Data transmitting apparatus, data receiving apparatus, data transmitting system and data transmitting method

摘要

In data communication by packets of data, transmission not only commands but also data that cannot be accommodated in one packet is to be achieved by a packet similar to one used in exchanging-commands. To this end, a field in which to store the information specifying the format of a frame in a packet is provided in the packet. As one of the formats that can be discriminated by this field, there is provided a format which provides so that the frame has a packet label field which to store the information specifying the relation between plural packets divided from the transmission data and a data field in which to store the command and/or optional data for an equipment of destination of transmission.