Patent ID: 9256820
Filing Date: 2016-02-09
CPC Classification: G06K,H04L

Claim Text:
1. A method for managing a data transfer system including a plurality of peripheral devices, a central base, and radio-frequency communication means for enabling data to be transferred between said peripheral devices and said central base, said central base including an antenna tuned to a predetermined frequency, said peripheral devices each having a double-loop antenna, said double-loop antenna having a first loop handling transmission of a radio-frequency signal and a second loop handling reception of a radio-frequency signal, said first and second loops configured to have zero mutual impedance therebetween, said method comprising at said peripheral devices, recovering energy, transferring at least a portion of said recovered energy to said central base via said radio-frequency communication means, and synchronizing radio frequency signals transmitted by said double-loop antennas, wherein synchronizing radio frequency signals includes in response to triggering of communication from a peripheral device to said central base, implementing a listening phase using a second loop to detect a radio-frequency signal transmitted by said central base, and at least one of in response to detecting a radio-frequency signal transmitted by said central base, causing said peripheral device to use said detected radio-frequency signal to transmit, to said central base, a radio-frequency signal that is synchronous and in phase with said detected radio-frequency signal, and in response to detecting an absence of a radio-frequency signal transmitted by said central base, causing said peripheral device to transmit a radio-frequency signal at said predetermined frequency, and wherein synchronization further includes, in response to receiving a radio frequency signal transmitted by said peripheral device at said predetermined frequency, causing said central base to recover said received radio-frequency signal and to re-transmit a radio-frequency signal at said predetermined frequency to said peripheral devices, whereby said synchronization of said radio-frequency signals enables a simultaneous energy transfer from said peripheral devices to said central base while avoiding mutually destructive effects between said radio-frequency signals.