Patent ID: 9203476
Filing Date: 2015-12-01
Classification: G01C,H04B,H04L,H04W

Abstract:
1. A method for code communication, comprising: sensing, by at least a magnetic sensor of a handheld wireless communication device, a sequence of polarities of a short-range magnetic field; determining, by a processor of the handheld wireless communication device, a code from the sensed sequence of polarities, wherein the code provides access to a secure system and each bit of the code is represented by at least six different symbols, each symbol representing a respective polarity and a respective one of at least three dimensions of the magnetic field; transmitting, by the handheld wireless communication device, the code received from the short-range magnetic field and identification information to the secure system via a radio communication to receive access to the secure system, wherein the access is personalized based on at least the identification information; and maintaining or validating the access to the secure system when handheld wireless communication device is within range of the short-range magnetic field.