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    • 11. 发明专利
    • Receiver
    • 接收器
    • JP2012169982A
    • 2012-09-06
    • JP2011030845
    • 2011-02-16
    • Toshiba Corp株式会社東芝
    • FURUKAWA TSUYOSHIOGURA KOJIOTAKA SHOJIISHIHARA HIROAKI
    • H04B1/16H03G3/20
    • H04B17/318
    • PROBLEM TO BE SOLVED: To control gain so as to obtain an SNR required for demodulation processing.SOLUTION: A receiver according to an embodiment includes a variable gain amplifier, a comparator and a signal processing unit. The variable gain amplifier is capable of amplifying a first reception signal to generate a second reception signal, and changing the gain of amplifying the first reception signal. The comparator compares a signal level of the second reception signal with a first threshold, and generates a third reception signal whose signal level is "High" in the case where the signal level is higher than the first threshold and whose signal level is "Low" lower than "High" in the case where the signal level is equal to or below the first threshold. The signal processing part determines that the signal is present in the case where the temporal proportion of "High" in the third reception signal exceeds a second threshold, performs control of the gain and demodulation process on the basis of the determination result, and sets the second threshold for a first period, in which gain control is performed, to a value larger than the second threshold for a second period, in which the demodulation process is performed.
    • 要解决的问题:控制增益以获得解调处理所需的SNR。 解决方案:根据实施例的接收机包括可变增益放大器,比较器和信号处理单元。 可变增益放大器能够放大第一接收信号以产生第二接收信号,并且改变放大第一接收信号的增益。 比较器将第二接收信号的信号电平与第一阈值进行比较,并且在信号电平高于第一阈值并且其信号电平为“低”的情况下产生信号电平为“高”的第三接收信号, 在信号电平等于或低于第一阈值的情况下低于“高”。 信号处理部判定在第三接收信号中的“高”的时间比例超过第二阈值的情况下存在信号,根据判定结果进行增益解调处理的控制, 执行增益控制的第一周期的第二阈值为执行解调处理的第二周期的大于第二阈值的值。 版权所有(C)2012,JPO&INPIT
    • 12. 发明专利
    • Radio transmitting apparatus using cartesian loop
    • 使用卡特彼勒环路的无线传输设备
    • JP2009296073A
    • 2009-12-17
    • JP2008145180
    • 2008-06-02
    • Toshiba Corp株式会社東芝
    • OTAKA SHOJIISHIHARA HIROAKIHOSOYA MASAHIROWATANABE OSAMU
    • H04L27/36
    • PROBLEM TO BE SOLVED: To reduce the transient response time until transmission power reaches a prescribed value when changing a Cartesian loop from an open state to a closed state. SOLUTION: When the Cartesian loop is open and the desired transmission power is set, a control signal is generated to minimize amplitude and phase error, and is stored. The difference in transmission power between when the Cartesian loop is open and when it is closed can be reduced by loading and setting the signal during transmission, and the transition response time for transmission power when the Cartesian loop is switched from the open state to the closed state can be reduced. Additionally, phase difference detection unaffected by amplitude is provided by normalizing the amplitude by outputting a phase difference detection signal only when the signal amplitude is large, in order to carry out a calibration that is unaffected by amplitude while using an input I/Q signal, which is a modulation signal. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:当将笛卡尔声音从打开状态更改为关闭状态时,减少发送功率达到规定值之前的瞬态响应时间。 解决方案:当笛卡尔回路打开并设置所需的发送功率时,产生控制信号以最小化振幅和相位误差,并存储。 当笛卡尔回路打开和关闭时,传输功率的差异可以通过在传输过程中加载和设置信号以及当笛卡尔回路从打开状态切换到关闭状态时的传输功率的转换响应时间来减少 状态可以减少。 此外,不受振幅影响的相位差检测通过仅在信号振幅较大时输出相位差检测信号来归一化振幅,以便在使用输入I / Q信号时执行不受幅度影响的校准, 这是调制信号。 版权所有(C)2010,JPO&INPIT
    • 15. 发明专利
    • Wireless power transmission control device, power transmission device, power reception device, and wireless power transmission system
    • 无线电力传输控制装置,电力传输装置,电力接收装置和无线电力传输系统
    • JP2014103751A
    • 2014-06-05
    • JP2012253490
    • 2012-11-19
    • Toshiba Corp株式会社東芝
    • ISHIHARA HIROAKIONIZUKA KOHEIMORITSUKA FUMIOTAKA SHOJI
    • H02J17/00
    • H04B5/0037H02J5/005H02J7/025H02J50/12H04B5/0093
    • PROBLEM TO BE SOLVED: To rise power of a power transmission device while suppressing loss to a low level.SOLUTION: A wireless power transmission control device according to an aspect of the present invention comprises: an input part; an output part; and a wireless power transmission control part. The input part receives a first power information item representing power transmitted by a power transmission device. The input part receives a second power information item representing power received by a power reception device. The output part outputs a first control signal configured to instruct a power transmission voltage of the power transmission device. The output part outputs a second control signal configured to instruct an impedance of the power reception device. The wireless power transmission control part generates the second control signal such that a difference between the first power information item and the second power information item becomes small, and generates the first control signal such that a difference between the first power information item and a first target value becomes small, or a difference between the second power information item and the second target value becomes small.
