| 摘要 |
<p>PURPOSE:To execute dual operation at a high speed by specifying information to be managed in received packet information, communicating alternately only the specific information and sending data to a designated external communication equipment when they are coincident. CONSTITUTION:A packet serial number management processing section 31 of a microcomputer 30 extracts and manages serial number data as specific information from packet data received in two routes from an external communication equipment. An inter-system serial number management processing section 32 uses the packet serial number management processing section 31 to make mutual communication with an inter-system serial number management processing section 32 of other system only with respect to serial number data extracted from the packet data by the packet serial number management processing section 31 and informs it to a packet data management section 33 that the input processing of a packet is made normally in both the systems by confirming the coincidence of only the serial data. The packet data management section 3 of the main system receiving the notice confirms the packet data received in advance and stored in the memory 34 to specify a packet serial number and sends it to an external communication equipment.</p> |
