Patents
Sitemap › H04 - Electric communication technique › H04W - Wireless communication networks › H04W 12 - Security arrangements, e.g. access security or fraud detection; Authentication, e.g. verifying user identity or authorisation; Protecting privacy or anonymity
Patents for H04W 12 - Security arrangements, e.g. access security or fraud detection; Authentication, e.g. verifying user identity or authorisation; Protecting privacy or anonymity (35,296)
11/1994
11/01/1994US5361302 Method for encryption sync compression in an encrypted radio telephone interconnect system
10/1994
10/20/1994CA2112961A1 System for providing access to digitally encoded communications in a distributed switching network
10/18/1994US5357571 Method for point-to-point communications within secure communication systems
09/1994
09/28/1994EP0617566A1 Position registration system of mobile communication terminals
09/21/1994EP0598760A4 A telecommunications system.
09/07/1994CN1091877A Access controlled device for rendering services
09/06/1994US5345595 Apparatus and method for detecting fraudulent telecommunication activity
09/01/1994WO1994019875A1 Authentication key entry in cellular radio system
08/1994
08/24/1994EP0611513A1 Apparatus for detecting and preventing subscriber number cloning in a cellular mobile telephone system
08/17/1994CN1025704C For cellular communication system
08/09/1994US5337345 System for securing mobile telephones from unauthorized transmission
08/02/1994US5335278 Fraud prevention system and process for cellular mobile telephone networks
08/02/1994US5335265 Apparatus for detecting and preventing subscriber number cloning in a cellular mobile telephone system
07/1994
07/27/1994EP0607767A1 Access controlled device for rendering services
07/27/1994EP0542900A4 Portable office cordless telephone
07/20/1994EP0606408A1 Method for personalisation of an active card
07/12/1994US5329591 Transmitter identification and validation system and method
07/12/1994US5329573 Arrangement for obtaining authentication key parameters in a cellular mobile telecommunications switching network
07/06/1994EP0604911A2 Authentication and communication terminal and communication processing unit using the method
06/1994
06/29/1994EP0565528A4 Secure over-the-air registration of cordless telephones
06/28/1994US5325432 Method for updating encryption key information in communication units
06/22/1994EP0602319A1 Method for securing a mobile wireless apparatus against unauthorized use
06/14/1994US5321737 Cordless telephone communication system having base stations with memory for quick access to information
06/14/1994US5321735 Method and apparatus for selective real time authorization and billing of calls in a public telepoint system
06/09/1994WO1994013115A1 Method of checking the identity of a subscriber equipment
06/07/1994US5319711 Wireless device for verifying identification
06/01/1994EP0598760A1 A telecommunications system
05/1994
05/26/1994WO1994011959A1 An apparatus and method for detecting potentially fraudulent telecommunication activity
05/18/1994EP0571503A4 Method and apparatus for controlling access to a communication system
05/11/1994EP0592608A4 A method and system for handling improper registrations
05/10/1994CA2102391A1 Access controlled device for rendering services
05/03/1994US5309501 Arrangement for detecting fraudulently identified mobile stations in a cellular mobile telecommunications network
04/1994
04/20/1994EP0592608A1 A method and system for handling improper registrations
04/13/1994CN1024241C Method of carrying out authentication check between base station and mobile station in mobile radio system
04/12/1994US5303285 Wireless telephone service access method
04/05/1994US5301357 Method and system for handling improper registrations
04/05/1994US5301234 Radiotelephone installation for prepayment operation with security protection
03/1994
03/30/1994EP0589757A1 Telecommunications installation with secured downloading of prepayment means and method for the download
03/24/1994DE4242151C1 Protecting mobile radio, e.g. telephone, against unauthorised use - comparing authentication parameter from input code to stored parameter, only allowing use if they match.
03/22/1994US5297189 Wireless telephone service subscription data user access method
03/17/1994WO1994006219A1 Location updating in the cellular radio network
03/16/1994EP0586655A1 Communication system with call charge information stored in handset
03/08/1994US5293423 Synchronizing method in a mobile radio system
03/03/1994WO1994005128A1 Position registration system of mobile communication terminals
03/02/1994EP0584725A1 Method of authentication with improved security for secrecy of authentication key
03/02/1994EP0584667A1 Wireless device and means for verifying identification
02/1994
02/23/1994EP0583452A1 Telecommunication system and subscriber authentication method.
