CD-ROM disk and security check method for the same
Cell signal processing circuit and optical switch apparatus usin
Central database system for automatic software program sales
Cipher strength evaluation apparatus
Circuit and method for maintaining security of video tape using
Clock frequency modulation for secure microprocessors
Command and control signalling method and apparatus
Command modulation system having command generator unit for comm
Communication apparatus and a communication system
Communication device and system for mobile encrypted communicati
Communication device apparatus and method utilizing pseudonoise
Communication device, apparatus, and method utilizing pseudonois
Communication network intended for secure transmission of speech
Communication system with automatic handoff
Communication terminal system
Communication using synchronized chaotic systems
Communications network
Communications system and method using vehicle identifications
Community antenna television reception controlling apparatus
Compensation control for off-premises CATV system