| 摘要 |
PURPOSE: A device for preventing a fake is provided to realize a tag generating a frequency for identifying a protection target by only using an antenna pattern without a semiconductor circuit or a radio originating circuit. CONSTITUTION: An amplification unit(202) amplifies a frequency of an antenna(201). A band filter(203) performs band filtering of the amplified frequency. A signal converter(204) converts the filtered signal into recognizable data. If a tag is detected, a controlling unit(205) generates an authentication signal for authentication a protection target. According to the authentication signal, a warning unit(207) generates an auditory signal for authentication the protection target. |
