The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2011
Filed:
Feb. 27, 2007
Applicant:
David H. Malcolm, Somerville, MA (US);
Inventor:
David H. Malcolm, Somerville, MA (US);
Assignee:
Red Hat, Inc., Raleigh, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Some embodiments of a method and an apparatus to provide interoperability between different digital content protection schemes have been presented. In one embodiment, a first copy of digital content encrypted using a first protection scheme is received from a user. In response to a request from the user, it is verified that the user is a rightful owner of the first copy without decrypting the first copy. A second copy of the digital content encrypted using a second protection scheme is sent to the user if the user is a rightful owner of the first copy.