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    • 63. 发明公开
    • Portable electronic device having a radio transmit-receive unit and a computer unit
    • 具有无线电发射接收单元和计算机单元的便携式电子设备
    • EP0553862A3
    • 1994-11-17
    • EP93101423.7
    • 1993-01-29
    • CANON KABUSHIKI KAISHA
    • Hamano, Soji, c/o Canon Kabushiki KaishaTanabe, Takayuki, c/o Canon Kabushiki Kaisha
    • H04M1/72H04B15/06
    • G06F1/32H04B15/04H04M1/725H04M1/73H04W52/0274Y02D70/00
    • A radio transmit-receive unit can perform the communication processing stably without being affected by high frequency noise with the system activation of a computer unit, whereby if a communication processing request from the radio transmit-receive unit occurs, the computer unit sets the system state of a sub-CPU being activated to a rest state, a counter starts clocking the signal receive time of the radio transmit-receive unit when the system state of the sub-CPU is in a rest state, and a latch circuit holds electric field strength information of carrier received by the radio transmit-receive unit upon the termination of clocking by the counter. And the computer unit switches the system state of the sub-CPU being at rest to an active state, based on the end state of clocking by the counter, to restart the activation of the computer unit.
    • 无线电发送接收单元可以通过计算机单元的系统激活而稳定地执行通信处理而不受高频噪声的影响,从而如果发生来自无线电发送 - 接收单元的通信处理请求,则计算机单元设置系统状态 的子CPU被激活到静止状态时,当子CPU的系统状态处于静止状态时,计数器开始计时无线发送接收单元的信号接收时间,并且锁存电路保持电场强度 在由计数器终止计时时由无线电发送 - 接收单元接收的载波的信息。 并且计算机单元基于计数器的计时结束状态,将处于休息状态的子CPU的系统状态切换到活动状态,以重新启动计算机单元。