12

Circuit switched network (e.g., wired telephone)

CL 380 SC 257
6990198 Apparatus and method for securing communication information in CDMA communication system
Jan-24-2006 An apparatus and a method for securing a communication information in a CDMA communication system are disclosed. The method of the invention comprises the steps of encoding a input analog signal as an...
6988205 Method and apparatus for the secure storage of audio signals
Jan-17-2006 A method and apparatus for recording audio so that the recording can be authenticated as to both content and time of recording is provided. The system may be implemented as a central server that is accessed...
6985587 Method and system for calling line authenticated key distribution
Jan-10-2006 The preferred embodiments described herein provide a method and system for calling line authenticated key distribution. In one preferred embodiment, an authentication key is provided to a calling party...
6980656 Chaotic communication system and method using modulation of nonreactive circuit elements
Dec-27-2005 A chaotic communication system employs transmitting and receiving chaotic oscillating circuits. One improvement to first-generation systems is the ability to modulate a nonreactive element in the transmitting...
6879669 Method and apparatus for enabling a privacy feature in a communications network
Apr-12-2005 A method, apparatus, and computer instructions for securely transferring information in a communications system. Signals are generated by a communications keypad. In response to receiving an input indicating...
6836548 Communications security and trusted path method and means
Dec-28-2004 A trusted path device is described which may be used stand alone or may be retrofitted to a users untrusted computer console or workstation so that an untrusted data input may be displayed on an untrusted...
6804506 Method mobile station and radiocommunication system for controlling safety related functions in communication handling
Oct-12-2004 Method, mobile station and radio communications system for controlling security-related functions for call handling. Based on the known method and radio communications system for controlling the security-related...
6792111 Cryptation system for packet switching networks based on digital chaotic models
Sep-14-2004 A cryptation system for information transmitted through packet switching networks masks the digital information data by combining it at the transmitting station with digital data of a certain cryptation...
6763465 Method of ensuring that the PC is not used to make unauthorized and surreptitious telephone calls
Jul-13-2004 The present invention prevents unauthorized access and modifications to programs and non-executable files, particularly a dialer program, stored on a personal computer system (PC) by providing a protected...
6741705 System and method for securing voice mail messages
May-25-2004 A system is provided for securing voice mail messages. The system includes a packet network and a telephony device that is coupled to the packet network. The system also includes a voice mail system that...
6711262 Procedure for the control of applications stored in a subscriber identity module
Mar-23-2004 A procedure for the control of applications stored in a user's subscriber identity module (SIM) in a data communication system that includes a data communication network, a terminal device connected to...
6681016 System for transfer of secure mission data
Jan-20-2004 An information processor is installed onboard a seagoing vessel that has at least one onboard system, e.g., a weapon system, to carry out a mission that is defined by instructions originating at a remote...
6584562 Device for securing a telephone link between two subscriber sets
Jun-24-2003 The securing of a telephone link between the two subscriber sets is established on the basis of encryption keys transmitted over the service channel (D) of the ISDN network whether the link be established...
6574730 User authentication in a communications network
Jun-3-2003 An authentication system of a terminal on a public switched telephone network provides a security node associated with a local exchange and a network terminal. For one-way authentication, the terminal...
6560707 Multimedia coordination system
May-6-2003 In a network, a media coordination system provides secure multimedia communication channels in a collaborative network environment. The media coordination system provides automatic encryption, dynamic...
6445796 Automatic telephone-line disconnect system
Sep-3-2002 A telephone disconnect system having a current-sensitive relay which automatically operates to electrically connect the telephone lines to the telephone network when the cradle switch of the telephone...
6385724 Automatic object caller chain with declarative impersonation and transitive trust
May-7-2002 An object-based security framework provides automatic caller chain building to track the identity of upstream callers. An application developer can define impersonation settings declaratively using a graphical...
6363150 Billing method for customers having IP telephony service with multiple levels of security
Mar-26-2002 A method for initiating a security and billing feature request at the beginning or during an active telephone call. The telephone subscriber can select one of a plurality of security levels that may be...
6275588 Apparatus and method for performing and controlling encryption/decryption for data to be transmitted on local area network
Aug-14-2001 A technique for performing compression, encryption and transmission, and reception, decryption and decompression, respectively, of data communication packages on an area network.
6275573 System and method for secured network access
Aug-14-2001 Secured connections are provided over a telephone access network using encryption/decryption equipment installed at a customer's premises and at a network facility. For outbound calls, the access network...
6266418 Encryption and authentication methods and apparatus for securing telephone communications
Jul-24-2001 An encryption device for a telephone having a handset and a base unit is disclosed. The device includes a handset interface, a first converter, an encryption processor, a second converter, and a host interface....
6192128 Current-sensitive telephone-line disconnect system
Feb-20-2001 The circuit uses a current sensing device that is controlled by the telephone line current. The telephone lines are connected to the contacts of a push-button switch, and a diode bridge is connected across...
6170061 Method and system for secure cable modem registration
Jan-2-2001 A method and system for secure cable modem initialization in a data-over-cable system is provided. The method includes sending a unique identifier, such an Internet Protocol ("IP") address and a selected...
6144744 Method and apparatus for the secure transfer of objects between cryptographic processors
Nov-7-2000 Objects such as master keys or object protection keys that are kept in a protected environment of a crypto module are securely transferred between modules by means of transport keys. The transport keys...
6061450 Alternate telephone system
May-9-2000 Apparatus for routing local calls around the local exchange carrier includes an intelligent call diverter (ICD) which stores the Automatic Number Identification Code (ANI) of the calling telephone, and...
