Device for participating to a program emitted by a medium

Claim 1

Device for participating in a program emitted by a medium, and being of the type where exact answers on questions are compared with answers provided by a participant operating a keyboard, whereby a signal indicating the correctness of the participant's answers allows information to appear on a display, characterized in that the device substantially comprises the combination of: a receiver-decoder (1-2) for detecting exact answers on questions and the total of exact answers related to the emitted program, a first memory (4) connected to said receiver-decoder for storing the correct answers; a keyboard (6) for typing answers on the aforementioned questions and connected to a second memory (5) via a first locking-unlocking circuit (14) which is controlled by an output of said receiver-decoder; a first comparator (7) intended to mutually compare the contents of said two memories and to count the successful comparisons; a third memory (12) connected to said receiver-decoder for storing the total of exact answers; a fourth memory (11) connected to said first comparator (7) for storing the total of successful comparisons, a second comparator (13) for comparing the contents of said third and fourth memory; and second locking-unlocking circuit (8) connected between said receiver-decoder and a display (10) and controlled by the output of said second comparator (13) for allowing further information to appear on display (10).