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1. 发明专利

JP2004040447A Agc circuit 审中-公开
公开(公告)号：JP2004040447A
公开(公告)日：2004-02-05
申请号：JP2002194406
申请日：2002-07-03
申请人： Niigata Seimitsu Kk , Toyota Industries Corp , 新潟精密株式会社 , 株式会社豊田自動織機
发明人： MIYAGI HIROSHI
IPC分类号： H03G1/00 , H03G3/30 , H04B1/16
CPC分类号： H03G3/3052 , H03F2203/45408 , H03G1/0029 , H03G1/007
摘要： PROBLEM TO BE SOLVED: To reduce adverse effect caused by a pulsating component leaking from detection circuits to the minimum level in an AGC (Automatic Gain Control) circuit provided for an RF (Radio Frequency) receiver.
SOLUTION: The AGC circuit 200 provided for the RF receiver 100 is provided with the detection circuits 5, 5' detecting a radio frequency reception signal and outputting a detection signal containing the pulsating component and carries out the gain control of an RF amplification circuit 3 in accordance with the detection output. Where, the amplifiers (DC amplifiers 18, 19) connected to immediately after the detection circuits 5, 5' has a configuration for degrading its high-frequency characteristics. Or, a means for degrading the high-frequency characteristics is connected to the amplifiers. Thus, the pulsating component superimposed on detection output is removed to the minimum level.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2013135314A Differential output circuit 审中-公开
标题翻译：差分输出电路
公开(公告)号：JP2013135314A
公开(公告)日：2013-07-08
申请号：JP2011283952
申请日：2011-12-26
申请人： Toshiba Corp , 株式会社東芝
发明人： KAMEDA SATOSHI , AOYAMA TAKUMA
IPC分类号： H03K19/0175 , H04L25/02
CPC分类号： H03F3/45654 , H03F3/45183 , H03F3/45659 , H03F2203/45408 , H03F2203/45424 , H03F2203/45641 , H03F2203/45696 , H03F2203/45702 , H03F2203/45726 , H03K19/018528
摘要： PROBLEM TO BE SOLVED: To provide a differential output circuit that is applicable to both LVDS and CML schemes without any significant increase in circuit area.SOLUTION: The differential output circuit includes a current control circuit for, at a first setting, fixing a first variable current source at a certain value of impedance in controlling a current flow, and at a second setting, comparing a monitor voltage of a monitor node with a reference voltage and controlling the current flow through the first variable current source such that the monitor voltage becomes equal to the reference voltage. The differential output circuit includes a data signal control circuit for, at the first setting, controlling second and fourth MOS transistors on/off in response to second and fourth data signals while keeping first and third MOS transistors on, and at the second setting, controlling the first to fourth MOS transistors on/off in response to first to fourth data signals.
摘要翻译：要解决的问题：提供适用于LVDS和CML方案的差分输出电路，而不会显着增加电路面积。解决方案：差分输出电路包括电流控制电路，用于在第一设置下固定第一变量电流源在控制电流时具有一定的阻抗值，并且在第二设置下，将监视节点的监视电压与参考电压进行比较，并且控制通过第一可变电流源的电流，使得监视电压变得相等到参考电压。差分输出电路包括数据信号控制电路，用于在第一设置下响应于第二和第四数据信号控制第二和第四MOS晶体管的导通/截止，同时保持第一和第三MOS晶体管导通，并且在第二设置下控制响应于第一至第四数据信号，第一至第四MOS晶体管导通/截止。

3. 发明专利

JP3848683B2 amplifier 失效
公开(公告)号：JP3848683B2
公开(公告)日：2006-11-22
申请号：JP50825997
申请日：1996-07-26
申请人：コーニンクレッカフィリップスエレクトロニクスエヌヴィ
发明人：ウィリアムレッドマン−ホワイト
IPC分类号： H03F3/45 , H03F3/68
CPC分类号： H03F3/45708 , H03F3/45237 , H03F2203/45371 , H03F2203/45408

4. 发明专利

JPS59178005A Differential amplifier with biplar transistor 失效
标题翻译：具有双极晶体管的差分放大器
公开(公告)号：JPS59178005A
公开(公告)日：1984-10-09
申请号：JP5127584
申请日：1984-03-19
申请人： Centre Electron Horloger
发明人： ERIKU EI BUITOTSUTSU
IPC分类号： H03F3/193 , H01L21/8222 , H01L21/8249 , H01L27/06 , H03F3/45
CPC分类号： H03F3/4556 , H03F2203/45408 , H03F2203/45424

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