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71. 发明授权

US5650714A Orthogonal signal generation system 失效
标题翻译：正交信号发生系统
公开(公告)号：US5650714A
公开(公告)日：1997-07-22
申请号：US303815
申请日：1994-09-09
申请人： Shoji Otaka , Hiroshi Tanimoto
发明人： Shoji Otaka , Hiroshi Tanimoto
IPC分类号： H03H7/18 , G05F3/22 , H03D7/16 , H03H11/22 , H04L27/20 , H04L27/36 , G05F3/00
CPC分类号： H03D7/165 , G05F3/22 , H03H11/22 , H04L27/20
摘要： A local signal of preset frequency is supplied to an input terminal of a signal input section. The local signal is supplied to a control input terminal of a variable current source, a current corresponding to the local signal is output from the variable current source, and the current is supplied to a phase shifting section. The phase shifting section includes an integrator constructed by a capacitor and a resistor connected in series and a differentiator constructed by a resistor and a capacitor connected in parallel. As parallely connecting the phase shifting circuit with a linear element of which the signal input section consists, the phase shifting section outputs first and second output signals which has the same frequency as the local signal and whose phases are different from each other by 90.degree.. The output signals of the phase shifting section are output to the next stage via an orthogonal signal output section constructed by current source and transistors.
摘要翻译：预设频率的本地信号被提供给信号输入部分的输入端。本地信号被提供给可变电流源的控制输入端，从可变电流源输出对应于本地信号的电流，并将电流提供给相移部分。相移部分包括由串联的电容器和电阻器构成的积分器，以及由电阻器和并联连接的电容器构成的微分器。由于相移电路与信号输入部分所构成的线性元件平行连接，所以相移部输出与本地信号相同频率的第一和第二输出信号，其相位彼此相差90度。相移部分的输出信号通过由电流源和晶体管构成的正交信号输出部分输出到下一级。

72. 发明授权

US09343225B2 Power receiving device, power transmitting device and control device 有权
标题翻译：受电装置，发电装置及控制装置
公开(公告)号：US09343225B2
公开(公告)日：2016-05-17
申请号：US13717477
申请日：2012-12-17
申请人： Kohei Onizuka , Shoji Otaka , Hiroaki Ishihara , Fumi Moritsuka
发明人： Kohei Onizuka , Shoji Otaka , Hiroaki Ishihara , Fumi Moritsuka
IPC分类号： H01F27/00 , H01F38/14 , H02J5/00 , H02J7/02
CPC分类号： H01F38/14 , H02J5/005 , H02J7/025 , H02J50/12
摘要： There provided a power receiving device connectable with a first load circuit operating according to AC power from a power transmitting device in which the power receiver receives the AC power from the power transmitting device via magnetic coupling, the impedance adjuster is capable of converting at least one of voltage and current of the AC power received at the power receiver, the controller controls increase in output voltage of the power transmitting device, the AC power is supplied to the first load circuit via the impedance adjuster when the first load circuit is connected to the power receiving device, and the controller controls the impedance adjuster such that an input impedance of the impedance adjuster is lower than an input impedance of the first load circuit during at least a part of a time period where the output voltage of the power transmitting device is increased.
摘要翻译：提供了一种电力接收装置，可与根据来自功率传输装置的AC电力工作的第一负载电路连接，其中电力接收器通过磁耦合从发送装置接收AC电力，阻抗调节器能够转换至少一个在电力接收器处接收的AC电力的电压和电流，控制器控制电力传输装置的输出电压的增加，当第一负载电路连接到第一负载电路时，AC电力经由阻抗调节器被提供给第一负载电路电力接收装置，并且所述控制器控制所述阻抗调节器，使得所述阻抗调节器的输入阻抗在所述电力发送装置的输出电压为的时间段的至少一部分期间低于所述第一负载电路的输入阻抗增加。

