| 摘要 |
PURPOSE:To control a transmission timing of a slave set with a simple method in a cordless telephone system having one radio unit. CONSTITUTION:A master set detects an envelope of a call signal with a call signal detection section 11 and sends it to a 1st control section 12 comprising a microcomputer. The control section 12 sends a control code synchronously with a call signal corresponding to the inputted envelope to a slave set via a 1st transmission reception section 13. The control code extracted via a 2nd transmission reception section is fed to a 2nd control section 22 in the slave set, A 2nd control section 22 uses a clock generated in the inside with a prescribed period and the reset signal generated by the inputted control code to send them to a count section 3. Since the count section counts the clock from the initial state by using the inputted reset signal, the counting of slave sets 1, 2 is synchronized, A transmission control section uses the count corresponding to an identification code of its own equipment among the count from the count section to be inputted to generate a transmission ON signal and sends it to a 2nd transmission reception section, then a call reply signal stored in a buffer memory 5 is sent to the master set. |
