance regardless of a change of an amplification gain, and a variable gain determination unit comprised of a plurality of transistors is formed at an upper stage in the cascode amplification unit. Accordingly, a change of an input impedance of the cascode amplification unit due to the change of the amplification gain is minimized. In another embodiment of the VGA, an amplification gain of an amplification unit is controlled by adjusting a voltage applied to the amplification unit by controlling a current to be output by a current supply source, and stable input impedance matching and a stable noise figure are obtained.

摘要翻译： 提供了具有稳定的输入阻抗匹配的可变增益放大器（VGA）和尽管放大增益的变化的稳定的噪声系数。 在VGA的一个实施例中，级联放大单元的第一级具有固定的阻抗，而与放大增益的变化无关，并且在共源共栅放大中的上级形成由多个晶体管组成的可变增益确定单元 单元。 因此，由于放大增益的变化引起的共源共栅放大单元的输入阻抗的变化被最小化。 在VGA的另一实施例中，通过控制由电流源输出的电流来调节施加到放大单元的电压来控制放大单元的放大增益，并获得稳定的输入阻抗匹配和稳定的噪声系数 。

公开(公告)号：US20070096821A1

公开(公告)日：2007-05-03

申请号：US11580898

申请日：2006-10-16

申请人： Jae-young Ryu ,  Hyun-koo Kang ,  Dae-yeon Kim

发明人： Jae-young Ryu ,  Hyun-koo Kang ,  Dae-yeon Kim

IPC分类号： H03F3/16

CPC分类号： H03F3/193 ,  H03F1/223

摘要： An amplifier that achieves impedance matching in a wide frequency band is provided. The wide-band amplifier includes a first n-type metal oxide semiconductor (NMOS) transistor which receives an input signal; a second NMOS transistor which buffers a signal amplified by the first NMOS transistor; a third NMOS transistor which amplifies a signal supplied from a source of the first NMOS transistor; and an output terminal which outputs a signal obtained by combining the signal buffered by the second NMOS transistor with the signal amplified by the third NMOS transistor.

摘要翻译： 提供了在宽频带中实现阻抗匹配的放大器。 宽带放大器包括接收输入信号的第一n型金属氧化物半导体（NMOS）晶体管; 第二NMOS晶体管，缓冲由第一NMOS晶体管放大的信号; 第三NMOS晶体管，放大从第一NMOS晶体管的源极提供的信号; 以及输出端子，其输出通过将由第二NMOS晶体管缓冲的信号组合到由第三NMOS晶体管放大的信号而获得的信号。

公开(公告)号：US20070001768A1

公开(公告)日：2007-01-04

申请号：US11431555

申请日：2006-05-11

申请人： Dae-yeon Kim ,  Hyun-koo Kang ,  Jae-young Ryu ,  Ju-ho Son ,  Jeong-ho Lee

发明人： Dae-yeon Kim ,  Hyun-koo Kang ,  Jae-young Ryu ,  Ju-ho Son ,  Jeong-ho Lee

IPC分类号： H03F3/191

CPC分类号： H03F3/45188 ,  H03F3/193 ,  H03F2200/294 ,  H03F2203/45386 ,  H03F2203/45481

摘要： A broadband low noise amplifier and amplification method is provided. The broadband low noise amplifier includes an input terminal into which a radio frequency (RF) signal received by an antenna is input, an output terminal from which an amplified RF signal is output, at least one gain control part connected in parallel with loads of the output terminal to adjust the gain of the amplified RF signal, and at least one load tuning part that resonates with loads of the output terminal to adjust the resonance frequency of the load impedance. The method includes amplifying the input RF signal and outputting the amplified RF signal to an output terminal, where a gain of the amplified RF signal is adjusted by switching operations of at least one switching device connected in parallel with a load of the output terminal.

摘要翻译： 提供宽带低噪声放大器和放大方法。 宽带低噪声放大器包括输入端子，由天线接收的射频（RF）信号被输入到其中，输出放大的RF信号的输出端子，至少一个增益控制部分与 输出端子来调节放大的RF信号的增益，以及至少一个负载调谐部分，其与输出端子的负载共振以调节负载阻抗的谐振频率。 该方法包括放大输入RF信号并将放大的RF信号输出到输出端，其中放大的RF信号的增益通过与输出端的负载并联连接的至少一个开关器件的开关操作来调节。