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    • 2. 发明申请
    • Transmission control method and device
    • 变速箱控制方法及装置
    • US20080026758A1
    • 2008-01-31
    • US11802155
    • 2007-05-21
    • Hirokazu Murakami
    • Hirokazu Murakami
    • H04Q7/20
    • H04W52/28H04W4/023H04W4/027H04W24/00H04W52/282H04W52/283H04W52/362H04W52/367H04W64/006H04W76/14H04W92/18
    • When information of its own station is transmitted to another mobile station by a CSMA access method, by a transmission control method and device, moving speed information and location information is transmitted with a predetermined minimum transmission power until a moving speed of its own station exceeds a first threshold, and the moving speed information and the location information is transmitted with a first transmission power proportional to the moving speed when the moving speed of its own station exceeds the first threshold. In this case, moving direction information of its own station may be acquired and transmitted in addition to the moving speed information and the location information. If the moving speed of the other mobile station exceeds a second threshold higher than the first threshold and a moving direction of the other mobile station is an approaching direction to its own station while its own station is not making transmission with the moving speed of its own station exceeding the first threshold, the first transmission power is switched over to a second transmission power proportional to the moving speed of the other mobile station and the moving speed information and the moving direction information is transmitted.
    • 当通过CSMA接入方式将其本站的信息发送到另一个移动台时,通过传输控制方法和设备,以预定的最小传输功率发送移动速度信息和位置信息,直到其本台的移动速度超过 第一阈值,并且当其本站的移动速度超过第一阈值时,以与移动速度成比例的第一传输功率来发送移动速度信息和位置信息。 在这种情况下,除了移动速度信息和位置信息之外,也可以获取并发送其本台的移动方向信息。 如果另一移动站的移动速度超过第一阈值以上的第二阈值,并且另一个移动站的移动方向是其本身站的接近方向,而其本身站不以其自身的移动速度进行传输 超过第一阈值,将第一发送功率切换到与其他移动台的移动速度成比例的第二发送功率,并且发送移动速度信息和移动方向信息。
    • 3. 发明授权
    • Transmission control method and device
    • 变速箱控制方法及装置
    • US08055279B2
    • 2011-11-08
    • US11802155
    • 2007-05-21
    • Hirokazu Murakami
    • Hirokazu Murakami
    • H04W24/00
    • H04W52/28H04W4/023H04W4/027H04W24/00H04W52/282H04W52/283H04W52/362H04W52/367H04W64/006H04W76/14H04W92/18
    • When information of its own station is transmitted to another mobile station by a CSMA access method, by a transmission control method and device, moving speed information and location information is transmitted with a predetermined minimum transmission power until a moving speed of its own station exceeds a first threshold, and the moving speed information and the location information is transmitted with a first transmission power proportional to the moving speed when the moving speed of its own station exceeds the first threshold. In this case, moving direction information of its own station may be acquired and transmitted in addition to the moving speed information and the location information. If the moving speed of the other mobile station exceeds a second threshold higher than the first threshold and a moving direction of the other mobile station is an approaching direction to its own station while its own station is not making transmission with the moving speed of its own station exceeding the first threshold, the first transmission power is switched over to a second transmission power proportional to the moving speed of the other mobile station and the moving speed information and the moving direction information is transmitted.
    • 当通过CSMA接入方式将其本站的信息发送到另一个移动台时,通过传输控制方法和设备,以预定的最小传输功率发送移动速度信息和位置信息,直到其本台的移动速度超过 第一阈值,并且当其本站的移动速度超过第一阈值时,以与移动速度成比例的第一传输功率来发送移动速度信息和位置信息。 在这种情况下,除了移动速度信息和位置信息之外,也可以获取并发送其本台的移动方向信息。 如果另一移动站的移动速度超过第一阈值以上的第二阈值,并且另一个移动站的移动方向是其本身站的接近方向,而其本身站不以其自身的移动速度进行传输 超过第一阈值,将第一发送功率切换到与其他移动台的移动速度成比例的第二发送功率,并且发送移动速度信息和移动方向信息。
    • 4. 发明授权
    • Radio transmitting system having back-up radio receiver operable in
response to failure of main feed line
    • 具有备用无线电接收器的无线电发射系统可响应主馈线的故障而工作
    • US5437059A
    • 1995-07-25
    • US906849
    • 1992-06-30
    • Hirokazu MurakamiToshihiro YabeMakoto TakahashiNorio Sasaki
    • Hirokazu MurakamiToshihiro YabeMakoto TakahashiNorio Sasaki
    • H04B1/74H04W84/02H04B7/00
    • H04W84/022H04B1/74
    • A radio calling system includes a central control station simultaneously broadcasting a calling signal of an arbitrary pager terminal, and a plurality of radio transmitting stations coupled to the central control station. The plurality of radio transmitting stations simultaneously transmit the calling signal received from the central control station at the same radio frequency. The calling signal transmitted from the radio transmitting stations reach the arbitrary pager terminal and at least a neighboring one of the radio transmitting stations. At least an arbitrary one of the radio transmitting stations includes a first relay for relaying the calling signal received from the central control station, a second relay which has a receiver part for receiving the calling signal transmitted from a radio transmitting station other than the arbitrary radio transmitting station, and a storage relay part for storing the calling signal received by the receiver part and for transmitting the stored calling signal during a time in which no transmission is made by the radio transmitting stations other than the arbitrary radio transmitting station. A switching circuit coupled to the first and second relays carries out switching to enable one of the first and second relays, depending on whether or not a communication failure exists between the central control station and the arbitrary radio transmitting station.
    • 无线电呼叫系统包括同时广播任意寻呼终端的呼叫信号的中央控制站和耦合到中央控制站的多个无线电发射站。 多个无线发送站以相同的射频同时发送从中央控制站接收的呼叫信号。 从无线电发射站发送的呼叫信号到达任意的寻呼机终端和至少相邻的一个无线电发射站。 至少任意一个无线电发射站包括用于中继从中央控制站接收的呼叫信号的第一中继器,具有用于接收从除了任意无线电以外的无线电发射站发送的呼叫信号的接收机部分的第二中继站 发送站和用于存储由接收机部分接收的呼叫信号的存储中继部分,并且用于在除了任意无线电发送站之外的无线电发送站进行发送的时间期间发送所存储的呼叫信号。 耦合到第一和第二继电器的开关电路根据中央控制站和任意无线电发送站之间是否存在通信故障执行切换以使能第一和第二继电器之一。