| 摘要 |
PURPOSE:To realize selective calling with minimized operation, having a high call rate and less mis-calling by performing the selective calling repetitively through the operation of a sending button. CONSTITUTION:A selective calling signal is fed to a transmission circuit 5 by a modulation signal switching circuit 4 and transmitted from an antenna 6. On the other hand, when the selective calling signal is given from the antenna 6, this signal is demodulated by a reception circuit 7 and enters a demodulation signal switching circuit 9 and is fed always to a selective calling signal detecting circuit 11. When a specified selective calling signal is detected, a control circuit 13 actuates a call tone generating circuit 8 and transmits a call tone from a speaker 12 via the demodulation signal switching circuit 9 and a demodulation system sound circuit 10. Further, the consecutive calling of the selective calling signal is stopped automatically by giving reception input voltage information from the reception circuit 7 to the control circuit 13. |
