公开(公告)号：US11483604B2

公开(公告)日：2022-10-25

申请号：US17388389

申请日：2021-07-29

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale

IPC: H04N21/254 ,  H04L9/08 ,  H04L9/40 ,  G11B27/10 ,  H04L9/14 ,  H04N21/2347 ,  H04N21/2387 ,  H04N21/239 ,  H04N21/426 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/845

Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.

公开(公告)号：US09313178B2

公开(公告)日：2016-04-12

申请号：US14266368

申请日：2014-04-30

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale

IPC: H04L9/32 ,  H04L29/06 ,  H04L9/08

CPC classification number: H04N21/2541 ,  G11B27/10 ,  H04L9/0819 ,  H04L9/0891 ,  H04L9/14 ,  H04L63/0428 ,  H04L2209/24 ,  H04L2209/60 ,  H04N21/2347 ,  H04N21/2387 ,  H04N21/2393 ,  H04N21/42623 ,  H04N21/4627 ,  H04N21/63345 ,  H04N21/8456

Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.

Abstract translation: 提供了一种用于管理关键旋转（使用一系列键）并确保密钥分发在顶级内容传送中的方法。 所提供的方法支持向内容包装引擎提供第一内容加密密钥以对视频流的第一部分进行加密。 一旦第一内容加密密钥已经过期，第二内容加密密钥被提供给内容包装引擎，用于加密视频流的第二部分。 该方法进一步提供客户端设备即将发生的密钥更改通知，以及客户端设备对安全检索新密钥的支持。 还规定了根据该方法的规定实现客户端和服务器基础设施的系统。

公开(公告)号：US20210360304A1

公开(公告)日：2021-11-18

申请号：US17388389

申请日：2021-07-29

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale

IPC: H04N21/254 ,  H04L9/08 ,  H04L29/06 ,  G11B27/10 ,  H04L9/14 ,  H04N21/2347 ,  H04N21/2387 ,  H04N21/239 ,  H04N21/426 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/845

Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.

公开(公告)号：US20230042354A1

公开(公告)日：2023-02-09

申请号：US17973138

申请日：2022-10-25

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale

IPC: H04N21/254 ,  H04L9/08 ,  H04L9/40 ,  G11B27/10 ,  H04L9/14 ,  H04N21/2347 ,  H04N21/2387 ,  H04N21/239 ,  H04N21/426 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/845

Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.

公开(公告)号：US10477257B2

公开(公告)日：2019-11-12

申请号：US15910911

申请日：2018-03-02

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale

IPC: H04L9/32 ,  H04N21/254 ,  H04L9/08 ,  H04L29/06 ,  G11B27/10 ,  H04L9/14 ,  H04N21/2347 ,  H04N21/2387 ,  H04N21/239 ,  H04N21/426 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/845

Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.

公开(公告)号：US10320870B2

公开(公告)日：2019-06-11

申请号：US14572858

申请日：2014-12-17

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Raj Nair ,  Robert Hickey ,  Jianguo Xu

IPC: H04L29/08 ,  H04L29/06 ,  H04N21/222 ,  H04N21/6405 ,  H04N21/647

CPC classification number: H04L65/60 ,  H04L29/0809 ,  H04L29/08099 ,  H04L65/103 ,  H04L65/105 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/605 ,  H04L67/02 ,  H04L67/2842 ,  H04L67/2847 ,  H04N21/222 ,  H04N21/6405 ,  H04N21/64738

Abstract: A method and system is provided for controlling bandwidth rate limiting and client rendering rate limiting in a video delivery network. The method provides network service providers with a means for overriding video delivery data rates selected through dynamic client bitrate adaptation, as well as video data rendering rates of the clients, to limit the impact of network congestion. A system is also specified for implementing a client and a proxy computer in accordance with the method. The system works transparently with standard HTTP-based video delivery systems and includes an HTTP proxy cache infrastructure to support bandwidth rate limiting and client rending rate limiting. The system further provides for administrative overrides of client bitrate selection and client bandwidth usage.

