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1. 发明专利

JP2020198570A 可変利得回路、高周波スイッチ、およびトランジスタ回路审中-公开
公开(公告)号：JP2020198570A
公开(公告)日：2020-12-10
申请号：JP2019104517
申请日：2019-06-04
申请人：株式会社村田製作所
发明人：渡邊大介 , 冨田孝之
IPC分类号： H03F3/62 , H03K17/687 , H03G3/10
摘要：【課題】小型でかつ双方向増幅動作可能な可変利得回路を提供すること。【解決手段】可変利得回路1aは、高周波信号を入出力する入出力端子P1、P2と、入出力端子P1に接続された信号端子a、入出力端子P2に接続された信号端子b、および制御端子cを有するトランジスタM1と、互いに独立した第1可変電圧、第2可変電圧、第3可変電圧、および固定電圧にそれぞれ設定されるバイアス端子B1、B2、B3および基準電圧端子REFと、バイアス端子B1と信号端子aとの間に接続されたインピーダンス素子X1と、バイアス端子B2と信号端子bとの間に接続されたインピーダンス素子X2と、バイアス端子B3と制御端子cとの間に接続されたインピーダンス素子X3と、基準電圧端子REFと制御端子cとを接続するかしないかを切り替える第1スイッチS1と、を備える。【選択図】図1A

2. 发明专利

JP2014220672A 双方向増幅器审中-公开
标题翻译：两路放大器
公开(公告)号：JP2014220672A
公开(公告)日：2014-11-20
申请号：JP2013099048
申请日：2013-05-09
申请人：日本電波工業株式会社 , Nippon Dempa Kogyo Co Ltd
发明人： ONZUKA TATSUNORI
IPC分类号： H03F3/62 , H04B1/40
CPC分类号： H03F3/62 , H04B1/40
摘要：【課題】構成が簡易で安価な広帯域の双方向増幅器を提供する。【解決手段】 3dBカプラ1と、そのアイソレーションポートに接続された負性抵抗のダイオードであるガンダイオード2a,2bと、ガンダイオード2a,2bのアノードに一端が接続するコイル3a,3bと、コイル3a,3bの他端に一端が接続するコンデンサ4a,4bとバイアス電源5a,5bと、3dBカプラ1の入出力ポートに接続する入出力端子6a,6bとを備えるものであり、ガンダイオード2a,2bのカソードは接地され、コンデンサ4a,4bの他端は接地されている双方向増幅器である。【選択図】図1
摘要翻译：要解决的问题：提供一种廉价的宽带双向放大器，具有简单的配置。解决方案：双向放大器包括：3-dB耦合器1; 连接到3-dB耦合器1的隔离端口的负电阻二极管的耿氏二极管2a，2b; 线圈3a，3b一端连接到耿氏二极管2a，2b的阳极; 电容器4a，4b和一端连接到线圈3a，3b的另一端的偏置电源5a，5b; 以及连接到3dB耦合器1的输入/输出端口的输入/输出端子6a，6b。耿氏二极管2a，2b的阴极接地，电容器4a，4b的另一端接地。

3. 发明专利

JP2013247419A Amplifier, transmitter/receiver and communication device 审中-公开
标题翻译：放大器，发射器/接收器和通信设备
公开(公告)号：JP2013247419A
公开(公告)日：2013-12-09
申请号：JP2012118159
申请日：2012-05-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SHIBA SHOICHI
IPC分类号： H03F3/62 , H04B1/40
摘要： PROBLEM TO BE SOLVED: To provide an amplifier that can match a circuit impedance to signals in opposite directions in a simple circuit.SOLUTION: The amplifier comprises: a plurality of first transistors arranged in series between a first terminal and a second terminal and grounded at gates; a first inductor connected between the first terminal and a second transistor, which is one of the plurality of first transistors arranged at one end; a first switch connected between the first terminal and the second transistor so as to short during a first mode of outputting a signal received at the first terminal to the second terminal and open during a second mode of outputting a signal received at the second terminal to the first terminal; a second inductor connected between the second terminal and a third transistor, which is one of the plurality of first transistors arranged at the other end; and a second switch connected between the second terminal and the third transistor so as to open during the first mode and short during the second mode.
摘要翻译：要解决的问题：提供一种能够在简单电路中将电路阻抗与相反方向的信号相匹配的放大器。解决方案：放大器包括：串联布置在第一端子和第二端子之间的多个第一晶体管，门连接在第一端子和第二晶体管之间的第一电感器，第一晶体管是在一端排列的多个第一晶体管之一; 连接在第一端子和第二晶体管之间的第一开关，以便在将在第一端子处接收的信号输出到第二端子的第一模式期间短路，并且在将在第二端子处接收的信号输出到第二端子的第二模式期间断开第一码头连接在第二端子和第三晶体管之间的第二电感器，第三晶体管是在另一端排列的多个第一晶体管之一; 以及连接在第二端子和第三晶体管之间以在第一模式期间打开并在第二模式期间短路的第二开关。

