Patent ID: 9496936
Filing Date: 2016-11-15
CPC Classification: G07C,H04B

Claim Text:
1. A method comprising: initiating a communication session with a device; performing a first validation by comparing a first set of signals transmitted in series from antennas of the device to a second set of signals transmitted in parallel from the antennas and determining whether or not the second set of signals is validated based on a result of the comparing the first set of signals to the second set of signals; determining, as a result of the first validation, that the second set of signals is validated based on a positive result of the comparing of the first set of signals to the second set of signals; performing a second validation by using the result of the first validation, comparing a third set of signals transmitted in series from the antennas of the device to a fourth set of signals transmitted in parallel from the antennas, where the third set of signals is generated by varying a characteristic of the first set of signals, and determining whether or not the fourth set of signals is validated based on a result of the comparing the third set of signals to the fourth set of signals; determining, as a result of the second validation, that the fourth set of signals is validated based on a positive result of the comparing of the third set of signals to the fourth set of signals; and maintaining the communication session with the device by using the result of the second validation.