公开(公告)号：US09584847B2

公开(公告)日：2017-02-28

申请号：US14157710

申请日：2014-01-17

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale ,  Daniel Biagini ,  Prabhudev Navali ,  Man Li

IPC: H04N7/173 ,  H04N21/4147 ,  H04N21/433 ,  H04N21/435 ,  H04N21/231 ,  H04N21/2668 ,  H04N21/2747 ,  H04N21/2343 ,  H04N21/262 ,  H04N21/845 ,  H04N21/8547

CPC classification number: H04N21/4147 ,  H04L65/608 ,  H04N21/2187 ,  H04N21/231 ,  H04N21/23109 ,  H04N21/23439 ,  H04N21/26258 ,  H04N21/2668 ,  H04N21/2747 ,  H04N21/4334 ,  H04N21/435 ,  H04N21/47217 ,  H04N21/812 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/8547

Abstract: Live streaming video content is processed and stored for real-time delivery of the content, future VoD viewing of the content, and time-shifted viewing of the content, by manipulating a common manifest or playlist. Previously stored content may be reordered and/or recombined in order to provide a personalized content viewing experience.

Abstract translation: 通过操纵公共清单或播放列表，处理和存储实况流视频内容以便实时地传送内容，未来的视频内容观看和内容的时移观看。 先前存储的内容可以被重新排序和/或重新组合以提供个性化内容观看体验。

公开(公告)号：US11122313B2

公开(公告)日：2021-09-14

申请号：US16672463

申请日：2019-11-03

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale

IPC: H04N21/254 ,  H04L9/08 ,  H04L29/06 ,  G11B27/10 ,  H04L9/14 ,  H04N21/2347 ,  H04N21/2387 ,  H04N21/239 ,  H04N21/426 ,  H04N21/4627 ,  H04N21/6334 ,  H04N21/845

Abstract: A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.

公开(公告)号：US10735800B2

公开(公告)日：2020-08-04

申请号：US15443118

申请日：2017-02-27

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Paul Tweedale ,  Prabhudev Navali ,  Man Li ,  Daniel Biagini

IPC: H04N7/10 ,  H04N7/025 ,  H04N21/4147 ,  H04N21/2343 ,  H04N21/262 ,  H04N21/845 ,  H04N21/8547 ,  H04N21/231 ,  H04N21/2747 ,  H04N21/433 ,  H04N21/435 ,  H04N21/2668 ,  H04L29/06 ,  H04N21/2187 ,  H04N21/472 ,  H04N21/81

Abstract: Live streaming video content is processed and stored for real-time delivery of the content, future VoD viewing of the content, and time-shifted viewing of the content, by manipulating a common manifest or playlist. Previously stored content may be reordered and/or recombined in order to provide a personalized content viewing experience.

公开(公告)号：US10373196B2

公开(公告)日：2019-08-06

申请号：US14168734

申请日：2014-01-30

Applicant: Ericsson AB

Inventor： Kevin J. Ma ,  Robert Hickey ,  Raj Nair ,  Paul Tweedale ,  Daniel Biagini ,  Jianguo Xu ,  Prabhudev Navali

IPC: H04N21/266 ,  H04N21/234 ,  G06Q30/02 ,  H04N21/2668 ,  H04N21/462 ,  H04N21/81 ,  H04N21/44 ,  H04N21/458 ,  H04N21/61 ,  H04N21/8547 ,  H04N21/858 ,  H04L29/06

Abstract: A method is provided for performing targeted ad insertion in over-the-top delivery of content by detecting ad replacement opportunities in a live content stream and preparing the content for seamless replacement with segmented HTTP adaptive streaming delivery. The method includes provisions for multi-stage proxy-based segment replacement for targeted ad delivery. The method provided works transparently with standard HTTP adaptive streaming clients. A system is also specified for implementing a client and server content delivery infrastructure in accordance with the provisions of the method.