On Thursdays that USPTO publishes new patent applications. Both of today's Spotlight Applications address various aspects of DRM. Assigned to Huawei Technologies (CN), the first application discloses techniques for realizing accurate billing in digital rights management. Assigned to NHN Corporation (KR), the second application discloses ways of presenting advertising using free ring tones and DRM.
20080172719, "Method and apparatus for realizing accurate billing in digital rights management," assigned to Huawei Technologies (CN).
The present invention discloses a method for realizing accurate billing in digital rights management, including: sending, by a rights issuing system, to a Device a rights object acquisition response message including a rights object; sending, by the Device, a rights object acquisition acknowledgement message to the rights issuing system, after validation of the rights object acquisition response message is passed; and initiating, by the rights issuing system, a billing function after receiving the rights object acquisition acknowledgement message. The invention also discloses an apparatus and a rights issuing system. With the inventive method and system, billing will be initiated only in the event that the Device has obtained the rights object successfully or has joined the domain successfully, thereby avoiding effectively the problem of billing error and improving the Quality of Service.
20080167921, "Advertisement method using ring tone providing service and advertisement system thereof, and computer- readable media for recording advertisement method program," Assigned to NHN Corporation (KR).
An advertisement method using a free ring tone providing service is provided. The advertisement method using the free ring tone providing service includes the steps of: embedding a Digital Rights Management (DRM) code into advertisement contents; acquiring DRM information of the advertisement contents via the DRM code embedded in the advertisement contents when the advertisement contents are replayed with a ring tone in a user terminal of a user being a member of a service which receives the ring tone and the advertisement contents without any financial charge; and charging for the advertisement contents based on the DRM information. Also, an advertisement system using a free ring tone providing service is provided.