| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Multi-stage variable gain amplifier circuit | JP7709696 | 1996-03-29 | JP3479404B2 | 2003-12-15 | 貞男 五十嵐; 悟 卜部; 一晴 青木 |
| 182 | Transmission control circuit of Tdma communication machine | JP35064892 | 1992-12-04 | JP2753433B2 | 1998-05-20 | TANEMURA TAKESHI |
| 183 | Bi-directional amplifier | JP51410994 | 1994-11-16 | JPH09505450A | 1997-05-27 | アーチャー、ジョン・ウィリアム; バチェラー、ロバート・アレクサンダー |
| (57)【要約】 各ポートが入力としても出力としても機能することができる第１および第２の２端子ポート（Ｐ１，Ｐ２）を双方向性増幅器が備えている。 電界効果型トランジスタ（ＦＴ１）はゲート接地の接続構成であって、前記各ポート（Ｐ１，Ｐ２）における共通の（すなわち接地された）端子（Ｔ２，Ｔ４）が前記トランジスタ（ＦＴ１）のゲート（Ｇ）に少なくとも交流的に接続され、かつ、前記トランジスタ（ＦＴ１）のソース（Ｓ）とドレイン（Ｄ）がインピーダンス整合素子（Ｎ１，Ｌ１，Ｎ３，Ｌ３）を介して前記ポート（Ｐ１，Ｐ２）の他の端子（Ｔ１，Ｔ３）のうちの対応する一つの端子にそれぞれ接続されている。 | ||||||
| 184 | Transmission control circuit for tdma communication equipment | JP35064892 | 1992-12-04 | JPH06177797A | 1994-06-24 | TANEMURA TAKESHI |
| PURPOSE: To control rise and fall characteristic of a driving voltage to be applied to a high frequency amplifier so as to reduce the excess wave to be generated at the time of transmission to the minimum by the TDMA communication equipment. CONSTITUTION: 1st and 2nd driving voltages S1 and S2 with dissimilar rise and fall time constants are outputted from a driving voltage ON/OFF circuit B1. The 1st driving voltage S1 is applied to a pre-stage high frequency amplifier circuit A1 and the 2nd driving voltage S2 is applied to a post stage high frequency amplifier circuit A2. The time required to the rise of the driving voltage S1 applied to the pre-stage high frequency amplifier circuit A1 is longer than the time required to the rise of the ON/OFF switching signal S2 applied to the post stage high frequency amplifier circuit A2. The time required to the fall of the signal is shorter than the time required to the fall of the 2nd ON/OFF switching signal S2 applied to the post stage high frequency amplifier circuit A2. COPYRIGHT: (C)1994,JPO&Japio | ||||||
| 185 | Wide band amplifier | JP15120884 | 1984-07-23 | JPS6130108A | 1986-02-12 | MIZUKAMI HIROYUKI |
| PURPOSE:To allow a reverse transmission signal to pass without loss and to make bidirectional transmission possible by providing a filter having a selective frequency passage characteristic in parallel with a voltage feedback circuit between a base and a collector. CONSTITUTION:In case of forward transmission, the input signal of a base terminal 1 cannot reach a collector terminal 9 through a filter because the input signal is in the stop band of the filter 2, and the input signal is amplified by a wide band amplifier 10 and is outputted to the terminal 9. In case of reverse transmission, the input signal of the terminal 9 is outputted to the terminal 1 without loss through the filter because the input signal is in the pass band of the filter. | ||||||
| 186 | JPS598083B2 - | JP6619276 | 1976-06-07 | JPS598083B2 | 1984-02-22 | TAKAHASHI KENZO |
| 187 | Two-way amplification system under time-division control | JP4041380 | 1980-03-31 | JPS56137719A | 1981-10-27 | IGETA AKIYOSHI |
| PURPOSE:To simplify circuit constitution and to improve functions by stopping a backward refulx by time division. CONSTITUTION:Amplifier 3 from interlocutor 1 to interlocutor 2 turns on with time-vidision pulse string P1P3P5P7... and turns off with P2P4P6. Amplifier 5 from interlocutor 2 interlocutor 1 turns on with time-division pulse train P2P4P6... and turns off P1P3P5.... Gate 4 control amplifier 3 in time-division mode. Transmission from interlocutor 1 to 2 is performed by amplifier 3 only in the time zone of pulse train P1P3P5.... As a result, a reflux returning from interlocutor 1 to amplifier 3 via amplifier 3 and amplifier is not transmitted because of reversing in phase between pulse trains P1P2P3.... Similarly, a reflex from interlocutor 2 to 1 is not generated. | ||||||
| 188 | Transmission signal amplifier device | JP2984577 | 1977-03-17 | JPS53115118A | 1978-10-07 | SENJIYOU TOSHIAKI; ENDOU YOSHIAKI |