73. 发明申请

US20120034875A1 RADIO APPARATUS 有权
标题翻译：无线电设备
公开(公告)号：US20120034875A1
公开(公告)日：2012-02-09
申请号：US13052371
申请日：2011-03-21
申请人： Fumi MORITSUKA , Shoji Otaka , Masahiro Hosoya , Hiroaki Ishihara , Tsuyoshi Kogawa
发明人： Fumi MORITSUKA , Shoji Otaka , Masahiro Hosoya , Hiroaki Ishihara , Tsuyoshi Kogawa
IPC分类号： H04B1/10 , H04B1/00
CPC分类号： H03G3/3052 , H03F3/195 , H03F3/45475 , H03F3/45977 , H03F2200/321 , H03F2200/451 , H03F2203/45138 , H03F2203/45424 , H03F2203/45438 , H03F2203/45446 , H03F2203/45522
摘要： A radio apparatus capable of correcting a direct current offset with high accuracy in a short time is provided. A radio apparatus according to an embodiment includes a first amplifier amplifying a signal inputted to an input terminal with amplification gain determined by a variable resistor to generate a first amplified signal, and a second amplifier amplifying the first amplified signal to generate a second amplified signal. Further, the radio apparatus includes a first correcting unit correcting a direct current offset of the first amplifier, and a second correcting unit correcting a direct current offset of the second amplifier. The radio apparatus also includes a reference voltage source or reference current source supplying a reference voltage or reference current for referring a direct current offset to the first amplifier and the second amplifier, again controller controlling the amplification gain of the first amplifier; and a correction controller controlling the gain controller to set the amplification gain to maximum and controlling the first and second correcting units to perform correction of the second correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the second amplifier, and thereafter perform correction of the first correcting unit based on the second amplified signal obtained by inputting the reference voltage or the reference current to an input terminal of the first amplifier.
摘要翻译：提供能够在短时间内以高精度校正直流偏移的无线电装置。根据实施例的无线电设备包括：放大输入到输入端的信号的第一放大器，其具有由可变电阻器确定的放大增益以产生第一放大信号;以及第二放大器，放大第一放大信号以产生第二放大信号。此外，无线电设备包括校正第一放大器的直流偏移的第一校正单元和校正第二放大器的直流偏移的第二校正单元。无线电设备还包括参考电压源或参考电流源，其提供用于将直流偏移引用到第一放大器和第二放大器的参考电压或参考电流，再次控制器控制第一放大器的放大增益; 以及校正控制器，控制增益控制器将放大增益设定为最大，并且基于通过将参考电压或参考电流输入到输入端获得的第二放大信号来控制第一和第二校正单元执行第二校正单元的校正终端，然后基于通过将参考电压或参考电流输入到第一放大器的输入端而获得的第二放大信号来执行第一校正单元的校正。

74. 发明申请

US20100225397A1 AMPLIFIER AND RADIO 失效
标题翻译：放大器和无线电
公开(公告)号：US20100225397A1
公开(公告)日：2010-09-09
申请号：US12558807
申请日：2009-09-14
申请人： Kohei Onizuka , Masahiro Hosoya , Hiroaki Ishihara , Shoji Otaka , Osamu Watanabe
发明人： Kohei Onizuka , Masahiro Hosoya , Hiroaki Ishihara , Shoji Otaka , Osamu Watanabe
IPC分类号： H03F3/26
CPC分类号： H03F3/602 , H03F3/26 , H03F2200/537 , H03F2200/541 , H03F2200/543
摘要： An amplifier includes: a substrate; first to fourth amplifying units arranged on the substrate and each having first and second terminals, and each amplifying first and second signals to generate first and second amplified signals; a first inductive line arranged on the substrate, connecting the first terminal of the first amplifying unit and the first terminal of the second amplifying unit, and having a linear portion and a bending portion; a second inductive line arranged on the substrate, connecting the second terminal of the second amplifying unit and the first terminal of the third amplifying unit, and having a linear portion and a bending portion; a third inductive line arranged on the substrate, connecting the second terminal of the third amplifying unit and the first terminal of the fourth amplifying unit, and having a linear portion and a bending portion; a fourth inductive line arranged on the substrate, connecting the second terminal of the fourth amplifying unit and the second terminal of the first amplifying unit, and having a linear portion and a bending portion; and a fifth inductive line which establishes magnetic field coupling with the first to fourth inductive lines, and has third and fourth terminals, combines the plurality of the first amplified signals amplified to output the first combined signal from the third terminal, and combines the plurality of the second amplified signals to output the second combined signal from the fourth terminal.
摘要翻译：放大器包括：基板; 布置在基板上的第一至第四放大单元，每个具有第一和第二端子，并且每个放大第一和第二信号以产生第一和第二放大信号; 布置在所述基板上的第一感应线，连接所述第一放大单元的第一端子和所述第二放大单元的所述第一端子，并且具有直线部分和弯曲部分; 布置在基板上的第二感应线，连接第二放大单元的第二端子和第三放大单元的第一端子，并具有直线部分和弯曲部分; 布置在基板上的第三感应线，连接第三放大单元的第二端子和第四放大单元的第一端子，并具有直线部分和弯曲部分; 布置在基板上的第四感应线，连接第四放大单元的第二端子和第一放大单元的第二端子，并具有直线部分和弯曲部分; 以及第五感应线，其与第一至第四感应线建立磁场耦合，并且具有第三和第四端子，将被放大的多个第一放大信号组合以输出来自第三端子的第一组合信号，并将多个第二放大信号以从第四终端输出第二组合信号。

