Patent ID: 11907795
Assignee: TOSHIBA TEC KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The device according to claim 1, wherein
the comparator is configured to compare, in the dual polarization mode, the radio wave intensity of the first response wave transmitted from the wireless tag with respect to the first carrier wave and the radio wave intensity of the second response wave transmitted from the wireless tag with respect to the second carrier wave transmitted subsequent to the first carrier wave, and
as the comparison result of the comparator, when the radio wave intensity of one of the first response wave or the second response wave is continuously higher than that of the other response wave for a preset number of times or more, the radio wave controller switches the output mode to the single polarization mode in which the carrier wave with respect to the response wave having the higher radio wave intensity is continuously transmitted.