4. 发明专利

JP2010515298A Time division duplex amplifier for network signals 审中-公开
公开(公告)号：JP2010515298A
公开(公告)日：2010-05-06
申请号：JP2009543203
申请日：2007-12-19
申请人：エントロピック・コミュニケーションズ,インコーポレイテッド
发明人：リー、ロナルド・ビー． , ワーナー、エドワード・ジェイ．
IPC分类号： H03F3/62 , H03F3/68
CPC分类号： H04L12/2892
摘要：時分割二重（ＴＤＤ）増幅器はネットワーク中の信号流の方向に対して必要とされるとき両方向で信号を増幅するため増幅方向を切換える。ＴＤＤ増幅器の切換えはネットワーク上における送信方向を決定するため通信チャンネルを監視することにより制御される。
【選択図】図１

5. 发明专利

JP2009290856A Passive equalizer 有权
标题翻译：被动均衡器
公开(公告)号：JP2009290856A
公开(公告)日：2009-12-10
申请号：JP2008258225
申请日：2008-10-03
申请人： Synerchip Technology Co Ltd , シナーチップテクノロジーシーオー.,エルティーディー.
发明人： LEE TZUEN-HWAN
IPC分类号： H03H11/04 , H03F3/62
CPC分类号： H04L25/03878
摘要： PROBLEM TO BE SOLVED: To provide a passive equalizer capable of using negative impedance to increase the gain. SOLUTION: A passive equalizer utilizing negative impedance to increase a gain includes a first RC loop, a second RC loop, a cascade RL circuit and a cross-coupled inverter unit. Each of the first and the second RC loops includes a first resistor, a second resistor connected in series to the first resistor at a node to thereby form a resistor series, and a capacitor connected in parallel to the resistor series. The cascade RL circuit is connected between the RC loops and includes a fifth resistor, a sixth resistor and an inductor, connected between the fifth resistor and the sixth resistor. The cross-coupled inverter unit is connected in parallel to the RL circuit and connected between the RC loops for using the feature of negative impedance to obtain a superior high-frequency gain. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够使用负阻抗来增加增益的无源均衡器。解决方案：利用负阻抗来增加增益的无源均衡器包括第一RC环路，第二RC环路，级联RL电路和交叉耦合的逆变器单元。第一和第二RC环路中的每一个包括第一电阻器，在节点处与第一电阻器串联连接从而形成电阻器串联的第二电阻器和与电阻器串联并联的电容器。级联RL电路连接在RC环路之间，并且包括连接在第五电阻器和第六电阻器之间的第五电阻器，第六电阻器和电感器。交叉耦合逆变器单元并联连接到RL电路，并连接在RC环路之间，用于使用负阻抗特性获得优异的高频增益。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP3721117B2 Input and output circuit and the reference voltage generation circuit and semiconductor integrated circuit 有权
公开(公告)号：JP3721117B2
公开(公告)日：2005-11-30
申请号：JP2001331397
申请日：2001-10-29
申请人：エルピーダメモリ株式会社
发明人：誠司船場
IPC分类号： H03K19/0175 , H03F1/56 , H03F3/62 , H03K19/0185 , H04L25/02
CPC分类号： H04L25/028 , H03K19/018592 , H04L25/0278 , H04L25/0292

