Data transmission system

DETAILED DESCRIPTION It is an object of the present invention to provide a data transmission system capable of properly receiving data from another electronic equipment even if a power failure occurs and of performing accurate data processing.
In order to achieve the above object of the present invention, there is provided a data transmission system comprising: a data transmitter/receiver for controlling to receive and transmit data, the data transmitter/receiver being provided with storage means for storing reception data and keeping the reception data as transmitted data even after the reception data is transmitted; a buffer memory, connected to the data transmitter/receiver, for storing data transmitted from the data transmitter/receiver; and a data processor for reading out the data from the buffer memory and processing readout data, wherein the data transmitter/receiver retransmits the transmitted data to the data processor in response to recovery of power of the data processor.
In the data transmitter/receiver of the data transmission system having the arrangement described above, the transmitted data for the data processor is stored in a capacity enough to allow the data processor to perform data processing.
After the power failure is recovered, the storage content is sent again to the data processor.
For this reason, as compared with the conventional system wherein the reception data is lost before it is completely processed by the data processor upon occurrence of a power failure and no special countermeasure is taken therefor, data reception at the data processor can be properly achieved, and accurate data processing can be performed.