Appeal 2007-0463
Application 09/896,537
Inasmuch as claims 4-10 and 17-19 were canceled by the Amendment After
Final filed February 1, 2006, which was approved for entry in the April 11, 2006,
Advisory Action, the appeal is dismissed as to those claims.
Appellants’ invention relates to digital rights management and more
particularly to the hierarchical protection of digital content (Specification 2, para.
0002). Content may have one or more attributes, such as resolution, frame rate,
number of copies, number of simultaneous users, or size of computer (id. at 2,
para. 0004). For instance, video content may comprise the attributes of resolution
and frame rate (id.).
The invention permits the content to be encrypted once and distributed to
multiple environments having various levels of security (id. at 5, para. 0014).
The invention provides multi-level and multi-dimensional encoding. Multi-
dimensional encoding refers to encoding content that may have one or more
attributes, such as resolution or frame-rate (id. at 5, para. 0015). Multi-level
encoding refers to hierarchical encoding of content for a given attribute (id.).
Multi-dimensional content is divided into sections (id. at 5, para. 0016).
Each section is a portion of the content to be distributed and is separately encrypted
using a separate key from a hierarchy of keys (id.). In the example depicted in
Figure 1 (reproduced below), content 100 having three attributes (corresponding to
dimensions 124) is transformed into encrypted content 102 comprising a plurality
rejected claims as claims 1-28 and incorrectly gives the date of the rejection as
October 7, 2007 (Br. 2, para. III).
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: September 9, 2013