| 7023996 |
Encryption for asymmetric data links |
| Apr-4-2006 |
A method is provided for asymmetrically encrypting data communicated between a ground platform and multiple airborne platforms. The method includes packet encrypting ground-based data so as to preserve... |
| 6996235 |
Method and system for secure printing of documents via a printer coupled to the internet |
| Feb-7-2006 |
A system and method for providing secure, on-demand delivery and retrieval of documents, messages and the like utilizing an adaptor and a printer coupled to the Internet. An adaptor is coupled between... |
| 6980796 |
Method and system for verifying the authenticity of a first communication participants in a communications network |
| Dec-27-2005 |
Method and arrangement for checking the authenticity of a first communication subscriber in a communications network In the method and the arrangement for checking the authenticity of a first communication... |
| 6973566 |
Software modem with privileged mode oversight of control parameters |
| Dec-6-2005 |
A communications system includes a physical layer hardware unit and a processing unit. The physical layer hardware unit is adapted to communicate data over a communications channel in accordance with assigned... |
| 6907123 |
Secure voice communication system |
| Jun-14-2005 |
A secure real time voice communication system 70 is provided that allows for the secure transmission of voice communications between a sending device 72 and a receiving device 78 through the public switch... |
| 6785748 |
Image communication apparatus wirelessly connectable to other apparatuses, system having the image communication apparatus, and method for controlling the same |
| Aug-31-2004 |
A wireless mode between a scanner and an image communication apparatus is changed, in response to completion of image transmission from the scanner to the image communication apparatus, completion of print... |
| 6782102 |
Multiple format secure voice apparatus for communication handsets |
| Aug-24-2004 |
Multiple format secure voice apparatus for communication handsets includes a core unit with a speaker, a microphone, a keypad, and a display. The core unit also includes an audio circuit coupled to the... |
| 6556835 |
Implementation of multicast messaging in a mobile telecommunications network |
| Apr-29-2003 |
In a method for multicasting in a radio network, having at least one base station and multiple mobile terminals, the broadcast message is broadcast from the base station, and the broadcast message is received... |
| 6556681 |
Reconfigurable universal trainable transmitter |
| Apr-29-2003 |
A trainable transmitter comprises a transmitter, code-generation circuitry and a removable, plug-in data module. The data module includes information necessary for generating a code for a specific security... |
| 6487657 |
Data communication network |
| Nov-26-2002 |
The invention relates to a data communication network suitable for the exchange of data between computers, which network comprises at least one substantially wireless LAN (Local Area Network) and access... |
| 6333703 |
Automated traffic mapping using sampling and analysis |
| Dec-25-2001 |
A system of mobile units are installed in multiple vehicles in traffic, the vehicles with mobile units being a sample of all vehicles in traffic. These mobile units include both wireless communications... |
| 6259791 |
Method and apparatus in a wireless messaging system for controlling a hierarchical provision of service |
| Jul-10-2001 |
A first service provider having a highest security of access, initially programs (604) tables in a subscriber unit (122), including an address table (224) having entries including addresses to which the... |
| 6188767 |
Method of providing group call services in a CDMA communications system |
| Feb-13-2001 |
The present invention encompasses a base station and method of providing communication services to a plurality of communication units. The method includes the steps of sending communication information... |
| 6167137 |
Secure communications in a wireless system |
| Dec-26-2000 |
Disclosed are three major aspects relating to wireless transmission of encrypted data messages in a security system wherein the receiver stores locally an encryption key utilized by the transmitting device... |
| 6150961 |
Automated traffic mapping |
| Nov-21-2000 |
A system of mobile units are installed in multiple vehicles in traffic. These mobile units include both wireless communications devices and apparatus that determines the location of each vehicle. Monitoring... |
| 6112078 |
Method for obtaining at least one item of user authentication data |
| Aug-29-2000 |
A method for obtaining at least one item of user specific data, wherein the user specific data is obtained at least partly by using paging or a short message service. |
| 6084969 |
Key encryption system and method, pager unit, and pager proxy for a two-way alphanumeric pager network |
