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    • 3. 发明专利
    • Wireless communication device and a wireless communication system
    • 空值
    • JP4802162B2
    • 2011-10-26
    • JP2007222490
    • 2007-08-29
    • 株式会社東芝
    • 俊之 中西岳文 坂本俊之 梅田寿久 鍋谷
    • H04B1/40H04B1/16H04B1/3822H04W52/02
    • H04W52/0245Y02D70/00Y02D70/10
    • Provided are a wireless communication device and a wireless communication system wherein a threshold for detecting a signal for startup is suitably set. The wireless communication device is provided with a switching section which alternately switches to first mode and second mode; a rectifier which rectifies a received wireless signal and generates a direct current signal; a threshold determining section which determines the threshold based on intensity of the direct current signal generated by the rectifier in the first mode; a threshold judging section which judges whether the intensity of the direct current signal generated by the rectifier is higher than the threshold determined by the threshold determining section in the second mode; and a power supply control section which controls a power supply to supply the threshold determining section with power in the first mode and supply the threshold judging section with power in the second mode.
    • 提供了一种无线通信设备和无线通信系统,其中适当地设置用于检测用于启动的信号的阈值。 无线通信装置设置有交替切换到第一模式和第二模式的切换部分; 整流器,其对接收到的无线信号进行整流并产生直流信号; 阈值确定部,其基于由所述整流器在所述第一模式中产生的所述直流信号的强度来确定所述阈值; 阈值判定部,其判定由所述整流器产生的直流电流信号的强度是否高于由所述阈值判定部在所述第二模式中确定的阈值; 以及电源控制部分,其控制电源以向所述阈值确定部分提供处于所述第一模式的电力,并且在所述第二模式中向阈值判断部分提供电力。