公开(公告)号：EP1955474A1

公开(公告)日：2008-08-13

申请号：EP06812314.0

申请日：2006-10-31

申请人： LG Electronics Inc.

发明人： KIM, Te-Hyun ,  LEE, Seung-Jae

IPC分类号： H04L9/32

CPC分类号： H04L9/0825 ,  H04L9/0891 ,  H04L63/06 ,  H04L63/0853 ,  H04L2209/603 ,  H04L2463/101

摘要： A digital rights management (DRM) method and system between devices are discussed. In order to allow a first device connected with a second device to use a rights object (RO) bound to the second device, the second device decodes the particular content or the RO and transmits the decoded particular content or the decoded RO to the first device. State information of the RO according to a usage amount of the particular content used by the first device is managed by the second device.

公开(公告)号：EP1842138A1

公开(公告)日：2007-10-10

申请号：EP06716463.2

申请日：2006-03-20

申请人： LG Electronics Inc.

发明人： LEE, Seung-Jae

IPC分类号： G06F17/00

CPC分类号： G06F21/10 ,  G06F21/88 ,  G06F2221/2143

摘要： A method for protecting a rights object for a content, wherein when a discard of a rights object with respect to a certain content is requested due to a missing of a terminal which stores the rights object with respect to the content, a rights issuer (Rl) receives a confirmation request for whether a certificate has been discarded from the terminal, confirms the certificate discard through an Online Certificate Status Protocol (OCSP) responder, and then notifies the terminal of the certificate discard, and accordingly the terminal confirms the discard of the certificate of the terminal and removes the rights object with respect thereto. In addition, a user who has removed the rights object with respect to the content can continuously use the corresponding content by entirely or partially re-obtaining the rights object with respect to the content from which the rights object has been discarded.

公开(公告)号：EP2013766B1

公开(公告)日：2018-09-12

申请号：EP07745822.2

申请日：2007-04-05

申请人： LG Electronics Inc.

发明人： CHU, Youn-Sung ,  KIM, Te-Hyun ,  KESHAVAMURTHY, Kiran Kumar ,  LEE, Seung-Jae

IPC分类号： G06F21/10

CPC分类号： G06F21/10

摘要： A Digital Rights Management (DRM), and particularly a method for sharing a Rights Object (RO) of a certain DRM content between devices, wherein a certain device requests a Rights Issuer (RI) to upgrade its existing RO, and moves or copies the upgraded RO by the request to at least one or more other devices via a wired/wireless medium, thereby sharing the RO with the other devices.

公开(公告)号：EP2183696A2

公开(公告)日：2010-05-12

申请号：EP08793576.3

申请日：2008-08-29

申请人： LG Electronics Inc.

发明人： LEE, Seung-Jae

IPC分类号： G06F21/24

CPC分类号： G06F21/10 ,  G06F2221/0795

摘要： Disclosed is a digital rights management (DRM), and more particularly, a transfer of a rights object (RO) to a second user in consideration of requirements of a movement of a rights object of a first user (a terminal, an equipment), charge, etc., by providing a post browsing session when the rights object occupied by the first user is transferred to a second user via a server.

公开(公告)号：EP1982458B1

公开(公告)日：2018-12-05

申请号：EP07708611.4

申请日：2007-01-25

申请人： LG Electronics Inc.

发明人： LEE, Seung-Jae ,  KIM, Te-Hyun ,  CHU, Youn-Sung ,  SON, Sung-Mu ,  KESHAVAMURTHY, Kiran Kumar

IPC分类号： H04L9/00 ,  G06F17/00

CPC分类号： H04L9/0825 ,  G06F21/10 ,  H04L9/0822 ,  H04L9/3247 ,  H04L9/3265 ,  H04L63/0428 ,  H04L2209/603 ,  H04L2463/101

摘要： 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.

公开(公告)号：EP2183696B1

公开(公告)日：2018-04-25

申请号：EP08793576.3

申请日：2008-08-29

申请人： LG Electronics Inc.

发明人： LEE, Seung-Jae

IPC分类号： G06F21/10

CPC分类号： G06F21/10 ,  G06F2221/0795

摘要： Disclosed is a digital rights management (DRM), and more particularly, a transfer of a rights object (RO) to a second user in consideration of requirements of a movement of a rights object of a first user (a terminal, an equipment), charge, etc., by providing a post browsing session when the rights object occupied by the first user is transferred to a second user via a server.

公开(公告)号：EP1920553B1

公开(公告)日：2015-03-11

申请号：EP06783587.6

申请日：2006-08-11

申请人： LG Electronics Inc.

发明人： LEE, Seung-Jae ,  HAM, Jong-Geun, Hanil Town 118-1203

IPC分类号： H04L9/32 ,  H04L29/06 ,  G06F21/00

CPC分类号： H04L63/0428 ,  G06F21/10 ,  G06F2221/0786 ,  H04L9/0833 ,  H04L63/065 ,  H04L63/104 ,  H04L2209/603 ,  H04L2463/101

公开(公告)号：EP1920553A1

公开(公告)日：2008-05-14

申请号：EP06783587.6

申请日：2006-08-11

申请人： LG ELECTRONICS INC.

发明人： LEE, Seung-Jae ,  HAM, Jong-Geun, Hanil Town 118-1203

IPC分类号： H04L9/32

CPC分类号： H04L63/0428 ,  G06F21/10 ,  G06F2221/0786 ,  H04L9/0833 ,  H04L63/065 ,  H04L63/104 ,  H04L2209/603 ,  H04L2463/101

摘要： A method for moving Rights Object (RO) in a Digital Rights Management (DRM). RO for content is partially or entirely moved between Devices in the same group, so that the RO can be shared between the Devices and a utility thereof can be enhanced.

公开(公告)号：EP2232402B1

公开(公告)日：2018-03-28

申请号：EP08862346.7

申请日：2008-12-08

申请人： LG Electronics Inc.

发明人： LEE, Seung-Jae

IPC分类号： G06F21/00

CPC分类号： H04L63/10 ,  G06F21/10 ,  G06F2221/0706 ,  H04L2463/101

摘要： Disclosed is a method for managing rights of issuing a Rights Object (RO), and a method for moving an RO created by a Local Rights Manager (LRM) between Digital Rights Management (DRM) Agents. A Right Issuer (RI) permits an LRM to move an RO created (or issued) by the LRM to move via the RI, and a first DRM Agent moves the RO to a second DRM Agent via the RI.

公开(公告)号：EP1836795B1

公开(公告)日：2011-03-09

申请号：EP06702917.3

申请日：2006-01-13

申请人： LG Electronics Inc.

发明人： SON, Sung-Mu, Hansolmaeul Jugong 4-danji Apt. ,  SHIM, Dong-Hee, Geumsong-Livingtel 503 ,  HAN, Kyu-Sung, Jangmi Apt. A-501, 889-26 ,  SHON, Min-Jung, Lotte Apt. 102-101 ,  KIM, Te Hyun, Donga Echoville Apt. 102-1002 ,  LEE, Seung-Jae ,  CHU, Youn Sung

IPC分类号： H04L9/32

CPC分类号： H04L9/0833 ,  H04H60/15 ,  H04H60/23 ,  H04L9/0825 ,  H04L63/0428 ,  H04L63/06 ,  H04L63/104 ,  H04L2209/601 ,  H04L2209/603 ,  H04L2209/80 ,  H04L2463/101

摘要： 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.