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:
Mar. 20, 2007
Filed:
May. 21, 2001
Ian Nordman, Söderkulla, FI;
Tero Alamäki, Helsinki, FI;
Marko Vänskä, Espoo, FI;
Mikko Tarkiainen, Espoo, FI;
Norbert Gyorbiró, Helsinki, FI;
Casper Gripenberg, Helsinki, FI;
Ian Nordman, Söderkulla, FI;
Tero Alamäki, Helsinki, FI;
Marko Vänskä, Espoo, FI;
Mikko Tarkiainen, Espoo, FI;
Norbert Gyorbiró, Helsinki, FI;
Casper Gripenberg, Helsinki, FI;
Nokia Corporation, Espoo, FI;
Abstract
The user's Bluetooth device substitutes a pseudonym address for the Bluetooth Device Address (BD_ADDR). The pseudonym address is a randomized version of the BD_ADDR. The pseudonym address is used in all the functions of the Bluetooth device that normally use the BD_ADDR, including the frequency hopping sequence, the device access code, the initialization key in link encryption, the authentication code, and the various packet addresses. In this manner, the user's privacy is protected by preventing the user's identity, routes, and activities from being correlated with his/her device's address. In addition to the Bluetooth standard, the technique also applies to other wireless standards.