    • 要解决的问题:为了提高功率传输装置的功率,同时将损耗抑制到低水平。解决方案:根据本发明的一个方面的无线电力传输控制装置包括:输入部分; 输出部分; 和无线电力传输控制部。 输入部接收由动力传递装置发送的功率的第一功率信息项。 输入部分接收表示由受电装置接收的功率的第二功率信息项。 输出部输出用于指示动力传递装置的动力传递电压的第一控制信号。 输出部输出用于指示受电装置的阻抗的第二控制信号。 无线电力传输控制部分生成第二控制信号,使得第一电力信息项和第二电力信息项之间的差变小,并且产生第一控制信号,使得第一电力信息项与第一目标之间的差 值变小,或者第二功率信息项和第二目标值之间的差变小。
    • 16. 发明专利
    • Control device and radio power transmission device
    • 控制装置和无线电发射装置
    • JP2013162709A
    • 2013-08-19
    • JP2012024904
    • 2012-02-08
    • Toshiba Corp株式会社東芝
    • ISHIHARA HIROAKIONIZUKA KOHEIMORITSUKA FUMIOTAKA SHOJI
    • H02J17/00
    • H02J50/12H02J5/005H02J17/00H02M5/42
    • PROBLEM TO BE SOLVED: To easily estimate power transmission efficiency.SOLUTION: The control device estimates power transmission efficiency between a power transmission unit and a power receiving unit. The power transmission unit includes a first coil and a first capacitive portion connected to the first coil in parallel or in series. The power receiving unit includes a second coil and a second capacitive portion connected to the second coil in parallel or in series and receives power from the power transmission unit through connection between the first coil and the second coil. The control device has an estimation part which estimates the power transmission efficiency to the power receiving unit from the power transmission unit by comparing detection results of a first voltage or a first current at a first position in the power transmission unit with detection results of a second voltage or a second current at a second position in the power receiving unit.
    • 要解决的问题:容易估计输电效率。解决方案:控制装置估计电力传输单元和受电单元之间的功率传输效率。 动力传递单元包括并联或串联连接到第一线圈的第一线圈和第一电容部分。 电力接收单元包括并联或串联连接到第二线圈的第二线圈和第二电容部分,并且通过第一线圈和第二线圈之间的连接从功率传输单元接收电力。 控制装置具有估计部,其通过将电力传输部中的第一位置的第一电压或第一电流的检测结果与第二电压的检测结果进行比较,来估计从电力传输部到电力接收部的电力传输效率 电压或第二电流在电力接收单元中的第二位置。
    • 17. 发明专利
    • Filter adjustment device, power supply control system, and filter adjustment method
    • 滤波器调节装置,电源控制系统和滤波器调整方法
    • JP2012044455A
    • 2012-03-01
    • JP2010184223
    • 2010-08-19
    • Toshiba Corp株式会社東芝
    • IWATA SHIGEYASUISHIHARA HIROAKIFURUKAWA TSUYOSHIOTAKA SHOJI
    • H03H11/04
    • H03H11/1291H03H11/0472H03H2210/04
    • PROBLEM TO BE SOLVED: To provide a filter adjustment device capable of automatically compensating for variations in filter characteristics with high precision based on a result of detecting amplitudes, without performing phase comparison.SOLUTION: According to an embodiment, the filter adjustment device comprises a filter, a reference signal generation module, a control module, an amplitude detection module, and an adjustment module. Filter characteristics of the filter are controlled according to a characteristics control signal. The reference signal generation module generates a reference signal with an amplitude determined according to an amplitude control signal, and supplies the generated reference signal to the filter. The control module sets different filter characteristics of the filter according to the characteristics control signal, and sets different amplitude values of the reference signal according to the amplitude control signal. In a state in which the different filter characteristics of the filter are set according to the characteristics control signal, the amplitude detection module detects amplitude of an output signal of the filter with respect to the reference signal with different amplitudes. The adjustment module determines a desired characteristics control signal that achieves desired filter characteristics according to a plurality of amplitude values detected by the amplitude detection module.
