公开(公告)号：US20080064359A1

公开(公告)日：2008-03-13

申请号：US11928766

申请日：2007-10-30

申请人： Takafumi Yamaji ,  Rui Ito ,  Tetsuro Itakura

发明人： Takafumi Yamaji ,  Rui Ito ,  Tetsuro Itakura

IPC分类号： H04Q7/20 ,  H03F3/45 ,  H03K9/00 ,  H04B1/02 ,  H04B1/10 ,  H04L27/00

CPC分类号： H03F3/193 ,  H03F3/45085 ,  H03F3/45183 ,  H03F2203/45352

摘要： An amplifier includes an amplification unit which amplify a first difference between first and second input signals, a second difference between second and third input signals and a third difference between third and first input signals by a differential mode gain, and amplify an average of the first, second and third input signal by a common mode gain, for outputting a first output signal corresponding to a sum of the amplified first difference and the amplified average, a second output signal corresponding to a sum of the amplified second difference and the amplified average, and a third output signal corresponding to a sum of the amplified third difference and amplified average; first, second; and a reduction circuit which reduces the common mode gain less than the differential mode gain.

摘要翻译： 放大器包括放大单元，其放大第一和第二输入信号之间的第一差值，第二和第三输入信号之间的第二差值以及第三和第一输入信号之间的差分模式增益的第三差值，并放大第一和第二输入信号的平均值 通过共模增益输出第二和第三输入信号，用于输出对应于放大的第一差和放大的平均的和的第一输出信号，对应于放大的第二差和放大的平均之和的第二输出信号， 以及对应于放大的第三差和放大的平均值之和的第三输出信号; 第一秒; 以及减小电路，其减小小于差分模式增益的共模增益。

公开(公告)号：US07236118B2

公开(公告)日：2007-06-26

申请号：US11409569

申请日：2006-04-24

申请人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

发明人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

IPC分类号： H03M1/38

CPC分类号： H03M1/123 ,  H03M1/0695 ,  H03M1/1205 ,  H03M1/44

摘要： A multiple input AD conversion apparatus includes a first unit AD converter including a plurality of first conversion stages connected in cascade to convert a first analog input signal to a first digital output signal, a second unit AD converter including a plurality of second conversion stages connected in cascade to convert a second analog input signal to a second digital output signal, and an operational amplifier shared between the first conversion stage and the second conversion stage in a time sharing.

公开(公告)号：US07190239B2

公开(公告)日：2007-03-13

申请号：US11204166

申请日：2005-08-16

申请人： Ryuichi Fujimoto ,  Tetsuro Itakura

发明人： Ryuichi Fujimoto ,  Tetsuro Itakura

IPC分类号： H03B1/00

CPC分类号： H03B5/1841 ,  H03B5/1209 ,  H03B5/1215 ,  H03B5/1225 ,  H03B5/1228 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1256 ,  H03B5/1271 ,  H03B5/1278 ,  H03B5/1296 ,  H03F3/45089 ,  H03F3/45183 ,  H03F3/45188 ,  H03F3/72 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45318 ,  H03F2203/45362 ,  H03F2203/45386 ,  H03F2203/45591 ,  H03F2203/45638 ,  H03G1/0029 ,  H03H11/48 ,  H03H11/485 ,  H03J2200/10

摘要： An amplifier comprises an amplifier circuit which comprises a first inductor as an impedance element for degeneration, and a control circuit which has a second inductor electro-magnetically connected to the first inductor, and changes a control current flowing through the second inductor to change an inductance value of the first inductor, thereby changing amplification characteristics of the amplifier circuit.

摘要翻译： 放大器包括放大器电路，其包括作为退化的阻抗元件的第一电感器，以及具有与第一电感器电磁连接的第二电感器的控制电路，并且改变流过第二电感器的控制电流以改变电感 值，从而改变放大器电路的放大特性。

公开(公告)号：US20060022722A1

公开(公告)日：2006-02-02

申请号：US11235264

申请日：2005-09-27

申请人： Toshiyuki Umeda ,  Shoji Otaka ,  Tetsuro Itakura

发明人： Toshiyuki Umeda ,  Shoji Otaka ,  Tetsuro Itakura

IPC分类号： H03B19/00

CPC分类号： H03D7/1441 ,  H03D7/1433 ,  H03D7/1458 ,  H03D2200/0033 ,  H03D2200/0043 ,  H03D2200/0084

摘要： A frequency converter converts a first current signal having a first frequency into a second current signal having a second frequency different from the first frequency. The frequency converter includes an adder and a switching circuit. The adder adds the first current signal and a reference current signal to output a third current signal. The switching circuit passes only that portion of the third current signal larger in magnitude than a threshold current to output the second current signal.

