Patent application number | Description | Published |
20090132599 | HIERARCHICAL AND REDUCED INDEX STRUCTURES FOR MULTIMEDIA FILES - Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with indexes associated with the content data of the multimedia files. Through the use of the indexes, playback of the content is enhanced without significantly increasing the file size of the multimedia file. | 05-21-2009 |
20090132721 | Chunk Header Incorporating Binary Flags and Correlated Variable-Length Fields - Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with flags associated with the content data of the multimedia files. Through the use of the flags, playback of the content is enhanced without significantly increasing the file size of the multimedia file. | 05-21-2009 |
20090136216 | System and Method for Playback of Partially Available Multimedia Content - Critical information or playback data is included in a media file thereby enabling multimedia content to be decoded and presented even when only some of the multimedia content is partially available. | 05-28-2009 |
20090169181 | APPLICATION ENHANCEMENT TRACKS - Systems and methods of providing enhanced digital media playback through application enhancement tracks are described. Application enhancement tracks are derived from the main content that they are associated with and are encoded to aid the performance of one or more functions related to the content, such as visual-search. | 07-02-2009 |
20090303241 | SYSTEMS AND METHODS FOR FONT FILE OPTIMIZATION FOR MULTIMEDIA FILES - Methods and systems of generating and displaying textual information for a multimedia file are provided. An optimized font file is created that matches the text data of the multimedia file and optionally a number of predetermined text characters. The optimized font file may also be further configured to conform to a specific memory and/or timing constraint. | 12-10-2009 |
20090307258 | MULTIMEDIA DISTRIBUTION AND PLAYBACK SYSTEMS AND METHODS USING ENHANCED METADATA STRUCTURES - A metadata systems and methods are provided that enhance the playback features of multimedia files. A metadata structure is used that includes metadata tags and objects to allow access to various data typically not available to most playback devices. | 12-10-2009 |
20120170642 | SYSTEMS AND METHODS FOR ENCODING TRICK PLAY STREAMS FOR PERFORMING SMOOTH VISUAL SEARCH OF MEDIA ENCODED FOR ADAPTIVE BITRATE STREAMING VIA HYPERTEXT TRANSFER PROTOCOL - Systems and methods for performing smooth visual search of media encoded for adaptive bitrate streaming using trick play streams are disclosed. One embodiment of the invention includes transcoding a selected portion of the source video into a portion of trick play stream video for inclusion in a trick play stream using the source encoder, where the portion of trick play stream video is encoded at a lower frame rate and a lower resolution than the source video, writing the trick play stream to a separate container file using the source encoder, and adding an entry to an index that identifies the location of each frame in the portion of trick play stream video within the container file containing the trick play stream. | 07-05-2012 |
20120170643 | SYSTEMS AND METHODS FOR ENCODING MEDIA INCLUDING SUBTITLES FOR ADAPTIVE BITRATE STREAMING - Systems and methods for adaptive bitrate streaming of media including subtitles utilizing HTTP in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes selecting a portion of the source media using the source encoder, transcoding the selected portion of the source media into a plurality of alternative portions of encoded video, where each alternative portion is encoded using a different set of encoding parameters and commences with an intra frame at the start of a closed group of pictures (GOP), writing each of the alternative portions of encoded video to a separate container file using the source encoder, writing a subtitle stream segment from each subtitle track corresponding to the selected portion of the source media to a separate container file using the source encoder, and associating a font file with at least one of the container files containing subtitle stream segments. | 07-05-2012 |
20120170906 | SYSTEMS AND METHODS FOR ADAPTIVE BITRATE STREAMING OF MEDIA INCLUDING SUBTITLES - Systems and methods for adaptive bitrate streaming of media including subtitles utilizing Hypertext Transfer Protocol (HTTP) in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes requesting and buffering portions of video from at least one of the alternative streams using a playback device, requesting information indicative of a font utilized by a font-rendering engine to render text from a selected subtitle stream, downloading at least one font file when the font is not present on the playback device, requesting and buffering at least a portion of the selected subtitle stream, decoding the buffered portions of video using a decoder on the playback device, rendering the portions of the subtitle stream corresponding to the buffered portion of video using a font-rendering engine configured by the at least one downloaded font file, and performing synchronized playback of the decoded video and rendered subtitles using the playback device. | 07-05-2012 |
