PURPOSE: A graphical indicator is provided to reduce dot aerial density by improving the queue of micro units. CONSTITUTION: A plurality of first micro units(16) are distributed in a contents part(12). The contents part is classified into a plurality of first state zones(18). Each first state zone is classified into a plurality of hypothetical sections. The first micro unit is located one among a plurality of hypothetical sections in order to form a plurality of candidate states. A plurality of second micro units are distributed in a header part(14) in order to offer the header information. The header part is classified into a plurality of second state zones.