摘要翻译： 变频器将具有第一频率的第一电流信号转换成具有与第一频率不同的第二频率的第二电流信号。 变频器包括加法器和开关电路。 加法器将第一电流信号和参考电流信号相加以输出第三电流信号。 开关电路仅通过第三电流信号的大于阈值电流的部分，以输出第二电流信号。

公开(公告)号：US06480178B1

公开(公告)日：2002-11-12

申请号：US09128414

申请日：1998-08-04

申请人： Tetsuro Itakura ,  Takeshi Shima

发明人： Tetsuro Itakura ,  Takeshi Shima

IPC分类号： G09G336

CPC分类号： H03F3/303 ,  G09G3/3688 ,  H03F3/3023

摘要： An amplifier circuit comprising an input stage and an output stage which are cascade-connected between a signal input terminal to which an input signal is input and a signal output terminal to which a capacitive load is connected and which includes at least an input amplification stage and an output amplification stage, and a resistor circuit including at least a resistor inserted between the output terminal of the output amplification stage and the signal output terminal.

摘要翻译： 一种放大器电路，包括输入级和输出级，级联连接在输入信号输入的信号输入端与连接有电容性负载的信号输出端之间，并且至少包括输入放大级和 输出放大级，以及至少包括插入在输出放大级的输出端子与信号输出端子之间的电阻器的电阻电路。

公开(公告)号：US06456270B1

公开(公告)日：2002-09-24

申请号：US09512826

申请日：2000-02-25

申请人： Tetsuro Itakura

发明人： Tetsuro Itakura

IPC分类号： G09G336

CPC分类号： G09G3/3688 ,  G09G2310/0291 ,  G09G2320/0233 ,  H01L27/0207

摘要： An integrated circuit device has a plurality of amplifier circuits integrated within a chip, and includes current mirror circuits constituted by a plurality of diode-connected input-side transistors for receiving a current for setting a bias current, and a plurality of output transistors for respectively supplying output currents corresponding to the received current, as bias currents, to the amplifier circuits. The input-side transistors are distributed to the plurality of amplifier circuits.

摘要翻译： 集成电路器件具有集成在芯片内的多个放大器电路，并且包括由用于接收用于设置偏置电流的电流的多个二极管连接的输入侧晶体管和分别用于分别用于设置偏置电流的多个输出晶体管的电流镜电路 将与接收电流相对应的输出电流作为偏置电流提供给放大器电路。 输入侧晶体管分配到多个放大器电路。

公开(公告)号：US5162670A

公开(公告)日：1992-11-10

申请号：US636427

申请日：1990-12-28

申请人： Tetsuro Itakura ,  Takeshi Shima

发明人： Tetsuro Itakura ,  Takeshi Shima

IPC分类号： G09G3/36 ,  G11C27/02

CPC分类号： G11C27/026 ,  G11C27/024 ,  G09G2310/0289 ,  G09G3/3688

摘要： A sample-and-hold circuit includes a first switch element which is opened or closed in accordance with a first control signal so as to selectively connect an input signal terminal for receiving an input signal to an internal terminal, a non-linear element for connecting the internal terminal to an output terminal, a potential holding circuit connected between the output terminal and ground, and a second switch element or a current source circuit which is controlled by a second control signal so as to selectively connect the output terminal to ground.

公开(公告)号：US08835830B2

公开(公告)日：2014-09-16

申请号：US13308646

申请日：2011-12-01

申请人： Hiroshi Uemura ,  Ippei Akita ,  Tetsuro Itakura ,  Hideto Furuyama

发明人： Hiroshi Uemura ,  Ippei Akita ,  Tetsuro Itakura ,  Hideto Furuyama

IPC分类号： H01J40/12 ,  H04B10/25 ,  H04B10/69

CPC分类号： H04B10/69 ,  H04B10/25

摘要： According to one embodiment, a circuit comprises a first resistor configured to have one end to which a first voltage is input and the other end which outputs a second voltage and a first amplifier configured to have an inverting input connected to the other end of the first resistor and a noninverting input to which a third voltage is input. The circuit further comprises a first capacitor configured to have one end to which an output of the first amplifier is input and the other end to which the other end of the first resistor is connected. An output of the first amplifier or an output of a second amplifier connected to the other end of the first resistor is a fourth voltage. In the circuit, the first resistor and a mirror capacitance composed of the first capacitor and the first amplifier constitute a low-pass filter.