20120170915 | SYSTEMS AND METHODS FOR PERFORMING SMOOTH VISUAL SEARCH OF MEDIA ENCODED FOR ADAPTIVE BITRATE STREAMING VIA HYPERTEXT TRANSFER PROTOCOL USING TRICK PLAY STREAMS - Systems and methods for performing smooth visual search of media encoded for adaptive bitrate streaming using trick play streams are disclosed. One embodiment of the invention includes requesting and buffering portions of video from at least one of the alternative streams using a playback device, decoding the buffered portions of video using a decoder on the playback device, receiving at least one user instruction directing the playback device to perform a visual search of the media, requesting and buffering portions of video from the trick play stream using the playback device, and decoding the buffered portions of the trick play stream using a decoder on the playback device. | 07-05-2012 |
20120173751 | SYSTEMS AND METHODS FOR ADAPTIVE BITRATE STREAMING OF MEDIA STORED IN MATROSKA CONTAINER FILES USING HYPERTEXT TRANSFER PROTOCOL - Systems and methods for adaptive bitrate streaming of media stored in Matroska container files utilizing Hypertext Transfer Potocol (HTTP) in accordance with embodiments of the invention are disclosed. In one embodiment, a processor configured, via a client application, to request portions of files from a remote server. In addition, the client application further configures the processor to retrieve top level index data that identifies a plurality of EBML container files and describes at least a maximum bitrate of the alternative streams contained within the EBML container files, parse the top level index data to obtain information identifying the plurality of EBML container files, request a portion of at least one of the EBML container files that contains the at least one element that specifies the encoding parameters of the stream contained within the EBML container file, retrieve an index that references each element containing portions of encoded video within at least one of the EBML container files, utilize the index to request portions of a first EBML container file that includes elements that contain portions of encoded video, receive and buffer the requested elements, decode the encoded video contained within the buffered elements utilizing the encoding parameters, measure current streaming conditions, and select another of the EBML container files from which to retrieve elements containing portions of encoded video for decoding, where the selection is based upon the measured streaming conditions and the description of the bitrate of the alternative stream contained within the top level data. | 07-05-2012 |
20130007200 | SYSTEMS AND METHODS FOR DETERMINING AVAILABLE BANDWIDTH AND PERFORMING INITIAL STREAM SELECTION WHEN COMMENCING STREAMING USING HYPERTEXT TRANSFER PROTOCOL - Systems and methods for determining available bandwidth and performing initial stream selection when commencing adaptive bitrate streaming using Hypertext Transfer Protocol (HTTP) in accordance with embodiments of the invention are disclosed. One embodiment includes performing a bandwidth probe to obtain an estimate of the available bandwidth between a playback device and a remote server, where the bandwidth probe comprises the playback device requesting blocks of data of increasing size from the remote server until the time taken to download a requested block exceeds a predetermined threshold, selecting an initial stream from said plurality of streams of encoded media that are encoded at different maximum bitrates rates using the playback device based upon the maximum bitrates of the plurality of streams and the estimated available bandwidth, and commencing streaming of encoded media by requesting portions of the encoded media from the initial streams using the playback device. | 01-03-2013 |
20130007263 | Systems and Methods for Estimating Available Bandwidth and Performing Initial Stream Selection When Streaming Content - Systems and methods for determining available bandwidth and performing initial stream selection when commencing adaptive bitrate streaming using Hypertext Transfer Protocol (HTTP) in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes measuring network bandwidth using a playback device, determining an initial network bandwidth estimate using the network bandwidth measurements, selecting an initial stream from said plurality of streams of encoded media that are encoded at different maximum bitrates rates using the playback device based upon the maximum bitrates of the plurality of streams and the initial bandwidth estimate; and commencing streaming of encoded media by requesting portions of the encoded media from the initial streams using the playback device. | 01-03-2013 |
