| 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) |
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| 08/06/1992 | WO1992013416A1 Interactive roamer contact system for cellular mobile radiotelephone network |
| 08/05/1992 | EP0497203A2 Interactive roamer contact system for cellular mobile radiotelephone network |
| 07/14/1992 | US5131038 Portable authentification system |
| 07/01/1992 | WO1992012584A1 Secure over-the-air registration of cordless telephones |
| 06/25/1992 | WO1992010913A1 Cordless telephone system |
| 06/09/1992 | US5121391 Subscriber RF telephone system for providing multiple speech and/or data singals simultaneously over either a single or a plurality of RF channels |
| 06/02/1992 | US5119375 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 05/14/1992 | WO1992008325A1 Call hand-off with user selectable site switching |
| 04/22/1992 | EP0481714A2 Identification of subscribers in a cellular telephone network |
| 04/15/1992 | EP0480833A1 Radio telephone installation with secure prepayment service |
| 04/08/1992 | EP0479617A2 Mutual authentication system and method |
| 04/01/1992 | CN1059999A Encryption system for digital cellular communications |
| 02/26/1992 | CN1059058A Authentication system for digital cellular communications |
| 02/25/1992 | US5091942 Authentication system for digital cellular communications |
| 02/07/1992 | WO1992003007A1 Portable office cordless telephone |
| 02/05/1992 | CN1058499A Resynchronization of encryption systems upon handoff |
| 01/24/1992 | WO1992002087A1 Authentication system for digital cellular communications |
| 01/21/1992 | WO1992002089A1 Encryption system for digital cellular communications |
| 01/21/1992 | WO1992002088A1 Resynchronization of encryption systems upon handoff |
| 01/17/1992 | WO1992002103A1 Method for authentication and protection of subscribers in telecommunication systems |
| 01/14/1992 | US5081679 Resynchronization of encryption systems upon handoff |
| 01/02/1992 | EP0463384A1 Method of access to a cordless telephone service |
| 12/31/1991 | US5077791 Method and apparatus for preventing unauthorized transmissions |
| 12/31/1991 | US5077790 Secure over-the-air registration of cordless telephones |
| 12/04/1991 | EP0459337A1 User access method to subscription data for a cordless telephone service |
| 12/04/1991 | EP0459065A1 Telephone arrangement for remote loading of telephonic subscription data from an autonomous station |
| 12/01/1991 | CA2043292A1 Method for giving a user access to wireless telephone service subscription data |
| 12/01/1991 | CA2043290A1 Wireless telephone service access method |
| 11/05/1991 | US5063588 Communication system providing automatic identification of calling parties |
| 10/30/1991 | EP0453538A1 Cordless telephone registration method |
| 10/22/1991 | US5060266 Continuous cipher synchronization for cellular communication system |
| 09/25/1991 | CN1054873A Simulative interference video signals generator |
| 09/25/1991 | CN1054868A Method of carrying out authentication check between base station and mobile station in mobile radio system |
| 09/19/1991 | WO1991014348A1 A method of carrying out an authentication check between a base station and a mobile station in a mobile radio system |
| 09/18/1991 | EP0447380A1 A method of carrying out an authentication check between a base station and a mobile station in a mobile radio system |
| 09/18/1991 | CN1054693A Continous cipher synchronization for cellular communication system |
| 09/11/1991 | EP0446194A1 Continous cipher synchronization for cellular communication system |
| 09/08/1991 | WO1991014315A1 Continuous cipher synchronization for cellular communication system |
| 09/04/1991 | EP0444100A1 Communication system providing automatic identification of calling parties |
| 08/17/1991 | WO1991012679A1 Method and apparatus for providing privacy/security in a communications system |
| 08/17/1991 | CA2073454A1 Method and apparatus for providing privacy/security in a communications system |
| 07/09/1991 | US5031204 Interactive diagnostic system for cellular telephones |
| 06/04/1991 | US5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 05/28/1991 | US5020094 Cordless telephone network |
| 05/12/1991 | WO1991007856A1 Cordless telephone registration method |
| 05/12/1991 | CA2048605A1 Cordless telephone registration method |
| 04/16/1991 | US5008883 Communication system |
| 03/27/1991 | CN1050294A Synchronizing method in mobile radio system |
