DATA TRANSMISSION APPARATUS AND DATA TRANSMISSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a data transmission apparatus and a data transmission system, capable of warranting a band for serial signal transmission and transmitting data at different transmission rates through a wireless channel adopting adaptive modulation.

SOLUTION: The data transmission apparatus includes a first input output terminal for a data signal for a variable transmission rate; a second input output terminal for a data signal for a constant transmission rate; an input output signal processing section for receiving the data signals from the first and second input output terminals; a modulation section for modulating the output of the input output signal processing section; a first control section for controlling the modulation section; and a transmission section, wherein the input output signal processing section is provided with a first transmission buffer memory, to which the data signal from the first input output terminal is written, a second transmission buffer memory to which the data signal from the second input output terminal is written; and a first selector for switching and reading the data signals from the first transmission buffer memory and the second transmission buffer memory at a prescribed read speed; and the first control section controls the switching of the first selector.

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