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    • 31. 发明公开
    • 수신감도 향상을 위한 이동통신용 안테나 매칭회로
    • 用于移动通信的天线匹配电路提高接收灵敏度
    • KR1020120007171A
    • 2012-01-20
    • KR1020100067782
    • 2010-07-14
    • 박경진
    • 박경진
    • H04B1/50
    • H04B1/50H04B17/21H04B17/318
    • PURPOSE: An antenna matching circuit for a mobile communication is provided to improve reception sensitivity by connecting the route of a matching circuit according to a reception state. CONSTITUTION: A base station confirms the reception state of a reception terminal. A base-band signal processing processor transmits a control value according to the state of an RSSI(Received Signal Strength Indication) value. A portable terminal senses reception strength. The portable terminal changes the matching circuit of a route according to the reception strength. The antenna characteristic is improved by changing the route of the matching circuit.
    • 目的:提供一种用于移动通信的天线匹配电路,通过根据接收状态连接匹配电路的路由来提高接收灵敏度。 构成:基站确认接收终端的接收状态。 基带信号处理处理器根据RSSI(接收信号强度指示)值的状态发送控制值。 便携式终端意识到接收强度。 便携式终端根据接收强度改变路由的匹配电路。 通过改变匹配电路的路由来改善天线特性。
    • 33. 发明公开
    • 데이터 전송용 무선 모뎀장치
    • 用于数据传输的无线调制解调器
    • KR1020110027872A
    • 2011-03-17
    • KR1020090085652
    • 2009-09-11
    • 주식회사 화성테크
    • 오당섭
    • H04W92/02
    • H04B1/401H04B1/405H04B1/50
    • PURPOSE: A wireless modem device for data transmission is provided to oscillate a stabilized frequency. CONSTITUTION: A TTL(transistor transistor logic) level converting unit converts a RS232 level into a TTL level. A constant-voltage output unit(120) supplies power to a power amp unit(180) and a second amp unit(181). A constant-voltage drop output unit(130) converts a voltage outputted by a constant-voltage output unit into a 3.3 volt. An LED display unit(140) lights a RS LED while receiving and a TX LED while transmitting.
    • 目的:提供用于数据传输的无线调制解调器装置以振荡稳定的频率。 构成:TTL(晶体管晶体管逻辑)电平转换单元将RS232电平转换为TTL电平。 恒压输出单元(120)向功率放大器单元(180)和第二放大器单元(181)供电。 恒压输出单元(130)将由恒压输出单元输出的电压转换为3.3伏。 LED显示单元(140)在接收时点亮RS LED并在发送时点亮TX LED。
    • 34. 发明授权
    • 헬리컬 코일을 이용한 주파수 밴드 조정회로 및 이를 구비한 전자장치
    • 使用螺旋线圈修改频带的电路和具有相同电子设备的电路
    • KR100989831B1
    • 2010-10-29
    • KR1020100003587
    • 2010-01-14
    • (주)파트론
    • 임병준김광화윤성호
    • H04B1/50H01Q11/08
    • H04B1/50H01Q1/242
    • PURPOSE: A frequency band regulating circuit using a helical coil and an electronic device having the same are provided to constitute the frequency band regulating circuit having the helical coil at backend of a general signal antenna and to realize connection between communication ways of different frequency band, thereby simplifying the structure of an antenna and manufacturing process. CONSTITUTION: A second frequency of low frequency band which is lower than a first frequency by regulating a first frequency of high frequency which a helical coil(22-1) is received is outputted. A thin film-type conductive film transfers the first frequency. By responding to a frequency selection signal for connecting between communication methods of other frequency bands, a selector selectively outputs one between a first frequency of the high frequency band and a second frequency of the low frequency band through the helical coil and the thin film-type conductive film.
    • 目的:提供一种使用螺旋线圈的频带调节电路和具有该频带调节电路的电子设备,以构成在一般信号天线的后端具有螺旋线圈的频带调节电路,并实现不同频带的通信方式之间的连接, 从而简化了天线的结构和制造过程。 结构:通过调节接收螺旋线圈(22-1)的高频第一频率,低于第一频率的低频带的第二频率被输出。 薄膜型导电膜转移第一频率。 通过响应用于连接其他频带的通信方法的频率选择信号,选择器通过螺旋线圈选择性地输出高频带的第一频率和低频带的第二频率之一,并且薄膜型 导电膜。
    • 35. 发明公开
    • 무선통신장치
    • 无线电频率通信装置
    • KR1020100101498A
    • 2010-09-17
    • KR1020090020013
    • 2009-03-09
    • 엘지이노텍 주식회사
    • 조정훈
    • H04B1/48H04B1/50
    • H04B1/48H04B1/401H04B1/50
    • PURPOSE: A wireless communication device is provided to minimize signal loss due to signal processing by simplifying a circuit configuration. CONSTITUTION: A receiving end processes a receiving signal of a non-parallel state which is received by a transceiving antenna. A transmission end transmits to the transceiving antenna by processing a transmission signal of a non-parallel state. A communication control unit(110) outputs a mode selecting signal which selects a transmission mode and a receiving mode. According to the performance of the transmission mode and the receiving mode, the communication control unit processes a transmission signal and a receiving signal of a parallel state.
