公开(公告)号：WO2018154381A1

公开(公告)日：2018-08-30

申请号：PCT/IB2018/000210

申请日：2018-02-22

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： NAVALI, Prabhudev ,  NAIR, Raj ,  ARGON, Pablo

IPC: H04N21/8358 ,  H04N21/854 ,  H04N21/845 ,  H04N21/262 ,  H04N21/2343

Abstract: A system (1000, 1100) and method (200D) for distributing watermarked media content assets wherein a main track of a media content asset is provided with a first watermarking payload and at least one variant track is provided with a second watermarking payload, the watermarking payloads identified by respective identifiers. A plurality of composite segments of the media content asset are generated (260) in a suitable distribution container format, wherein each composite segment includes a segment portion of the main track and a corresponding portion of the at least one variant track, which may comprise a plurality of sample variant (SV) tracks. The main track and the at least one variant track may also be encrypted using respective encryption schemes identified via suitable KID parametric information independent of the watermarking payload identifiers. The composite segments may be uploaded to a network node (316) associated with a content delivery network (CDN) (336) that facilitates delivery of the watermarked segments to a client device (340, 1200) based on a unique watermarking signature provided via a customized manifest from a client controller (320) operating in conjunction with a watermarking session manager (318).

公开(公告)号：WO2017103856A1

公开(公告)日：2017-06-22

申请号：PCT/IB2016/057685

申请日：2016-12-15

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： NAIR, Raj ,  NAVALI, Prabhudev ,  MIKHAILOV, Mikhail ,  ALEXANDER, David ,  ARGON, Pablo

IPC: H04N21/2343 ,  H04N21/2347 ,  H04N21/2381 ,  H04N21/235 ,  H04N21/435 ,  H04N21/4405 ,  H04N21/854 ,  H04N21/845 ,  H04N21/438 ,  H04N21/254

CPC classification number: H04N21/2347 ,  G06F21/602 ,  H04L63/0428 ,  H04L65/608 ,  H04L67/02 ,  H04L67/1097 ,  H04L67/2842 ,  H04N21/23439 ,  H04N21/23476 ,  H04N21/2351 ,  H04N21/2362 ,  H04N21/2381 ,  H04N21/2541 ,  H04N21/4343 ,  H04N21/435 ,  H04N21/4353 ,  H04N21/4384 ,  H04N21/43853 ,  H04N21/4405 ,  H04N21/44055 ,  H04N21/4408 ,  H04N21/4622 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/84 ,  H04N21/8456 ,  H04N21/854 ,  H04N21/85406

Abstract: A media distribution system and method with sample variants for normalized encryption involves encrypting a main track of a media content asset using a first encryption scheme and encrypting a sample variant track of the media content asset using a second encryption scheme, and performing at least one of: storing the encrypted main track and encrypted sample variant track of the media content asset packaged in a storage format, and transmitting the encrypted main track and the encrypted sample variant track in a distribution container format to an edge media router (EMR) device configured to repackage the media content asset into a delivery container format without reencrypting the media content asset.

Abstract translation: 具有用于规范化加密的样本变体的媒体分发系统和方法涉及使用第一加密方案对媒体内容资产的主要轨道进行加密，并且使用第二加密对媒体内容资产的样本变体轨道进行加密 并且执行以下操作中的至少一个：存储以存储格式打包的媒体内容资产的加密的主轨和加密的样本变体轨道，并且将加密的主轨和加密的样本变体轨道以分布容器格式发送到边缘 媒体路由器（EMR）设备，其被配置为将媒体内容资产重新包装成递送容器格式，而不重新加密媒体内容资产。