Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Donnie Allen Smith, Jr.0
Date of Patent
November 10, 2009
Patent Application Number
11772382
Date Filed
July 2, 2007
Patent Primary Examiner
Patent abstract
For reducing the frequency with which RFID transponders are read in an RFID system, the RFID system logs a timestamp associated with each read of an RFID transponder along with the tag ID and reader identifier. The timestamp associated with each log entry is monitored with respect to an expiration value so that expired log entries may be identified. When a log entry is determined to be expired, other elements of the RFID system are notified of the associated tag ID and reader identifier, and the storage occupied by the expired log entry is freed.
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