Security protection system and method
Security system for computer software
Security system for protecting information stored in portable st
Selective off-premises jamming for premium CATV service
Selective video playing system
Selective viewing control system for CATV
Self-launching encrypted digital information distribution system
Semiconductor chip having identification/encryption code
Semiconductor integrated circuit device with copy-preventive fun
Semiconductor memory device having copy protect function and met
Shared-price custom video rentals via interactive TV
Signal identification system
Signal processing apparatus and methods
Signal processing apparatus and methods
Signal processing apparatus and methods
Signal switching apparatus
Signal transmission system having encoder/decoder without frame
Single-chip microcomputer with encryptable function on program m
Smart disk software protection system
Software catalog encoding method and system