02/22/1994US5288978 Mutual authentication system and method which checks the authenticity of a device before transmitting authentication data to the device
02/16/1994CN1082274A Method and apparatus for maintaining continuous synchrounous encryption and decryption in a wireless communication system throughout a hand-off
02/02/1994CN1081548A Communications system with call charge information stored in handset
01/1994
01/30/1994CA2099812A1 System for securing mobile telephones from unauthorized transmission
01/25/1994US5282250 Method of carrying out an authentication check between a base station and a mobile station in a mobile radio system
12/1993
12/28/1993US5274368 Method and apparatus for controlling access to a communication system
12/22/1993CN1023283C Synchronizing method in mobile radio system
12/09/1993WO1993025021A1 Continuous synchronous encryption and decryption in a wireless communications system throughout handoffs
12/01/1993EP0571503A1 Method and apparatus for controlling access to a communication system
10/1993
10/26/1993US5257408 Method for seeking a communication system
10/20/1993EP0565528A1 Secure over-the-air registration of cordless telephones
10/13/1993EP0565281A2 Information handling system incorporated with an information security measure
09/1993
09/29/1993WO1993020644A1 Communication system with call charge information stored in handset
09/28/1993US5249230 Authentication system
09/21/1993CA1322397C System for the extended provision of cellular mobile radiotelephone service
09/07/1993US5243653 Method and apparatus for maintaining continuous synchronous encryption and decryption in a wireless communication system throughout a hand-off
09/02/1993WO1993017529A1 Telecommunication system and subscriber authentication method
08/1993
08/31/1993US5241598 Rolling key resynchronization in cellular verification and validation system
08/24/1993US5239294 Method and apparatus for authenication and protection of subscribers in telecommunication systems
08/17/1993US5237612 Cellular verification and validation system
08/04/1993EP0515364A4 Method and apparatus for providing privacy/security in a communications system
08/03/1993US5233656 Telephone installation for the remote loading of telephone rental data of an independent station
07/1993
07/07/1993EP0313576B1 Gateway system and method for interconnecting telephone calls with a digital voice protected radio network
06/1993
06/22/1993US5222248 Call hand-off with user selectable site switching
06/10/1993WO1993011646A1 Apparatus for detecting and preventing subscriber number tumbling in a cellular mobile telephone system
06/02/1993EP0544460A2 Arrangement for obtaining authentication key parameters in a cellular mobile telecommunications network
06/02/1993EP0544449A1 Arrangement for detecting fraudulently identified mobile stations in a cellular mobile telecommunications network
05/1993
05/28/1993CA2078196A1 Arrangement for obtaining authentication key parameters in a cellular mobile telecommunications network
05/26/1993EP0542900A1 Portable office cordless telephone
05/13/1993WO1993009640A1 Apparatus for detecting and preventing subscriber number cloning in a cellular mobile telephone system
05/05/1993CN1020530C Communication system
04/1993
04/21/1993CN1020356C Simulative interference video signals generator
04/20/1993US5204902 Cellular telephony authentication arrangement
04/15/1993WO1993007697A1 Method for personalisation of an active card
03/1993
03/30/1993US5199072 Method and apparatus for restricting access within a wireless local area network
03/23/1993CA1314956C Method and apparatus for controlling access to a communication system
03/17/1993EP0532231A2 Service provision authentication protocol
03/17/1993EP0532227A2 Cellular telephony authentication arrangement
03/17/1993EP0532226A2 Speech and control message encryption in cellular radio
02/1993
02/18/1993WO1993003585A1 A telecommunications system
02/18/1993WO1993003584A1 A method and system for handling improper registrations
02/10/1993EP0526764A2 Method for contacting a subscriber of a mobile telephone network
01/1993
01/21/1993DE4123455A1 Control command transmission system for accessing stored telephone calls - uses password to prevent unauthorised accessing of stored calls
12/1992
12/16/1992EP0518343A2 Method of determining a temporary subscriber number (TMSI) in a subscriber database
12/15/1992US5172414 Speech and control message encrypton in cellular radio
12/02/1992EP0515364A1 Method and apparatus for providing privacy/security in a communications system
11/1992
11/26/1992WO1991001067A3 Method for authentication and protection of subscribers in telecommunication systems
10/1992
10/27/1992CA1309466C Method of supervising mobile telephone subscriptions in a mobile telephone system
10/06/1992US5153919 Service provision authentication protocol
09/1992
09/30/1992EP0506637A2 Cellular verification and validation system
09/15/1992US5148485 Encrypton system for digital cellular communications
09/09/1992EP0502446A2 Apparatus to secure operations in a mobile radio network
09/03/1992WO1992015056A1 Method and apparatus for controlling access to a communication system
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