20130007297 | Systems and Methods for Performing Multiphase Adaptive Bitrate Streaming - Multiphase adaptive bitrate streaming systems and methods in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes a processor configured to request portions of files. In addition, the processor streams encoded media in a first operational phase utilizing a first set of stream switching conditions. When at least one phase transition criterion is satisfied, the client application configures the processor to transition to a second operational phase utilizing a second set of stream switching conditions. | 01-03-2013 |
20130044821 | SYSTEMS AND METHODS FOR ENCODING SOURCE MEDIA IN MATROSKA CONTAINER FILES FOR ADAPTIVE BITRATE STREAMING USING HYPERTEXT TRANSFER PROTOCOL - Systems and methods for encoding source media in Matroska container files for adaptive bitrate streaming utilizing Hypertext Transfer Potocol (HTTP) in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes a processor configured via a source encoding application to ingest at least one multimedia file containing a source video. In addition, the source encoding application further configures the processor to select a portion of the source video, transcode the selected portion of the source video into a plurality of alternative portions of encoded video, where each alternative portion is encoded using a different set of encoding parameters and commences with an intra frame starting a closed Group of Pictures (GOP), write each of the alternative portions of encoded video to an element of a different EBML container file, where each element is located within an EBML container file that also includes another element that indicates the encoding parameters used to encode the alternative portion of encoded video, and add an entry to at least one index that identifies the location of the element containing one of the alternative portions of encoded video within each of the EBML container files. | 02-21-2013 |
20130054958 | Systems and Methods for Performing Adaptive Bitrate Streaming Using Automatically Generated Top Level Index Files - Systems and methods for performing adaptive bitrate streaming using top level index files automatically generated based upon the capabilities of a playback device in accordance with embodiments of the invention are disclosed. One embodiment of the method of the invention includes requesting a top level index file from a playback server using a playback device, where the request identifies a piece of content and includes information describing the capabilities of the playback device, receiving a top level index file from the playback server using the playback device, where the top level index file describes a plurality of streams accessible to the playback device and identifies the location of the streams, selecting initial streams using the playback device, and retrieving at least a portion of the initial streams from the locations identified in the top level index file using the playback device. | 02-28-2013 |
20130055084 | HIERARCHICAL AND REDUCED INDEX STRUCTURES FOR MULTIMEDIA FILES - Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with indexes associated with the content data of the multimedia files. Through the use of the indexes, playback of the content is enhanced without significantly increasing the file size of the multimedia file. | 02-28-2013 |
20130058480 | SYSTEMS AND METHODS FOR SAVING ENCODED MEDIA STREAMED USING ADAPTIVE BITRATE STREAMING - Systems and methods for saving encoded media streamed using adaptive bitrate streaming in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a playback device configured to perform adaptive bitrate streaming of media includes a video decoder application and a processor, where the video decoder application configures the processor to select a download stream from a set of alternative streams of video data, measure streaming conditions and request a stream of video data from the alternative streams of video data, receive portions of video data from the requested stream of video data, decode the received video data, save the received video data to memory, when the received video data is from the download stream and separately download and save the corresponding portion of video data from the download stream to memory, when the received video data is not from the download stream. | 03-07-2013 |
20130061040 | SYSTEMS AND METHODS FOR PROTECTING ALTERNATIVE STREAMS IN ADAPTIVE BITRATE STREAMING SYSTEMS - Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment includes a processor, and non-volatile storage containing an encoding application. In addition, the encoding application configures the processor to: receive source content; obtain common cryptographic information; encode the source content as a plurality of streams including a plurality of alternative streams of content; and protect the plurality of alternative streams of content using the common cryptographic information. | 03-07-2013 |
