Importance

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Abstract

A commodity registration system includes a non-transitory computer-readable medium having instructions stored thereon. The instructions, when executed by one or more processors, cause the one or more processors to acquire a plurality of reference signals via an antenna at a plurality of positions between a first position and a second position, acquire a plurality of target signals via the antenna at a plurality of positions between the first position and the second position, and refrain from registering the commodity for purchase based on a comparison between a reference phase characteristic of the plurality of reference signals and a target phase characteristic of the plurality of target signals.

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First Claim