| 摘要 |
<p>PURPOSE:To decrease the packet residual time by composing a transmission control character representing the end of a message and a block check character just after the character and a transmission control character for transmission control expansion and data just after the character in the transmission mode into the same packet and detecting the transmission control character to decompose the reception packet. CONSTITUTION:The transmission character representing the end of a message or the like and a block check character at the composing, and the transmission control character 'DLE' keeping the transmissivity of the information and the data just after the character are composed in the same packet in the transmission mode. After the end of sending of the data of the received packet, till the next sending, the information representing the kind of time fill during sending (time fill 'DLE.SYN' at the transmission mode and time fill 'SYN' at the basic mode) is added to a packet. Thus, it is not required for the decomposition for the examination and control whether or not the transmission control character as above and the character 'DLE' at the transmission mode and the data just after the character are sent in separate packets and the examination whether or not the reception packet is in the transmission mode.</p> |