75. 发明授权

US07663420B2 MOS resistance controlling device and MOS attenuator 失效
标题翻译： MOS电阻控制装置和MOS衰减器
公开(公告)号：US07663420B2
公开(公告)日：2010-02-16
申请号：US11936214
申请日：2007-11-07
申请人： Yuta Araki , Shoji Otaka , Toru Hashimoto
发明人： Yuta Araki , Shoji Otaka , Toru Hashimoto
IPC分类号： H03L5/00
CPC分类号： H01L27/0802 , H03H11/245
摘要： A MOS resistance controlling device includes: a plurality of MOS transistors having a first MOS transistor to N-th (the integer N is larger than 1) MOS transistor being serially connected, the source of the first MOS transistor being set to a first reference potential, the drain the N-th MOS transistor being set to a second reference potential, and the drain of an I-th MOS transistor being connected to the source of an I+1-th MOS transistor, where I is an integer from 1 to N−1; a current source which is electrically disposed at connection node between the drain of the N-th MOS transistors and the second reference potential; and an operational amplifier having a first input terminal being supplied with a third reference potential, a second input terminal connected with the connection node and an output terminal being connected with gates of the MOS transistors.
摘要翻译： MOS电阻控制装置包括：多个MOS晶体管，其具有串联连接的第一MOS晶体管至第N（整数N大于1）的MOS晶体管，第一MOS晶体管的源极被设置为第一参考电位，第N个MOS晶体管的漏极被设置为第二参考电位，并且第一MOS晶体管的漏极连接到第I + 1个MOS晶体管的源极，其中I是从1到 N-1; 电流源，电流配置在第N个MOS晶体管的漏极与第2基准电位之间的连接节点处; 以及具有被提供有第三参考电位的第一输入端的运算放大器，与所述连接节点连接的第二输入端和与所述MOS晶体管的栅极连接的输出端。

