Lg Electronics Inc.

Youn-Sung Chu

Seung-Jae Lee

Te-Hyun Kim

Dong-Hee Shim

Kiran Kumar Keshavamurthy

Sung-Mu Son

Kyu-Sung Han

Min-Jung Shon

Dong-Hee Geumsong-Livingtel 503 Shim

Provided is a method for managing an authorization of digital rights, the method performed by a first server and comprising: receiving from a second server a drop domain authorization trigger message for an initiation of an authorization protocol to cease creating a domain rights object (RO) for a domain for which the first server has an authorization to create the domain RO, the trigger message including information on the domain; the domain being managed by the second server and the authorization being obtained by the first server from the second server checking status of the authorization; transmitting to the second server, a drop domain authorization request message including the ID of the domain; and receiving from the second server, a drop domain authorization response message including a status element indicating a result of processing of the request message based on content included in the request message.

Method and device for managing authorization of right object in digital rights managment

A method of receiving, by a memory card, a rights object (RO) from a rights issuer (RI) via a terminal. The method includes: receiving from the terminal, a provisioning setup request message including information about a size of rights to be installed in the memory card; checking whether there is a space in the memory card for the rights; transmitting, to the terminal, a provisioning setup response message including a status indicating a result of processing the provisioning setup request message; and receiving, from the terminal, a rights provisioning request message for installing the rights into the memory card, the rights provisioning request message including rights information. The rights information is based on rights being extracted from a RO response message if a device identifier (ID) in the RO response message matches an ID of the memory card which is different from an ID of the terminal.

Method for installing rights object for content in memory card

An apparatus and method for transferring a Rights Object (RO) for a content between devices via a server, wherein a sending device converts a first RO taken by itself to encode into a second RO, and sends an RO move request message including the second RO to the server, whereas the server converts the second RO included in the RO move request message into a third RO and transfers the third RO to a receiving device, whereby the receiving device receives the third RO from the server for installation, wherein the sending device deletes or modifies the first RO at an appropriate time point.

Apparatus and method for moving rights object from one device to another device via server

Disclosed is a method of receiving by a terminal a rights object (RO) from a rights issuer (RI) on behalf of a memory card, the method including, receiving, by the terminal, a trigger message for RO acquisition from the rights issuing server, comparing, by the terminal, trust anchor and ID of the memory card in a list included in the trigger message with a trust anchor and ID of the memory card within a context of the terminal, transmitting, by the terminal, a RO request message to the rights issuing server if the trust anchor and the ID of the memory card within the context are consistent with those within the list according to the comparison result, and receiving, by the terminal, a RO response message including a protected RO from the rights issuing server.

Method and terminal for receiving rights object for content on behalf of memory card

Disclosed is a method and apparatus for managing rights object of SRM in a digital rights management system. The method for managing rights object bound to the SRM, comprises: transmitting ROAP trigger from a rights issuer to a terminal; transmitting an RO request message from the terminal to the rights issuer and transmitting a response message to the RO request message from the rights issuer to the terminal; and transmitting the rights object included in the response message from a DRM agent of the terminal to a DRM agent of the SRM and installing the rights object in the SRM. Accordingly, the SRM can receive its own rights object from the rights issuer through the terminal.

Method and apparatus for managing digital rights of secure removable media

A method, device and system for stably issuing a rights object (RO) to a memory, namely, an SRM, via a terminal. When RO has been issued to the memory card, namely, to the SRM, by using the stable procedure, the RO can be compatible with a different terminal that does not support the stable procedure, whereby the RO can be completely used by the different terminal.

Disclosed is domain upgrade method in Digital Rights Management (DRM) capable of reducing network resources by simplifying signal procedures at the time of transferring changed domain keys. A device joining after domain upgrade is provided with only a domain key of a domain generation after the domain upgrade, but is not provided with a domain key of the previous domain generation. Accordingly, even if the joining device is mal-operated or is hacked, contents before upgrade are prevented from being illegally used or leaking out.

Domain upgrade method in digital rights management

A method for managing a specific domain (or user domain), for example leaving the domain by a specific device after fully returning a Rights Object (RO) taken by the specific device, instead of deactivating the RO, when leaving the specific domain, the method in which the device desiring to leave the specific domain moves its RO to another device desiring to join the specific domain and thereafter leaves the specific domain under the control of a Domain Authority/Domain Enforcement Agent (DA/DEA).

Method for managing user domain in digital rights management and system thereof

A terminal and method and system for processing SUPL are discussed. According to one embodiment, the invention provides a method of processing a SUPL request for a terminal that has performed roaming, the method comprising: receiving a SUPL INIT message from a home SLP entity, the SUPL INIT message including an indicator that indicates whether a home SLP entity uses a proxy mode or a non-proxy mode; checking the indicator to determine whether the home SLP operates in the proxy mode or the non-proxy mode; and selectively performing authentication with the home SLP entity based on the checking result indicating whether the home SLP entity operates in the proxy mode or the non-proxy mode.

SUPL initialization message in a location information system and method and system for processing SUPL by using the same

A terminal and method and system for processing SUPL are discussed. According to one embodiment, the invention provides a method of processing a SUPL request for a terminal that has performed roaming, the method comprising: receiving a SUPL INIT message from a home SLP entity, the SUPL INIT message including an indicator that indicates whether a home SLP entity uses a proxy mode or a non-proxy mode; checking the indicator to determine whether a first message or a second message should be transmitted to the home SLP entity; and transmitting the first message or the second message to the home SLP entity according to a result of the checking step.

When a SET receives a positioning service from a V-SLP by performing a roaming from a H-SLP to the V-SLP in a SUPL-based positioning system, only a new TLS connection is generated using an abbreviated handshake protocol without generating a new TLS session after the roaming. That is, when opening a TLS session for ensuring security in a SUPL-based positioning method, in particular, when opening a new TLS session between the V-SLP (V-SPC) and the SET after opening the TLS session between the H-SLP and the SET, the key information having used in the previous TLS session is provided to the V-SLP to set a new TLS connection, thereby reducing a load of an entire system.

TLS session management method in SUPL-based positioning system

A method and system for managing at least one DRM agent intending to join or leave a user domain in a Digital Rights Management (DRM) is provided, in which a Domain Enforcement Agent (DEA) manages the joining and leaving of the DRM agent resident in a home network it manages, and a Domain Authority (DA) provides a domain key to a DRM agent joining the user domain.

Method and system for managing DRM agent in user domain in digital rights management

A SUPL enabled terminal, method and system for processing SUPL are discussed. According to one embodiment, the SUPL enabled terminal includes a processor to process a SUPL location platform (SLP) mode indicator received in a SUPL initiation message, the SLP mode indicator indicating whether the terminal is to operate according to a proxy mode or a non-proxy mode.

A method of digital rights management for a broadcast-multicast service, the method comprising receiving a request from a terminal to join a service domain having a common group key; transmitting encryption of one or more service encryption keys using the common group key to the terminal that requested to join; and allowing the terminal to share the same contents and the same services with one or more other devices within the service domain.

Growing community of inventors

Gyeonggi-do, South Korea

Youn-Sung Chu