公开(公告)号：US06476676B1

公开(公告)日：2002-11-05

申请号：US09889154

申请日：2001-07-12

申请人： Satoshi Tanaka ,  Shigetaka Takagi ,  Nobuo Fujii

发明人： Satoshi Tanaka ,  Shigetaka Takagi ,  Nobuo Fujii

IPC分类号： H03F345

CPC分类号： H03F3/45959 ,  H03F3/45291 ,  H03F3/45946 ,  H03F2200/372 ,  H03H11/0422 ,  H03H2011/0494

摘要： When an input signal to be amplified is very small and a large blocking signal having a high frequency is included in an input, it is necessary for a filter for mobile communication for removing thereof that a common-mode signal rejection ratio is large. Further, even in the case of an amplifier having a high gain, it is preferable that the common-mode rejection ratio is large in order to avoid saturation of the amplifier by noise. A common-mode rejecting characteristic is added to an input stage by making transconductance circuits of an input of an integrating circuit proposed by Nauta differential circits and connecting thereof in cross connection. Thereby, a filter as well as an amplifier improving the common-mode rejection ratio of a total, are realized by being applied to a CMOS process or a BiCMOS process.

摘要翻译： 当要被放大的输入信号非常小并且具有高频率的大阻塞信号被包括在输入中时，移动通信用滤波器需要去除共模信号抑制比大。 此外，即使在具有高增益的放大器的情况下，为了避免放大器的噪声饱和，优选地，共模抑制比较大。 通过使Nauta差分电路提出的积分电路的输入的跨导电路和其交叉连接而将共模抑制特性添加到输入级。 因此，通过应用于CMOS工艺或BiCMOS工艺来实现滤波器以及提高总共模抑制比的放大器。

公开(公告)号：US06664854B2

公开(公告)日：2003-12-16

申请号：US10232722

申请日：2002-09-03

申请人： Satoshi Tanaka ,  Shigetaka Takagi ,  Nobuo Fujii

发明人： Satoshi Tanaka ,  Shigetaka Takagi ,  Nobuo Fujii

IPC分类号： H03F345

CPC分类号： H03F3/45959 ,  H03F3/45291 ,  H03F3/45946 ,  H03F2200/372 ,  H03H11/0422 ,  H03H2011/0494

摘要： When an input signal to be amplified is very small and a large blocking signal having a high frequency is included in an input, it is necessary for a filter for mobile communication for removing thereof that a common-mode signal rejection ratio is large. Further, even in the case of an amplifier having a high gain, it is preferable that the common-mode rejection ratio is large in order to avoid saturation of the amplifier by noise. A common-mode rejecting characteristic is added to an input stage by making transconductance circuits of an input of an integrating circuit proposed by Nauta differential circuits and connecting thereof in cross connection. Thereby, a filter as well as an amplifier improving the common-mode rejection ratio of a total, are realized by being applied to a CMOS process or a BiCMOS process.

摘要翻译： 当要被放大的输入信号非常小并且具有高频率的大阻塞信号被包括在输入中时，移动通信用滤波器需要去除共模信号抑制比大。 此外，即使在具有高增益的放大器的情况下，为了避免放大器的噪声饱和，优选地，共模抑制比较大。 通过由Nauta差分电路提出的积分电路的输入的跨导电路和其交叉连接来将共模抑制特性添加到输入级。 因此，通过应用于CMOS工艺或BiCMOS工艺来实现滤波器以及提高总共模抑制比的放大器。

公开(公告)号：US20090102545A1

公开(公告)日：2009-04-23

申请号：US11917692

申请日：2006-04-25

申请人： Shigetaka Takagi ,  Nobuo Fujii ,  Takahide Sato ,  Kazuyuki Wada

发明人： Shigetaka Takagi ,  Nobuo Fujii ,  Takahide Sato ,  Kazuyuki Wada

IPC分类号： H04B1/10

CPC分类号： H04L25/085

摘要： An input signal (Vin) is divided into n (≧3) number of divided signals which are weighted by first weights (ki). The weighted divided signals are processed by n number of signal processing means 1 to n performing the same signal processing. The processed divided signals are weighted by second weights (li) and added to obtain an output signal (Vout). By selecting the first weights (ki) and the second weights (li), it is possible to eliminate noise or eliminate distortion.

摘要翻译： 输入信号（Vin）被划分成由第一权重（ki）加权的n（> = 3）个分割信号。 加权分频信号由n个信号处理装置1至n执行相同的信号处理。 经处理的分频信号由第二权重（li）加权并相加以获得输出信号（Vout）。 通过选择第一权重（ki）和第二权重（li），可以消除噪声或消除失真。

公开(公告)号：US06388520B2

公开(公告)日：2002-05-14

申请号：US09741953

申请日：2000-12-19

申请人： Kazuyuki Wada ,  Shigetaka Takagi ,  Nobuo Fujii

发明人： Kazuyuki Wada ,  Shigetaka Takagi ,  Nobuo Fujii

IPC分类号： H03F345

CPC分类号： H03F3/45192 ,  H03F1/301 ,  H03F3/45475 ,  H03F2200/513 ,  H03F2203/45028 ,  H03F2203/45138

摘要： A semiconductor integrated circuit comprises an amplifier circuit including a current output amplifier, a load resistor having one end connected to an output terminal of the current output amplifier and a voltage control circuit having an input terminal connected to the one end of the load resistor and an output terminal connected to an other end of the load resistor. The input terminal of the amplifier circuit serves as an input terminal of the current output amplifier, and the output terminals of the amplifier circuit serve as the individual ends of the load resistor.