| Jul-4-2000 |
A method and system allows encryption services can be added to an existing wireless two-way alphanumeric pager network by providing a pager proxy which is arranged to receive an encrypted message from... |
| 6067529 |
System and method for sending a short message containing purchase information to a destination terminal |
| May-23-2000 |
A telecommunications system and method is disclosed for providing a substantially immediate electronic receipt after a consumer has made a purchase. When a consumer makes a purchase, the sales terminal,... |
| 6047071 |
Network-initiated change of mobile phone parameters |
| Apr-4-2000 |
The procedure for Over-The-Air Parameter Administration (OTAPA) utilizes the over-the-air programming protocol and procedures which support the Over-The-Air Service Provisioning (OTASP) feature in accordance... |
| 6038549 |
Portable 1-way wireless financial messaging unit |
| Mar-14-2000 |
A secure messaging system including a secure messaging system controller (1100) and a first financial messaging unit (906). A user initiates a financial transaction by providing a transaction authentication... |
| 6014085 |
Strengthening the authentication protocol |
| Jan-11-2000 |
The invention strengthens authentication protocols by making it more difficult for handset impersonators to gain system access using replay attacks. This goal is accomplished using challenge codes as a... |
| 5995533 |
Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics |
| Nov-30-1999 |
Characteristics of the radio channel are used to establish pseudorandom sequences for use in communicating information. These characteristics are the short-term reciprocity and rapid spatial decorrelation... |
| 5987137 |
Method for the encryption of data transfer |
| Nov-16-1999 |
The object of the invention is a method for the encryption of information transferred between data transfer devices (MS, SGSN) in a data communication system wherein one or more data frames are created... |
| 5982895 |
Finite field inverse circuit for use in an elliptic curve processor |
| Nov-9-1999 |
A finite field inverse circuit (600) for use in an elliptic curve processor (12). The finite field inverse circuit (600) comprises a control circuit (610) and a data circuit (660). The data circuit (610)... |
| 5903653 |
Vehicle security system |
| May-11-1999 |
An anti-theft system is disclosed which includes a fuel cut-off valve (12) that is controlled in response to receiving a command over a paging system utilizing a paging receiver (14). The message that... |
| 5898680 |
System for providing location-specific data to a user |
| Apr-27-1999 |
An FDMA/TDM satellite-based digital broadcast system is used to provide digital maps and other types of data to users at remote locations. User selection of the desired data is achieved by monitoring the... |
| 5889861 |
Identity confidentiality method in radio communication system |
| Mar-30-1999 |
The radio communication system has at least one first radio station such as a base station and a plurality of second radio stations such as mobile stations. The base station at least possesses a public... |
| 5805707 |
Radio pager with a display control capability |
| Sep-8-1998 |
In a radio pager, when encrypting information is attached to a received message, the message is written to an encrypted message memory in distinction from an ordinary message. The message stored in the... |
| 5798708 |
Message protection radio display paging using confidential code and password |
| Aug-25-1998 |
In a radio display paging system, a transmitted paging signal either contains an optional confidential code and a message if the message is confidential or exclusively a non-confidential message. When... |
| 5784462 |
Digital signal receiver capable of receiving data encrypted and transmitted in online processing |
| Jul-21-1998 |
In a decoding processing circuit of a digital signal receiver, a first comparison circuit detects that a prefix of packet data is inputted in a shift register on the basis of a count value of a counter... |
| 5768526 |
Method and apparatus for validating data packets in a paging system |
| Jun-16-1998 |
A method of validating communications between a transmitting component and a receiving component of a paging system is disclosed. The transmitting component prepares an application protocol data unit (APDU)... |
| 5729610 |
Radio paging unit |
| Mar-17-1998 |
In a radio paging unit, in addition to a display driver, a control system for causing a display section to display message information received via a radio reception section and saved in a message storage... |
| 5719918 |
Short message transaction handling system |
| Feb-17-1998 |
A transaction handling system (THS) for use in a cellular telephone network using Short Messages is described. The THS comprises means for receiving digitally encoded information from one or more sources,... |
| 5668876 |
