| 摘要 |
PROBLEM TO BE SOLVED: To avoid unauthorized reception of a receiving signal by deducting a part of data to be transmitted from a source to the destination from a multi- address communication medium, transmitting it on safer private medium instead, deducting data received on the multi-address communication medium from the multi-address communication medium, combining the data with the data transmitted on the safe medium and leading out a perfect data message. SOLUTION: A data message is transmitted to an internet service provider computer 3 via the Internet by a source of the data message of a web server 1. Software or hardware for executing dividing and scramble function 4 is included in the computer 3. Divided signals are partially transmitted to a multi- address communication transmitter 5 and partially transmitted on a public telephone exchange 8 between two points. Most part of the data is transmitted toward the multi-address communication transmitters 5, and the data is transmitted on a multi-address medium 6 by the multi-address communication transmitter 5. The data is received from the multi-address communication medium 6 by a multi-address communication receiver 7. |