76. 发明申请

US20090302958A1 DIGITALLY CONTROLLED OSCILLATOR AND PHASE LOCKED LOOP CIRCUIT USING THE DIGITALLY CONTROLLED OSCILLATOR 审中-公开
标题翻译：使用数字控制振荡器的数字控制振荡器和相位锁定环路
公开(公告)号：US20090302958A1
公开(公告)日：2009-12-10
申请号：US12408910
申请日：2009-03-23
申请人： Hiroki Sakurai , Osamu Watanabe , Shoji Otaka , Ryoichi Tachibana
发明人： Hiroki Sakurai , Osamu Watanabe , Shoji Otaka , Ryoichi Tachibana
IPC分类号： H03L7/099
CPC分类号： H03L7/0991 , H03B5/1212 , H03B5/1228 , H03B5/1253 , H03B5/1265 , H03L7/087 , H03L7/18 , H03L2207/06
摘要： A digitally controlled oscillator includes a differential inductor including a positive terminal which outputs a positive-phase oscillation signal, a negative terminal which outputs a negative-phase oscillation signal, and a center tap, and including a first contact point in an arbitrary position between the positive terminal and the center tap, and a second contact point in a position corresponding to the first contact point between the negative terminal and the center tap, a first variable capacitor bank connected between the positive terminal and the negative terminal and including a plurality of first variable capacitors which switch capacitance between two values according to a first digital control code, and a second variable capacitor bank connected between the first contact point and the second contact point and including a plurality of second variable capacitors which switch capacitance between two values according to a second digital control code.
摘要翻译：数字控制振荡器包括差分电感器，其包括输出正相振荡信号的正极端子，输出负相位振荡信号的负极端子和中心抽头，并且包括位于第一接触点之间的任意位置的第一接触点正极端子和中心抽头，以及与负极端子和中心抽头之间的第一接触点对应的位置的第二接触点，连接在正极端子和负极端子之间的第一可变电容器组，并且包括多个第一可变电容器，其根据第一数字控制代码在两个值之间切换电容;以及第二可变电容器组，其连接在所述第一接触点和所述第二接触点之间，并且包括多个第二可变电容器，所述第二可变电容器根据第二个数字控制代码。

77. 发明授权

US07095806B2 Receiver 失效
标题翻译：接收器
公开(公告)号：US07095806B2
公开(公告)日：2006-08-22
申请号：US10773218
申请日：2004-02-09
申请人： Hiroshi Tsurumi , Hiroshi Yoshida , Shoji Otaka , Hiroshi Tanimoto
发明人： Hiroshi Tsurumi , Hiroshi Yoshida , Shoji Otaka , Hiroshi Tanimoto
IPC分类号： H04N5/76
CPC分类号： H04B1/0014 , H04B1/0007 , H04B1/0039 , H04B1/28
摘要： An orthogonal demodulating section converts the frequency of received signals to the lower range after rejecting an image band thereof by an RE filter. An image rejecting section rejects the image band of the orthogonally converted output. It allows enough of an image rejecting degree to be obtained. An A/D converter section converts the whole range into a digital signal and an orthogonal demodulating section demodulates a desirable channel by means of digital processing. Then, a channel selecting section selects and outputs the desirable channel.
摘要翻译：正交解调部通过RE滤波器将接收信号的频率抑制在其图像频带之后，将其接收信号的频率转换为较低范围。图像拒绝部分拒绝正交转换输出的图像带。它允许获得足够的图像拒绝度。 A / D转换器部分将整个范围转换为数字信号，并且正交解调部分通过数字处理解调期望的信道。然后，频道选择部分选择并输出所需频道。

78. 发明授权

US07088980B2 Frequency converter with nonlinear distortion cancellation 失效
标题翻译：具有非线性失真消除的变频器
公开(公告)号：US07088980B2
公开(公告)日：2006-08-08
申请号：US10180017
申请日：2002-06-27
申请人： Shoji Otaka
发明人： Shoji Otaka
IPC分类号： H04B1/26
CPC分类号： H03D7/1425 , H03D7/1433 , H03D7/1441 , H03D2200/0025 , H03H7/19
摘要： A frequency converter comprises a first mixer which frequency-converts an input signal with a first conversion gain in accordance with a local signal, a second mixer which frequency-converts the input signal with a second conversion gain lower than the first conversion gain in accordance with the local signal, and an adder which adds the output signals of the first and second mixers in opposite phase to each other in order to reduce distortion.
摘要翻译：一种变频器包括：第一混频器，其根据本地信号对具有第一转换增益的输入信号进行频率转换;第二混频器，其根据第一混频器对具有低于第一转换增益的第二转换增益进行频率转换，本地信号，以及将第一和第二混频器的输出信号彼此相反相加的加法器，以减少失真。

