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Class Information
Number: 380/248
Name: Cryptography > Cellular telephone cryptographic authentication > Visiting center
Description: Subject matter wherein authorization to a cellular system other than the subscriber’s home system is processed through an intermediary.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7590246 Authentication between a cellular phone and an access point of a short-range network Sep. 15, 2009
7564825 Method of validated communication Jul. 21, 2009
7555781 Security component for a computing device Jun. 30, 2009
7548981 Biometric authentication over wireless wide-area networks Jun. 16, 2009
7529935 Information communication device, information communication system, and computer program product for transmission control May. 5, 2009
7522728 Wireless methods and devices employing steganography Apr. 21, 2009
7522727 Method and apparatus for providing authentication in a communication system Apr. 21, 2009
7515713 Secure generation of temporary mobile station identifiers Apr. 7, 2009
7512234 Providing location data about a mobile entity Mar. 31, 2009
7509675 Non-invasive monitoring of the effectiveness of electronic security services Mar. 24, 2009
7484240 Mechanism to allow authentication of terminated SIP calls Jan. 27, 2009
7448072 Techniques for performing UMTS (Universal Mobile Telecommunications System) authentication using SIP (Session Initiation Protocol) messages Nov. 4, 2008
7424284 Secure network/service access Sep. 9, 2008
7395050 Method and system for authenticating user of data transfer device Jul. 1, 2008
7308099 Device and method for producing an encoded audio and/or video data stream Dec. 11, 2007
7298847 Secure key distribution protocol in AAA for mobile IP Nov. 20, 2007
7272383 System and method for controlling a mobile terminal using a digital signature Sep. 18, 2007
7239865 Proxy authentication for tethered devices Jul. 3, 2007
7187920 Connection service providing system and connection service providing method Mar. 6, 2007
7174456 Fast authentication and access control method for mobile networking Feb. 6, 2007
7127234 Radio LAN access authentication system Oct. 24, 2006
7107051 Technique to establish wireless session keys suitable for roaming Sep. 12, 2006
7065356 Systems and methods for preventing unauthorized use of roaming numbers in a wireless telecommunications system Jun. 20, 2006
7024688 Techniques for performing UMTS (universal mobile telecommunications system) authentication using SIP (session initiation protocol) messages Apr. 4, 2006
7020456 Method and system for authentication of units in a communications network Mar. 28, 2006
7013128 Terminal device and terminal device operation management system and operation management method Mar. 14, 2006
6947725 Mobile authentication system with reduced authentication delay Sep. 20, 2005
6918035 Method for two-party authentication and key agreement Jul. 12, 2005
6915124 Method and apparatus for executing secure data transfer in a wireless network Jul. 5, 2005
6856800 Fast authentication and access control system for mobile networking Feb. 15, 2005
6768903 Method of controlling a channel between a radio terminal and a cellular radiocommunication infrastructure, and access network implementing such a method Jul. 27, 2004
6745326 Authentication process including setting up a secure channel between a subscriber and a service provider accessible through a telecommunications operator Jun. 1, 2004
6690798 Key transforms to discriminate between beams in a multi-beam satellite communication system Feb. 10, 2004
6618584 Terminal authentication procedure timing for data calls Sep. 9, 2003
6587680 Transfer of security association during a mobile terminal handover Jul. 1, 2003
6507908 Secure communication with mobile hosts Jan. 14, 2003
6373949 Method for user identity protection Apr. 16, 2002
6370380 Method for secure handover Apr. 9, 2002
6240514 Packet processing device and mobile computer with reduced packet processing overhead May. 29, 2001
6236852 Authentication failure trigger method and apparatus May. 22, 2001
6201958 Telecommunications system, mobile terminal and method of registration of a terminal with a telecommunications network Mar. 13, 2001
6157826 Authentication key generation method and apparatus Dec. 5, 2000
6141544 System and method for over the air activation in a wireless telecommunications network Oct. 31, 2000
6137885 Method for enabling direct encrypted communication between two terminals of a mobile radio network, and corresponding station and terminal facilities Oct. 24, 2000
6101380 Method of re-using authentication triplets on inter-VLR location updates Aug. 8, 2000
6097817 Encryption and decryption in communication system with wireless trunk Aug. 1, 2000
6058301 Cellular fraud prevention using selective roaming May. 2, 2000
6047071 Network-initiated change of mobile phone parameters Apr. 4, 2000
5991407 Subscriber authentication in a mobile communications system Nov. 23, 1999
5940512 Roaming method capable of improving roaming registration procedure Aug. 17, 1999

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