    • 要解决的问题:提供一种滤波器调节装置,其能够基于检测振幅的结果以高精度自动补偿滤波器特性的变化,而不执行相位比较。 解决方案:根据实施例,滤波器调节装置包括滤波器,参考信号生成模块,控制模块,振幅检测模块和调整模块。 根据特性控制信号控制滤波器的滤波特性。 参考信号生成模块生成具有根据幅度控制信号确定的振幅的参考信号,并将生成的参考信号提供给滤波器。 控制模块根据特性控制信号设置滤波器的不同滤波器特性,并根据幅度控制信号设置参考信号的不同幅度值。 在根据特性控制信号设定滤波器的不同滤波器特性的状态下,振幅检测模块相对于具有不同振幅的基准信号检测滤波器的输出信号的振幅。 调整模块根据由振幅检测模块检测到的多个振幅值来确定实现期望的滤波器特性的所需特性控制信号。 版权所有(C)2012,JPO&INPIT
    • 18. 发明专利
    • Fmcw signal generation circuit
    • FMCW信号发生电路
    • JP2010237172A
    • 2010-10-21
    • JP2009087992
    • 2009-03-31
    • Toshiba Corp株式会社東芝
    • SAKURAI HIROKIISHIHARA HIROAKIMITOMO TOSHIYA
    • G01S7/28G01S13/34
    • G01S7/4008G01S13/345H03C3/08H03C3/09
    • PROBLEM TO BE SOLVED: To provide an FMCW signal generation circuit for generating signals converting a frequency with high linearity in small circuit scale and low power consumption. SOLUTION: The FMCW signal generation circuit 100 includes: an oscillator 101 for controlling an oscillation frequency by control signals and generating FMCW signals; a phase detector 102 for detecting the phases of the FMCW signals; a first differentiator 103 for differentiating the phase to obtain a frequency; a second differentiator 104 for differentiating the frequency to obtain a frequency change amount; a subtractor 106 for calculating an error between a set frequency change amount set at a prescribed value and the frequency change amount; and an integrator 107 for integrating the error to generate control signals of the oscillator 101. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种FMCW信号发生电路,用于产生在小电路规模和低功耗下以高线性度转换频率的信号。 解决方案:FMCW信号产生电路100包括:振荡器101,用于通过控制信号控制振荡频率并产生FMCW信号; 用于检测FMCW信号的相位的相位检测器102; 用于区分相位以获得频率的第一微分器103; 用于区分频率以获得频率变化量的第二微分器104; 用于计算设定在规定值的设定频率变化量与频率变化量之间的误差的减法器106; 以及用于积分误差以产生振荡器101的控制信号的积分器107.版权所有(C)2011,JPO&INPIT
    • 19. 发明专利
    • Filter circuit, and receiver using and filtering method using the same
    • 滤波电路,以及接收器的使用和使用该方法的滤波方法
    • JP2009212587A
    • 2009-09-17
    • JP2008050945
    • 2008-02-29
    • Toshiba Corp株式会社東芝
    • ISHIHARA HIROAKIHOSOYA MASAHIROOKUNI HIDENORI
    • H04B1/10
    • H04B1/12
    • PROBLEM TO BE SOLVED: To provide a filter circuit capable of highly efficiently removing an interference wave component, and to provide a receiver and a filtering method using the same.
      SOLUTION: The filter circuit 100 has a structure in which, in a filtering mode, an analog-digital converter 121 converts a discrete time signal obtained by sampling an input signal into a digital signal, a digital filter 122 extracts signals out of a predetermined band, a digital-analog converter converts the signal into an analog signal and generates an interference wave analog signal. A delay unit 140 gives a signal delay equal to the interference analog signal to the discrete time sinal. The interference analog signal is subtracted from the discrete time signal given with the signal delay and an output signal is obtained. In a correction mode, a control circuit 180 of the filter circuit 100 controls a signal generator 170 so as to output a predetermined discrete time signal, and corrects a filter coefficient of the digital filter 122 based on an output signal of the filter circuit 100 when the predetermined discrete time signal is used as an input.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够高效地去除干扰波分量的滤波电路,并提供一种接收机和使用该滤波器的滤波方法。 滤波电路100具有以下结构:在滤波模式中,模数转换器121将通过将输入信号取样获得的离散时间信号转换为数字信号,数字滤波器122从 预定频带,数模转换器将该信号转换为模拟信号并产生干扰波模拟信号。 延迟单元140将等于干扰模拟信号的信号延迟给出到离散时间sinal。 从信号延迟给出的离散时间信号中减去干扰模拟信号,并获得输出信号。 在校正模式中,滤波器电路100的控制电路180控制信号发生器170以输出预定的离散时间信号,并且基于滤波器电路100的输出信号来校正数字滤波器122的滤波器系数, 预定离散时间信号用作输入。 版权所有(C)2009,JPO&INPIT