| 03/26/1991 | US5003629 Arrangement for identifying subscribers |
| 03/14/1991 | DE4026698A1 Synchronisationsverfahren in einem mobilfunksystem Synchronization method in a mobile communications system |
| 03/13/1991 | WO1991004620A1 Synchronizing method in a mobile radio system |
| 02/19/1991 | US4995083 Method of establishing a radio link in one of a plurality of channels between two radio units |
| 02/12/1991 | US4992783 Method and apparatus for controlling access to a communication system |
| 01/13/1991 | WO1991001067A2 Method for authentication and protection of subscribers in telecommunication systems |
| 11/20/1990 | US4972479 Method and apparatus for providing privacy/security in a communication system |
| 10/16/1990 | US4964163 Method and apparatus for controlling access to a communication system |
| 09/18/1990 | US4958368 Customer activation system |
| 09/12/1990 | EP0313576A4 Gateway system and method for interconnecting telephone calls with a digital voice protected radio network |
| 09/04/1990 | US4955049 Method of supervising mobile telephone subscriptions in a mobile telephone system |
| 08/01/1990 | EP0379642A2 System for the extended provision of cellular mobile radiotelephone service |
| 07/25/1990 | CN1008962B Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels |
| 05/31/1990 | WO1990006039A1 Communication system providing automatic identification of calling parties |
| 05/09/1990 | EP0367361A2 Customer activation system |
| 04/30/1990 | CA2001857A1 Customer activation system |
| 04/24/1990 | US4920567 Secure telephone terminal |
| 03/27/1990 | US4912705 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 03/07/1990 | EP0357181A2 Method of establishing a radio link in one of a plurality of channels between two radio units |
| 02/13/1990 | US4901340 System for the extended provision of cellular mobile radiotelephone service |
| 01/09/1990 | CA1264355A1 Gateway system and method for interconnecting telephone calls with a digital voice protected radio network |
| 11/29/1989 | EP0343570A1 Method for authenticating a point-to-point connection in a multi-user communication system |
| 11/22/1989 | CN1037437A 通信系统 Communications systems |
| 11/02/1989 | EP0339740A2 Communication system |
| 10/31/1989 | US4878238 Cordless telephone network |
| 10/11/1989 | EP0336079A2 Method and apparatus for controlling access to a communication system |
| 08/22/1989 | US4860341 Radiotelephone credit card call approval synchronization |
| 08/22/1989 | US4860336 Radiotelephone credit card data communications |
| 05/16/1989 | US4831647 Radiotelephone credit card data communications |
| 05/03/1989 | EP0313576A1 Gateway system and method for interconnecting telephone calls with a digital voice protected radio network. |
| 03/28/1989 | US4817089 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 03/21/1989 | US4815128 Gateway system and method for interconnecting telephone calls with a digital voice protected radio network |
| 02/28/1989 | CA1250673A1 Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels |
| 05/10/1988 | CA1236532A1 Method of detecting the unauthorized use of an identification assigned to a mobile radio station in a radio transmission system |
| 01/14/1988 | WO1988000416A1 Gateway system and method for interconnecting telephone calls with a digital voice protected radio network |
| 06/23/1987 | US4675863 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 12/09/1986 | US4628537 System for identifying a responding station for a radio communications system |
| 10/15/1986 | CN86100949A Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels |
| 08/27/1986 | EP0112844B1 Method and apparatus for encrypted radio communications |
| 05/06/1986 | CA1204163A1 Secure mobile radio telephony |
| 12/04/1985 | EP0163358A2 Method for recognizing the misuse of the call number pertaining to a mobile station in a radio-communication system |
| 11/26/1985 | US4555805 Secure mobile telephone system |
| 10/22/1985 | US4549308 Secure mobile radio telephony |
| 08/21/1985 | EP0152150A2 Method of preventing the unauthorized use of a mobile unit in a radio telephone system |
| 07/11/1984 | EP0112844A1 Method and apparatus for encrypted radio communications. |
| 02/02/1984 | WO1984000456A1 Secure mobile radio telephony |
| 10/18/1983 | US4411017 Secure mobile telephone system |
| 01/31/1978 | US4071711 Telephone subscriber distribution system |