System and method for optimizing power usage in a radio...

Details System and method for optimizing power usage in a radio... System and method for optimizing power usage in a radio...

G - Physics

01

V

G01V 15/00 (2006.01) H04B 1/59 (2006.01)

Patent

CA 2532875

A radio frequency (RF) communication device is provided comprising means for switching between a low current operating mode and a high current operating mode. The low current operating mode is optimized to conserve power while the RF device is awaiting a wake-up signal from an interrogator. The high current operating mode is optimized to provide antenna matching during backscatter communications so as to maximize the range of backscatter communication between the RF device and the interrogator. Further provided, is a system and method for optimizing power consumption and backscatter range within an RF communication device.

L'invention décrit un dispositif de communication à radiofréquences (RF) qui comprend un moyen de commutation entre un mode de fonctionnement à faible courant et un mode de fonctionnement à courant élevé. Le mode de fonctionnement à faible courant est optimisé pour conserver l'énergie lorsque le dispositif RF est en attente d'un signal de réveil émis par un interrogateur. Le mode de fonctionnement à courant élevé est optimisé pour adapter l'antenne lors des communications de rétrodiffusion de manière à maximiser la gamme des communications de rétrodiffusion entre le dispositif RF et l'interrogateur. Par ailleurs, l'invention décrit un système et un procédé d'optimisation de la consommation électrique et de la gamme de rétrodiffusion dans un dispositif de communication RF.

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