Importance

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Abstract

This application relates to a communications accessory (100) for an electronic device capable of harvesting energy from an electronic device to which it is attached in the field of wireless energy harvesting and communication. The accessory comprises a fixture, an energy store (10), an RF power harvester (12) comprising an electromagnetic field coupler, a data store (6), a wireless communication interface (8), a controller (4) and a user operable activator (2). The accessory can harvest RF energy which is then stored in the energy store (10). The accessory is also operable to communicate a message from the data store (6) in response to activation of the user operable activator (2).

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First Claim