摘要翻译： 根据一个实施例，电路包括第一电阻器，其被配置为具有输入第一电压的一端和输出第二电压的另一端和配置成具有连接到第一电压的另一端的反相输入的第一放大器 电阻器和输入第三电压的同相输入端。 电路还包括第一电容器，其被配置为具有输入第一放大器的输出的一端和第一电阻器的另一端连接到的另一端。 连接到第一电阻器的另一端的第一放大器的输出或第二放大器的输出是第四电压。 在该电路中，由第一电容器和第一放大器组成的第一电阻器和反射镜电容器构成低通滤波器。

公开(公告)号：US08058878B2

公开(公告)日：2011-11-15

申请号：US12406534

申请日：2009-03-18

申请人： Daisuke Kurose ,  Hiroki Sakurai ,  Tetsuro Itakura ,  Yoshinao Tatebayashi ,  Nobuo Shibuya ,  Toshiyuki Umeda

发明人： Daisuke Kurose ,  Hiroki Sakurai ,  Tetsuro Itakura ,  Yoshinao Tatebayashi ,  Nobuo Shibuya ,  Toshiyuki Umeda

IPC分类号： G01N27/416 ,  H02J7/04 ,  G01R31/36

CPC分类号： G01R31/3658 ,  B60L3/0046 ,  B60L11/1864 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  G01R31/362 ,  H01M10/425 ,  H01M10/482 ,  H01M10/486 ,  Y02T10/7005 ,  Y02T10/7061 ,  Y02T90/16

摘要： There is an apparatus includes a voltage acquiring unit which acquires an inter-terminal voltage of the battery cell; a battery information acquiring circuit which acquires battery information of the battery cell with the acquired voltage being supplied as a power supply voltage and; a transformer configured to have a primary winding and a secondary winding, the primary winding being connected to a common wire; a communication circuit which transmits a signal of the battery information to a management unit, supplied with the acquired voltage as a power supply voltage; a rectification circuit which rectifies a signal of a predetermined frequency from the management unit to generate a DC voltage; and a control circuit which controls the supply of the power supply voltages to the battery information acquiring circuit and the communication circuit, the control circuit being supplied with the DC voltage as a power supply voltage.

摘要翻译： 存在一种装置，包括获取电池单元的端子间电压的电压获取单元; 电池信息获取电路，其获取所获取的电压作为电源电压的电池信息; 被配置为具有初级绕组和次级绕组的变压器，所述初级绕组连接到公共线; 将电池信息的信号发送到管理单元的通信电路，提供所获取的电压作为电源电压; 整流电路，其从所述管理单元整流预定频率的信号，以产生DC电压; 以及控制电路，其控制对电池信息获取电路和通信电路的电源电压的供给，所述控制电路被提供有直流电压作为电源电压。

公开(公告)号：US20110235367A1

公开(公告)日：2011-09-29

申请号：US12878271

申请日：2010-09-09

申请人： Takeshi Ueno ,  Tetsuro Itakura

发明人： Takeshi Ueno ,  Tetsuro Itakura

IPC分类号： H02M3/24

CPC分类号： H02M3/1563

摘要： A DC to DC converter includes an input terminal, an output terminal, first and second switches, an inductor, a smoothing unit, a first impedance element, a first resistor element, an operational amplifier and a control unit. The first switch is connected to the input terminal. The second switch is connected to the first switch and a ground terminal. The inductor is connected to the first switch and the output terminal. The smoothing unit is connected to the inductor and the ground terminal. The first impedance element is connected to the smoothing unit. The first resistor element is connected in series with the first impedance element. The operational amplifier is connected to the first impedance element. Reference voltage is added to the operational amplifier. The control unit controls the first and second switches according to a control signal outputted from the operational amplifier.

摘要翻译： DC-DC转换器包括输入端子，输出端子，第一和第二开关，电感器，平滑单元，第一阻抗元件，第一电阻元件，运算放大器和控制单元。 第一个开关连接到输入端。 第二开关连接到第一开关和接地端子。 电感器连接到第一开关和输出端子。 平滑单元连接到电感器和接地端子。 第一阻抗元件连接到平滑单元。 第一电阻元件与第一阻抗元件串联连接。 运算放大器连接到第一阻抗元件。 参考电压加到运算放大器上。 控制单元根据从运算放大器输出的控制信号来控制第一和第二开关。