| PURPOSE:To secure the two-way amplification with use of one unit of the directional amplifier, by installing one-directional amplifier between the circuits and providing a means which switches and connects the circuit to the connecting parts between the input and output terminals of the amplifier and the circuit respectively. | ||||||
| 189 | JPS5329255B1 - | JP6483972 | 1972-06-28 | JPS5329255B1 | 1978-08-19 | |
| 190 | Bidirectional repeater | JP14804276 | 1976-12-08 | JPS5372413A | 1978-06-27 | YAMAZAKI AKIRA; IIDA KAZUYOSHI; YUSA HIROSHI |
| PURPOSE:To enable stable communication at upper and lower stream, by selecting a plural number of balanced circuits respectively provided at upperstream and down stream. | ||||||
| 191 | Two-way digital amplifier circuit | JP7068776 | 1976-06-14 | JPS52153314A | 1977-12-20 | INA YASUNOBU |
| PURPOSE:To achieve a two-way signal transmission through a simple logical circuit only using a pair of digital amplifiers, etc. | ||||||
| 192 | Bi-directional amplifier | JP15833075 | 1975-12-26 | JPS5279816A | 1977-07-05 | SUGIMOTO AKIHISA |
| PURPOSE:To match one element to a line by using negative resistance parallel to a line for only one element out of 4 elements on a T resistance bridge circuit, and to give equal emphasis to both directions. | ||||||
| 193 | Bidirection relay | JP6875475 | 1975-06-06 | JPS51144513A | 1976-12-11 | MIYA KENICHI |
| PURPOSE:A bi-directional amplifier circuit with a simplified construction. suitable for use in sealing seabed cable, capable of effecting continuously the signal transmission at a somewhat lower level even in the event that a fault may be caused in the amplifier. | ||||||
| 194 | Repeater | JP3827675 | 1975-03-28 | JPS51113406A | 1976-10-06 | INAO KIYOHARU |
| PURPOSE:This negative impedance repeater can be applied to wide frequency range. | ||||||
| 195 | JPS49107122A - | JP1087574 | 1974-01-25 | JPS49107122A | 1974-10-11 | |
| 196 | JPS4926004B1 - | JP8766669 | 1969-11-04 | JPS4926004B1 | 1974-07-05 | |
| 197 | BUFFER AMPLIFIER CIRCUIT | PCT/US2014027303 | 2014-03-14 | WO2014152402A3 | 2014-11-13 | LEE HAE-SEUNG |
| Amplifier circuits implemented with a buffer amplifier with a voltage gain substantially equal to one. In one example, a continuous-time amplifier is implemented by applying the input source across the input and the output terminals of the buffer amplifier. In another example, a discrete-time amplifier is implemented. During the sampling phase at least one input voltage is sampled, and during the transfer phase at least one capacitor is coupled across the input and the output terminals of a buffer amplifier to effectuate an amplification. | ||||||
| 198 | PROGRAMMABLE MICROWAVE CIRCUIT | PCT/SE2006000408 | 2006-04-05 | WO2006107261A9 | 2007-10-04 | OUACHA AZIZ; SAMUELSSON CARL |
| The present invention relates to a programmable microwave circuit (1 ) four ports (3), and combinations of such circuits. Between each pair of ports there is at least one connection without amplification, at least one connection having amplification from a first port of the pair of ports to a second port of the pair of ports, and at least one connection having amplification from the second port to the first port. Further, there is control electronics (2) with the ability to open and close the respective connection and respective port, by which the microwave circuit could be configured for different purposes, such as amplifier, power splitter/power combiner and router. | ||||||
| 199 | SEMICONDUCTOR AMPLIFIER CIRCUIT AND SYSTEM | PCT/JP9903648 | 1999-07-06 | WO0002307B1 | 2000-03-16 | HAYASHI JOJI; KIMURA HIROSHI |
| A semiconductor amplifier circuit is provided which comprises a cascode amplifier whose negative characteristic of output conductance is improved in at least a specific frequency range. The semiconductor amplifier (1) comprises a cascode amplifier (500) including cascaded transistors (101, 102) and means for improving the negative characteristic of output conductance (Gout) of the cascode amplifier (500) in at least a specific frequency range. | ||||||
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