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1. 发明授权

US06759887B2 Mixer circuit 失效
标题翻译：搅拌机电路
公开(公告)号：US06759887B2
公开(公告)日：2004-07-06
申请号：US10450819
申请日：2003-06-18
申请人： Yoshinori Takahashi , Hiroyuki Joba
发明人： Yoshinori Takahashi , Hiroyuki Joba
IPC分类号： G06F744
CPC分类号： H03D7/1425 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D2200/0025
摘要： A mixer circuit includes a local frequency multiplication unit including a pair of transistors having bases receiving local oscillation waves inverted in phase. A reference transistor is differentially connected with the pair of transistors. The pair of transistors and the reference transistor have their emitters connected to a collector of a modulated wave input transistor having a base receiving a modulated wave signal and an emitter connected to a constant current source, and have their collectors connected to a load. The commonly connected collectors of the pair of transistors and the collector of the reference transistor output modulation signals inverted in phase. The sum of currents flowing through the pair of transistors and the reference transistor equals the constant current of the constant current source flowing through the modulated wave input transistor, and the mixer circuit has a gain.
摘要翻译：混频器电路包括本地倍频单元，其包括具有接收相位反转的本地振荡波的基极对的一对晶体管。参考晶体管与该对晶体管差分连接。一对晶体管和参考晶体管的发射极连接到具有接收调制波信号的基极和连接到恒定电流源的发射极的调制波输入晶体管的集电极，并且使它们的集电极连接到负载。一对晶体管的共同连接的集电极和参考晶体管的集电极输出调制信号同相反相。流过该对晶体管和参考晶体管的电流的总和等于流经调制波输入晶体管的恒流源的恒定电流，并且混频器电路具有增益。

2. 发明授权

US08681913B2 Reception circuit 有权
标题翻译：接收电路
公开(公告)号：US08681913B2
公开(公告)日：2014-03-25
申请号：US13295052
申请日：2011-11-12
申请人： Naohisa Takayama , Ryoji Hayashi , Hiroyuki Joba , Morishige Hieda
发明人： Naohisa Takayama , Ryoji Hayashi , Hiroyuki Joba , Morishige Hieda
IPC分类号： H03D1/00
CPC分类号： H04L7/042
摘要： A reception circuit is provided which can detect the beginning of data regardless of a preamble or a unique word contained or not in a received signal and regardless of coding systems for received signals. The reception circuit includes a correlation operation portion that performs a correlation operation to generate a correlation signal while sliding one symbol of reference signal in relation to a received signal. The reference signal goes to a high level during a first half symbol period and goes to a low level during a second half symbol period. The reception circuit further includes: a delay portion that outputs a delay signal by delaying the received signal for a half symbol period in relation to the received signal; and a data beginning timing detection portion that detects a beginning peak timing for the correlation signal as a beginning timing of data contained in the delay signal.
摘要翻译：提供了一种可以检测数据开始的接收电路，而不管前置码或包含或不包含在接收信号中的唯一字，而不管接收信号的编码系统如何。接收电路包括相关操作部分，其执行相关操作以产生相关信号，同时相对于接收信号滑动参考信号的一个符号。参考信号在第一半符号周期期间进入高电平，并且在后半个符号周期期间变为低电平。接收电路还包括：延迟部分，通过相对于所接收的信号延迟接收信号半个符号周期来输出延迟信号; 以及数据开始定时检测部分，其将相关信号的开始峰值定时检测为包含在延迟信号中的数据的开始定时。

3. 发明授权

US06784743B2 High frequency amplifier and frequency mixer 有权
标题翻译：高频放大器和混频器
公开(公告)号：US06784743B2
公开(公告)日：2004-08-31
申请号：US10182397
申请日：2002-07-30
申请人： Eiji Taniguchi , Noriharu Suematsu , Chiemi Sawaumi , Kenichi Maeda , Takayuki Ikushima , Hiroyuki Joba , Tadashi Takagi
发明人： Eiji Taniguchi , Noriharu Suematsu , Chiemi Sawaumi , Kenichi Maeda , Takayuki Ikushima , Hiroyuki Joba , Tadashi Takagi
IPC分类号： H03F319
CPC分类号： H03F3/72 , H03D7/1408 , H03D7/1433 , H03D7/1458 , H03D7/1491 , H03D2200/0033 , H03D2200/0043 , H03F1/302 , H03F3/19 , H03F3/45089 , H03F2200/249 , H03F2200/301 , H03F2200/492 , H03F2200/54 , H03F2203/7206
摘要： A high frequency amplifier in which a common emitter bipolar transistor is used, and in that a constant current source and a constant voltage source are switched to apply a DC bias to a base terminal of the bipolar transistor in accordance with a power level of a high frequency signal input to the bipolar transistor or a power level of a high frequency signal output therefrom, and a frequency mixer in that a DC bias is applied to a base of at least one of a bipolar transistor for the input of a high frequency signal and a bipolar transistor for the input of a local oscillation wave by using a configuration for applying the DC bias to a base of an amplifying bipolar transistor employed in the high frequency amplifier.
摘要翻译：使用公共发射极双极晶体管的高频放大器，并且切换恒流源和恒压源，以根据高电平的功率电平向双极晶体管的基极端施加DC偏置输入到双极晶体管的高频信号或从其输出的高频信号的功率电平，以及混频器，其中DC偏压被施加到用于输入高频信号的双极晶体管中的至少一个的基极，以及用于通过使用将DC偏压施加到在高频放大器中使用的放大双极晶体管的基极的配置来输入本地振荡波的双极晶体管。

