DATA PROCESSING SYSTEM, DATA PROCESSING METHOD, AND DATA PROCESSOR

摘要

A CPU (12) of a data transmitter (10) crates simple copy control information roughly defining the copy control status of data to be transmitted according to minute copy control information defining the copy control status of the data, adds the simple copy control information to the packet header of a data packet for transmitting the data, add the minute copy control information to the data, and transmits the simple and minute copy control information along with the data from an input/output interface (16) through a transmission line (30) to a data receiver (20). A CPU (22) of the data receiver (20) analyzes the copy control status of the data contained in the data packet on the basis of the simple and minute copy control information contained in the data packet, and conducts copy control of the data by means of a media access section (26) according to the results of the analysis.