| 1 |
| Patent ID | Title | Date Filed |
| 6084969 | Key encryption system and method, pager unit, and pager proxy for a two-way alphanumeric pager network
| December 31, 1997 |
| 6067529 | System and method for sending a short message containing purchase information to a destination terminal
| August 12, 1998 |
| 6047071 | Network-initiated change of mobile phone parameters
| April 15, 1997 |
| 6038549 | Portable 1-way wireless financial messaging unit
| December 22, 1997 |
| 6014085 | Strengthening the authentication protocol
| October 27, 1997 |
| 5995533 | Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics
| November 13, 1995 |
| 5987137 | Method for the encryption of data transfer
| June 4, 1997 |
| 5982895 | Finite field inverse circuit for use in an elliptic curve processor
| December 24, 1997 |
| 5903653 | Vehicle security system
| February 11, 1997 |
| 5898680 | System for providing location-specific data to a user
| November 5, 1996 |
| 5889861 | Identity confidentiality method in radio communication system
| December 15, 1995 |
| 5805707 | Radio pager with a display control capability
| July 25, 1996 |
| 5798708 | Message protection radio display paging using confidential code and password
| June 12, 1996 |
| 5784462 | Digital signal receiver capable of receiving data encrypted and transmitted in online processing
| August 22, 1996 |
| 5768526 | Method and apparatus for validating data packets in a paging system
| March 8, 1996 |
| 5729610 | Radio paging unit
| April 15, 1996 |
| 5719918 | Short message transaction handling system
| July 6, 1995 |
| 5668876 | User authentication method and apparatus
| June 24, 1994 |
| 5621798 | Method and apparatus for cooperative messaging
| April 18, 1995 |
| 5541997 | Method and apparatus for detecting correctly decrypted communications
| September 14, 1995 |
| 5530438 | Method of providing an alert of a financial transaction
| January 9, 1995 |
| 5483595 | Paging device including password accessed stored cryptographic keys
| March 21, 1995 |
| 5455864 | Encrypted paging message transmission
| February 2, 1995 |
| 5452356 | Paging transmission system
| December 10, 1993 |
| 5442703 | Method for identifying corrupt encryption keys within a secure communication system
| May 27, 1994 |
| 5412719 | Radio paging system with voice transfer function and radio pager
| January 15, 1993 |
| 5404404 | Method for updating encryption key information in communication units
| July 1, 1993 |
| 5357571 | Method for point-to-point communications within secure communication systems
| July 1, 1993 |
| 5325432 | Method for updating encryption key information in communication units
| February 4, 1993 |
| 5285496 | Methods and apparatus for providing a secure paging system
| December 14, 1992 |
| 5283832 | Paging message encryption
| October 22, 1991 |
| 5247576 | Key variable identification method
| February 27, 1991 |
| 5222137 | Dynamic encryption key selection for encrypted radio transmissions
| April 3, 1991 |
| 5164985 | Passive universal communicator system
| April 16, 1990 |
| 5016273 | Dual communication mode video tape recorder
| January 9, 1989 |
| 4991207 | One-way address transmission system of PCM music
| March 21, 1989 |
| 4856061 | Method for cryptographic transmission of speech signals and a communication station for performing the method
| December 28, 1984 |
| 4677434 | Access control system for transmitting data from a central station to a plurality of receiving stations and method therefor
| October 17, 1984 |
| 4378551 | Radio signal receiving apparatus with a security circuitry
| December 5, 1980 |
| 3924075 | Two-way privacy system terminal with single key pulse generator means
| March 20, 1947 |
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