Authentication for near field communications
First Claim
1. A system for use in a near field communications system for authenticating, at a near field communications receiver, a user of a near field communications transmitter, the system comprising:
- a receiver device comprising a first data receiver and a second data receiver, each configured to receive a signal comprising a first unique identifier from a near field communications transmitter, the first unique identifier indicating a predetermined pattern of movement of the near field communications transmitter, the predetermined pattern of movement specifying a pattern of movement in and out of range of the near field communications receiver and a length of time that the near field communications transmitter spends within range for communication with the near field communications receiver;
a received signal strength indicator configured to measure a signal strength of the received signal and to store the signal strength in a status register as one of three or more discrete levels;
a signal strength tracker configured to track a variation with time of the signal strength of the received signal and to convert the variation with time into a second unique identifier that indicates an actual pattern of movement of the near field communications transmitter; and
a comparator configured to compare the received first unique identifier and the second unique identifier and to output a signal indicating the result of said comparison,wherein the user is authenticated if the signal indicating the result of said comparison indicates that the first unique identifier matches the second unique identifier.
1 Assignment
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Accused Products
Abstract
Methods, computer program products, and systems for use in near field communications systems for authenticating at a near field communications receiver, a user of a near field communications transmitter. The system includes a data receiver for receiving a signal comprising a first unique identifier from a near field communications transmitter. The system also includes a received signal strength indicator for measuring a signal strength of the received signal. The system further includes a signal strength tracker for tracking a variation with time of the signal strength of the received signal and converting the variation with time into a second unique identifier. The system further includes a comparator for comparing the received first unique identifier and the tracked and converted second unique identifier and for outputting a signal indicating the result of the comparison. The user is authenticated if the signal indicates that the first and second identifiers correlate correctly.
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Citations
15 Claims
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1. A system for use in a near field communications system for authenticating, at a near field communications receiver, a user of a near field communications transmitter, the system comprising:
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a receiver device comprising a first data receiver and a second data receiver, each configured to receive a signal comprising a first unique identifier from a near field communications transmitter, the first unique identifier indicating a predetermined pattern of movement of the near field communications transmitter, the predetermined pattern of movement specifying a pattern of movement in and out of range of the near field communications receiver and a length of time that the near field communications transmitter spends within range for communication with the near field communications receiver; a received signal strength indicator configured to measure a signal strength of the received signal and to store the signal strength in a status register as one of three or more discrete levels; a signal strength tracker configured to track a variation with time of the signal strength of the received signal and to convert the variation with time into a second unique identifier that indicates an actual pattern of movement of the near field communications transmitter; and a comparator configured to compare the received first unique identifier and the second unique identifier and to output a signal indicating the result of said comparison, wherein the user is authenticated if the signal indicating the result of said comparison indicates that the first unique identifier matches the second unique identifier. - View Dependent Claims (2, 3, 4, 5)
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6. A method for use in a near field communications system for authenticating, at a near field communications receiver, a user of a near field communications transmitter, the method comprising:
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receiving, at a receiver device that includes a first data receiver and a second data receiver, a signal comprising a first unique identifier from a near field communications transmitter, the first unique identifier indicating a predetermined pattern of movement of the near field communications transmitter, the predetermined pattern of movement specifying a pattern of movement in and out of range of the near field communications receiver and a length of time that the near field communications transmitter spends within range for communication with the near field communications receiver, the first data receiver using phase modulation and the second data receiver using amplitude modulation; measuring a signal strength of the received signal and storing the signal strength in a status register as one of three or more discrete levels; tracking a variation with time of the signal strength of the received signal and converting the variation with time into a second unique identifier that indicates an actual pattern of movement of the near field communications transmitter; comparing the received first unique identifier and the second unique identifier and outputting a signal indicating the result of the comparison; and authenticating the user if the signal indicating the result of said comparison indicates that the first unique identifier matches the second unique identifier. - View Dependent Claims (7, 8, 9, 10)
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11. A computer program product for use in a near field communications system for authenticating, at a near field communications receiver, a user of a near field communications transmitter, the computer program product comprising:
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a non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising; computer readable program code configured for; receiving, at a receiver device that includes a first data receiver and a second data receiver, a signal comprising a first unique identifier from a near field communications transmitter, the first unique identifier indicating a predetermined pattern of movement of the near field communications transmitter, the predetermined pattern of movement specifying a pattern of movement in and out of range of the near field communications receiver and a length of time that the near field communications transmitter spends within range for communication with the near field communications receiver, the first data receiver using phase modulation and the second data receiver using amplitude modulation; measuring a signal strength of the received signal and storing the signal strength in a status register as one of three or more discrete levels; tracking a variation with time of the signal strength of the received signal and converting the variation with time into a second unique identifier that indicates an actual pattern of movement of the near field communications transmitter; comparing the received first unique identifier and the second unique identifier and outputting a signal indicating the result of the comparison; and authenticating the user if the signal indicating the result of said comparison indicates that the first unique identifier matches the second unique identifier. - View Dependent Claims (12, 13, 14, 15)
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Specification