Data transmitter, data receiver, data communication system, data transmitting method, data receiving method, and data communicating method

摘要

A first speed switching portion switches a transfer speed of digital data on a transmitter side into a predetermined transfer speed. A first command transmitter/receiver transmits to a receiver side a speed switching command which makes switch a transfer speed of the digital data on a receiver side into a transfer speed which coincides with the predetermined transfer speed. A source data reader transmits the digital data to the receiver side at the predetermined transfer speed after the transfer speed of the digital data on the receiver side has been switched into the transfer speed which coincides with the predetermined transfer speed. A second speed switching portion switches the transfer speed of the digital data on the receiver side into the predetermined transfer speed in compliance with the speed switching command which is transmitted from the transmitter side. A second command transmitter/receiver informs the transmitter side of an end of switching after the transfer speed of the digital data on the receiver side has been switched into the predetermined transfer speed. An image memory receives the digital data transmitted from the transmitter side at the predetermined transfer speed after the transmitter side has been informed of the end of switching.