    • 目的:提供一种无线通信设备,通过简化电路配置,最大限度地减少信号处理造成的信号丢失。 构成:接收端处理由收发天线接收的非并行状态的接收信号。 发送端通过处理非并行状态的发送信号来发送到收发天线。 通信控制单元(110)输出选择发送模式和接收模式的模式选择信号。 根据传输模式和接收模式的性能,通信控制单元处理并行状态的发送信号和接收信号。
    • 37. 发明公开
    • 통신 시스템에서 신호 송수신 장치 및 방법
    • 用于在通信系统中发送和接收信号的装置和装置
    • KR1020070113680A
    • 2007-11-29
    • KR1020060047239
    • 2006-05-25
    • 삼성전자주식회사
    • 안철우
    • H04B7/204H04B7/208H04B7/212
    • H04B1/50H04B1/44H04B7/208H04B7/212
    • A signal transceiving device in a communication system and a method are provided to support both TDD(Time Division Duplexing) and FDD(Frequency Division Duplexing) modes, and to realize high isolation between transceiving paths in TDD and FDD systems using high power. A signal transceiving device comprises as follows. Transceivers transmit and receive signals corresponding to TDD and FDD modes. A duplexer(307) transceives signals through an antenna, and branches the signals into transmission signals and reception signals. A switch unit(305) controls paths of the transmission signals and the reception signals according to a signal transceiving method used in the signal transceiving device.
    • 提供通信系统中的信号收发装置和方法以支持TDD(时分双工)和FDD(频分双工)模式,并且在使用高功率的TDD和FDD系统中实现收发路径之间的高度隔离。 信号收发装置如下。 收发信机发送和接收对应于TDD和FDD模式的信号。 双工器(307)通过天线收发信号,并将信号分支为传输信号和接收信号。 开关单元(305)根据在信号收发装置中使用的信号收发方法来控制发送信号和接收信号的路径。
    • 38. 发明公开
    • 휴대용 단말기 및 그의 무선통신 서비스방법
    • 移动终端和无线通信服务方法
    • KR1020070103257A
    • 2007-10-23
    • KR1020060035133
    • 2006-04-18
    • 엘지전자 주식회사
    • 정영일
    • H04B1/40H04L12/66
    • H04B1/50H04L12/66H04W48/16
    • A mobile terminal and its wireless communication service method are provided to enable a mobile terminal to change a lower network to a higher network to continuously receive radio data when the higher network is searched while using the wireless data through the lower network, to thus provide an improved wireless communication service. A wireless communication unit(31) performs corresponding wireless communication in a mobile communication network. A controller(35) controls the wireless communication unit to search an upper mobile communication network during radio communication in the mobile communication network according to a mobile communication method, and perform radio communication by being tuned with the searched mobile communication network. The controller controls to periodically search a higher mobile communication network of CDMA 1X network by counting time in a state of being tuned with a 2G communication network. When the CDMA 1X network is searched, the controller controls to enter a dormant state and then be tuned with the CDMA 1X network.
    • 提供一种移动终端及其无线通信服务方法,以便当移动终端在通过较低网络使用无线数据时搜索较高的网络时使移动终端能够将较低的网络更改为较高的网络,以连续地接收无线电数据,从而提供 改进的无线通信服务。 无线通信单元(31)在移动通信网络中执行相应的无线通信。 控制器(35)根据移动通信方法控制无线通信单元在移动通信网络中的无线电通信期间搜索上层移动通信网络,并通过利用搜索到的移动通信网络进行调谐来执行无线电通信。 控制器通过在用2G通信网络调谐的状态下计数时间来周期性地搜索CDMA 1X网络的较高移动通信网络。 当搜索到CDMA 1X网络时,控制器控制进入休眠状态,然后用CDMA 1X网络进行调谐。
    • 40. 发明公开
    • 다중대역용 신호처리장치
    • 用于处理多信号信号的装置
    • KR1020020031465A
    • 2002-05-02
    • KR1020000061952
    • 2000-10-20
    • 엘지이노텍 주식회사
    • 조진용
    • H04B1/40
    • H04W88/06H04B1/50H04L27/2601
    • PURPOSE: An apparatus for processing a multiband signal is provided to miniaturize a terminal and decrease production costs by using single device driving unit. CONSTITUTION: The first switching unit(12) classifies signals with a multi-frequency band received from an antenna(11) according to each frequency band. A filtering and amplifying unit(13) connects to the first switching unit(12) and filters and amplifies signals to be suitable for a corresponding frequency band. A single device driving unit(18) amplifies the signal outputted from the filtering and amplifying unit(13) to be suitable for the driving of a system. The second switching unit(19) performs the transmission of the signal between the filtering and amplifying unit(13) and the single device driving unit(18).
    • 目的:提供一种用于处理多频带信号的装置,以使终端小型化,并通过使用单个设备驱动单元降低生产成本。 构成:第一开关单元(12)根据每个频带对从天线(11)接收的多频带的信号进行分类。 滤波和放大单元(13)连接到第一开关单元(12)并对适于相应频段的信号进行滤波和放大。 单个设备驱动单元(18)将从滤波和放大单元(13)输出的信号放大为适于驱动系统。 第二切换单元(19)执行滤波放大单元(13)和单个设备驱动单元(18)之间的信号的发送。