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:
Sep. 01, 2015
Filed:
Dec. 23, 2008
Andrea Soppera, Ipswich, GB;
Trevor Burbridge, Ipswich, GB;
Chritian Tutsch, Graz, AT;
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, London, GB;
Abstract
An RFID device such as an RFID tag () and method comprising: storing a current read key and a current ownership key; receiving, from the RFID reader system (), a change read key command and an indication that the RFID reader system () holds the current ownership key; and in response, replacing the current read key with a new current read key enabling the RFID device () to be read by an RFID reader system () holding the new current read key. Also, an RFID reader system () and method for an RFID reader system () to process an RFID device (), comprising: issuing a take ownership command to an RFID device (); receiving a new ownership key from the RFID device (); applying for authorization of the new ownership key; and receiving from the authorization apparatus () the new ownership key and an acknowledgement that may be communicated to the tag as evidence of authorization.