DATA TRANSMISSION SYSTEM

摘要

PURPOSE:To shorten the time from calling to the start of data transmission in the data transmission between a mobile terminal equipment DTE1 and a stationary terminal equipment DTE2 via a digital network DL and an analog network SL2. CONSTITUTION:A terminal equipment DET1 like a personal computer is connected to a network DL by a portable telephone set via an adaptor ADP50. The ADP50 is connected to the DTE1 by using a connection termination section 4, and a communication protocol control section 7 converts digital data from the DTE1 into a digital signal according to a communication protocol of an analog data MODEM. Then a frame synchronization control section 15 inserts a synchronization pulse and information without bit strip to the signal and sends the resulting data to the network DL, the digital signal received from the network DL is received by the control section 15 and the control section 7 recovers the digital data according to the communication protocol and sends the data to the DTE1.