Data transmission security arrangement for a plurality of data s
Data-locking system
Data-protecting system
Database system with local information remotely supported with d
Database usage metering and protection system and method
Database usage metering and protection system and method
Database usage metering and protection system and method
Debug routine accessing system
Decoder for a recorder-decoder system
Decoding device for computer software protection
Decoding system and data format for processing and storing encry
Decrypting method and electronic device
Detection of unauthorized use of software applications in commun
Device for securing an information system used in microcomputers
Device for starting charging in a pay phone
Device for the distribution of music information in digital form
Device having a digital interface and a network system using suc
Differential compensation control for off-premises CATV system
Differential power analysis
Differential power analysis