WO2005091889A3 - Method and apparatus for improving the efficiency and accuracy of rfid systems - Google Patents

Method and apparatus for improving the efficiency and accuracy of rfid systems Download PDF

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Publication number
WO2005091889A3
WO2005091889A3 PCT/US2005/006293 US2005006293W WO2005091889A3 WO 2005091889 A3 WO2005091889 A3 WO 2005091889A3 US 2005006293 W US2005006293 W US 2005006293W WO 2005091889 A3 WO2005091889 A3 WO 2005091889A3
Authority
WO
WIPO (PCT)
Prior art keywords
improving
efficiency
accuracy
present
rfid systems
Prior art date
Application number
PCT/US2005/006293
Other languages
French (fr)
Other versions
WO2005091889A2 (en
Inventor
Thorkild Hansen
Michael L Oristaglio
Original Assignee
Seknion Inc
Thorkild Hansen
Michael L Oristaglio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seknion Inc, Thorkild Hansen, Michael L Oristaglio filed Critical Seknion Inc
Priority to AT05723946T priority Critical patent/ATE542186T1/en
Priority to EP05723946A priority patent/EP1743271B1/en
Publication of WO2005091889A2 publication Critical patent/WO2005091889A2/en
Publication of WO2005091889A3 publication Critical patent/WO2005091889A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10079—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/43—Jamming having variable characteristics characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/80—Jamming or countermeasure characterized by its function
    • H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
    • H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/20—Jamming or countermeasure used for a particular application for contactless carriers, e.g. RFID carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/32—Jamming or countermeasure characterized by the infrastructure components including a particular configuration of antennas

Abstract

The present invention relates to a method and apparatus for transmitting a narrow signal beam that allows the precise location of RFID tags to be determined and reduces tag collisions. The present invention further relates to a method and apparatus for combing an RFID reader with an optical source to visualize the interrogation zone of the reader. The present invention also relates to a method and apparatus for improving the efficiency of RFID systems.
PCT/US2005/006293 2004-03-05 2005-02-25 Method and apparatus for improving the efficiency and accuracy of rfid systems WO2005091889A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT05723946T ATE542186T1 (en) 2004-03-05 2005-02-25 METHOD AND APPARATUS FOR IMPROVING THE PERFORMANCE AND ACCURACY OF RFID SYSTEMS
EP05723946A EP1743271B1 (en) 2004-03-05 2005-02-25 Method and apparatus for improving the efficiency and accuracy of rfid systems

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US55035504P 2004-03-05 2004-03-05
US55041104P 2004-03-05 2004-03-05
US60/550,411 2004-03-05
US60/550,355 2004-03-05
US56143304P 2004-04-12 2004-04-12
US60/561,433 2004-04-12
US60353104P 2004-08-20 2004-08-20
US60/603,531 2004-08-20
US61342804P 2004-09-27 2004-09-27
US60/613,428 2004-09-27

Publications (2)

Publication Number Publication Date
WO2005091889A2 WO2005091889A2 (en) 2005-10-06
WO2005091889A3 true WO2005091889A3 (en) 2007-03-29

Family

ID=35056667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/006293 WO2005091889A2 (en) 2004-03-05 2005-02-25 Method and apparatus for improving the efficiency and accuracy of rfid systems

Country Status (4)

Country Link
US (4) US7456726B2 (en)
EP (1) EP1743271B1 (en)
AT (1) ATE542186T1 (en)
WO (1) WO2005091889A2 (en)

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EP1743271A2 (en) 2007-01-17
US20070252687A1 (en) 2007-11-01
WO2005091889A2 (en) 2005-10-06
US20090066481A1 (en) 2009-03-12
US20050212660A1 (en) 2005-09-29
EP1743271B1 (en) 2012-01-18
US20070252677A1 (en) 2007-11-01
EP1743271A4 (en) 2010-10-27
US7456726B2 (en) 2008-11-25
ATE542186T1 (en) 2012-02-15

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