PURPOSE: To easily measure a length of a transmission line between a station equipment and plural terminal equipment and to allow the station equipment to optionally control a transmission timing of an incoming burst signal from each terminal equipment.
CONSTITUTION: A station equipment 1 measures a required period of (m) from the transmission of an outgoing burst signal till the reception of an incoming burst signal sent from a specific terminal equipment 2. The station equipment is provided with data for a desired required period of time α for a terminal equipment and obtains a delay time β added to require the arrangement of the incoming burst signal from the terminal equipment to a desired location by an equation of β=α-m. The station equipment sends the outgoing burst signal with the information of delay time β added thereto and the terminal equipment delays the transmission of the incoming burst signal according to the information of the delay time β for its own equipment to be received. The station equipment revises the desired required period of time α in a group by adding or subtracting a prescribed value to/from the desired required time a for each of the plural terminal equipments.
TAKAHASHI YUJI
TSURUMAKI SHINZO
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