Point of use interaction playback device employing energy harvesting from ambient radio frequency communications

A device for playback of dynamic content at a point of user interaction comprising:

• a display;
• a memory device for storing content comprising the dynamic content;
• a processor configured to controllably output the stored content;
• an energy harvesting and conditioning circuit comprising an energy storage element and configured to receive ambient radio frequency energy available at the point of user interaction and charge an energy storage element without use of an external AC or DC power source, wherein the energy storage element is configured to supply power to the display, the memory and the processor to controllably output the stored content, and the number of repetitions of the dynamic content playback is determined based on an amount of power charged in the energy storage element by the ambient energy collecting and storage device, and an amount of power consumed by display of the dynamic content;
• and
• a substrate on which the display, the memory device, the processor and the energy harvesting and conditioning circuit are mounted, the substrate having a top side from which the display is viewable by a user and a bottom side for mounting the substrate at the point of user interaction;
• wherein the device is self-reliant for power using only ambient radio frequency energy harvested via the energy harvesting and conditioning circuit;
• and
• wherein the dynamic content is video content comprising video segments and the processor is configured to output them with pauses and a display of a static image between video segments to conserve stored energy at the device and depending on the rate at which ambient energy is converted by the energy harvesting and conditioning circuit and the rate at which power provided by the energy storage element is consumed during playback.