Title:
ISOLATING RFID READER
Document Type and Number:
WIPO Patent Application WO/2011/047237
Kind Code:
A3
Abstract:
Systems and methods for using a multimodal handheld reader (102) are described. The reader can be used to read non electronic labels, passive RFID tags using backscatter modulation techniques and battery based active RFID tags using a single handheld. The reader (102) deploys a multiplexed antenna design (204) and thereby contains a method to read a group of passive RFID tags and at the same time the reader can isolate a single passive RFID tag from amongst a group (103) of passive RFID tags within close proximity. All such passive RFID tags use backscatter modulation techniques and are in the readers own RF zone.
Inventors:
TAVSHIKAR MILIND MURLIDHAR (US)
Application Number:
PCT/US2010/052807
Publication Date:
December 15, 2011
Filing Date:
October 15, 2010
Export Citation:
Assignee:
QUANTUM ID TECHNOLOGIES INC (US)
TAVSHIKAR MILIND MURLIDHAR (US)
TAVSHIKAR MILIND MURLIDHAR (US)
International Classes:
G06K7/00; G06K7/10; H04B10/00
Foreign References:
| US6318636B1 | 2001-11-20 | |||
| US7408456B2 | 2008-08-05 | |||
| US20070096881A1 | 2007-05-03 | |||
| US20050186904A1 | 2005-08-25 | |||
| US6192222B1 | 2001-02-20 |
Attorney, Agent or Firm:
LEHRER, Joel, E. et al. (Exchange PlaceBoston, MA, US)
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