摘要翻译： 半导体集成电路包括放大器电路，其包括电流输出放大器，负载电阻器，其一端连接到电流输出放大器的输出端;以及电压控制电路，其输入端连接到负载电阻的一端， 输出端子连接到负载电阻的另一端。 放大电路的输入端作为电流输出放大器的输入端，放大电路的输出端作为负载电阻的各端。

公开(公告)号：US5088288A

公开(公告)日：1992-02-18

申请号：US594631

申请日：1990-10-09

申请人： Yoshihiro Katagishi ,  Takeshi Miyazawa ,  Hiroyuki Kiyota ,  Nobuo Fujii

发明人： Yoshihiro Katagishi ,  Takeshi Miyazawa ,  Hiroyuki Kiyota ,  Nobuo Fujii

IPC分类号： F25B9/14 ,  F25B49/02

CPC分类号： F25B49/025 ,  F25B9/14 ,  F25B2309/001 ,  F25B2309/003

摘要： A refrigerator comprises a compressor including a first cylinder having an inner cylindrical surface, a piston reciprocating in the first cylinder, and a linear motor for having a.c. electric input power applied thereto to drive the piston; a cold finger including a second cylinder having an elongated inner cylindrical surface, a displacer reciprocating in the second cylinder, and a cold space and a hot space which are divided by the displacer; a temperature detector for detecting the temperature in the cold space; an electric input power decision unit for having a detection signal inputted from the temperature detector and for deciding the electric input power to be applied to the linear motor so that the electric input power grows greater and greater as the temperature in the cold space decreases; and a power source for providing the electric input power to the linear motor based on the output from the electric input power decision unit.

公开(公告)号：US06661289B2

公开(公告)日：2003-12-09

申请号：US10176063

申请日：2002-06-21

申请人： Takahide Sato ,  Nobuo Fujii ,  Sigetaka Takagi ,  Kazuyuki Wada

发明人： Takahide Sato ,  Nobuo Fujii ,  Sigetaka Takagi ,  Kazuyuki Wada

IPC分类号： H03F316

CPC分类号： G05F1/561 ,  G05F3/242

摘要： A voltage-to-current conversion circuit composed of MOSFETs of the same polarity and an OTA with Rail-to-Rail with a simple configuration that uses the same have been disclosed. The voltage-to-current conversion circuit comprises a first MOSFET, to which a fixed drain-source voltage is applied all the time, and which generates a first current signal for an input voltage, a second MOSFET, which has the same polarity as that of the first MOSFET, to which the fixed drain-source voltage is applied all the time, and which generates a second current signal complementary to the first current signal for the input voltage, and a difference current operation circuit that performs the operation of subtraction between the first current signal and the second current signal, thereby an output current is generated in accordance with the input voltage.

摘要翻译： 已经公开了由具有相同极性的MOSFET组成的电压 - 电流转换电路和具有使用它们的简单配置的轨至轨的OTA。 电压 - 电流转换电路包括第一MOSFET，一直施加固定的漏极 - 源极电压，并且其产生用于输入电压的第一电流信号，第二MOSFET具有与之相同极性的第二MOSFET 所述第一MOSFET的固定漏极 - 源极电压一直被施加到所述第一MOSFET，并且产生与所述输入电压的所述第一电流信号互补的第二电流信号;以及差动电流运算电路， 第一电流信号和第二电流信号，从而根据输入电压产生输出电流。

公开(公告)号：US5351490A

公开(公告)日：1994-10-04

申请号：US10273

申请日：1993-01-28

申请人： Tatsuru Ohishi ,  Kazuki Niitsu ,  Hiroyuki Kiyota ,  Nobuo Fujii ,  Yoshihiro Katagishi ,  Takeshi Miyazawa

发明人： Tatsuru Ohishi ,  Kazuki Niitsu ,  Hiroyuki Kiyota ,  Nobuo Fujii ,  Yoshihiro Katagishi ,  Takeshi Miyazawa

IPC分类号： F04B35/04 ,  F25B9/14

CPC分类号： F25B9/14 ,  F04B35/045 ,  F25B2309/001

摘要： A cryogenic refrigerator comprises a compressor including a compressor housing within which a cylinder is mounted, and a piston reciprocal within the cylinder, and a cold finger including a low temperature cylinder within which a displacer is reciprocable, and a regenerater mounted within the displacer. A plurality of flat piston suspension springs include a plurality of spiral slits to provide a plurality of spiral arms deflectable as the piston is reciprocated within the compressor cylinder. A plurality of annular inner retainers are secured to the piston and adapted to sandwich the inner peripheral edges of the piston suspension springs. A plurality of annular outer retainers are secured to the compressor housing and include a plurality of projections extending inwardly from the outer ends of the spiral slits to sandwich the outer peripheral edges of the flat piston suspension springs.

