COPY PROTECTION METHOD OF DIGITAL CABLE BROADCASTING CHANNEL ACCORDING TO PREDETERMINED DIGITAL CABLE BROADCASTING STANDARD, CABLECARD MODULE, AND VIDEO SYSTEM

摘要

A method for preventing the copy of a digital cable broadcasting channel according to a certain digital cable broadcasting standard, a cable card module, and a video system are provided to automatically set a copy prevention value when the copy prevention value such as a CCI(Copy Control Information) value for contents of the same digital cable broadcasting channel is not received when a channel is converted. A cable card interface unit(12) communicates with a video device through an interface protocol. When a digital cable broadcasting channel is received from the video device through the cable card interface unit(12), a module control unit(11) exchanges a copy prevention value on a digital cable broadcasting standard with the video device through the cable card interface unit(12) irrespective of a type of at least one previous channel of the digital cable broadcasting channel.