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AssigneeBrother Kogyo Kabushiki Kaisha
InventorsTakuya Nagai, Yuji Kiyohara
Estimating the term…
A radio-frequency tag communication device permitting a radio-frequency tag communication system to have a sufficiently large area of communication, with a minimum required number of interrogators. The radio-frequency tag communication device includes a transmission control portion operable to control transmission of a transmitted signal, so as to prevent overlapping an area of communication of the radio-frequency tag communication device and an area of communication of another radio-frequency tag communication device, making it possible to maximize a spacing distance between the adjacent radio-frequency tag communication devices, and to effectively prevent concurrent receptions of the transmitted signals by the plurality of radio-frequency tags. Namely, the radio-frequency tag communication device permits the radio-frequency tag communication system to have a sufficiently large area of communication with a minimum required number of interrogators.
A radio-frequency tag communication device arranged to transmit a transmitted signal toward a radio-frequency tag, and to receive a reply signal transmitted from the radio-frequency tag in response to the transmitted signal, for communication with the radio-frequency tag, said radio-frequency tag communication device comprising:
A radio-frequency tag detecting system comprising:
Dependencies are inferred from the claim text.