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1. 发明专利

JP2015035789A 無線通信装置及び無線通信制御プログラム有权
标题翻译：无线电通信设备和无线电通信控制程序
公开(公告)号：JP2015035789A
公开(公告)日：2015-02-19
申请号：JP2013167073
申请日：2013-08-09
申请人：富士通株式会社 , Fujitsu Ltd
发明人： NISHIMURA TAKAMASA , KAKIZAKI SHINJI , OTA MUTSUTO , NAKADA YOJI , WATANABE YASUNOBU , HASE SETSUYA , KUDO ATSUSHI , SAITO MASAAKI
IPC分类号： H04B7/08 , H04M1/00 , H04W88/02
摘要：【課題】実行されるアプリケーションに応じて装置の保持態様が変化した場合でも、信号の送受信に最適なアンテナを迅速に選択すること。【解決手段】無線通信装置は、複数のアンテナと、記憶部と、判定部と、選択部とを有する。複数のアンテナは、切り替え可能な複数のアンテナである。記憶部は、実行対象となる複数のアプリケーションの各々に対応付けて、複数のアプリケーションの各々の実行時に複数のアンテナの各々によって受信される信号の受信特性に応じて決定される、複数のアンテナの各々の優先度を記憶する。判定部は、複数のアプリケーションのうち自装置によって現在実行されているアプリケーションである実行アプリケーションを判定する。選択部は、実行アプリケーションに対応付けて記憶部に記憶されている優先度に基づいて、複数のアンテナから信号の送受信に用いるアンテナを選択する。【選択図】図4
摘要翻译：要解决的问题：即使当设备的保持状况根据执行的应用而改变时，也可以快速选择用于发送/接收信号的最佳天线。解决方案：一种无线电通信设备，包括：多个天线; 存储单元; 确定单元; 和选择单元。多个天线是能够切换的多个天线。存储单元存储多个天线中的每一个的优先级，每个天线的每一个根据多个天线中的每一个接收的信号的接收特性确定，当执行要执行的目标的多个应用中的每一个与每个天线相关联时，的多个应用程序。确定单元确定多个应用程序中作为当前由无线电通信装置正在执行的应用程序的执行应用程序。选择单元基于与执行应用相关联地存储在存储单元中的优先级，从多个天线中选择要用于发送/接收信号的天线。

2. 发明专利

JPH1127012A SIGNAL SWITCH-OVER COMPOSITE CIRCUIT 失效
公开(公告)号：JPH1127012A
公开(公告)日：1999-01-29
申请号：JP17609997
申请日：1997-07-01
申请人： FUJITSU LTD
发明人： KISHIGAMI KAZUNARI , OTA MUTSUTO , CHONO GAKUYO , IWATSUKI HAJIME , UEDA HIROKAZU
IPC分类号： H01P1/10 , H01P1/15 , H01P5/16
摘要： PROBLEM TO BE SOLVED: To keep the same circuit loss for the signals outputted from a 1st terminal between the time when the signals are inputted to only a 2nd terminal and the time when the signals are inputted only to a 3rd terminal by adding a phase shift circuit to the 2nd terminal to shift the phase of an input signal by 1/4 wavelength. SOLUTION: A 1st output terminal 30a of a 90-degree high frequency distributor 30 is connected to a terminal OUT1, and the terminal OUT1 is connected to an antenna. Meanwhile, a 2nd terminal 30b having a 0-degree normal phase of the distributor 30 is connected to a diode switch 38 via a κ/4 microstrip line (λ: signal wavelength) serving as a phase shift circuit 34. Then a 3rd terminal 30c of a 90-degree pass phase is connected to a diode switch 40. In such a constitution, the same circuit loss is kept for the signals which are outputted from the terminal 30a between the time when the signals are inputted to only the terminal 30b and the time when the signals are inputted only to the terminal 30c.

