Data broadcasting system

Data copyright management system

Data encryption control apparatus and method

Data encryption for product information and access

Data management method and system thereof

Data management module, data reproduction management device and

Data management system

Data processing apparatus

Data processing system and method to produce softcopy book reade

Data processing system having a set of memory cards

Data processor systems

Data processor with flexible data encryption

Data protection by detection of intrusion into electronic assemb

Data protection by detection of intrusion into electronic assemb

Data recording medium

Data reproducing device

Data security arrangements for semiconductor programmable device

Data storage device

Data storage device and method of accessing the data storage dev

Data transmission protocol method and apparatus