Telefonaktiebolaget Lm Ericsson (Publ)

Mobitv, Inc.

Tivo Corporation

Adeia Media Holdings LLC

Torbjörn Einarsson

Per Fröjdh

Fritz Barnes

Thorsten Lohmar

Clinton Priddle

Ken Klinner

Rickard Sjöberg

Martin Pettersson

Magnus Westerlund

Zhuangfei Wu

Uwe Horn

Do Hyun Chung

Daniel Catrein

Kenth Andersson

J Fritz Barnes

Thomas Rusert

Mats Cedervall

Markus Kampmann

Gunnar Heikkilä

Jan Erik Lindquist

Bo Burman

Jörgen Gustafsson

Ignacio Mas Ivars

Anders Nohlgren

Magnus Andersson

Hans Byström

Xiangchun Tan

Klaus Stuhlmueller

David Nistér

Rickard SJÖBERG

Torsten Lohmar

Techniques and mechanisms described herein facilitate the efficient common storage of partially encrypted content. According to various embodiments, a client device to transmit a designated representation of a media content item via a communications interface may be received. The media content item may be associated with a plurality of representations including the designated representation. The media content item may be associated with first media content data and second media content data. The first media content data may be shared among the plurality of representations. The second media content data may be specific to the designated representation. The first media content data may be combined with the second media content data to create a designated partially encrypted media content portion associated with the designated representation via a processor. The designated partially encrypted media content portion may be transmitted to the client device via the communications interface.

Efficient common storage of partially encrypted content

Media content typically includes closed captioning information such as subtitled in domestic and foreign languages. Techniques and mechanisms provide that closed captioning information may be toggled on/off using menu options and preferences as well as automatically managed by intelligently monitoring the environment surrounding a device. Device sensors such as microphones and vibration monitors determine the noise level of an environment as well as the spectral characteristics of the noise to determine whether the noise profile would interfere with the video playback experience. A particular environmental noise profile could automatically trigger the display of closed captioning information or present an easy access, otherwise unavailable toggle to display closed captioning information associated with a video stream.

Closed captioning management system

Techniques and mechanisms described herein facilitate the management of virtual encoding format converters for live media content streams. A media content system may employ potentially many converters to encode potentially many live video streams. When supporting many live video streams, there may be some streams that are not being viewed by anyone at a particular time. In some such situations, a virtual encoding format converter encoding a live media content stream that is not being viewed may be disabled. Then, live video content associated with the live video stream may be stored in a buffer and updated as new live video content is received. When a user transmits a request to view a stream for which the encoder has been disabled, an format converters for the requested video stream may be enabled. The buffered data may be used to quickly initialize the encoder.

Fast encoding of live streaming media content

Techniques and mechanisms described herein facilitate the management of digital rights for media content item presentation. According to various embodiments, a request for a content decryption key may be received at a media application implemented at a computing device. The request may be transmitted by a media content player implemented at the computing device. The request may be transmitted in accordance with a designated key exchange protocol. A license for an encrypted media content item corresponding with the requested content decryption key may be identified at the media application. Based on information included in the license, encrypted key material may be decrypted to create the requested content decryption key via a processor at the computing device. The requested content decryption key may be provided to the media content player.

Digital rights management for HTTP-based media streaming

The present disclosure relates to a technique of adjusting the download of one or more adjustable content streams, the one or more content streams are provided in a network by a server () for streaming the one or more content streams to one or more clients () and each of the one or more content streams comprises a plurality of content segments. A method embodiment comprises the steps of: generating a manifest file comprising one or more media bit rate candidates each of which indicating an encoded media data rate of the content segments of the one or more content streams, wherein the media data rate candidates are generate by considering a perceived quality of the one or more content streams; and manipulating the manifest file by adjusting at least one of the one or more media data rate candidates based on the available data rate between the server () and the one or more clients () for downloading the content segments.

Network-capacity optimized adaptive HTTP streaming

For streaming data in a mobile communication network, a descriptive file of a stream is provided. The descriptive file comprises a list of delivery source identifiers, e.g. URIs, for unicast delivery of data segments of the stream. A broadcast indicator is selectively added to the descriptive file so as to indicate whether broadcast delivery of the data segments is available. Adding the broadcast indicator and initiating the broadcast delivery may be accomplished on the basis of a popularity of the stream.

Streaming with optional broadcast delivery of data segments

Growing community of inventors

Stockholm, Sweden

Torbjörn Einarsson