Divx, LLC

Sonic Ip, Inc.

Rovi Guides, Inc.

United Video Properties, Inc.

Adeia Guides Inc.

William David Amidei

Jason A Braness

Eric William Grab

Abhishek Shivadas

Kourosh Soroushian

Francis Yee-Dug Chan

Evan Wallin

Tung Lin

Kevin Dean-Yong Wu

Mayur Srinivasan

Cristina Dobrin

Brian Craig Peterson

Michael George Kiefer

Auke Sjoerd Van Der Schaar

Brian Robert Peterson

Paul Jensen

Francis Chan

Fred Zuill

John Mickus

Ronald Mombourquette

Nikolai Popov

Jason David Murray

Aaron McDaniel

Systems and methods for partial frame encryption in accordance with embodiments of the invention are disclosed. In one embodiment, the method receives a video bitstream that includes several frames, each frame including several independently encoded compression units within the frame, encrypts a portion of each of several compression units in several frames, and generates an output bitstream that includes the several independently encoded compression units including the encrypted portions of the compression units.

Systems and methods for protecting elementary bitstreams incorporating independently encoded tiles

Systems and methods for application identification in accordance with embodiments of the invention are disclosed. In one embodiment, a user device includes a processor and memory configured to store an application, a session manager, an application identifier, and at least one shared library, and the processor is configured by the session manager to communicate the application identifier and the application identifier data to an authentication server and permit the execution of the application in response to authentication of the application by the authentication server.

Systems and methods for application identification

Systems and methods for synchronizing the playback of streamed content on multiple playback devices is disclosed. The systems and methods include receiving time information based on a network time source in the playback devices connected to a defined network. The playback clock in each playback device is set based upon the time information. A first playback device then generates presentation time information including a start time for playback and broadcast the presentation time information to the other playback device over the defined network. The playback devices use the presentation time information to adjust the presentation time stamps of the frames of the media content in the stream.

Playback synchronization across playback devices

Systems and methods for synchronizing the playback of OTT or other time sensitive content on multiple playback devices is disclosed. The systems and methods include receiving time information based on a network time source in the playback devices. The playback clock in each playback device is set based upon the time information. Stream initiation information derived using the time information from the network time source is received by each of the playback device from the media provider. The playback devices use the stream initiation information to adjust the presentation time stamps of the frames of the media content in the stream.

Synchronizing multiple over the top streaming clients

Systems and methods for encoding a plurality of alternative streams of video content using multiple encoders in accordance with embodiments of the invention are disclosed. An encoding system includes multiple encoders. Each of the encoders receives a source stream of video content that is divided into portions. Each of the encoders generates portions of the plurality of alternative streams from the portions of the source stream. The portions of the alternative streams generated by a particular encoder are stored in a container for the particular encoder. Each encoder also generates index information for the portion of the alternative stream generated by the encoder that is stored in a manifest for the encoder.

Systems and methods for encoding video content

Systems and methods for quick start-up of playback in accordance with embodiments of the invention are disclosed. Media content may be encoded in a plurality of alternative streams and a quick start-up stream. The quick start-up stream may include media content that is encoded at a lower quality that the alternative streams and may be encrypted with a different, less secure encryption process than that of the alternative streams. During a start-up of playback, the playback device streams the media content from a quick start-up stream until a metric, such as a decryption key for the alternative streams is met. The device then streams the media content from the alternative streams in response to the metric being met.

Systems and methods for quick start-up of playback

A method includes encoding video at a first bitrate to produce first encoded sections, and at a second bitrate that is less than the first bitrate to produce second encoded sections. The method further includes measuring levels of objective quality, indicative of perceptual quality, of the first and second encoded sections. The method includes determining, based on the measured objective quality levels, replaceable sections among the first encoded sections, and replacement sections among the second encoded sections, each of the replacement sections to replace a corresponding one of the replaceable sections. The method includes streaming the first encoded sections except for the replaceable sections, and the replacement sections instead of their corresponding replaceable sections.

Use of objective quality measures of streamed content to reduce streaming bandwidth

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San Diego, CA, United States of America

William David Amidei