Digital rights management method and apparatus of mobile terminal

A technology for digital rights management and mobile terminals, applied in digital data processing, special data processing applications, digital computer components, etc., can solve the problems that DRM cannot be applied globally, use rights protection is unreliable, and limited

Inactive Publication Date: 2009-05-13
SAMSUNG ELECTRONICS CO LTD
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Typically, time-based DRM content items are limited in terms of usage with reference to the mobile terminal's local time or Network Identity and Time Zone (NITZ) time
[0005] However, conventional NITZ time-based DRM cannot be applied globally since service providers may provide different NITZ information
[0006] In addition, the conventional DRM based on local time has the disadvantage that since the local time changes when the mobile terminal moves to another time zone, or the application local time changes according to the day light savings time system, the usage rights protection Unreliable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Digital rights management method and apparatus of mobile terminal
  • Digital rights management method and apparatus of mobile terminal
  • Digital rights management method and apparatus of mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The following description with reference to the accompanying drawings is provided to facilitate a comprehensive understanding of exemplary embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding, but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0018] Terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the invention. Accordingly, as it will be apparent to those of ordinary skill in the art, the following description of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A DRM method and apparatus of a mobile terminal is provided for protecting unauthorized use of a time-based DRM content and improving license validation reliability by providing a reliable reference time regardless of changes of local time and time zone. The digital rights management method of the present invention includes detecting a playback command for playing a right protected content, determining whether a previously stored reference parameter exists, which is generated using a reference time received from a server and a local time of the mobile terminal, and testing, when a previously stored reference parameter exists, validity of a license of the right protected content with reference to the reference parameter and the local time when the playback command is detected.

Description

technical field [0001] The present invention relates to Digital Rights Management (DRM). More particularly, the present invention relates to a DRM method and apparatus for a mobile terminal capable of preventing unauthorized access to time-based DRM content by providing a reliable reference time regardless of changes in local time and time zone Use, and improve license confirmation reliability. Background technique [0002] DRM is an access control technology for protecting intellectual property rights of distributed digital media by restricting usage of the digital media using encryption technology. That is, the DRM technology allows content to be securely transmitted from a content provider (CP) to a user and protects the content from illegal use and distribution. [0003] In order to use DRM content on a mobile terminal, a user must access a content server and download a specific DRM content item, metadata, and a license granted to the mobile terminal to use the DRM con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06F21/10G06F21/72
CPCG06F21/725G06F21/10G06F15/00G06F21/00G06F17/00
Inventor 咸东邑
Owner SAMSUNG ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap