Patent ID: 6640306
Filing Date: 2003-10-28
Classification: H04L

Abstract:
A transmission apparatus, comprising:a transmitting unit having: a first storing portion for storing a plurality of data files, a data generating portion for appending first identification data to a desired data file selected by a user from the plurality of data files stored in the first storing portion, and a transmitter portion for transmitting the first identification data and the desired data file; and a terminal unit having: an operating portion for inputting selection data for selecting by the user the desired data file from the plurality of data files stored in the first storing portion, and for communicating the selection to the transmitting unit, a second storing portion for storing the desired data file to which the first identification data is appended and transmitted by the transmitter portion, and for storing second identification data unique to the terminal unit, a reproducing portion for reproducing the desired data file read from the second string portion, and a controlling portion for comparing the first identification data appended to the desired data file read from the second storing portion with the second identification data stored in the second storing portion and for controlling a reproducing operation of the reproducing portion in response to a result of the comparison.