公开(公告)号：US10194182B2

公开(公告)日：2019-01-29

申请号：US15105318

申请日：2015-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Joonhee Yoon ,  Soojin Hwang ,  Jongyeul Suh ,  Sunghyun Cho ,  Sangheon Lee ,  Youngwook Kang ,  Hyunmook Oh

IPC: H04N21/2387 ,  H04N21/854 ,  H04N21/4147 ,  H04N21/6379

Abstract: The present invention relates to a signal transmission and reception apparatus and a signal transmission and reception method. An embodiment of the present invention provides a signal transmission method comprising: a step (S110) of encoding video data; a step (S120) of encoding a file format including the encoded video data, wherein the file format includes pre-filtering information for trick play; and a step (S130) of transmitting data including the encoded file format. According to an embodiment of the present invention, it is possible to provide trick play for an encoded stream more efficiently.

公开(公告)号：US20150296268A1

公开(公告)日：2015-10-15

申请号：US14440265

申请日：2013-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Minsoo Lee ,  Soojin Hwang ,  Jongyeul Suh ,  Sunghyun Cho ,  Hyeonjae Lee ,  Jinpil Kim ,  Jaekoo Lee

IPC: H04N21/6334 ,  G06F21/10 ,  H04N21/658 ,  H04N21/254 ,  H04N21/432 ,  H04N21/6377 ,  H04L29/06 ,  H04N21/8352

CPC classification number: H04N21/6334 ,  G06F21/10 ,  G06F21/105 ,  G06F2221/0768 ,  H04L63/0823 ,  H04N21/2541 ,  H04N21/4325 ,  H04N21/63775 ,  H04N21/6581 ,  H04N21/8352

Abstract: There is provided a method of playing a content stored in a storage device which is connectable, including: detecting whether the storage device is connected; receiving certification information from the detected storage device; transmitting, to a server, the certification information; receiving, from the server, an encrypted media file and a certification list based on the certification information, wherein the certification list is used for authenticating eligibility of at least one of a player, the storage device, and the server; storing the encrypted media file to the storage device and updating the certification list; and playing the encrypted media file based on the updated certification list.

Abstract translation: 提供一种播放存储在可连接的存储设备中的内容的方法，包括：检测存储设备是否连接; 从检测到的存储设备接收认证信息; 向服务器发送认证信息; 从所述服务器接收基于所述认证信息的加密媒体文件和认证列表，其中所述认证列表用于认证播放器，所述存储设备和所述服务器中的至少一个的资格; 将加密的媒体文件存储到存储设备并更新认证列表; 并根据更新的认证列表播放加密的媒体文件。

公开(公告)号：US09773100B2

公开(公告)日：2017-09-26

申请号：US14770370

申请日：2014-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Minsoo Lee ,  Sunghyun Cho ,  Soojin Hwang ,  Suk Kim ,  Hyeonjae Lee ,  Younghwan Kwon ,  Jinpil Kim ,  Jaekoo Lee ,  Jingu Choi

IPC: G06F21/10 ,  G06F21/16 ,  H04N21/254 ,  H04N21/258 ,  H04N21/432 ,  H04N21/4627 ,  H04N21/278 ,  H04N21/6334

CPC classification number: G06F21/16 ,  G06F21/10 ,  G06F2221/2101 ,  H04L9/3268 ,  H04L63/062 ,  H04L2209/603 ,  H04L2463/101 ,  H04L2463/103 ,  H04N21/2541 ,  H04N21/25875 ,  H04N21/278 ,  H04N21/4325 ,  H04N21/4627 ,  H04N21/6334

Abstract: The present invention provides a method for playing contents, which are stored in a storage device connected via at least one interface, the method comprising: detecting a connection of the storage device; transmitting transaction information stored in the detected storage device to a license server, wherein the transaction information includes transaction identification information which identifies a corresponding transaction and a user; receiving, from the license server, license information allowing to play the contents; and playing the contents on the basis of the license information, wherein the license information includes a license file and a license key.

公开(公告)号：US09986291B2

公开(公告)日：2018-05-29

申请号：US14904047

申请日：2014-07-10

Applicant: LG ELECTRONICS INC.

Inventor： Sunghyun Cho ,  Jingu Choi ,  Youngjun Jo ,  Soyoung Kim ,  Youngwook Kang

IPC: H04N7/167 ,  H04N21/4627 ,  H04N21/4405 ,  H04N21/835 ,  G06F21/00 ,  H04N21/258 ,  H04N21/254 ,  H04N21/418 ,  H04N21/433 ,  H04N21/6334

CPC classification number: H04N21/4627 ,  G06F21/00 ,  H04N21/2541 ,  H04N21/25816 ,  H04N21/25858 ,  H04N21/4184 ,  H04N21/433 ,  H04N21/4405 ,  H04N21/6334 ,  H04N21/835

Abstract: A method for managing license information for playback of content, includes transmitting certificate information of a storage device to a license serve, updating a certificate revision list received from the license server on the basis of the certificate information, receiving encrypted license information allowing the content to be played through a first session established between the storage device and the license server, the first session being identified by session identification information, and decrypting the encrypted license information and storing the decrypted license information to a secure region.

公开(公告)号：US09858960B2

公开(公告)日：2018-01-02

申请号：US15121211

申请日：2015-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Sunghyun Cho ,  Hyunkook Khang ,  Joonhee Yoon

IPC: H04N5/765 ,  H04N9/80 ,  G11B20/00

CPC classification number: G11B20/00224 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00217

Abstract: Provided is a method of playing content stored in a storage device including requesting a conversion of the content to a content service server, receiving content key information and additional information for the conversion of the content from the content service server, and performing the conversion of the content based on the content key information and the additional information.