Data transmission apparatus and method and data communication system conducting variable bit-rate data transmission

摘要

A digital data transmission apparatus includes a digital data buffer for storing digital data to be transmitted, a digital data transmitter for outputting the digital data stored in the digital data buffer to a transmission path, and a controller for controlling a transmission rate, which is an amount of data output per a unit time by the digital data transmitter, so that the transmission rate increases in accordance with passage of time.