公开(公告)号：EP2401867A1

公开(公告)日：2012-01-04

申请号：EP10746857.1

申请日：2010-02-25

申请人： Marking, Aaron ,  Goeller, Kenneth ,  Lotspiech, Jeffrey Bruce

发明人： Marking, Aaron ,  Goeller, Kenneth ,  Lotspiech, Jeffrey Bruce

IPC分类号： H04N7/167

CPC分类号： G11B20/00086 ,  G06F21/10 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00362 ,  G11B20/0042 ,  G11B20/00427 ,  G11B20/00442 ,  G11B20/00731 ,  G11B20/00746 ,  G11B20/00855 ,  G11B20/00869 ,  G11B20/00927 ,  H04L9/002 ,  H04L67/38 ,  H04L2209/16 ,  H04L2209/605

摘要： A method of renewing encryption applied to a content file in a playback device comprising determining a specified variant of at least one microcode function to be used in playing back the content file, determining if variants are stored in internal memory on the playback device to determine if the specified variant is included in the stored variants, retrieving the specified variant from a variant storage in a memory located In a media device in communication with the playback device, if the specified variant is not included in the stored variants, and using the specified variant to access the content file.

公开(公告)号：EP2255315A2

公开(公告)日：2010-12-01

申请号：EP09710597.7

申请日：2009-02-11

申请人： Marking, Aaron ,  Goeller, Kenneth

发明人： Marking, Aaron ,  Goeller, Kenneth

IPC分类号： G06F21/00

CPC分类号： G06F21/16 ,  G06F2221/07 ,  H04N7/1675 ,  H04N21/4788 ,  H04N21/8352 ,  H04N21/8358

摘要： A Secure Non-autonomous Peering (SNAP) system includes a hierarchical digital watermarking scheme, a central licensing authority, licensed fabricators and assemblers.