Multimediales System, tragbare Bedieneinrichtung und Kommunikationsmodul zur Verwendung in diesem System

摘要

The multi-media system has a multi-media display device (50), a base station (10) with an open interface. This is associated with an interchangeable access control module and a communications module (20), coupled to the open interface and cooperating with a portable operating device. The base station can be provided by a set-top box associated with a television receiver used as the display device. Thee communications module incorporates a modem and communicates with the portable operating device via a remote-control link. The access control function is provided by a chip card (47) inserted in the operating device or the communications module.