Apparatus, method, and computer program product for playing...

Cryptography – Key management

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C380S044000, C713S193000

Reexamination Certificate

active

07545943

ABSTRACT:
A content playback apparatus includes an SKF selecting unit that selects one segment key file from plural segment key files recorded in a DVD media at a time of playback of a content of the sequence key section, a data selecting unit that selects each content corresponding to a segment number of each key entry registered in the selected segment key file, a moving picture data decrypting unit that decrypts the selected moving picture data by a segment key corresponding to the segment number, and a decoder that plays back the decrypted moving picture data.

REFERENCES:
patent: 7305711 (2007-12-01), Ellison et al.
patent: 2002/0087818 (2002-07-01), Ripley et al.
patent: 2004/0109569 (2004-06-01), Ellison et al.
patent: 1 548 732 (2005-06-01), None
Intel Corporation et al., “Content Protection for Prerecorded Media Specification DVD Book”, Revision 0.93, pp. I-X, 1-1 to 1-2 and 2-1 to 2-9, 2001.
Intel Corporation et al., Advanced Access Content System (AACS) Pre-recorded Video Book, Preliminary Draft Revision 0.90, pp. I-X and 1-28, 2005.
Intel Corporation et al., “Advance Access Content System (AACS) Introduction and Common Cryptographic Elements”, Preliminary Draft Revision 0.90, pp. I-XII and 1-58, 2005.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus, method, and computer program product for playing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus, method, and computer program product for playing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus, method, and computer program product for playing... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4107202

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.