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公开(公告)号：JP2011019108A
公开(公告)日：2011-01-27
申请号：JP2009162686
申请日：2009-07-09
发明人： TAKAGI TAKU , KADOI RYO , YAMAMOTO AKIO
IPC分类号： H04B1/16
摘要： PROBLEM TO BE SOLVED: To solve a problem wherein, in a receiver using an active filter, the filter must be always operated at a level of suppression obtained by assuming the worst reception condition, and power consumption is not restrained even in an excellent reception condition.SOLUTION: This receiver includes: at least two filter circuits; two signal intensity detection circuits arranged at the front stage and the rear stage of the filters; and a comparator for comparing signal intensity values detected by the two signal intensity detection circuits with each other; wherein the first and second filter circuits are each allowed to be changed over to a non-operation state by control from the comparator to reduce consumption current.
摘要翻译： 要解决的问题：为了解决这样一个问题，即在使用有源滤波器的接收机中，滤波器必须始终以通过假设最差的接收条件获得的抑制电平进行工作，并且即使在良好的接收条件下功率消耗也不被抑制 解决方案：该接收机包括：至少两个滤波电路; 两个信号强度检测电路布置在滤波器的前级和后级; 以及比较器，用于将由两个信号强度检测电路检测的信号强度值彼此进行比较; 其中通过来自比较器的控制将第一和第二滤波器电路分别转换到非操作状态以减少消耗电流。
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2.发明专利Electronic circuit module for mobile communication terminal, and circuit for mobile communication terminal equipped with the same 审中-公开用于移动通信终端的电子电路模块及其相关的移动通信终端电路
公开(公告)号：JP2010010765A
公开(公告)日：2010-01-14
申请号：JP2008164543
申请日：2008-06-24
发明人： TAKAGI TAKU , SUGIYAMA YOSHIICHI
IPC分类号： H04B1/50 , H04B1/38 , H04B1/3822 , H04M1/00
摘要： PROBLEM TO BE SOLVED: To provide an electronic circuit module for a multi-band compatible mobile communication terminal, capable of ensuring isolation between transmission and reception signals. SOLUTION: The electronic circuit module has a configuration in which a first transmission band filter for passing a transmission signal of a first communication band and a second transmission band filter for passing a transmission signal of a second transmission band are provided on a first substrate, a first reception band filter for passing a reception signal of a first communication band and a second reception band filter for passing a reception signal of a second communication band are provided on a second substrate, and thus a transmission signal path and a reception signal path are dividedly provided on different substrates. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译： 要解决的问题：提供一种能够确保发送和接收信号之间的隔离的用于多频带兼容的移动通信终端的电子电路模块。 解决方案：电子电路模块具有这样的配置，其中第一传输带滤波器用于通过第一通信频带的传输信号和第二传输频带滤波器，用于通过第二传输频带的传输信号 在第二基板上设置用于使第一通信频带的接收信号通过的第一接收频带滤波器和用于使第二通信频带的接收信号通过的第二接收频带滤波器，从而发送信号路径和接收信号 路径分别设置在不同的基板上。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2008131098A
公开(公告)日：2008-06-05
申请号：JP2006310596
申请日：2006-11-16
CPC分类号： H03F3/195 , H03F1/22 , H03F1/565 , H03F3/24 , H03F2200/108 , H03F2200/111 , H03F2200/294 , H03F2200/381 , H03F2200/387 , H03F2200/391 , H03F2200/451 , H03F2200/519 , H03F2200/75
摘要： PROBLEM TO BE SOLVED: To obtain a multiband and multimode radio device using a frequency band of 800 MHz to 10 GHz without increasing the circuit scale nor the cost.
SOLUTION: When the radio device is switched from a 800 MHz-band mobile phone system to a 9 GHz-band UWB communication system, a reactance element determined to match a load Z of a high-pass filter is connected to a transmission power amplifier output terminal in response to a signal for switching between the high-pass filter and a low-pass filter.
COPYRIGHT: (C)2008,JPO&INPIT摘要翻译： 要解决的问题：为了获得使用800MHz至10GHz的频带的多频和多模无线电设备，而不增加电路规模和成本。 解决方案：当无线电设备从800MHz频带移动电话系统切换到9GHz频带UWB通信系统时，确定为匹配高通滤波器的负载Z的电抗元件被连接到传输 功率放大器输出端子响应于用于在高通滤波器和低通滤波器之间切换的信号。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2010034762A
公开(公告)日：2010-02-12
申请号：JP2008193441
申请日：2008-07-28
发明人： KADOI RYO , TAKAGI TAKU , YAMAMOTO AKIO , SUGIYAMA YOSHIICHI
摘要： PROBLEM TO BE SOLVED: To achieve a size-reduction of a tuner IC and a receiver by simplifying each block constituting the tuner IC.