摘要翻译： 低温冰箱包括压缩机，其包括压缩机壳体，其中安装有气缸，以及在所述气缸内往复运动的活塞，以及包括置换器可往复运动的低温气缸的冷指，以及安装在所述置换器内的再生器。 多个扁平活塞悬架弹簧包括多个螺旋狭缝，以在活塞在压缩机气缸内往复运动时提供可偏转的多个螺旋臂。 多个环形内保持器固定到活塞上并且适于夹住活塞悬架弹簧的内周边缘。 多个环形外保持器固定到压缩机壳体并且包括从螺旋狭缝的外端向内延伸的多个突起，以夹住平面活塞悬架弹簧的外周边缘。

公开(公告)号：US5113662A

公开(公告)日：1992-05-19

申请号：US664817

申请日：1991-03-05

申请人： Nobuo Fujii ,  Hiroyuki Kiyota ,  Yoshihiro Katagishi ,  Takeshi Miyazawa

发明人： Nobuo Fujii ,  Hiroyuki Kiyota ,  Yoshihiro Katagishi ,  Takeshi Miyazawa

IPC分类号： F04B35/04 ,  F25B9/14

CPC分类号： F04B35/045 ,  F25B9/14 ,  F25B2309/001 ,  F25B2309/003 ,  F25B2500/13

摘要： A refrigerator comprising a first cylinder and a second cylinder which are coaxially arranged, a first movable coil and a second movable coil which are oppositely arranged in a magnetic flux produced by a magnet, and which can be reciprocated by applying an a.c. current thereto; a first piston which is coupled to the first movable coil, and which can reciprocate in the first cylinder, a second piston which is coupled to the second movable coil, and which can reciprocate in the second cylinder; a compression space which is defined by the first cylinder, the second cylinder, the first piston and the second piston, a cold cylinder, a displacer which divides the inside of the cold cylinder into a cold space and a hot space, and which can slidably reciprocate in the cold cylinder, a regenerator which is arranged in the displacer; a partition wall which is arranged between the first cylinder and the second cylinder to divide the compression space into a first compression space and a second compression space, and communicating means for communicating between the first compression space and the second compression space.

摘要翻译： 一种冰箱，包括同轴布置的第一气缸和第二气缸，第一可动线圈和第二可动线圈，其相对地布置在由磁体产生的磁通中，并且可以通过施加一个交流电而进行往复运动。 当前; 第一活塞，其联接到所述第一可动线圈并且能够在所述第一气缸中往复运动;第二活塞，其联接到所述第二可动线圈，并且能够在所述第二气缸中往复运动; 由第一气缸，第二气缸，第一活塞和第二活塞限定的压缩空间，冷气缸，将冷气缸内部分成冷空气和热空间的置换器，其可滑动地 在冷缸中往复运动，设置在置换器中的再生器; 分隔壁，布置在第一气缸和第二气缸之间，以将压缩空间分成第一压缩空间和第二压缩空间;以及连通装置，用于在第一压缩空间和第二压缩空间之间连通。

公开(公告)号：US5578862A

公开(公告)日：1996-11-26

申请号：US322374

申请日：1994-10-13

申请人： Nobuo Fujii ,  Yosuke Mizukawa ,  Yasuo Mitsuhashi

发明人： Nobuo Fujii ,  Yosuke Mizukawa ,  Yasuo Mitsuhashi

IPC分类号： H01L27/02 ,  H01L29/00

CPC分类号： H01L27/0248

摘要： By reverse biasing the PN junction formed around a semiconductor element, the semiconductor element is isolated from other elements. The PN junction around the semiconductor element is a junction between a layer surrounding the semiconductor element and a layer disposed outside the layer. Jointly with the layer constituting the semiconductor, the layer surrounding the semiconductor element forms a parasitic diode. The potential of the layer on the semiconductor element to be connected to the layer surrounding the semiconductor element is detected, and based on this potential, the voltage to be applied to the parasitic diode is controlled so as to be constant. When the voltage to be applied to the parasitic diode is lower than a threshold, the parasitic diode will be in a cutoff state.

摘要翻译： 通过反向偏置形成在半导体元件周围的PN结，半导体元件与其它元件隔离。 半导体元件周围的PN结是围绕半导体元件的层与设置在层之外的层之间的结。 与构成半导体的层共同地，围绕半导体元件的层形成寄生二极管。 检测半导体元件上连接到半导体元件周围的层的电位，并且基于该电位，施加到寄生二极管的电压被控制为恒定。 当施加到寄生二极管的电压低于阈值时，寄生二极管将处于截止状态。