Method and apparatus for controlling country specific frequency
Method and apparatus for cooperative messaging
Method and apparatus for creating and using an encrypted digital
Method and apparatus for creating, supporting, and using travell
Method and apparatus for creating, supporting, and using travell
Method and apparatus for credit card verification
Method and apparatus for cryptographic authentication
Method and apparatus for crytographically protecting data
Method and apparatus for data authentication in a data communica
Method and apparatus for data authentication in a data communica
Method and apparatus for data encryption and transmission
Method and apparatus for designing cipher logic, and a...
Method and apparatus for detecting unauthorized distribution of
Method and apparatus for digitizing a scrambled analog video sig
Method and apparatus for document verification and tracking
Method and apparatus for efficient real-time authentication and
Method and apparatus for efficient real-time authentication and
Method and apparatus for electronic license distribution
Method and apparatus for electronic licensing
Method and apparatus for electronically preventing unauthorized