79. 发明授权

US06885239B2 Mobility proportion current generator, and bias generator and amplifier using the same 失效
标题翻译：移动比例电流发生器，偏置发生器和放大器使用相同
公开(公告)号：US06885239B2
公开(公告)日：2005-04-26
申请号：US10283199
申请日：2002-10-30
申请人： Shoji Otaka
发明人： Shoji Otaka
IPC分类号： G05F3/20 , G05F3/00
CPC分类号： G05F3/205
摘要： A mobility proportion current generator comprises a voltage adder including a first MOS transistor, the voltage adder adding a voltage whose temperature dependency is small with respect to the mobility and a threshold voltage of the first MOS transistor to output a sum voltage, and a second MOS transistor including whose drain terminal is connected to a constant potential point, the sum voltage of the voltage adder being applied between the gate terminal and the source terminal of the second MOS transistor to output a current proportional to the mobility being output from the drain terminal thereof.
摘要翻译：移动比比例电流发生器包括电压加法器，该电压加法器包括第一MOS晶体管，该电压加法器相对于迁移率加上温度依赖性小的电压以及第一MOS晶体管的阈值电压以输出和电压;以及第二MOS 晶体管，其漏极端子连接到恒定电位点，电压加法器的和电压施加在第二MOS晶体管的栅极端子和源极端子之间，以输出与其漏极端子输出的迁移率成正比的电流。

80. 发明授权

US06339711B1 Radio apparatus 失效
标题翻译：无线电设备
公开(公告)号：US06339711B1
公开(公告)日：2002-01-15
申请号：US09039464
申请日：1998-03-16
申请人： Shoji Otaka , Hiroshi Tsurumi , Hiroshi Yoshida , Syuichi Sekine , Hiroyuki Kayano , Tadahiko Maeda
发明人： Shoji Otaka , Hiroshi Tsurumi , Hiroshi Yoshida , Syuichi Sekine , Hiroyuki Kayano , Tadahiko Maeda
IPC分类号： H04B138
CPC分类号： H03D3/008 , H03F1/30 , H03F3/189 , H03F2200/294 , H03F2200/372 , H03F2200/504 , H03G3/3042 , H03L7/107 , H04B1/18 , H04B1/28 , H04B1/30 , H04B1/403 , H04B1/405
摘要： In a radio apparatus, the band of a loop filter of a synthesizer in a blank channel searching state is narrower than the band in a communicating state. In addition, a radio wave environment is measured. A characteristic necessary for the radio apparatus is determined corresponding to the measured radio wave environment. The power is controlled corresponding to the performance of the radio apparatus. Thus, the power consumption is decreased. In addition, the efficiency of the output power is improved. In the radio apparatus, the current consumption of a power amplifier PA is measured. A matching circuit (LNA or MIX) of the antenna is adjusted with the measured result so as to decrease an antenna loss. In the radio apparatus, a DC offset is removed from the transmitted power and the reflected wave. When the DC offset is removed using an AC coupling capacitor, the deterioration of the frequency characteristic of the receiving portion is compensated with a capacitor in a digital signal process. In the radio apparatus, a transmission power detecting portion is structured as an IC chip. The transmission power detecting portion detects the transmission power corresponding to leakage currents in the power supply of the IC chip and the ground. Thus, when the power is detected, a power loss is suppressed. Consequently, the power consumption of the radio apparatus can be decreased.
摘要翻译：在无线电设备中，空白信道搜索状态的合成器的环路滤波器的频带比通信状态的频带窄。另外，测量无线电波环境。根据测得的无线电波环境确定无线电设备所必需的特性。根据无线电设备的性能来控制功率。因此，功耗降低。此外，输出功率的效率提高。在无线电设备中，测量功率放大器PA的电流消耗。利用测量结果调整天线的匹配电路（LNA或MIX），以减少天线损耗。在无线电设备中，从发射功率和反射波中去除DC偏移。当使用AC耦合电容器去除DC偏移时，在数字信号处理中用电容器补偿接收部分的频率特性的劣化。在无线电设备中，传输功率检测部分被构造为IC芯片。发送功率检测部分检测与IC芯片和地面的电源中的泄漏电流相对应的发送功率。因此，当检测到电力时，功率损失被抑制。因此，可以减少无线电设备的功耗。

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