SOLUTION: A tunable antenna 1 is configured such that a resonance frequency is made variable by a variable-capacitance means (a varactor diode) 15. A tuner IC 2 executes frequency conversion of a signal, received by the tunable antenna 1, by using a signal of a voltage-controlled oscillator (VCO) 4 so as to execute desired channel-selection. Here, a capacitance value of the varactor diode 15 of the tunable antenna 1 is changed by using a VCO control signal 101 for controlling the VCO 4 in order to allow the resonance frequency of the tunable antenna 1 to follow the oscillation frequency of the VCO 4.
COPYRIGHT: (C)2010,JPO&INPIT摘要翻译： 要解决的问题：通过简化构成调谐器IC的每个块来实现调谐器IC和接收机的尺寸减小。 解调器：可调谐天线1被配置为使得谐振频率由可变电容装置（变容二极管）15变化。调谐器IC 2执行由可调天线1接收的信号的频率转换， 通过使用压控振荡器（VCO）4的信号来执行期望的信道选择。 这里，通过使用用于控制VCO4的VCO控制信号101来改变可调谐天线1的变容二极管15的电容值，以便可调谐天线1的谐振频率遵循VCO4的振荡频率 。版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009219023A
公开(公告)日：2009-09-24
申请号：JP2008062820
申请日：2008-03-12
发明人： TAKAGI TAKU , SUGIYAMA YOSHIICHI
IPC分类号： H04B1/50 , H03K17/00 , H04B1/18 , H04B1/3822 , H04B1/40
摘要： PROBLEM TO BE SOLVED: To solve the problem that in a MIMO (Multi-input Multi-output) system for transmitting different signals in parallel while using a plurality of antennas for both a transmitter and a receiver, since the antennas are disposed while being spatially separately, it is desired to dispose a first-stage amplifier of a receiving section at a position close to the antennas as further as possible but a component mount area cannot be avoided from being increased due to circuit redundancy and large scale. SOLUTION: A radio signal processing section, a radio module and a mobile communication terminal include: a filter and amplifier corresponding to a plurality of frequency bands; a band switching circuit; a signal terminal for inputting/outputting a signal on which a high frequency signal and a control signal have been superimposed; and an inductor and capacitor for separating the high frequency signal and the control signal from the signal inputted/outputted by the signal terminal. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译： 要解决的问题为了解决在用于发射机和接收机两者使用多个天线的情况下并行发送不同信号的MIMO（多输入多输出）系统中的问题，由于天线被布置 同时在空间上分开地，希望尽可能地将靠近天线的位置处的接收部分的第一级放大器配置，但是由于电路冗余和大规模，不能避免元件安装区域的增加。 解决方案：无线电信号处理部分，无线电模块和移动通信终端包括：对应于多个频带的滤波器和放大器; 频带切换电路; 用于输入/输出已经叠加了高频信号和控制信号的信号的信号端子; 以及用于从由信号端子输入/输出的信号分离高频信号和控制信号的电感器和电容器。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2009094713A
公开(公告)日：2009-04-30
申请号：JP2007262298
申请日：2007-10-05
发明人： TAKAGI TAKU , SUGIYAMA YOSHIICHI
IPC分类号： H04B1/3822 , H04B1/40
CPC分类号： Y02B60/50
摘要： PROBLEM TO BE SOLVED: To facilitate the design of a radio signal processing circuit for a mobile communication terminal, to reduce a mounting area and to reduce power consumption. SOLUTION: The output device comprises: a switch for switching a signal route to either one of a transmission route of a first communication system connected to the antenna of the mobile communication terminal, a reception route of the first communication system and a transmission/reception route of a second communication system; a low-pass filter connected to the transmission terminal of the first communication system among the switching terminals of the switch; a first band-pass filter connected to the reception terminal of the first communication system among the switching terminals of the switch; a first low noise amplifier connected to the first band-pass filter for amplifying signals which pass through the band-pass filter; a duplexer connected to the transmission/reception terminal of the second communication system among the switching terminals of the switch; a second low noise amplifier for amplifying the output signals of the duplexer; and a second band-pass filter connected to the second low noise amplifier. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译： 要解决的问题：为了便于移动通信终端的无线电信号处理电路的设计，减少安装面积并降低功耗。 解决方案：输出装置包括：用于将信号路由切换到连接到移动通信终端的天线的第一通信系统的传输路由中的任一个的开关，第一通信系统的接收路由和传输 /第二通信系统的接收路由; 连接到交换机的交换终端之间的第一通信系统的发送终端的低通滤波器; 第一带通滤波器，连接到开关的开关端子中的第一通信系统的接收端子; 连接到第一带通滤波器的第一低噪声放大器，用于放大通过带通滤波器的信号; 在交换机的切换终端之间连接到第二通信系统的发送/接收终端的双工器; 第二低噪声放大器，用于放大双工器的输出信号; 以及连接到第二低噪声放大器的第二带通滤波器。 版权所有（C）2009，JPO＆INPIT
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