RFID tag reader with tag location indicated by visible light beam

Provided are radiofrequency identification (RFID) tag readers having visible light beams to visually indicate the location of an RFID tag. In one embodiment, the RFID reader can electronically determine the location of an RFID tag. The RFID reader has a visible laser scanner that is controlled to ta...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: STEINBERG DAN A
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Provided are radiofrequency identification (RFID) tag readers having visible light beams to visually indicate the location of an RFID tag. In one embodiment, the RFID reader can electronically determine the location of an RFID tag. The RFID reader has a visible laser scanner that is controlled to target the RFID tag, based on the electronic location data. Hence, the user will see a laser beam point toward the RFID tag location. In another embodiment, the RFID tag reader has a directional RF interrogating beam, and a visible light beam that overlaps with the RF interrogating beam. The visible light beam indicates the volume of space where the RFID tag reader can detect RFID tags. The size of the visible light beam can be adjusted to be bigger for more sensitive tags (e.g. active tags) or smaller for less sensitive tags. (e.g. passive tags), or adjusted for RF output power.