3. 发明专利

JP2009055378A Radio equipment and distortion compensation method for the radio equipment 审中-公开
标题翻译：无线电设备的无线电设备和失真补偿方法
公开(公告)号：JP2009055378A
公开(公告)日：2009-03-12
申请号：JP2007220358
申请日：2007-08-27
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OTA MUTSUTO , NAKADA YOJI , IWAI KENJI
IPC分类号： H04B1/04 , H04B1/69 , H04B1/7097
摘要： PROBLEM TO BE SOLVED: To miniaturize a circuit without deteriorating reception characteristics, when transmitting/receiving signals using radio equipment, including a plurality of modulation units, constituted of a plurality of transmission systems for transmitting signals adaptive to a plurality of frequency bands to the outside, and a plurality of reception systems for similarly receiving signals from the outside.
SOLUTION: The radio equipment includes a plurality of modulation units. When transmitting/receiving signals by a plurality of transmission systems for transmitting signals that are adaptive to a plurality of frequency bands, to the outside and a plurality of reception systems for similarly receiving signals from the outside; a signal inputted to each of the plurality of transmission systems in each of the plurality of modulation units is distributed to a reception system of a modulation unit which is different from the transmission system to which the signal has been inputted; the distributed signals are fed back to the transmission system to which the signal has been inputted; the fed-back signals are compared with the inputted signal, to extract a distortion component generated; and the extracted distortion component is added to the inputted signal to compensate for distortion.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了使电路小型化，不会恶化接收特性，当使用包括多个调制单元的无线电设备发送/接收信号时，由多个发送系统构成，用于发送适应多个频带的信号以及用于从外部类似地接收信号的多个接收系统。解决方案：无线电设备包括多个调制单元。当通过多个传输系统发送/接收信号以发送适合于多个频带的信号时，向外部发送/接收信号，以及用于从外部类似地接收信号的多个接收系统; 输入到多个调制单元中的每一个的多个发送系统中的每一个的信号被分配给与已输入信号的发送系统不同的调制单元的接收系统; 分配的信号被反馈到已经输入信号的传输系统; 将反馈信号与输入信号进行比较，以提取产生的失真分量; 并且将所提取的失真分量添加到输入的信号中以补偿失真。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2004032347A Pll frequency synthesizer 审中-公开
公开(公告)号：JP2004032347A
公开(公告)日：2004-01-29
申请号：JP2002185551
申请日：2002-06-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SASAKI AKIO , OTA MUTSUTO , HANAKA MITSUNORI
IPC分类号： H03L7/16 , H03L7/093 , H03L7/10 , H04B1/26
摘要： PROBLEM TO BE SOLVED: To provide a PLL frequency synthesizer adopting a full band cover configuration that stably outputs a signal with frequencies of upper and lower bands. SOLUTION: The PLL frequency synthesizer includes: a voltage-controlled oscillator 6; a frequency converter 8 that receives a local input signal and a first intermediate frequency signal resulting from frequency-dividing an output signal from the voltage-controlled oscillator 6 by a fixed frequency divider 7; a phase comparator 4 for applying frequency division to a second intermediate frequency signal from the frequency converter 8 and phase-comparing the frequency-divided second intermediate frequency signal with a reference comparison signal; and a loop filter 5 for receiving an output signal from the phase comparator 4 to use it for a control voltage of the voltage-controlled oscillator 6. The voltage-controlled oscillator 6 is configured to have an oscillating frequency band capable of covering the full band including the lower and upper bands. An oscillated frequency limit circuit 9 limits a control voltage of the voltage-controlled oscillator 6 to block the oscillation of the frequency band other than the lower band when the lower band is selected and limits the control voltage of the voltage-controlled oscillator 6 to block the oscillation of the frequency band other than the upper band when the upper band is selected. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2013207756A Radio communication apparatus 有权
标题翻译：无线电通信设备
公开(公告)号：JP2013207756A
公开(公告)日：2013-10-07
申请号：JP2012077825
申请日：2012-03-29
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASE SETSUYA , KAKIZAKI SHINJI , NAKADA YOJI , OTA MUTSUTO
IPC分类号： H04B1/40
CPC分类号： H04L5/14 , H04B1/0475 , H04B17/14 , H04L27/364
摘要： PROBLEM TO BE SOLVED: To accurately correct ripple deviation with a simple configuration while suppressing increase in apparatus scale of a radio communication apparatus.SOLUTION: A radio communication apparatus 10 comprises: a control unit 101 for switching switches 108, 112, and 117 to the a side in a correction value calculation mode; a modulation processing unit 102 for generating a CW signal as an I channel signal; a DAC 103 for converting a digital CW signal to an analog CW signal; an LPF 104 for removing a high frequency component of a CW signal; a mixer 105 for functioning as an up-converter performing up-conversion on a CW signal; a PA 114 for amplifying power of a CW signal; a mixer 109 for functioning as a down-converter performing down-conversion on a CW signal; an ADC 118 for converting an analog CW signal to a digital CW signal; a level detection unit 119 for detecting a voltage level of a CW signal; a correction value calculation unit 120 for calculating a correction value on the basis of the detected voltage level; and a correction value storage unit 121 for storing the calculated correction value.
摘要翻译：要解决的问题：为了在抑制无线电通信装置的设备规模的增加的同时以简单的配置精确地校正纹波偏差。解决方案：无线电通信装置10包括：控制单元101，用于将开关108,112和117切换到校正值计算模式的一侧; 用于产生作为I信道信号的CW信号的调制处理单元102; 用于将数字CW信号转换为模拟CW信号的DAC 103; 用于去除CW信号的高频分量的LPF 104; 混频器105，用于在CW信号上执行上转换; 用于放大CW信号的功率的PA 114; 用作在CW信号上执行下转换的下变换器的混频器109; 用于将模拟CW信号转换为数字CW信号的ADC 118; 电平检测单元119，用于检测CW信号的电压电平; 校正值计算单元120，用于基于检测到的电压电平来计算校正值; 以及用于存储所计算的校正值的校正值存储单元121。

