| 摘要 |
PURPOSE:To allow a device to have only to send only deficient data again by detecting or correcting an error of a fetched data block and arranging and storing a packet data without error till the data to a data terminal equipment is made complete. CONSTITUTION:When a decoding section 10 receives a data block fetched by a data reception section 9, the error is detected respectively based on a redundant bit added to each packet data and when any error is detected, a signal requesting the retransmission of the data block is generated and outputted to a data block processing section 8. Moreover, the packet data decided to have no error is sent to a data storage section 11 and till all data to the data terminal equipment are arranged, the data are arranged in a prescribed order and stored. Thus, even when the transmission line is interrupted during the communication or there is any error in a part of the data, only the deficient data is sent again in the occurrence of transmission line interruption or the occurrence of an error. |
