Patents Represented by Attorney Dan Steinberg, Patent Agent
  • Patent number: 7199719
    Abstract: 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.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: April 3, 2007
    Inventor: Dan Alan Steinberg