Electronic system for market research or social study data

摘要

The electronic system uses television receivers (1) assigned to each member of study panel, connected to a central device (3) with a control (4) at least one memory (5) and an interface (6) for transmission and reception of data. The control uses operating software for transmission of audio and video material to each television receiver, for input of response data from each member of the panel, entered in the memory of the central device.