Absolute static lock of files and directories on magnetic disk s

Access control system for litigation document production

Access restriction to circuit designs

Adaptive data ciphering/deciphering apparatuses and data communi

Advertisement authentication system in which advertisements are

Anonymous information retrieval system (ARS)

Anti-copying video signal processing

Anti-taping method and apparatus for a multiplexed analog compon

Antijam improvement method and apparatus

Apparatus and method for certifying the delivery of information

Apparatus and method for comprehensive copy protection for video

Apparatus and method for continuous scrambling while transmittin

Apparatus and method for controlling access to software

Apparatus and method for establishing crypto conferences on a te

Apparatus and method for loading a system reference diskette ima

Apparatus and method for loading a system reference diskette ima

Apparatus and method for preventing unauthorized access to BIOS

Apparatus and method for preventing unauthorized copying of vide

Apparatus and method for preventing unauthorized copying of vide

Apparatus and method for processing a high definition video sign