Method and system for item level uhf rfid tag with low frequency power assist

A technology of power source and safety label, which is applied to record carriers, instruments, computing and other directions used by machines, can solve the problem of lack of labels, and achieve the effect of increasing the reading range.

Active Publication Date: 2011-11-16
TYCO FIRE & SECURITY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While implementing combined tags that include EAS (e.g., acoustomagnetic and RFID elements, basic RFID and EAS systems) is becoming more common, aspects of the resulting tags that are not integrated into one system can be used to provide location of beneficial effect
For example, no system currently exists that enables extended RFID tag activation and read range by providing a complementary means of passive RFID chip power source

Method used

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  • Method and system for item level uhf rfid tag with low frequency power assist
  • Method and system for item level uhf rfid tag with low frequency power assist
  • Method and system for item level uhf rfid tag with low frequency power assist

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Embodiment Construction

[0016] Before describing in detail exemplary embodiments in accordance with the present invention, it should be noted that the embodiments primarily incorporate combinations of device components and processing steps directed to implementing systems and methods that detect radio frequency identification (RFID) by using additional antenna circuits. "RFID") tags are powered such that the RFID tags do not solely rely on the RFID reader for activation power. Accordingly, elements of the systems and methods have been shown by conventional notation as appropriate in the drawings, and only those specific details relevant to an understanding of the embodiments of the invention have been shown so as not to be confusing to one of ordinary skill in the art reading the description herein. Details that would be readily apparent are said to obscure the invention.

[0017] Relative terms used herein, such as "first" and "second", "top" and "bottom", etc., may only be used to distinguish one e...

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Abstract

A method and system for increasing the read range of a security tag by supplying an additional antenna system to the tag in order to provide power to a radio frequency identification (''RPID'') chip without the need to rely solely on power from the RFID reader. The security tag includes an RFID chip and a first antenna circuit coupled to the RFID chip where the first antenna circuit is adapted to decode interrogation signals from an RFID reader. The security tag also includes a second antenna circuit coupled to the RFID chip. The second antenna circuit is adapted to induce power from signals received from at least an alternate power source, such as an EAS transmitter, so that the RFID chip can be powered up and activated during an RFID interrogation round.

Description

technical field [0001] The present invention relates generally to electronic security systems, and in particular to increasing RFID Method and system for tag read range. Background technique [0002] Item inquiry systems are common in the art. One type of item interrogation system is an RFID system. RFID systems are used in many different applications including, for example, in retail environments to obtain information related to RFID tagged items. For example, RFID tags can be attached or integrated within a product or product packaging. Using an RFID interrogator (also referred to herein as an "RFID reader"), an RFID tag within the interrogation zone of the interrogator can be activated and provide item-related information (e.g., product descriptor, serial number, etc.) associated with the RFID tag. number, location, etc.). The RFID interrogator may be a fixed, portable or hand-held device. [0003] These RFID tags receive radio frequency ("RF") signals and respond t...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06K19/07
CPCG06K19/0707G06K19/0723
InventorM·埃利克斯连明仁G·M·谢弗
OwnerTYCO FIRE & SECURITY GMBH