| 摘要 |
PURPOSE:To save the circuit cost by converting mixed mode data to transmitting data of only picture information with the nearest repeater of a reception side communication equipment and transmitting it to the reception side communication equipment, in the case of transmitting the mixed mode data to the receiving side communication equipment which cannot receive the mixed mode data. CONSTITUTION:The reception side communication equipment 4 is in a remote place from a transmission side communication equipment 1, this reception side communication equipment 4 cannot receive mixed mode data and is the nearest repeater 3. Therefore, between the repeater in which the circuit using frequency is high and the transmission side communication equipment 1, mixed mode data whose data quantity is small is transmitted, and between the repeater 3 of a short distance and the reception side communication equipment 4, data (converted data) of only image information whose data quantity is large is transmitted. In such a manner, the circuit cost can be saved, comparing with the case the mixed mode data is converted to data of only image information in the transmission side communication equipment 1 and transmitted directly to the remote reception side communication equipment 4. |
