SYSTEM AND METHOD FOR SUPPORTING MULTIPLE READER-TAG CONFIGURATIONS USING MULTI-MODE RADIO FREQUENCY TAG

Title:

SYSTEM AND METHOD FOR SUPPORTING MULTIPLE READER-TAG CONFIGURATIONS USING MULTI-MODE RADIO FREQUENCY TAG

Document Type and Number:

WIPO Patent Application WO2005001744

Kind Code:

A3

Abstract:

A system, apparatus and method for supporting multiple reader-tag configurations and reader-tag distances using a single multi-mode tag. A multi-mode radio frequency (RF) transponder (300) is provided, which includes operational tag circuitry (308, 332) configured to provide information in response to being activated by a reader device(s) (118). Multiple antenna circuits (306, 330) are coupled to the operational tag circuitry (308, 332), where each of the antenna circuits (306, 330) is configured to operate at a different reader-tag distance. At least one disabling circuit (310, 344) is coupled to the operational tag circuitry (308, 332) and to at least one of the antenna circuits (306, 330), where the disabling circuit (310, 344) is configured to disable operation of at least one of the antenna circuits (306, 330) to which it is coupled.

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Inventors:

HUOMO HEIKKI (FI)

Application Number:

PCT/IB2004/002124

Publication Date:

March 23, 2006

Filing Date:

June 21, 2004

Export Citation:

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Assignee:

NOKIA CORP (FI)
NOKIA INC (US)

International Classes:

G06K19/07; G06K19/073; (IPC1-7): H04Q

Foreign References:

US5842118A	1998-11-24
US3938044A	1976-02-10

Other References: