Broadband cable network for video services has network interface device limiting access of each subscriber to pay services

摘要

The cable network has each subscriber or subscriber group connected via a network interface device (7), used for restricting the data, representing the video services provided via the cable network, supplied to each subscriber. Also included are Independent claims for the following: (a) a network interface device for a broadband cable network; (b) a data transmission method for a broadband cable network