The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2010
Filed:
Jun. 10, 2003
Hiromichi Fujisawa, Tokorozawa, JP;
Shojiro Asai, Tokyo, JP;
Minoru Ashizawa, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention discloses a method and system for making losses due to the counterfeiting of RF-ID tags to a minimum, enhancing the reliability of RF-ID tag read-out and improving the overall reliability of the RF-ID tag system. An ID reader for communicating by radio with the RF-ID tag and reading tag data from the RF-ID tag transmits the data read-out results to a terminal management server connected to the ID reader. The terminal management server decodes the error correction signal from the read-out result data, also extracts the identification number section from the tag, and decides whether or not that identification number is valid. When determined to be a valid identification number, an inquiry is made to the system operation server connected over the network to find out if that identification number was previously read out and if that identification number might be counterfeit. The system operation server then refers to the log database, the blacklist database and process transition rule, calculates the probability of counterfeiting and automatically sends a warning message to the related department when there is a high probability of counterfeiting.