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US Patent 5796827 - System and method for near-field human-body coupling for encrypted communication with identification cards
US Patent Issued on August 18, 1998
Estimated Patent Expiration Date:
November 14, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
November 14, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractAn apparatus and method are disclosed for encoding and transferring data from a transmitter to a receiver, using the human body as a transmission medium. The transmitter includes an electric field generator, a data encoder which operates by modulating the electric field, and electrodes to couple the electric field through the human body. The receiver includes electrodes, in physical contact with, or close proximity to, a part of the human body, for detecting an electric field carried through the body, and a demodulator for extracting the data from the modulated electric field. An authenticator, connected to the receiver, processes the encoded data and validates the authenticity of the transmission. The apparatus and method are used to identify and authorize a possessor of the transmitter. The possessor then has secure access to, and can obtain delivery of, goods and services such as the distribution of money, phone privileges, building access, and commodities. Encryption provides rapid transmission and authentication of the transmitter, and a plurality of similar transmitters, with minimum vulnerability to counterfeit. Signal processing and digital communication components accommodate variations in location and orientation of the transmitter and receiver, and provide transmitters with long life times and high reliability.Other References
| InventorsApplicationNo. 749865 filed on 11/14/1996US Classes:713/182, SYSTEM ACCESS CONTROL BASED ON USER IDENTIFICATION BY CRYPTOGRAPHY380/52, Including particular structure or housing (e.g., display, keyboard)380/265, Combining outputs of shift register455/100, Body attached or connected705/72, Verifying PIN713/168Particular communication authentication techniqueField of Search380/52Including particular structure or housing (e.g., display, keyboard)ExaminersPrimary: Cain, DavidAttorney, Agent or FirmUS Patent References4998279, Method and apparatus for personal verification utilizing nonpredictable codes and biocharacteristicsIssued on: 03/05/1991 Inventor: Weiss5097505, Method and apparatus for secure identification and verification Issued on: 03/17/1992 Inventor: Weiss5131038, Portable authentification system Issued on: 07/14/1992 Inventor: Puhl, et al.5168520, Method and apparatus for personal identification Issued on: 12/01/1992 Inventor: Weiss5361062, Personal security system Issued on: 11/01/1994 Inventor: Weiss, et al.5367572, Method and apparatus for personal identification Issued on: 11/22/1994 Inventor: Weiss5724423Method and apparatus for user authentication Issued on: 03/03/1998 Inventor: Khello International ClassH04L 009/00 |
