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1. 发明申请

WO2006028288B1 EQUALIZING FILTER CIRCUIT 审中-公开
标题翻译：均衡滤波器电路
公开(公告)号：WO2006028288B1
公开(公告)日：2006-05-04
申请号：PCT/JP2005017077
申请日：2005-09-09
申请人： NEC CORP , WADA SHIGEKI , SUZUKI YASUYUKI
发明人： WADA SHIGEKI , SUZUKI YASUYUKI
IPC分类号： H03H15/00 , H04B3/04
CPC分类号： H04B3/142
摘要： An equalizing filter circuit comprising an input terminal (101); an output terminal (102); multistage delay elements (104) connected to the input terminal (101); and a plurality of weighting circuits (105) branching from the multiple delay elements; wherein output signals from the weighting circuits (105) are combined. The equalizing filter circuit is arranged such that the gain adjustment of the weighting circuits that decides the coefficient of the equalizing filter circuit can be set independently of a load connected to the output terminal, thereby increasing the amount of waveform distortion compensation. For this purpose, an impedance converting circuit (108) is connected between at least one of the weighting circuits (105) and the output terminal (102).
摘要翻译：一种均衡滤波器电路，包括一个输入端（101）; 一个输出端（102）; 连接到输入端子（101）的多级延迟元件（104）; 以及多个从多个延迟元件分支的加权电路（105）其中来自加权电路（105）的输出信号被组合。均衡滤波器电路被设置为使得可以独立于连接到输出端子的负载来设置决定均衡滤波器电路的系数的加权电路的增益调整，从而增加波形失真补偿量。为此，阻抗转换电路（108）连接在至少一个加权电路（105）和输出端子（102）之间。

2. 发明专利

AU2003241941A1 FEEDBACK AMPLIFIER HAVING AMPLIFIED SIGNAL PATH AND FEEDBACK SIGNAL PATH SEPARATED 未知
公开(公告)号：AU2003241941A1
公开(公告)日：2003-12-19
申请号：AU2003241941
申请日：2003-05-30
申请人： NEC CORP
发明人： WADA SHIGEKI , WATANABE YASUHIRO
IPC分类号： H03F1/48 , H03F3/08 , H03F3/50
摘要： A separation circuit part is used to separate an amplified signal path from a feedback signal path. An amplifier circuit part comprises a resistor-loaded common-source FET, a level adjustment diode and a source-follower circuit. The separation circuit part comprises a source-follower circuit, an output part of which is connected to a feedback circuit part comprising a resistor, thereby forming a feedback signal path to an input terminal of the amplifier circuit part. The signal separation circuit is used to separate the amplified signal path from the feedback signal path, thereby reducing the loads of the signal paths. In this way, the loads of the amplified signal and feedback signal paths are reduced. The delay time to be added in the separation circuit part is adjusted to cause the frequency range where the feedback changes from a negative feedback to a positive feedback to be coincident with the frequency range where the gain of the negative feedback amplifier part decreases, thereby realizing a wide band of gain.

3. 发明专利

AU2003244169A1 STATIC FLIP-FLOP CIRCUIT 未知
公开(公告)号：AU2003244169A1
公开(公告)日：2004-01-19
申请号：AU2003244169
申请日：2003-06-24
申请人： NEC CORP
发明人： AMAMIYA YASUSHI , SUZUKI YASUYUKI , WADA SHIGEKI
IPC分类号： H03K3/3562 , H03K3/012 , H03K3/289 , H03K3/286 , H03K3/356
摘要： Master circuit 1 and slave circuit 2 are designed so that the transistors constituting data-hold differential pairs are smaller in size than the transistors constituting data reading differential pairs. Further, the flip-flop circuit is adapted to operate in an operating speed range in which the currents through the data-hold differential pairs are lower than the currents through the data reading differential pairs, and the currents through the data-hold differential pairs are equal to or lower than the permissible current level of the transistors that constitute the data-hold differential pairs.

4. 发明专利

AU2003241941A8 Feedback amplifier having amplified signal path and feedback signal path separated 未知
公开(公告)号：AU2003241941A8
公开(公告)日：2003-12-19
申请号：AU2003241941
申请日：2003-05-30
申请人： NEC CORP , NEC COMPOUND SEMICONDUCTOR
发明人： WADA SHIGEKI , WATANABE YASUHIRO
IPC分类号： H03F1/48 , H03F3/08 , H03F3/50
摘要： A separation circuit part is used to separate an amplified signal path from a feedback signal path. An amplifier circuit part comprises a resistor-loaded common-source FET, a level adjustment diode and a source-follower circuit. The separation circuit part comprises a source-follower circuit, an output part of which is connected to a feedback circuit part comprising a resistor, thereby forming a feedback signal path to an input terminal of the amplifier circuit part. The signal separation circuit is used to separate the amplified signal path from the feedback signal path, thereby reducing the loads of the signal paths. In this way, the loads of the amplified signal and feedback signal paths are reduced. The delay time to be added in the separation circuit part is adjusted to cause the frequency range where the feedback changes from a negative feedback to a positive feedback to be coincident with the frequency range where the gain of the negative feedback amplifier part decreases, thereby realizing a wide band of gain.

5. 发明公开

EP1508966A4 FEEDBACK AMPLIFIER HAVING AMPLIFIED SIGNAL PATH AND FEEDBACK SIGNAL PATH SEPARATED 审中-公开
标题翻译：具有独立增强信号与反馈信号路径反馈放大器
公开(公告)号：EP1508966A4
公开(公告)日：2005-07-06
申请号：EP03730699
申请日：2003-05-30
申请人： NEC CORP , NEC COMPOUND SEMICONDUCTOR
发明人： WADA SHIGEKI , WATANABE YASUHIRO
IPC分类号： H03F1/48 , H03F3/08 , H03F3/50
CPC分类号： H03F3/082 , H03F3/505 , H03F2203/45612 , H03F2203/45652 , H03F2203/45722
摘要： A separation circuit part is used to separate an amplified signal path from a feedback signal path. An amplifier circuit part comprises a resistor-loaded common-source FET, a level adjustment diode and a source-follower circuit. The separation circuit part comprises a source-follower circuit, an output part of which is connected to a feedback circuit part comprising a resistor, thereby forming a feedback signal path to an input terminal of the amplifier circuit part. The signal separation circuit is used to separate the amplified signal path from the feedback signal path, thereby reducing the loads of the signal paths. In this way, the loads of the amplified signal and feedback signal paths are reduced. The delay time to be added in the separation circuit part is adjusted to cause the frequency range where the feedback changes from a negative feedback to a positive feedback to be coincident with the frequency range where the gain of the negative feedback amplifier part decreases, thereby realizing a wide band of gain.

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