6058187 Secure telecommunications data transmission
May-2-2000 Secure data transmission apparatus comprises a data translator for translating an input string of signals, each signal having incomplete information for identifying an alphanumeric character, into a first...
6052783 Method of loading commands in the security module of a terminal
Apr-18-2000 A method of loading commands (C1, C2, . . . ) in a security module (2) of a terminal (1) is disclosed. The method comprises the steps of: a station (4) transferring the commands (C1-Cn) to the terminal...
6044158 Method and apparatus for communicating secure data over a telephone line using a cellular encryption apparatus
Mar-28-2000 A communication apparatus (100) provides an interface between a cellular encryption and decryption apparatus (150) and a telephone line (91) allowing for communication of secure data of the telephone line...
6005941 Method and apparatus for providing optional service functions in a private branch exchange
Dec-21-1999 A private branch exchange has optional service modules for providing optional service functions. The optional service modules are initially disabled, but can be enabled through a telecommunication link,...
6005874 Method of processing messages in a secure communications system having a plurality of encryption procedures, and such a secure communication system
Dec-21-1999 In a secure communications system where messages between subscribers are encrypted according to a selection of encryption procedures, a gateway trunk is provided. The gateway trunk comprises a telecommunications...
5974142 Secure telecommunications
Oct-26-1999 A security node disposed in the telecommunications network connecting calling and called parties transforms information (which can be voice, data, facsimile, video and other types of calls or messages)...
5963644 Process and device for making secure a telephone link connecting two subscriber sets
Oct-5-1999 A telephone link comprises two network terminals to which two subscriber sets are respectively connected, two subscriber lines respectively linking the two network terminals to two line terminals respectively...
5963643 Method and system for the transfer of information between two populations of persons, one nomadic and the other sedentary
Oct-5-1999 A method enabling two populations of persons, one being sedentary (for example a provider of long-distance services) and the other being nomadic (for example the customers of this provider of services)...
5848156 Communication method and apparatus for carrying out cipher communications telephonically
Dec-8-1998 A communication method that can easily carry out cipher communication. At the caller, a secret key is produced based on data including the caller's own telephone number and the telephone number of the...
5787154 Universal authentication device for use over telephone lines
Jul-28-1998 A method is provided for securely transmitting information from a telephone to a calling party over a telephone network. In accordance with the method, encrypted audio signals are received from the telephone...
5761312 Enhanced individual intelligent communication platform for subscribers on a telephone system
Jun-2-1998 A multiple function individual intelligent communication platform is disclosed which supports the subscriber at the subscriber's location. Tremendous functionality is incorporated into a single system...
5721780 User-transparent security method and apparatus for authenticating user terminal access to a network
Feb-24-1998 The present invention provides a password authentication security system for a telecommunications network having a plurality of user terminals or subscriber stations communicably coupled to the network....
5710816 Method and apparatus for ensuring receipt of voicemail messages
Jan-20-1998 A messaging system in which a sender is able to receive certification of receipt of messages sent to a receiver that ensures that only the desired recipient gains access to the messages. Also, the messaging...
5677954 Cryptical control method for personal communication
Oct-14-1997 When an incoming call corresponding to a communication number PID takes place in a switching station, the switching station retrieves user-intrinsic information UK and an incoming-communication registered...
5642418 Satellite television system and method
Jun-24-1997 A system for controlling the acquisition of encrypted program signals such as television or other signals utilizing existing equipment in use in telecommunications networks. The transmitted program signals...
5594904 Tracing with keys and locks
Jan-14-1997 A method and apparatus for detecting events occurring in a telecommunications network is disclosed which comprises stored program control (SPC) exchanges, each SPC exchange comprising a switch and processors...
5594798 Secure telecommunications
Jan-14-1997 A security node disposed in the telecommunications network connecting calling and called parties transforms information (which can be voice, data, facsimile, video and other types of calls or messages)...
5588059 Computer system and method for secure remote communication sessions
Dec-24-1996 A computer system includes a Key Certification Agency (KCA) (12), a host computer (16), and a number of remote terminals (14). The KCA (12) uses incompatible encryption processes (96, 98) to encrypt session...
5579394 Clear channel interface module and method therefor
Nov-26-1996 A communication system (10) includes a channel (18) that conveys both clear and secure communications and a channel (12) that does not convey clear communications. An interface module (24) resides between...
5471526 Tracing with keys and locks on a telecommunication network
Nov-28-1995 A method and apparatus for detecting events occurring in a telecommunications network is disclosed which comprises stored program control (SPC) exchanges, each SPC exchange comprising a switch and processors...
5450493 Secure communication method and apparatus
Sep-12-1995 In communication devices for conducting secure communications over insecure channels, means for detecting active attacks on voice or video communication is provided. These means enhance security of exchange...
5444767 Systems and methods for recording and delivering personalized audio messages
Aug-22-1995 Systems and methods for recording and delivering personalized audio messages are provided. The system includes a central facility computer system (CF), a store front programming system (SFS), and a portable...
5434920 Secure telecommunications
Jul-18-1995 A security node disposed in the telecommunications network connecting calling and called parties transforms information (which can be voice, data, facsimile, video and other types of calls or messages)...
5412726 Telecommunication installation with secure remote loading of prepayment means and corresponding remote loading process
May-2-1995 The installation comprises a remote loading mode in which in response to a remote loading request word (R) for a predetermined number of value units emanating from the autonomous set (PA), there is provided:...
5402490 Process for improving public key authentication
Mar-28-1995 An environment which includes a communications network, user terminals, and an authentication center provides communication services only to legitimate subscribers. The authentication center receives an...