Patent AT-E400959-T1: [Translated] METHOD AND DEVICE FOR DISTRIBUTING A MESSAGE OVER A BROADCAST NETWORK

The method involves using a transmitter (1) to send a message in packets (5, 5') to several receivers (2) connected in a broadcast system. Each packet is created with a confidential portion, in which the confidential portion contains a coded message. A certain receiver can only decode the message contained in the confidential portion of the packet. Independent claims are also included for the following: (A) a transmitter; and (B) a receiver.