G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 19/07 (2006.01)
Patent
CA 2525110
This publication discloses a remote identifier, a reader, and a method for activating a desired remote identifier. The remote identifier (2) includes a microcircuit (7), in which there is a memory and means for processing a radio- frequency signal, an antenna (6) connected to the microcircuit (7), by means of which both the signal and also electric power for the operating voltage of the microcircuit (7) can be received. According to the invention, a component (3), the electrical properties of which change due to the effect of infrared, or visible light, is electrically connected to the microcircuit (7) of the remote identifier and in the microcircuit (7) there are means, by which the combined effect of a change in the radio-frequency signal and the electrical component (3) can be expressed by a correlation method for the signals, in order to activate the remote identifier (2) for two-way data transmission.
L'invention concerne un identifiant à distance, un lecteur et un procédé pour activer un identifiant à distance donné. Cet identifiant à distance (2) comporte un microcircuit (7), doté d'une mémoire et d'un élément pour traiter un signal de fréquence radio, une antenne (6) reliée au microcircuit (7), laquelle permet de recevoir à la fois le signal et du courant électrique pour la tension de fonctionnement du microcircuit (7). Selon l'invention, un composant (3), dont les propriétés électriques changent sous l'effet d'une lumière visible ou infrarouge, est électriquement relié au microcircuit (7) de l'identifiant à distance. Le microcircuit (7) contient des éléments pour exprimer l'effet combiné d'un changement de signal de fréquence radio et de composant électrique (3) selon un procédé de corrélation pour les signaux, afin d'activer l'identifiant à distance (2) pour une transmission de données bidirectionnelle.
Borden Ladner Gervais Llp
Intellectual Ventures Fund 65 Llc
Valtion Teknillinen Tutkimuskeskus
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