| 摘要 |
PURPOSE:To execute synchronizing supervision without the reception of a synchronizing code at each batch by detecting an error of a selection call signal. CONSTITUTION:An error detection means 101 receives a selection call code of a predetermined frame in a selective call signal DATA and a clock signal CLK, and switch control signals x1-x6 from a control means 102 to detect the presence in an error in a selective call code and when any error exists, an error detection signal ERR is outputted. A control means 102 receives the signal ERR, a synchronizing supervisory circuit start signal ENA and the signal CLK and when number of times of the input of the signal ERR exceeds a predetermined value, it is discriminated that out of synchronism and interruption of selective call signal are caused and a control signal STBY is outputted. The control signal brings a battery saving circuit to the standby state of the selective call signal. |
