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    • 2. 发明申请
    • BRUSHLESS MOTOR DRIVE DEVICE
    • 无刷电机驱动装置
    • US20130069571A1
    • 2013-03-21
    • US13610310
    • 2012-09-11
    • Naoki OkamotoMasaki Hano
    • Naoki OkamotoMasaki Hano
    • H02P6/18
    • H02P6/182H02P27/08
    • A brushless motor drive device switches energization modes for supplying power to two phases of a three-phase brushless motor, based on an induced voltage induced in a non-energized phase. In a case in which a target duty ratio Dt, which is a duty ratio of a PWM signal according to a manipulated variable of the brushless motor becomes less than a detection limit value Dlim, which is the lower limit of a duty ratio capable of detecting an induced voltage, there is set a detection timing (1/N) for detecting an induced voltage according to the cycle of a PWM signal, and a detection time duty ratio D1, which is a duty ratio of the PWM signal at the detection timing, is restricted to Dlim.
    • 无刷电动机驱动装置基于在非通电阶段中感应的感应电压来切换用于向三相无刷电动机的两相供电的通电模式。 在作为根据无刷电动机的操作量的PWM信号的占空比的目标占空比Dt小于能够检测的占空比的下限的检测限制值Dlim的情况下 感应电压,根据PWM信号的周期设定用于检测感应电压的检测定时(1 / N),以及作为检测时刻的PWM信号的占空比的检测时间占空比D1 ,限于Dlim。
    • 3. 发明授权
    • Brushless motor drive device
    • 无刷电机驱动装置
    • US09013128B2
    • 2015-04-21
    • US13610310
    • 2012-09-11
    • Naoki OkamotoMasaki Hano
    • Naoki OkamotoMasaki Hano
    • H02P6/04H02P6/18H02P27/08
    • H02P6/182H02P27/08
    • A brushless motor drive device switches energization modes for supplying power to two phases of a three-phase brushless motor, based on an induced voltage induced in a non-energized phase. In a case in which a target duty ratio Dt, which is a duty ratio of a PWM signal according to a manipulated variable of the brushless motor becomes less than a detection limit value Dlim, which is the lower limit of a duty ratio capable of detecting an induced voltage, there is set a detection timing (1/N) for detecting an induced voltage according to the cycle of a PWM signal, and a detection time duty ratio D1, which is a duty ratio of the PWM signal at the detection timing, is restricted to Dlim.
    • 无刷电动机驱动装置基于在非通电阶段中感应的感应电压来切换用于向三相无刷电动机的两相供电的通电模式。 在作为根据无刷电动机的操作量的PWM信号的占空比的目标占空比Dt小于能够检测的占空比的下限的检测限制值Dlim的情况下 感应电压,根据PWM信号的周期设定用于检测感应电压的检测定时(1 / N),以及作为检测时刻的PWM信号的占空比的检测时间占空比D1 ,限于Dlim。
    • 7. 发明申请
    • RECEIVER AND RECEIVING METHOD
    • 接收和接收方法
    • US20120201333A1
    • 2012-08-09
    • US13499714
    • 2010-10-20
    • Naoki OkamotoRyota Yamada
    • Naoki OkamotoRyota Yamada
    • H04B1/16
    • H04L27/2647H04B7/022H04B7/2606H04L27/2649H04L27/2655H04W56/005
    • Disclosed is a receiver in a communication system provided with one transmitting station or two or more transmitting stations and the receiver for reception from the transmitting stations. For a case where identical signals are sent from the one transmitting station or the two or more transmitting stations, the receiver includes a first demodulator which executes demodulation processing of the signals as a single signal group, a second demodulator which executes demodulation processing of the signals as multiple signal groups, a determination unit which discriminates between the single signal group and the multiple signal groups, and a control unit which controls which one of the first demodulator and the second demodulator is to execute the demodulation processing based on a determination result by the determination unit.
    • 公开了一种通信系统中的接收机,其具有一个发送站或两个或更多个发送站以及用于从发送站接收的接收机。 对于从一个发送站或两个以上发送站发送相同的信号的情况,接收机包括执行作为单个信号组的信号的解调处理的第一解调器,执行信号的解调处理的第二解调器 作为多个信号组,确定单元,其识别单个信号组和多个信号组;以及控制单元,其基于所述第一解调器和第二解调器的确定结果来控制第一解调器和第二解调器中的哪一个执行解调处理 决定单位。