6. 发明专利

JPH07135427A HIGH FREQUENCY MIXER CIRCUIT 失效
公开(公告)号：JPH07135427A
公开(公告)日：1995-05-23
申请号：JP28284893
申请日：1993-11-12
申请人： FUJITSU LTD
发明人： KAKIZAKI SHINJI , IKUTA HIDEKI , MITSUYASU MITSUHIKO , OTA MUTSUTO , MIMURO TAKAFUMI
IPC分类号： H03D7/00 , H03D7/12 , H04B1/26
摘要： PURPOSE:To obtain a small sized high frequency mixer circuit from which the same conversion gain as the case with using a conventional microstrip line by inputting efficiently an RF signal input and an LO signal input to a base of a common emitter transistor(TR) of a mixer circuit as a matching circuit with respect to inputs. CONSTITUTION:Bases of a 1st TR1 and 2nd TR2 of common emitter connection receive an input local carrier signal LO and a radio signal RF respectively and each collector output is given to a base of a common emitter 3rd TR3. Then an emitter of the 1st TR1 and a collector of the 2nd TR2 are connected by an inductor 4 isolated in terms of high frequency and conducted directly in terms of DC thereby obtaining an output signal IF whose frequency is converted from a collector of the 3rd TR3.

7. 发明专利

JP2012199837A Portable wireless communication device 有权
标题翻译：便携式无线通信设备
公开(公告)号：JP2012199837A
公开(公告)日：2012-10-18
申请号：JP2011063403
申请日：2011-03-22
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASE SETSUYA , KAKIZAKI SHINJI , NAKADA YOJI , OTA MUTSUTO , OTSUKI HIROYUKI
IPC分类号： H04B1/16 , H03G3/20 , H03G3/30 , H04M1/73
CPC分类号： Y02D70/00 , Y02D70/40
摘要： PROBLEM TO BE SOLVED: To provide a portable wireless communication device capable of reducing power consumption.SOLUTION: An I-side RF unit 4 has a VGA 43, and generates an I signal from an input signal. A Q-side RF unit 5 has a VGA 53, and generates a Q signal from the input signal. A gain adjustment unit 9 calculates a proper gain of the VGAs 43 and 53 based on a reception level of the I signal generated by the I-side RF unit 4, and sets gains of the VGAs 43 and 53 for the proper gain. A base band processing unit 10 performs data demodulation processing to the I signal generated by the I-side RF unit 4 having the VGA 43 that was set to the proper gain and the Q signal generated by the Q-side RF unit 5 having the VGA 53 that was set to the proper gain. A power supply controller 13 stops power supply to the Q-side RF unit 5 until the gain adjustment unit 9 calculates the proper gain.
摘要翻译：解决的问题：提供能够降低功耗的便携式无线通信装置。解决方案：I侧RF单元4具有VGA 43，并且从输入信号产生I信号。 Q侧RF单元5具有VGA 53，并从输入信号产生Q信号。增益调整单元9基于由I侧RF单元4产生的I信号的接收电平来计算VGA 43和53的适当增益，并且为了适当的增益设置VGA 43和53的增益。基带处理单元10对具有被设置为适当增益的VGA 43的I侧RF单元4产生的I信号和由具有VGA的Q侧RF单元5生成的Q信号执行数据解调处理这被确定为适当的收益。电源控制器13停止对Q侧RF单元5的供电，直到增益调整单元9计算适当的增益。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2011114367A Communication terminal, communication circuit, and communication method 有权
标题翻译：通信终端，通信电路和通信方法
公开(公告)号：JP2011114367A
公开(公告)日：2011-06-09
申请号：JP2009266198
申请日：2009-11-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OTA MUTSUTO , MAEDA MITSUNORI , MURAKAMI MANABU , TAKAHASHI SHIGEKI , SUGANO HIROTOSHI , KISHIGAMI KAZUNARI , NAKADA YOJI , HASE SETSUYA , IWAI KENJI , KUDO ATSUSHI , HACHITANI NOBUHIDE , FURUYA ATSUSHI
IPC分类号： H04B1/04
