Abstract: A back-channel media delivery system that may be used for tracking the number and type of human impressions of media content rendered by the system during the time the media was rendered is provided. The back-channel media delivery system includes a rendering device for rendering media, an environmental sensor for sensing impressions and other environmental variables and a computing device configured to play media on the rendering device, and gather data related to the external states detected by the environmental sensor. The system may include rules that interpret that data and may cause the system to custom select, tailor or control future playback of media on the system.

Abstract: A system and method for tracking a consumer is provided. A consumer is detected at a first location within a vicinity of a content player playing a content item. A unique identification of the consumer is captured, such as a facial image or a Bluetooth signal emitted by a device associated with the consumer in some embodiments. A record is stored indicating the consumer perceived the content item. As the consumer perceives other content items or travels to other locations, the record is updated to reflect the consumer's behavior.