4. 发明授权

US06750720B1 High-frequency amplifier 失效
标题翻译：高频放大器
公开(公告)号：US06750720B1
公开(公告)日：2004-06-15
申请号：US10149390
申请日：2002-06-12
申请人： Kazutomi Mori , Shintarou Shinjo , Hiroyuki Joba , Yoshinori Takahashi , Yukio Ikeda , Tadashi Takagi
发明人： Kazutomi Mori , Shintarou Shinjo , Hiroyuki Joba , Yoshinori Takahashi , Yukio Ikeda , Tadashi Takagi
IPC分类号： H03F304
CPC分类号： H03F1/0261 , H03F1/302 , H03F3/19 , H03F3/343
摘要： Between resistors 13, 14 and an NPN bipolar transistor 12 are interposed PNP bipolar transistors 21, 22 forming a current mirror 20 that uses a collector current of the NPN bipolar transistor 12 as a reference current, and determines a collector current of an NPN bipolar transistor 11. This makes possible to design a size ratio A of the PNP bipolar transistors 21, 22 so as to approximate a voltage drop &Dgr;Vb to a value close to zero, and to suppress the voltage drop &Dgr;Vb of the base voltage Vb accordingly to achieve a high power output and high efficiency when a high frequency input signal Pin increases and generates a base rectified current.
摘要翻译：在电阻器13,14和NPN双极晶体管12之间插入形成使用NPN双极晶体管12的集电极电流作为参考电流的电流镜20的PNP双极晶体管21,22，并且确定NPN双极晶体管的集电极电流这使得可以设计PNP双极晶体管21,22的尺寸比A，以将电压降ΔVV近似为接近于零的值，并且相应地抑制基极电压Vb的电压降DeltaVb以实现当高频输入信号Pin增加并产生基极整流电流时，高功率输出和高效率。

5. 发明申请

US20140232467A1 HIGH-FREQUENCY AMPLIFIER MODULE AND HIGH-FREQUENCY AMPLIFIER MODULE UNIT 审中-公开
标题翻译：高频放大器模块和高频放大器模块
公开(公告)号：US20140232467A1
公开(公告)日：2014-08-21
申请号：US14237776
申请日：2012-08-24
申请人： Kenji Mukai , Kenichi Horiguchi , Morishige Hieda , Katsuya Kato , Yoshihito Hirano , Kazuya Yamamoto , Hiroyuki Joba , Teruyuki Shimura
发明人： Kenji Mukai , Kenichi Horiguchi , Morishige Hieda , Katsuya Kato , Yoshihito Hirano , Kazuya Yamamoto , Hiroyuki Joba , Teruyuki Shimura
IPC分类号： H03F3/195
CPC分类号： H03F3/195 , H03F1/0277 , H03F3/211 , H03F3/68 , H03F3/72 , H03F2200/111 , H03F2200/255 , H03F2200/423 , H03F2200/451 , H03F2203/7206 , H03F2203/7209
摘要： A high-frequency amplifier module includes a driver-stage amplifier 3 that amplifies an RF signal input thereto from an RF input terminal 1, and a final-stage amplifier 5 that amplifies the signal amplified by the driver-stage amplifier 3 and outputs the signal after the amplification to an RF output terminal 7. The driver-stage amplifier 3 is fabricated on a silicon substrate 11, while the final-stage amplifier 5 is fabricated on a gallium arsenide substrate. This configuration downsizes the cost while maintaining a high-frequency characteristic comparable to that in the case where all components of an entire module are fabricated on a gallium arsenide substrate 71.
摘要翻译：高频放大器模块包括：放大从RF输入端子1输入的RF信号的驱动级放大器3和放大由驱动级放大器3放大的信号的末级放大器5，并输出信号在放大到RF输出端子7之后。驱动级放大器3制造在硅衬底11上，而最后级放大器5制造在砷化镓衬底上。这种结构使成本降低，同时保持与在砷化镓基板71上制造整个模块的所有部件的情况相当的高频特性。

