| 摘要 |
PURPOSE:To increase the efficiency of data transfer, by converting the data of unit number M into that of unit number N smaller than M at the transmitter side and transmitting the converted data along with a command of conversion. CONSTITUTION:At the transmitter side, the data of unit number M, e.g. 8 is converted 2 into the unit number N e.g. 4 smaller than M. This converted data is transmitted along with a command of conversion comprising a synchronous pattern and its following information of conversion. At the receiver side, the synchronous pattern is detected through a transmitting register 5 to give the synchronism to a data transfer control circuit 4. In such a way, the conventional 8 bits are turned into 4 bits when only figures are transmitted. Furthermore the bits can be converted into an optional number. Thus the efficiency is increased for the transfer of data. |