7. 发明专利

JP2005184272A Relay amplifier for bidirectional communication and its control method 审中-公开
标题翻译：用于双向通信的继电放大器及其控制方法
公开(公告)号：JP2005184272A
公开(公告)日：2005-07-07
申请号：JP2003420176
申请日：2003-12-17
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TATSUTA AKIHIRO , SHIOMI TOMONORI , TANAKA OSAMU , WATANABE HIROYUKI , ARASHIN NOBUHIKO
IPC分类号： H03F3/62 , H04B3/36 , H04L5/14
摘要： PROBLEM TO BE SOLVED: To provide a relay amplifier for bidirectional communication operating over a wide frequency range in a time division multiplex communication system employing the same frequency.
SOLUTION: Upon detecting a signal from a first attenuation section 5, a first detecting section 9 controls a first switch section 7 to conduct and controls attenuation at a second attenuation section 6 to increase over a first predetermined attenuation. Upon detecting a signal from the second attenuation section 6, a second detecting section 10 controls a second switch section 8 to conduct and controls attenuation at the first attenuation section 5 to increase over a second predetermined attenuation.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于在采用相同频率的时分复用通信系统中在宽频率范围内工作的双向通信的中继放大器。解决方案：在检测到来自第一衰减部分5的信号时，第一检测部分9控制第一切换部分7，以传导和控制第二衰减部分6处的衰减，以增加第一预定衰减。在检测到来自第二衰减部分6的信号时，第二检测部分10控制第二开关部分8，以传导和控制第一衰减部分5处的衰减，以增加第二预定衰减。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004343545A Broadcasting satellite/communication satellite and cable television amplifier 有权
公开(公告)号：JP2004343545A
公开(公告)日：2004-12-02
申请号：JP2003139246
申请日：2003-05-16
申请人： Hitachi Kokusai Electric Inc , 株式会社日立国際電気
发明人： ECCHU NORIO
IPC分类号： H04N5/50 , H03F3/62 , H04N5/00 , H04N7/10 , H04N21/61
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of distortion that affects a CATV amplifier circuit by adjusting the output level of a BS (broadcasting satellite)/CS (communication satellite) amplifier circuit to be equal to a rating without using a measuring instrument.
SOLUTION: A BS/CS and CATV amplifier 50 is provided with a BS/CS amplifier circuit 20, a CATV downstream amplifier circuit 30 and a CATV upstream amplifier circuit 40 all connected between demultiplexer 13 and 14. A band pass filter 61 selects a signal of a frequency band of 10 to 55 MHz which affects the CATV upstream amplifier circuit 40 among signals outputted from an amplifier 25. The signal selected by the band pass filter 61 is amplified by amplifiers 62 and 63, then detected by a detector 64, converted to a direct current signal and further amplified by a direct current amplifier 65 to be inputted to a comparator 66. The comparator 66 compares the output signal of the direct current amplifier 65 with reference voltage, and outputs a signal to a display 67 to display the occurrence of distortion when the output signal of the direct current amplifier 65 exceeds the reference voltage.
COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2004310583A Communication system 审中-公开
公开(公告)号：JP2004310583A
公开(公告)日：2004-11-04
申请号：JP2003105144
申请日：2003-04-09
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MORIKAWA YUTAKA
IPC分类号： G06K17/00 , H03F3/62 , H04B5/02
摘要： PROBLEM TO BE SOLVED: To provide a communication range extending system for extending the communication range between a non-contact data carrier (a non-contact IC card) and a reader-writer (a card reader and a card writer). SOLUTION: A communication range extending system 300 has antenna parts 321 and 322 for communicating by using a radio wave between the non-contact IC card 100 stored with data and the card reader 200; amplifiers 331 and 332 for amplifying the radio wave for communication with the non-contact IC card 100; and a power source part 310 for supplying the amplifiers 331 and 332 with power. The amplifiers 331 and 332 amplify the amplitudes of the radio waves for communication to extend the communication range. COPYRIGHT: (C)2005,JPO&NCIPI

10. 发明专利

JP2004304613A Intrabuilding booster for bidirectional catv system 有权
公开(公告)号：JP2004304613A
公开(公告)日：2004-10-28
申请号：JP2003096426
申请日：2003-03-31
申请人： Maspro Denkoh Corp , マスプロ電工株式会社
发明人： SUGIYAMA KAZUO , YOSHIDA KEISUKE
IPC分类号： H03F3/62 , H04N7/10 , H04N7/16 , H04N21/61 , H04N21/647
摘要： PROBLEM TO BE SOLVED: To provide an intrabuilding booster 1 for a bidirectional CATV system which has no C/N deterioration and can save energy when operating up-stream signals at a high level.
SOLUTION: An amplifier circuit for up-stream signals 3 comprises a first amplifier 30, a passing line 31 connected to the first amplifier 30 in parallel, a selection means 32 for selecting and outputting an up-stream signal in the CATV system via either the first amplifier 30 connected in parallel or the passing line 31, a level adjusting means 33 connected to an output of the selection means 32, and a second amplifier 34 connected to the output of the level adjusting means 33. By selectively applying a DC voltage to the first amplifier 30 and the selection means 32, either the first amplifier 30 connected in parallel or the passing line 31 is selected.
COPYRIGHT: (C)2005,JPO&NCIPI

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