Abstract: A monitoring device (1) comprising a basic set of audience research data retrieval units (7, 9) which are compatible with a broad range of AV appliances reproducing AV contents like TV sets (3). The data retrieval units are a audio watermark retrieval unit (9) and an audio signal sampling unit (7). For easy adaptation to particular AV installation, the monitoring device (1) is provided with internal and external connectors so that specialized modules can be integrated.

Abstract: A monitor (10) for capturing audience research data from a computer (2-8) having AV presentation capability is attached to the computer by a connector (12). The connector (12) allows to download software stored in the monitor (10), The software watches AV signals played back by the computer and furnishes data the AV signals to the monitor (12). Optionally, or instead of the software, the data detectable on the connector (10) may be analyzed if they relate to AV signals played back.

Abstract: A monitor (10) for capturing audience research data from a computer (2-8) having AV presentation capability is attached to the computer by a connector (12). The connector (12) allows to download software stored in the monitor (10), The software watches AV signals played back by the computer and furnishes data the AV signals to the monitor (12). Optionally, or instead of the software, the data detectable on the connector (10) may be analyzed if they relate to AV signals played back.

Abstract: The present disclosure relates to a method for monitoring the viewing of video content transmitted via a first wireless link (70) to a mobile terminal (200), in particular to a mobile telecommunication device, includes the steps of: within the mobile terminal (200) automatically gathering information relating to the viewing of the video content; forwarding the gathered information to an interface (210) of the mobile terminal (200), the interface (210) allowing for sending data via a second wireless link (50); and transmitting the information to a data collection center (60) via the second wireless link (50). Therefore, the information is directly gathered within the mobile terminal (200), i.e. the integrity of the gathered data is not affected by the video display and audio playback means used. The transmission of the gathered information by means of a wireless link (50) allows for an instant (or short-term) analysis of the data at the data collection center.

Abstract: A monitoring device (1) comprising a basic set of audience research data retrieval units (7, 9) which are compatible with a broad range of AV appliances reproducing AV contents like TV sets (3). The data retrieval units are a audio watermark retrieval unit (9) and an audio signal sampling unit (7). For easy adaptation to particular AV installation, the monitoring device (1) is provided with internal and external connectors so that specialized modules can be integrated.