| 摘要 |
<p>PURPOSE:To surely conduct data communication by decreasing a modulation speed when the strength of the communication radio wave of a concerned station received by an opposite station is weak. CONSTITUTION:A reception means 11 receives the communication radio wave sent from an opposite station and reproduces reception data from the reception signal. An oscillation means 12 converts transmission data into transmission signal and forms a communication radio wave and sends it to be opposite station. A control means 14 controls a data transmission means 13 depending on the output signal of the reception means 11 and when the strength of the received communication radio wave is weak, the transmission speed of the transmission data is set low thereby increasing a signal consecutive time per bit. Thus, even when much noise or distortion is included in the communication radio wave, the opposite station surely reads the bits.</p> |
