BI-DIRECTIONAL COMMUNICATING METHOD AND DEVICE OF CATV

摘要

inputting a data to be transmitted in two ways; adding flag bytes to the input transmission data; storing the transmission data with the flag bytes added thereto for a predetermined clock period; reading out the stored data and sending it when a subscriber's identification address is called; after transmitting the data, checking the flag bytes added to the data in order to determine whether the data transmission is completed or not; and displaying externally whether the data transmission is completed.