User authentication method and apparatus |
| Sep-16-1997 |
Authorization for a user to use a service is provided by a modified pager which calculates a unique response code to a transmitted challenge code based on the challenge code, an input personal identification... |
| 5621798 |
Method and apparatus for cooperative messaging |
| Apr-15-1997 |
A wireless network is disclosed that comprises base transmitter/receiver stations coupled to a trunk communications network and several mobile computing devices that are capable of transmitting and receiving... |
| 5541997 |
Method and apparatus for detecting correctly decrypted communications |
| Jul-30-1996 |
In a receiver (100), an encrypted communication (104) is decrypted using a decryptor (101) and a key (107) to produce a decrypted communication (105). A comparator (103) compares decrypted symbol patterns... |
| 5530438 |
Method of providing an alert of a financial transaction |
| Jun-25-1996 |
A radio system user (126) is alerted (129) as to the occurrence of a financial transaction by a customer (118). Data (122) is obtained from the customer (118) and used to identify a radio system user (126),... |
| 5483595 |
Paging device including password accessed stored cryptographic keys |
| Jan-9-1996 |
A paging device includes a cryptographic function and a password accessed cryptographic key look-up table associating each stored key with a password. When an cryptographic message is collected by the... |
| 5455864 |
Encrypted paging message transmission |
| Oct-3-1995 |
A method and apparatus for paging message encryption and decryption is shown and described. Paging messages may be encrypted at their source or by the paging system and delivered by radio signal in secure... |
| 5452356 |
Paging transmission system |
| Sep-19-1995 |
Method and apparatus for sending, receiving, and displaying custom coded textual and/or graphic data via an alphanumeric paging system wherein source data in binary form is encrypted with a designated... |
| 5442703 |
Method for identifying corrupt encryption keys within a secure communication system |
| Aug-15-1995 |
A resource allocator (108) receives, from a first communication unit, a request to establish secure communications with at least a second communication unit. A key identifier is retrieved by the resource... |
| 5412719 |
Radio paging system with voice transfer function and radio pager |
| May-2-1995 |
A radio paging system with voice transfer function for transmitting a voice message input from an ordinary push-button telephone set to a small-sized receive-only unsophisticated radio pager. A paging... |
| 5404404 |
Method for updating encryption key information in communication units |
| Apr-4-1995 |
Within a communication system, updating encryption key information in communication units of a particular communication group begins when a key management terminal transmits a key update message for the... |
| 5357571 |
Method for point-to-point communications within secure communication systems |
| Oct-18-1994 |
In a secure communication system, a secure point-to-point communication may be accomplished in the following manner. A first communications unit receives a request from an operator for a point-to-point... |
| 5325432 |
Method for updating encryption key information in communication units |
| Jun-28-1994 |
Within a communication system, an encryption controller receives unit identification information from a plurality of encrypting/decrypting communication units. For any individual communication unit, the... |
| 5285496 |
Methods and apparatus for providing a secure paging system |
| Feb-8-1994 |
A paging system which sends and receives encrypted messages. The message may be encrypted either by the sender of the message or by the paging system. Multiple keys may be used for encrypting and decrypting.... |
| 5283832 |
Paging message encryption |
| Feb-1-1994 |
A paging receiver (15) for receiving secure radio frequency (RF) communications comprises a receiver circuit (102) for receiving and demodulating a signal to obtain information. A memory device (108) is... |
| 5247576 |
Key variable identification method |
| Sep-21-1993 |
In a communication system that includes a plurality of communication units, a communication resource allocator, and a limited number of transceivers that transceive information amongst the plurality of... |
| 5222137 |
Dynamic encryption key selection for encrypted radio transmissions |
| Jun-22-1993 |
A radio (100) transmits and receives encrypted signals having unencrypted key identifiers, allowing other radios having the corresponding key identifiers and encryption keys to communicate with radio (100).... |
| 5164985 |
Passive universal communicator system |
| Nov-17-1992 |
A communication system includes a base station, called a "Controller" and one or more remote or satellite stations, each called a "Communicator". The controller arbitrates, controls and communicates with... |
