Patent ID: 11922265
Assignee: INTELLIGENT MATERIAL SOLUTIONS, INC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A system for authentication, comprising:
a card comprising an infrared-blocking material capable of blocking a plurality of near infrared wavelengths, and at least one phosphor particle capable of absorbing at least one near-infrared wavelength; and
a card reader comprising a light emitting device, a near-infrared detector, and a processor, the processor configured to:
cause the card reader to emit a first wavelength of near infrared light to be received by the detector with a first signal strength;
determine the presence of the card based on a comparison of the first signal strength and the signal strength of the received after a card has been inserted; and
authenticate the card by:
causing the card reader to emit at least one second wavelength;
receiving at least one third wavelength at the detector, each of the at least one third wavelengths being emitted by the at least one phosphor particle; and
identifying a location on the card of the at least one phosphor particle, and identifying a rise time of the at least one phosphor particle, a decay time of the at least one phosphor particle, or both.