Information transmitted through wireless communications formed by information
transmission lines from artificial satellites and radio towers or through wired
communications established by cables is categorized into four categories. The individual
information is transmitted in a broadcasting mode in synchronization with the information
transmission timing defined for each individual information category. The information
receiver captures and edits the received information and provides output for the
service client in the manner associated with the individual category corresponding
to the received information. Category-4 information is transmitted with the highest
priority immediately when the information is generated; Category-3 information
is transmitted periodically, for example, every five minutes; Category-2 information
is transmitted at a time slot when the transmission line is relatively unoccupied;
and Category-1 information is transmitted at a time slot when the transmission
line is least occupied.
