Communicating via a body-area network

Abstract

In a first example of “Body-Area Networking” (“BAN”), a user wishing to access his electronic device ingests a small pill carrying a transmitter. The transmitter's signal carries an identification code that traverses the user's BAN and is read by the device. If the device recognizes that identification code as authenticate, then the device grants the user the desired access. In another example, the user again swallows a transmitter. When the user shakes hands with another person, the signal originating at the ingested transmitter is carried across the BAN of the first user, travels across the handshake to the BAN of the second user, then traverses the second user's BAN to her device. In a third example, a media player transmits audio information across the BAN to a headset worn by the user. The headset receives the signal, demodulates it, and renders the audio to the user.

Dependencies are inferred from the claim text.