RFID tag data retention verification and refresh

Methods, systems, and apparatuses for monitoring and refreshing data stored in radio frequency identification (RFID) tags are described. A voltage margin for data stored in memory of a tag is checked. If the voltage margin has decreased to an undesirable level, the data stored in the tag is refreshe...

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Bibliographic Details
Main Authors DRAGO RANDALL ALLEN, HOCKEY THEODORE, PFEIFER JONATHAN
Format Patent
LanguageChinese
English
Published 27.05.2009
Subjects
ALARM SYSTEMS
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HANDLING RECORD CARRIERS
INFORMATION STORAGE
ORDER TELEGRAPHS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SELECTING
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
STATIC STORES
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Summary:Methods, systems, and apparatuses for monitoring and refreshing data stored in radio frequency identification (RFID) tags are described. A voltage margin for data stored in memory of a tag is checked. If the voltage margin has decreased to an undesirable level, the data stored in the tag is refreshed.
Bibliography:Application Number: CN2007817067