The patent points out that networked portable devices which employ infra-red or radio-frequency communication have limitations.

ECONOMIST: The human body as a computer bus

He said two main limitations have held SDR back: the speed at which analogue-to-digital converters turn radio waves into numbers, and computer power.

BBC: SDR can read and understand different kinds of radio waves

For decades, physicists at CERN and elsewhere have been trying to overcome these limitations with antihydrogen, which consists of a single positron orbiting a single antiproton.

ECONOMIST: Antimatter: Gotcha! | The