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Method and system for aiming an RFID reader

a technology of rfid and reader, applied in the field of radio frequency identification, can solve the problems of difficult to know which item's rfid tag is being read, unfavorable indiscrimination, and inability to be completely directional, and achieve the effect of facilitating the aiming of the rfid reader and enhancing the discrimination among nearby rfid tags

Inactive Publication Date: 2008-03-13
CHIU LIHU M
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution significantly improves discrimination among nearby RFID tags, allowing users to accurately aim the reader at the desired tag, enhancing both hand-held and stationary RFID reader applications by providing visual feedback and ensuring accurate data retrieval.

Problems solved by technology

One problem with contemporary RFID readers is that they tend to be undesirably indiscriminate with regard to which RFID tag is being read.
Although they are somewhat directional with respect to how the beam is transmitted therefrom, they are not completely directional.
However, if the RFID reader is slightly off (not well aimed), then it may read a nearby RFID tag instead.
Thus, it is sometimes difficult to know which item's RFID tag is being read.
However, if there are other similar items nearby, then the user may have difficulty determining which of the items is the desired one.

Method used

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  • Method and system for aiming an RFID reader
  • Method and system for aiming an RFID reader
  • Method and system for aiming an RFID reader

Examples

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Embodiment Construction

[0018] One exemplary embodiment of the present invention is illustrated in FIGS. 1 and 2. This exemplary embodiment is a hand-held RFID reader assembly 20 that can be carried by a person and used to identify goods and / or retrieve information relating to the goods. For example, hand-held RFID reader assembly 20 can be carried about a warehouse and used to locate goods that are to be shipped out.

[0019] With particular respect to FIG. 1, hand-held RFID reader assembly 20 can comprise a reader 21 having a handle 23 extending downwardly therefrom. An imaging device 22 can be formed to reader 21 such it that images scenes in the direction that the hand-held RFID reader assembly 20 is pointing. A display 24 can be formed to the body such that it is readily viewable by a person holding hand-held RFID reader 20.

[0020] Imaging device 22 can be an electronic imaging device, such as a CCD imager. Imaging device 22 provides an output to display 24. Imaging device 22 and display 24 cooperate to...

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PUM

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Abstract

A method and system for enhancing the accuracy of RFID tag reading is disclosed. An imaging device is used to facilitate aiming of the RFID tag in a manner that mitigates the likelihood of inadvertently reading a nearby RFID tag instead of the desired tag. In this manner, the utility of the RFID reader is substantially enhanced.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. patent application Ser. No. 11 / 073,081, filed Mar. 4, 2005, which is incorporated herein by reference in its entirety for all purposes.TECHNICAL FIELD [0002] The present invention relates generally to radio frequency identification (RFID). The present invention relates more particularly to a method and system for aiming an RFID reader in a manner that enhances the likelihood of reading a desired RFID tag rather than a nearby RFID tag. BACKGROUND [0003] RFID tags for identifying goods are well known. They can be applied to either the goods themselves or to packaging for the goods. RFID tags typically comprise an integrated circuit or chip and an antenna coupled to the chip. Information regarding the goods is stored upon the chip. For example, this information can include identification information, manufacturing information (such as what manufacturing processes have already been performed and / or...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06K7/10
CPCG06K7/0008G06K17/0025G06K7/10386
Inventor CHIU, LIHU M.
Owner CHIU LIHU M