Invention Grant
- Patent Title: Compression and decompression techniques for DRM license information delivery
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Application No.: US13273499Application Date: 2011-10-14
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Publication No.: US09641910B2Publication Date: 2017-05-02
- Inventor: Daniel Catrein
- Applicant: Daniel Catrein
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- Agency: Coats and Bennett, PLLC
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L29/06 ; H04N21/4627 ; H04N21/8355 ; G06F21/10

Abstract:
Techniques for compressing and decompressing license information for Digital Rights Management are described. A method implementation of a technique of creating for a plurality of client devices or client device groups compressed license information comprises the steps of creating a template and a table. The table comprises at least one first license part common to licenses for the plurality of client devices or client device groups and one or more placeholders for one or more second license parts specific for a dedicated client device or client device group. The table comprises, for each client device or client device group and for a given placeholder, replacement information specific for that client device or client device group. The method further comprises sending the template and table for delivery as compressed license information to the client devices or client device groups.
Public/Granted literature
- US20120102215A1 Compression and Decompression Techniques for DRM License Information Delivery Public/Granted day:2012-04-26
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