Cable system having multiple barkering
Cable television setback decoder automatic control
Cable television system
Cable television system having dynamic market code shuffling
Cable TV system using passwords
Cable TV system using passwords
Calculating apparatus and method of encrypting/decrypting commun
Calculation apparatus and encrypt and decrypt processing...
Calculation unit for executing a cryptographic protocol
Call signs
Canal+ decoder switching circuit for video cassette recorders
Capability security for transparent distributed object systems
Card charging systems
Card-computer moderated systems
CATV subscriber apparatus with intelligent remote control
CATV system and method of curtailing reception of unauthorized s
CATV terminal unit
Cell array providing non-persistent secret storage through a mut
Cellular phone provided with legal identification means of the o
Cellular telephony authentication arrangement