Tag selection type optical RFID tag depending on presence or not of visible light

A tag selection type optical radio frequency identification (RFID) tag depending on presence or not of visible light includes a photodiode configured to convert a visible light-type signal transmitted from a reader into an electrical signal, a tag integrated circuit (IC) configured to read informati...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Lee, Sangmok, Kang, Yanggi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A tag selection type optical radio frequency identification (RFID) tag depending on presence or not of visible light includes a photodiode configured to convert a visible light-type signal transmitted from a reader into an electrical signal, a tag integrated circuit (IC) configured to read information on the visible-light type signal using an analog digital converter (ADC) or comparator connected to the photodiode to receive the electrical signal therefrom, configured to be operated using energy obtained by converting a radio frequency (RF) signal received from the reader, to return a value determined to correspond to information to the reader, and configured to transmit stored data according to a command obtained by demodulating the electrical signal of the photodiode to the reader, and an antenna configured to facilitate reception of the RF signal by the tag IC or to facilitate transmission of the value and the data from the tag IC.