| 摘要 |
Method for the transmission and reception of conditional access programmes controlled by the same operator. According to the invention, specific control words (MCSi) are created for various programmes belonging to the same operator based on a root control word corresponding to said operator. The access pass control messages comprise a portion common to all the programmes controlled by the same operator and a portion specific to each programme. The method of the invention is for use in television, radio, data transmission, messaging and the like. |
