| 摘要 |
PURPOSE:To ensure the steady remote control by generating intermittently the reception confirmation signal for the remote control signal and applying automatically the pseudo remote control detection output to the inside of the telephone set under transmission of the reception confirmation signal. CONSTITUTION:The signal of a fixed level is delivered 2 when the remote control signal features more than a fixed level, and the oscillation tone which is changed into the confirmation signal by the output signal sent from timer 3 is generated 6 intermittently. With this intermittent output oscillator 4 is driven to transmit the intermittent signal of a fixed frequency to input terminal 1. As a result, a fixed level is applied to the remote control circuit via output terminal 5 with every arrival of the remote control signal. |
