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    • 51. 发明申请
    • System for transmitting a signal for positioning and method for producing the system
    • 用于发送定位信号的系统和用于产生系统的方法
    • US20050206567A1
    • 2005-09-22
    • US11065812
    • 2005-02-25
    • Hideyuki TorimotoMakoto Ishii
    • Hideyuki TorimotoMakoto Ishii
    • H04B7/155G01S1/00G01S3/02G01S5/14G08C15/00
    • G01S19/11
    • A transmitting system, which is capable of transmitting a signal for positioning to an area where radio waves are hardly received, is provided. The transmitting system for transmitting the signal for positioning includes a GPS compatible mixer combining a GPS signal for positioning received by a GPS antenna and a BS broadcasting signal received by a BS antenna and outputting the combined signal, a BS-IF compatible amplifier amplifying the signal output from the GPS compatible mixer and outputting the amplified signal, a separator separating the signal output from the BS-IF compatible amplifier into a BS broadcasting signal and a GPS signal, a BS tuner receiving an input of the BS broadcasting signal output from the separator and obtaining a signal of a channel tuned by a user, a GPSBP filter passing a GPS signal included in a predetermined frequency band out of the signal output from the separator, and a GPS issuing unit.
    • 提供一种发射系统,其能够发送用于定位的信号到几乎不能接收无线电波的区域。 用于发送用于定位的信号的发送系统包括组合用于由GPS天线接收的定位的GPS信号和由BS天线接收的BS广播信号并输出​​组合信号的GPS兼容混频器,放大信号的BS-IF兼容放大器 从GPS兼容混频器输出并输出放大信号,将从BS-IF兼容放大器输出的信号分离成BS广播信号和GPS信号的分离器,接收从分离器输出的BS广播信号的输入的BS调谐器 并且获取由用户调谐的信道的信号,GPSBP滤波器,其通过从分离器输出的信号中包含在预定频带中的GPS信号,以及GPS发布单元。
    • 55. 发明授权
    • Controller for PWM/PAM motor, air conditioner, and method of motor control
    • PWM / PAM电机控制器,空调器及电机控制方式
    • US06626002B1
    • 2003-09-30
    • US09763593
    • 2001-02-26
    • Yasuo NotoharaYukio KawabataKazuo TaharaMakoto IshiiYuhachi TakakuraHiroshi Shinozaki
    • Yasuo NotoharaYukio KawabataKazuo TaharaMakoto IshiiYuhachi TakakuraHiroshi Shinozaki
    • H02P742
    • H02P27/08H02M5/4585H02P6/085
    • In a motor driving unit controlled by switching to/from PWM control from/to PAM control so that the maximum limit of motor speed can be increased and, at the same time, the unit can be operated at maximum efficiency during steady-state operation, the motor speed is controlled by maintaining the DC voltage command to the converter control circuit constant, but altering the conduction ratio command value to the inverter control circuit when the load to the motor is low, and by maintaining the conduction ratio command to the inverter control circuit constant, but altering the DC voltage command to the converter control circuit. There is a commutating phase control circuit that alters the commutating timing of the coil of the motor, and the motor is so controlled that the efficiency reaches the maximum limit during steady-state operation and the speed reaches the maximum limit during high-speed operation.
    • 在通过切换到/从PAM控制的PWM控制控制的电动机驱动单元中,可以增加电动机速度的最大极限,并且同时在稳态运行期间可以以最大的效率运行单元, 通过将转换器控制电路的直流电压指令保持恒定来控制电动机速度,但是当对电动机的负荷低时,将导通比指令值改变为变频器控制电路,并且通过保持与变频器控制的导通率指令 电路常数,但改变直流电压命令到转换器控制电路。 有一个整流相位控制电路,改变电动机线圈的整流时间,电机受到控制,使得在稳态运行期间效率达到最大极限,而高速运行时速度达到最大极限。