Minimum voltage radio frequency identification

Details Minimum voltage radio frequency identification Minimum voltage radio frequency identification

H - Electricity

02

H

H02H 9/00 (2006.01) G06K 19/07 (2006.01)

Patent

CA 2280045

A radio frequency identification device (RFID) (100, figure 1) which permits various read and write operations at various voltage levels (figure 2). Certain read operations are permitted as soon as the voltage level in the RFID is sufficient for the circuitry to switch. Errors during such operations are accounted for by retry attempts. Security related operations require higher voltage levels which ensure higher reliability in such operations.

Cette invention se rapporte à un dispositif d'identification de radiofréquences (RFID) (100, figure 1), qui permet d'effectuer diverses opérations d'écriture et de lecture à différents niveaux de tension (figure 2). Certaines opérations de lecture ne sont possibles que pour autant que le niveau de tension dans le dispositif RFID est suffisant pour permettre la commutation du circuit. La prise en compte des erreurs pendant ces opérations se fait par des tentatives de répétition d'essai. Les opérations relatives à la sécurité nécessitent des niveaux de tension plus élevés qui assurent une fiabilité supérieure à ces opérations.

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