| 摘要 |
<p>In a communication apparatus (1), a first protocol analyzing part (11) an alyzes the state of a transport signal (Vs) received by a transport signal r eceiving part (10). Further, a transmission control part (14) determines, ba sed on a result of the analysis, whether it is a suitable communication inte rval or an unsuitable communication interval. When determining that it is a suitable communication interval, the transmission control part (14) causes a second protocol system signal transmitting part (12) to transmit a packet o f a second protocol to a signal line (Ls). As a result, it becomes possible to transmit a relatively large amount of data, while suppressing the affecti on of noise that otherwise would occur due to a change in the carrier state, as compared with the conventional art in which only the carrier state is si mply determined so as to superimpose the carrier onto transport signals (Vs) . As a result, the reliability of data transmission can be improved, while t he time division multiplex transmission system and signal line (Ls) being sh ared.</p> |
