terminal equipment tv gps with regional restrictions.

摘要

A control system access to video signal, comprising a control (12) client access, operable at a customer location and having: an inlet (36) signal, for receiving at least one video signal from a distant or remote source; a processor (44, 46) of video signal, operably connected to receive video signals from the signal input; conditional access device (48) operatively connected to video signal processor; a signal output operably connected to the processor video signal and provides an output signal usable video only when the conditional access device (48) authorizes access to one or more video signals from the remote source; a receiver (36) GPS signal, operable at the customer location to receive position information from remote sources and operably connected to the conditional access device (48), such that the conditional access device authorizes access only if the GPS signal receiver receives signals consistent with the fact that the access control client is in an authoritative position; and a comparator (442) regions, for comparing a code (438) region received with the at least one video signal from the remote source, with an index (440) region stored in the customer's location and amenable to be operated to output data comparator output region, such that the region code is representative of a geographic region authorized to receive a signal and the region index is representative of a geographic region in which it is located control client access, having different region codes for different geographic regions, so that at least some of the region codes excluding access outside of geographical regions corresponding to said codes; yy in which the conditional access device (48) receives the output of comparator regions and conditions access to a (s) given (s) of the video signals authorized for an access region in which it is located access control client, and wherein the comparator (442) regions and conditional access device (48) are operable together to prevent customers located at the customer location to access video signals they have regional codes that exclude access in the region where access control client is located.