Data communication system data communication method and data communication apparatus

摘要

A data communication system comprises devices having at least the functions of a source, a destination, and a controller. The source transmits information data by using an address specifying one part of a memory space provided in a destination. The destination stores the information data in one part of the memory space specified by that address. The controller manages data transmission between the source and the destination. In a data communication system such as this, at least one device from among the source, the destination, and the controller resumes transmission of the information data without discarding any part of the data stored in the memory space, in the event that the transmission of the information data is interrupted in conformance with the default settings of a network.