6. 发明申请

US20050176398A1 Mixer circuit 审中-公开
标题翻译：搅拌机电路
公开(公告)号：US20050176398A1
公开(公告)日：2005-08-11
申请号：US10515629
申请日：2002-08-23
申请人： Kenichi Maeda , Kenji Itoh , Hiroyuki Joba , Takayuki Ikushima , Yoshinori Takahashi
发明人： Kenichi Maeda , Kenji Itoh , Hiroyuki Joba , Takayuki Ikushima , Yoshinori Takahashi
IPC分类号： H03D7/00 , H03D7/14 , H04B1/26 , G06F7/44 , G06G7/16
CPC分类号： H03D7/1408 , H03D7/1433 , H03D7/1441 , H03D7/1458 , H03D7/1475 , H03D2200/0013
摘要： A mixer circuit mixes a target signal with a local oscillation signal to perform frequency conversion of the target signal. Since the mixer circuit uses a pseudo-sine wave as the local oscillation signal, it can carry out stable operation regardless of variations in the amplitude of the local oscillation signal.
摘要翻译：混频器电路将目标信号与本地振荡信号混合以执行目标信号的频率转换。由于混频器电路使用伪正弦波作为本地振荡信号，所以无论本地振荡信号的振幅的变化如何，均可以进行稳定的操作。

7. 发明授权

US06873208B2 High-frequency amplifier 失效
标题翻译：高频放大器
公开(公告)号：US06873208B2
公开(公告)日：2005-03-29
申请号：US10069664
申请日：2001-06-29
申请人： Shintaro Shinjo , Kazutomi Mori , Hiroyuki Joba , Hiroaki Nagano , Mitsuru Motizuki , Yukio Ikeda , Noriharu Suematsu
发明人： Shintaro Shinjo , Kazutomi Mori , Hiroyuki Joba , Hiroaki Nagano , Mitsuru Motizuki , Yukio Ikeda , Noriharu Suematsu
IPC分类号： H03F1/02 , H03F1/30 , H03F1/32 , H03F3/193 , H03F3/60 , H03G3/20
CPC分类号： H03F3/1935 , H03F1/0261 , H03F1/0266 , H03F1/302 , H03F3/193
摘要： A high-frequency amplifying unit 2 in which a steep gain variation developed according to a change in the amplitude of input high-frequency signal is suppressed is provided. It amplifies an input high-frequency signal with a plurality of transistors 12-1 to 12-N at the same time a measuring circuit 27 measures amplitude of the input high-frequency signal, and a bias control circuit 26 continuously controls a bias applied to each transistors 12-1 to 12-N according to the value of amplitude measured by the measuring circuit 27. Thus it is possible to suppress a steep gain variation produced according to a variation in the amplitude of input high-frequency signal.
摘要翻译：提供一种高频放大单元2，其中抑制了根据输入的高频信号的振幅的变化而产生的陡峭的增益变化。它同时用多个晶体管12-1至12-N放大输入高频信号，同时测量电路27测量输入的高频信号的幅度，偏置控制电路26连续地控制施加到每个晶体管12-1至12-N根据由测量电路27测量的振幅值。因此，可以抑制根据输入的高频信号的振幅的变化而产生的陡峭的增益变化。

