Single frequency low power RFID device

Details Single frequency low power RFID device Single frequency low power RFID device

2006-09-29

2009-08-18

Mullen, Thomas J (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S010100, C455S041100

Reexamination Certificate

active

07576657

ABSTRACT:
Methods, systems, and apparatuses for a reader transceiver circuit are described. The reader transceiver circuit incorporates a frequency generator, such as a surface acoustic wave (SAW) oscillator. A reader incorporating the reader transceiver circuit is configured to read a tag at very close range, including while being in contact with the tag. The transceiver can be coupled to various host devices in a variety of ways, including being located in a RFID reader (e.g., mobile or fixed position), a computing device, a barcode reader, etc. The transceiver can be located in an RFID module that is attachable to a host device, can be configured in the host device, or can be configured to communicate with the host device over a distance. The RFID module may include one or more antennas, such as a first antenna configured to receive a magnetic field component of an electromagnetic wave and a second antenna configured to receive an electric field component of an electromagnetic wave. The RFID module may include a detector that is configured to determine if the RFID module is positioned in proximity to an object, such as a RFID tag. The detector may operate as a trigger for the RFID module, to enable or trigger a function of the RFID module.

REFERENCES:
patent: 5675342 (1997-10-01), Sharpe
patent: 5686902 (1997-11-01), Reis et al.
patent: 5995019 (1999-11-01), Chieu et al.
patent: 6070803 (2000-06-01), Stobbe
patent: 6107910 (2000-08-01), Nysen
patent: 6317027 (2001-11-01), Watkins
patent: 6330971 (2001-12-01), Mabry et al.
patent: 6433671 (2002-08-01), Nysen
patent: 6531957 (2003-03-01), Nysen
patent: 6580358 (2003-06-01), Nysen
patent: 6950009 (2005-09-01), Nysen
patent: 7423606 (2008-09-01), Knadle et al.
patent: 2003/0174099 (2003-09-01), Bauer et al.
patent: 2005/0208915 (2005-09-01), Fischer
patent: 2005/0258940 (2005-11-01), Quan
patent: 2007/0008140 (2007-01-01), Saarisalo et al.
Search Report and Written Opinion for International Application No. PCT/US07/63805 mailed Feb. 26, 2008, 10 pages.

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