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1. 发明授权

US06201441B1 Semiconductor circuit 失效
标题翻译：半导体电路
公开(公告)号：US06201441B1
公开(公告)日：2001-03-13
申请号：US09423518
申请日：1999-11-10
申请人： Noriharu Suematsu , Shigeru Sugiyama , Kensuke Nakajima , Yoshitada Iyama , Fumimasa Kitabayashi
发明人： Noriharu Suematsu , Shigeru Sugiyama , Kensuke Nakajima , Yoshitada Iyama , Fumimasa Kitabayashi
IPC分类号： H03F114
CPC分类号： H03F3/72 , H03F3/19 , H03F2203/7239 , H03G1/0088
摘要： An operational command signal is output to one of an amplifier or a variable damper depending on the signal level of a high frequency signal.
摘要翻译：操作指令信号根据高频信号的信号电平输出到放大器或可变阻尼器中的一个。

2. 发明授权

US6094108A Unbalance-to-balance converter utilizing a transistor 失效
标题翻译：利用晶体管的不平衡平衡转换器
公开(公告)号：US6094108A
公开(公告)日：2000-07-25
申请号：US153329
申请日：1998-09-15
申请人： Noriharu Suematsu , Shigeru Sugiyama , Masayoshi Ono , Yoshitada Iyama , Fumimasa Kitabayashi
发明人： Noriharu Suematsu , Shigeru Sugiyama , Masayoshi Ono , Yoshitada Iyama , Fumimasa Kitabayashi
IPC分类号： H03D7/14 , H03H11/32
CPC分类号： H03H11/32
摘要： An unbalance-to-balance converter includes an FET and a balanced output adjusting capacitor connected between the source terminal of the FET and an earth conductor. The balanced output adjusting capacitor has a capacitance value equal to a capacitance difference Cpd-Cps between a drain side parasitic capacitance Cpd and a source side parasitic capacitance Cps. This makes it possible to solve a problem involved in a conventional unbalance-to-balance converter in that when the drain side parasitic capacitance Cpd differs from the source side parasitic capacitance Cps, a pair of balanced signals output from the drain terminal and source terminal do not have the same amplitude and are not in complete opposition.
摘要翻译：不平衡平衡转换器包括FET和连接在FET的源极端子与接地导体之间的平衡输出调整电容器。平衡输出调整电容器的电容值等于漏极侧寄生电容Cpd与源极侧寄生电容Cps之间的电容差Cpd-Cps。这使得可以解决传统的不平衡转换器中涉及的问题，因为当漏极侧寄生电容Cpd与源极侧寄生电容Cps不同时，从漏极端子和源极端子输出的一对平衡信号没有相同的幅度，并没有完全相反。

3. 发明申请

US20060145737A1 Current-reuse-type frequency multiplier 审中-公开
标题翻译：电流再利用型倍频器
公开(公告)号：US20060145737A1
公开(公告)日：2006-07-06
申请号：US11300281
申请日：2005-12-15
申请人： Kazuya Yamamoto , Fumimasa Kitabayashi
发明人： Kazuya Yamamoto , Fumimasa Kitabayashi
IPC分类号： H03B19/00
CPC分类号： H03B19/14
摘要： A first differential input terminal is connected to one differential output terminal of a VCO, and a second differential input terminal is connected to the other differential output terminal of the VCO. RF signals in a complementary relationship with each other that are output from the VCO are input to the first and second differential input terminals as input signals. The gate of a first N-channel MOS transistor is connected to the first differential input terminal, and the gate of a second N-channel MOS transistors is connected to the second differential input terminal. The sources of the first and second N-channel MOS transistors are connected to a ground potential. The drains of the first and second N-channel MOS transistors are commonly connected to a node.
摘要翻译：第一差分输入端连接到VCO的一个差分输出端，第二差分输入端连接到VCO的另一差分输出端。从VCO输出的彼此互补关系的RF信号被输入到第一和第二差分输入端作为输入信号。第一N沟道MOS晶体管的栅极连接到第一差分输入端，第二N沟道MOS晶体管的栅极连接到第二差分输入端。第一和第二N沟道MOS晶体管的源极连接到地电位。第一和第二N沟道MOS晶体管的漏极通常连接到节点。

4. 发明授权

US06812794B1 Multistage amplifier 失效
标题翻译：多级放大器
公开(公告)号：US06812794B1
公开(公告)日：2004-11-02
申请号：US09936212
申请日：2001-09-10
申请人： Kazutomi Mori , Shintarou Shinjo , Fumimasa Kitabayashi , Yukio Ikeda
发明人： Kazutomi Mori , Shintarou Shinjo , Fumimasa Kitabayashi , Yukio Ikeda
IPC分类号： H03F304
CPC分类号： H03F3/602 , H03F1/565 , H03F2200/318 , H03H7/38
摘要： An inter-stage matching circuit 26 comprises a one-stage high pass filter type matching unit 28 and a one-stage low pass filter type matching unit 29 serially connected with each other.

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