8. 发明申请

US20120319746A1 ARRAY ANTENNA APPARATUS 有权
标题翻译：阵列天线装置
公开(公告)号：US20120319746A1
公开(公告)日：2012-12-20
申请号：US13581507
申请日：2011-02-22
申请人： Ryoji Hayashi , Yoshihito Hirano , Kiyohide Sakai , Mitsuhiro Shimozawa , Akira Inoue , Morishige Hieda , Hiroyuki Joba , Kenichi Tajima , Yoshinori Takahashi , Kazutomi Mori , Tomohiro Akiyama
发明人： Ryoji Hayashi , Yoshihito Hirano , Kiyohide Sakai , Mitsuhiro Shimozawa , Akira Inoue , Morishige Hieda , Hiroyuki Joba , Kenichi Tajima , Yoshinori Takahashi , Kazutomi Mori , Tomohiro Akiyama
IPC分类号： H03L7/00
CPC分类号： H01Q3/42 , H01Q3/30 , H01Q21/0025 , H04B17/0085
摘要： An array antenna apparatus in which an SN ratio is improved. Antenna elements having transmission modules, respectively, are arranged in plurality, wherein the plurality of transmission modules respectively have transmission signal generators that each output a transmission intermediate frequency signal, local oscillation signal generators that each output a local oscillation signal, and transmission mixers that each mix the transmission intermediate frequency signal and the local oscillation signal with each other, thereby to carry out frequency conversion to a transmission high frequency signal. A reference signal source inputs a reference signal to the transmission signal generators and the local oscillation signal generators. The transmission intermediate frequency signal and the local oscillation signal are synchronized with each other by the reference signal.
摘要翻译：提高SN比的阵列天线装置。分别具有发送模块的天线元件分别配置有多个发送模块，其中，所述多个发送模块分别具有各自输出发送中频信号的发送信号发生器，各自输出本地振荡信号的本地振荡信号发生器，以及各自输出本地振荡信号的发送混频器将发送中频信号和本地振荡信号彼此混合，从而对发送高频信号进行频率转换。参考信号源将参考信号输入到发送信号发生器和本地振荡信号发生器。发送中频信号和本地振荡信号通过参考信号彼此同步。

9. 发明授权

US07002396B2 Frequency converter 失效
标题翻译：频率转换器
公开(公告)号：US07002396B2
公开(公告)日：2006-02-21
申请号：US10481877
申请日：2002-03-15
申请人： Eiji Taniguchi , Chiemi Sawaumi , Noriharu Suematsu , Kenichi Maeda , Takayuki Ikushima , Hiroyuki Joba , Yoshinori Takahashi
发明人： Eiji Taniguchi , Chiemi Sawaumi , Noriharu Suematsu , Kenichi Maeda , Takayuki Ikushima , Hiroyuki Joba , Yoshinori Takahashi
IPC分类号： G06F7/44
CPC分类号： H03D7/12 , H03D7/1433 , H03D7/1441 , H03D7/1458
摘要： A frequency converter includes a transistor pair having a first transistor and a second transistor respectively having collector terminals commonly connected to each other and emitter terminals commonly connected to each other, the commonly-connected collector terminals of the transistor pair being connected to a power supply terminal by way of a first resistor, a third transistor having a collector terminal connected to the power supply terminal by way of a second resistor and an emitter terminal connected to the commonly-connected emitter terminals of the transistor pair, a third resistor having an end connected to the commonly-connected emitter terminals of the transistor pair, and another end grounded by way of a constant current source, and an output terminal connected to the commonly-connected collector terminals of the transistor pair. The frequency converter can exhibit an excellent saturation characteristic and an excellent distortion characteristic even when operating from a low voltage and/or a low current.
摘要翻译：一种频率转换器包括具有第一晶体管和第二晶体管的晶体管对，所述晶体管和第二晶体管分别具有彼此共同连接的集电极端子和共同连接的发射极端子，所述晶体管对的共同连接的集电极端子连接到电源端子通过第一电阻器，具有通过第二电阻器连接到电源端子的集电极端子和连接到晶体管对的共同连接的发射极端子的发射极端子的第三晶体管，具有端部连接的第三电阻器连接到晶体管对的共同连接的发射极端子，另一端通过恒定电流源接地，以及输出端子，连接到晶体管对的共同连接的集电极端子。即使从低电压和/或低电流进行工作，变频器也能表现出优异的饱和特性和优异的失真特性。

10. 发明授权

US06650181B2 High-frequency amplifier 失效
公开(公告)号：US06650181B2
公开(公告)日：2003-11-18
申请号：US10069601
申请日：2002-06-25
申请人： Shintaro Shinjo , Kazutomi Mori , Hiroyuki Joba , Hiroaki Nagano , Mitsuru Motizuki , Yukio Ikeda , Noriharu Suematsu
发明人： Shintaro Shinjo , Kazutomi Mori , Hiroyuki Joba , Hiroaki Nagano , Mitsuru Motizuki , Yukio Ikeda , Noriharu Suematsu
IPC分类号： H03G320
CPC分类号： H03F1/0266 , H03F1/0261 , H03F1/306 , H03F3/1935
摘要： A high-frequency amplifying unit 2 in which a steep gain variation developed according to a change in the amplitude of input high-frequency signal is suppressed is provided. It amplifies an input high-frequency signal with a transistor 12 at the same time a measuring circuit 27 measures amplitude of the input high-frequency signal, and a bias control circuit 26 continuously controls a bias applied to the transistor 12 according to the value of amplitude measured by the measuring circuit 27. Thus it is possible to suppress a steep gain variation produced according to a variation in the amplitude of input high-frequency signal.

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