摘要： PROBLEM TO BE SOLVED: To provide a multi-band enabled communication terminal capable of satisfying demand for miniaturization, power saving and low pricing, and to provide a communication circuit and a communication method.
SOLUTION: A distribution signal generator 12 generates a first distribution signal and a second distribution signal from a transmission signal outputted from a third frequency band output 11c. Then, a first amplifier 13a amplifies the first distribution signal, and a second amplifier 13b amplifies the second distribution signal. Thereafter, a synthesis processor 15 synthesizes the first distribution signal amplified by the first amplifier 13a and the second distribution signal amplified by the second amplifier 13b to send out the synthesized signal as radio waves of a third frequency band. Therefore, In the multi-band supported communication terminal 100 where radio communications are performed by signals of a first frequency band, a second frequency band, and the third frequency band, an amplifier having characteristics conforming to a transmission signal of the third frequency band can be omitted.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供能够满足小型化，省电和低价格的需求的多频带使能通信终端，并提供通信电路和通信方法。解决方案：分配信号发生器12根据从第三频带输出11c输出的发送信号产生第一分配信号和第二分配信号。然后，第一放大器13a放大第一分配信号，第二放大器13b放大第二分配信号。此后，合成处理器15合成由第一放大器13a放大的第一分配信号和由第二放大器13b放大的第二分配信号，以将合成信号作为第三频带的无线电波发出。因此，在通过第一频带，第二频带和第三频带的信号执行无线电通信的多频带支持通信终端100中，具有符合第三频带的发送信号的特性的放大器可以被省略版权所有（C）2011，JPO＆INPIT

9. 发明专利

JPH07226629A HIGH FREQUENCY MIXER CIRCUIT 失效
公开(公告)号：JPH07226629A
公开(公告)日：1995-08-22
申请号：JP1561294
申请日：1994-02-10
申请人： FUJITSU LTD
发明人： OTA MUTSUTO , KAWAKAMI MASAYUKI , SUGAWARA HIDEO , KAKIZAKI SHINJI , HASE SETSUYA
IPC分类号： H03D7/12
摘要： PURPOSE:To lower a voltage and to reduce power consumption by adding the first high frequency signal of a frequency f1 to the base of a first transistor TR, adding the second high frequency signal of the frequency f2 to the base of a second TR and taking out frequency conversion signals from the collector of the second TR. CONSTITUTION:When the high frequency signal of the frequency f1 is inputted through a capacitor C1 to the base of the TR1, the TR1 amplifies the high frequency signal of the frequency f1 and outputs it from the collector and the high frequency signal of the frequency f1 is impressed to the emitter of the TR2. In the meantime, since the local oscillation signal of the frequency f2 is inputted through the capacitor C. to the base of the TR2, the signal of the frequency (f1+ or -f2,) the signal of the frequency f1 and the signal of the frequency f2, etc., appear on the side of the collector by the nonlinear operation of the TR2. Only the signal of the frequency (f1+ or -f2)=f3 is taken out through the capacitor C3. Since the high frequency signal and the local oscillation signal are respectively added to the bases of the different TRs, separation of the signals are sufficient and supply to the corresponding TRs is efficiently performed. Also, since only one power source Vc2 or Vc1 is sufficient for a bias voltage supply part 2 and a high frequency mixer part 3, the power consumption is reduced.

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