SYSTEM AND METHOD FOR NEAR-FIELD HUMAN-BODY COUPLING FOR ENCRYPTED COMMUNICATION WITH IDENTIFICATION CARDS

摘要

The present invention discloses an apparatus and method for encoding and transmitting data from a transmitter to a receiver using a human body as a transmission medium. The transmitter includes an electric field generator, a data encoder operating by modulating the electric field, and electrodes for coupling an electric field through the human body. The receiver includes demodulators for sensing the electric field carried through the human body and extracting data from the electrodes and physically in contact with or in close proximity to a portion of the human body. An authenticator connected to the receiver processes the encoded data to verify the authenticity of the transmission. The apparatus and methods are used to identify and authorize the originator of the originator. Owners can securely access and deliver goods or services such as distribution of funds, telephone privileges, access to buildings, and life necessities. The cipher provides fast transmission and authentication of the sender and provides a plurality of similar senders with a minimum of forgery potential. Signal processing and digital communication components adjust for variations in the location and location of the sender and receiver and provide the sender with long lifetime and high reliability.