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    • 7. 发明授权
    • 포웨이 스위칭 장치
    • 用于切换四种方式的装置
    • KR101079842B1
    • 2011-11-03
    • KR1020100099253
    • 2010-10-12
    • 알에프코어 주식회사
    • 김정근전계익조문규윤승환
    • H03K17/06H03K17/00
    • H03K17/6871H03K17/063
    • PURPOSE: A four-way switching apparatus is provided to use one switching apparatus for a two-port circuit connected through multiple steps, thereby effectively reducing switching loss. CONSTITUTION: An eleventh switching part(1110) comprises a first MOS(Metal Oxide Semiconductor) transistor connected between an eleventh port and a twenty first port in order to transmit an electric signal between the eleventh port and twenty first port. A twelfth switching part(1120) comprises a second MOS transistor connected between the eleventh port and a twenty second port in order to transmit the electric signal between the eleventh port and twenty second port. A twenty first switching part(1210) comprises a third MOS transistor connected between the eleventh port and twenty second port in order to transmit the electric signal between a twelfth port and the twenty first port. A twenty second switching part(1220) comprises a fourth MOS transistor connected between the eleventh port and twenty second port in order to transmit the electric signal between the twelfth port and twenty second port.
    • 目的:提供四路交换装置,用于通过多个步骤连接的双端口电路的一个开关装置,从而有效地减少开关损耗。 构成:第十一开关部分(1110)包括连接在第十一端口和第二十个端口之间的第一MOS(金属氧化物半导体)晶体管,以便在第十一端口和第二十一端口之间传输电信号。 第十二开关部分(1120)包括连接在第十一端口和第二十二端口之间的第二MOS晶体管,以便在第十一端口和第二十二端口之间传输电信号。 第二十一开关部分(1210)包括连接在第十一端口和第二十二端口之间的第三MOS晶体管,以便在第十二端口和第二十个端口之间传输电信号。 第二十二开关部件(1220)包括连接在第十一端口和第二十二端口之间的第四MOS晶体管,以便在第十二端口和第二十二端口之间传输电信号。
    • 8. 发明公开
    • 시분할 듀플렉스 방식의 중계 장치
    • 使用时分双工应用的继电器设备
    • KR1020070102077A
    • 2007-10-18
    • KR1020060033741
    • 2006-04-13
    • 주식회사 케이티알에프코어 주식회사
    • 전계익이성춘이종식류규태
    • H04B7/15H04B7/212
    • H04B7/15535
    • A TDD(Time Division Duplex) type repeater is provided to implement a low cost and a simple structure and reduce a system construction cost upon being applied to a communication service system such as a WLAN(Wireless LAN), WiBro(Wireless Broadband Internet), etc. In case of uplink relay, a switching unit(203) transfers a relay signal received through the first antenna(201) to an LNA(Low Noise Amplifier)(204), and transfers a relay signal amplified by a PA(206) to the second antenna(202). In case of downlink relay, the switching unit(203) transfers a relay signal received through the second antenna(202) to the LNA(204) and transfers a relay signal amplified by the PA(206) to the first antenna(201). The LNA(204) amplifies the relay signal received through the switching unit(203). A gain controller(205) controls the gain of the relay signal amplified by the LNA(204). The PA(206) amplifies the relay signal with the controlled gain into transmission power. A directional coupler(207) splits the relay signal received through the second antenna(202). A detecting unit(208) detects the split relay signal. A controller(209) sets the gain value of the gain controller(205), controls the switching unit(203) to perform the downlink relay when the relay signal is detected by the detecting unit(208), and controls the switching unit(203) to perform the uplink relay when the detecting unit(208) does not detect the relay signal.
    • 提供了TDD(时分双工)型中继器,以实现低成本和简单的结构,并且在应用于诸如WLAN(无线LAN),WiBro(无线宽带因特网))等通信服务系统时降低系统构造成本, 在上行链路中继的情况下,切换单元(203)将通过第一天线(201)接收的中继信号传送到LNA(低噪声放大器)(204),并传送由PA放大的中继信号(206) 到第二天线(202)。 在下行链路中继的情况下,切换单元(203)将通过第二天线(202)接收的中继信号传送到LNA(204),并将由PA(206)放大的中继信号传送到第一天线(201)。 LNA(204)放大通过开关单元(203)接收的继电器信号。 增益控制器(205)控制由LNA(204)放大的继电器信号的增益。 PA(206)将受控增益的继电器信号放大为发射功率。 定向耦合器(207)分割通过第二天线(202)接收的中继信号。 检测单元(208)检测分路继电器信号。 控制器(209)设置增益控制器(205)的增益值,当由检测单元(208)检测到继电器信号时,控制切换单元(203)执行下行链路继电器,并且控制切换单元(203) ),当检测单元(208)未检测到中继信号时执行上行链路中继。