System and method for reading data stored in a radio frequency data carrier

A method and system for reading information stored in a data carrier are presented. The data carrier comprises a collection of circuitries defining together a predetermined information code. Each circuitry includes: (a) a code circuit configured to have a certain RF frequency response to a powering...

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Bibliographic Details
Main Authors YOGEV, AMNON, DUKLER, SHLOMO
Format Patent
LanguageEnglish
French
German
Published 06.07.2011
Subjects
ALARM SYSTEMS
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
ORDER TELEGRAPHS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:A method and system for reading information stored in a data carrier are presented. The data carrier comprises a collection of circuitries defining together a predetermined information code. Each circuitry includes: (a) a code circuit configured to have a certain RF frequency response to a powering signal and thus defining a certain symbol of the predetermined information code, and (b) a delay circuit configured to provide a phase delay of a predetermined value to said powering signal associated with the respective code circuit to thereby define a location of this symbol in the information code. The data carrier further comprises a power unit operable to produce said powering signal to actuate the delay circuit. The system comprises a magnetic field source for actuating the power unit of the data carrier, and an RF detector operating for sensing the RF responses of the RF data carriers, and analyzing frequency of the responses and their sequential appearance to identify the code pattern stored in the RF data carrier.
Bibliography:Application Number: EP20080156795