专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20090140813A1 RECEIVED SIGNAL GAIN CONTROL METHOD AND RADIO FREQUENCY SIGNAL RECEIVING APPARATUS 审中-公开
标题翻译：接收信号增益控制方法和无线电频率接收装置
公开(公告)号：US20090140813A1
公开(公告)日：2009-06-04
申请号：US12234115
申请日：2008-09-19
申请人： Byung Su KANG , Heon Kook KWON , Kwang Chun LEE
发明人： Byung Su KANG , Heon Kook KWON , Kwang Chun LEE
IPC分类号： H03G3/20
CPC分类号： H03G3/3068
摘要： A radio signal receiving apparatus receiving a radio signal over a radio channel generates a first amplified signal by amplifying the radio signal with a first gain, and determines the first gain by measuring the strength of the first amplified signal. In addition, the radio signal receiving apparatus generates a down-converted signal by frequency down-converting the first amplified signal, and generates a second amplified signal by amplifying the down-converted signal with a second gain. In addition, the radio signal receiving apparatus determines the second gain by measuring the strength of the second amplified signal.
摘要翻译：通过无线电信道接收无线电信号的无线电信号接收装置通过以第一增益放大无线电信号来产生第一放大信号，并且通过测量第一放大信号的强度来确定第一增益。此外，无线电信号接收装置通过对第一放大信号进行降频转换而产生下变频信号，并通过用第二增益放大下变频信号来产生第二放大信号。此外，无线电信号接收装置通过测量第二放大信号的强度来确定第二增益。

2. 发明申请

US20130163690A1 METHOD FOR TRANSMITTING SIGNAL OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING TYPE, AND APPARATUS APPLIED TO THE SAME 失效
标题翻译：正交频分复用类型信号的发送方法及其应用
公开(公告)号：US20130163690A1
公开(公告)日：2013-06-27
申请号：US13545691
申请日：2012-07-10
申请人： Gweon Do JO , Chang Wahn YU , Heon Kook KWON , Byung Su KANG , Kwang Chun LEE
发明人： Gweon Do JO , Chang Wahn YU , Heon Kook KWON , Byung Su KANG , Kwang Chun LEE
IPC分类号： H04L27/12 , H04B1/66
CPC分类号： H03M7/6023 , H04L27/26
摘要： The method for transmitting a signal of an orthogonal frequency division multiplexing type according to an exemplary embodiment of the present invention has a configuration allowing a radio unit (RU) to perform a component adding a compression component and a decompression component before/after a serial interface interlocking between a digital unit (DU) and the radio unit (RU) and a component inserting a cyclic prefix (CP) into a signal so as to secure orthogonality of an orthogonal frequency division multiplexing (OFDM) signal, in a structure in which a base station is physically divided into the DU and the RU.
摘要翻译：根据本发明的示例性实施例的用于发送正交频分复用类型的信号的方法具有允许无线电单元（RU）在串行接口之前/之后执行添加压缩分量和解压缩分量的分量的配置在数字单元（DU）和无线电单元（RU）之间互锁，以及将一个循环前缀（CP）插入到信号中以便确保正交频分复用（OFDM）信号的正交性的组件，其中基站在物理上分为DU和RU。

3. 发明申请

US20090140821A1 APPARATUS AND METHOD FOR COMPENSATING CARRIER FEEDTHROUGH IN QUADRATURE MODULATION SYSTEM 有权
标题翻译：用于补偿惯性调制系统中的载波的装置和方法
公开(公告)号：US20090140821A1
公开(公告)日：2009-06-04
申请号：US12170715
申请日：2008-07-10
申请人： Heon Kook KWON , Joon Hyung KIM , Byung Su KANG , Kwang Chun LEE
发明人： Heon Kook KWON , Joon Hyung KIM , Byung Su KANG , Kwang Chun LEE
IPC分类号： H03C1/52 , H03C1/00 , H04L27/36
CPC分类号： H04L27/364 , H03C3/406
摘要： The present invention relates to an apparatus and a method for compensating carrier feedthrough in a quadrature modulation system. In order to suppress the carrier feedthrough, and minimize and compensate the carrier feedthrough, differences of baseband differential input DC voltages in an in-phase as well as a quadrature-phase are simultaneously adjusted to 0 or a certain slight voltage difference by a simple analog circuit. Therefore, it is possible to suppress carrier feedthrough using a simple analog type apparatus for compensating carrier feedthrough, and simply achieve an apparatus for carrier feedthrough using a variety of quadrature modulators.
摘要翻译：本发明涉及在正交调制系统中补偿载波馈通的装置和方法。为了抑制载波馈通，并且使载波馈通最小化和补偿，同相和正交相中的基带差分输入直流电压的差异通过简单的模拟同时被调整到0或一定的微小电压差电路。因此，可以使用用于补偿载波馈通的简单模拟型装置来抑制载波馈通，并且简单地实现使用各种正交调制器的载波馈通装置。

4. 发明申请

US20130162495A1 FRONT-END APPARATUS OF WIRELESS TRANSCEIVER USING RF PASSIVE ELEMENTS 有权
标题翻译：使用射频被动元件的无线收发器的前端设备
公开(公告)号：US20130162495A1
公开(公告)日：2013-06-27
申请号：US13619960
申请日：2012-09-14
申请人： Heon Kook KWON , Byung Su KANG , Jae Ho JUNG
发明人： Heon Kook KWON , Byung Su KANG , Jae Ho JUNG
IPC分类号： H01Q1/50
CPC分类号： H01Q21/28
摘要： Disclosed is a front-end apparatus of an RF transceiver connected with an antenna in a wireless communication system. The front-end apparatus of an RF transceiver using radio-frequency passive elements includes: a plurality of band pass filters configured a transmission signal and a reception signal; a first circulator configured to output a first transmission signal to a second terminal and output a second reception signal input; a second circulator configured to output a second transmission signal input into the first terminal to the second terminal and output a first reception signal input into the second terminal to the third terminal; a passive directional double pole and double throw switch configured to process a route to be changed depending on directions of an input and an output; a first antenna configured to transmit the first transmission signal; and a second antenna configured to transmit the second transmission.
摘要翻译：公开了一种在无线通信系统中与天线连接的RF收发器的前端装置。使用射频无源元件的RF收发器的前端装置包括：配置有发送信号和接收信号的多个带通滤波器; 第一循环器，被配置为将第一发送信号输出到第二终端，并输出第二接收信号输入; 第二循环器，被配置为将输入到所述第一端子的第二传输信号输出到所述第二端子，并将输入到所述第二端子的第一接收信号输出到所述第三端子; 被动方向双极双掷开关，被配置为根据输入和输出的方向处理要改变的路线; 第一天线，被配置为发送所述第一发送信号; 以及被配置为发送所述第二传输的第二天线。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式