Hand-held electronic device to be used in conjuction with a screen.

摘要

This hand-held electronic device comprises optical reception means (R), a microprocessor (4) able to process the information received, a display (6), a source of electrical energy for powering the various circuits, a keyboard (8), and data storage means (12). …The microprocessor (4) is programmed to enable the user of the device to participate in a televised programme progressing according to a specified timetable by inserting, via the keyboard, his responses to questions posed on the screen whilst the programme progresses. …Application to televised games. ……