| 摘要 |
PURPOSE: To provide a data transmission system whose execution time is shortened when no compressing operation is used for transmission. CONSTITUTION: The data transmission system is provided with switching means 101 to 104 and 105, 201 to 204 and 205 to switch a transmitter 10 and a receiver 20 from a first data compressing operation mode to a second operation mode called as a releasing mode when compression of the transmitter 10 and the receiver 20 of a synchronized transmission system are no longer effective and data is directly transmitted or received without compression or extension of a predetermined number of data in each of transmission and reception by the second operation mode. |
