Cryptographic methods, apparatus and systems for storage media electronic rights management in closed and connected appliances
a technology of electronic rights management and storage media, applied in the field of cryptographic methods, apparatus and systems for storage media electronic rights management, can solve the problems of limited playback time, low resistance to breakage, and high manufacturing cost, and achieve the effect of increasing the available secure rights management resources and increasing and/or differing rights management capabilities
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example secure
Disk Creation and Distribution Process
[0169] FIG. 1C shows an example secure process for creating a master multimedia DVD disk 100 for use with players 50, 60. In this example, a digital camera 350 converts light images (i.e., pictures) into digital information 351 representing one or a sequence of images. Digital camera 350 in this example includes a secure node 72A that protects the digital information 351 before it leaves camera 350. Such protection can be accomplished, for example, by packaging the digital information within one or more containers and / or associating controls with the digital information.
[0170] In this example, digital camera 350 provides the protected digital image information 351 to a storage device such as, for example, a digital tape recorder 352. Tape recorder 352 stores the digital image information 351 (along with any associated controls) onto a storage medium such as magnetic tape cartridge 354 for example. Tape recorder 352 may also include a secure node...
example dedicated
Player Architecture
[0180] FIG. 2A shows an example architecture for dedicated player 52. In this example, player 52 includes a video disk drive 80, a controller 82 (e.g., including a microprocessor 84, a memory device such as a read only memory 86, and a user interface 88), and a video / audio processing block 90. Video disk drive 80 optically and physically cooperates with disk 100, and reads digital information from the disk. Controller 82 controls disk drive 80 based on program instructions executed by microprocessor 84 and stored in memory 86 (and further based on user inputs provided by user interface 88 which may be coupled to controls 58 and / or remote control unit 56). Video / audio processing block 90 converts digital video and audio information read by disk drive 80 into signals compatible with home color television set 54 using standard techniques such as video and audio decompression and the like. Video / audio processing block 90 may also insert a visual marking indicating the...
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