20130061045 | Systems and Methods for Playing Back Alternative Streams of Protected Content Protected Using Common Cryptographic Information - Systems and methods for performing adaptive bitrate streaming using alternative streams of protected content in accordance with embodiments of the invention are described. One embodiment of the invention includes a processor, and memory containing a client application. In addition, the client application configures the processor to: request a top level index file identifying a plurality of alternative streams of protected content, where each of the alternative streams of protected content are encrypted using common cryptographic information; obtain the common cryptographic information; request portions of content from at least the plurality of alternative streams of protected content; access the protected content using the common cryptographic information; and playback the content. | 03-07-2013 |
20130114944 | CHUNCK HEADER INCORPORATING BINARY FLAGS AND CORRELATED VARIABLE-LENGTH FIELDS - Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with flags associated with the content data of the multimedia files. Through the use of the flags, playback of the content is enhanced without significantly increasing the file size of the multimedia file. | 05-09-2013 |
20140003501 | Systems and Methods for Compressing Geotagged Video | 01-02-2014 |
20140003799 | SYSTEMS AND METHODS FOR DECODING A VIDEO SEQUENCE ENCODED USING PREDICTIONS THAT INCLUDE REFERENCES TO FRAMES IN REFERENCE SEGMENTS FROM DIFFERENT VIDEO SEQUENCES | 01-02-2014 |
20140006635 | ADAPTIVE STREAMING OF MULTIMEDIA | 01-02-2014 |
20140088952 | SYSTEMS AND METHODS FOR AUTOMATIC PROGRAM RECOMMENDATIONS BASED ON USER INTERACTIONS - Methods and systems are provided for generating automatic program recommendations based on user interactions. In some embodiments, control circuitry processes verbal data received during an interaction between a user of a user device and a person with whom the user is interacting. The control circuitry analyzes the verbal data to automatically identify a media asset referred to during the interaction by at least one of the user and the person with whom the user is interacting. The control circuitry adds the identified media asset to a list of media assets associated with the user of the user device. The list of media assets is transmitted to a second user device of the user. | 03-27-2014 |
20140096269 | SYSTEMS AND METHODS FOR FAST STARTUP STREAMING OF ENCRYPTED MULTIMEDIA CONTENT - Methods and systems to allow for the streaming of media from a file server to a client, where the streaming occurs concurrently with the execution of an information security protocol. The security protocol allows the client to securely receive one or more keys that allow the client to access the media. This permits a user to access the media sooner than would otherwise be possible, while allowing timely performance of security related processing. | 04-03-2014 |
20140250473 | Systems and Methods for Performing Smooth Visual Search of Media Encoded for Adaptive Bitrate Streaming via Hypertext Transfer Protocol Using Trick Play Streams - Systems and methods for performing smooth visual search of media encoded for adaptive bitrate streaming using trick play streams are disclosed. One embodiment of the invention includes requesting and buffering portions of video from at least one of the alternative streams using a playback device, decoding the buffered portions of video using a decoder on the playback device, receiving at least one user instruction directing the playback device to perform a visual search of the media, requesting and buffering potions of video from the trick play stream using the playback device, and decoding the buffered portions of the trick play stream using a decoder on the playback device. | 09-04-2014 |
20140359075 | Synchronizing Multiple Over The Top Streaming Clients - 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. | 12-04-2014 |
20140365651 | Systems and Methods for Estimating Available Bandwidth and Performing Initial Stream Selection When Streaming Content - Systems and methods for determining available bandwidth and performing initial stream selection when commencing adaptive bitrate streaming using Hypertext Transfer Protocol (HTTP) in accordance with embodiments of the invention are disclosed. One embodiment of the invention includes measuring network bandwidth using a playback device, determining an initial network bandwidth estimate using the network bandwidth measurements, selecting an initial stream from said plurality of streams of encoded media that are encoded at different maximum bitrates rates using the playback device based upon the maximum bitrates of the plurality of streams and the initial bandwidth estimate; and commencing streaming of encoded media by requesting portions of the encoded media from the initial streams using the playback device. | 12-11-2014 |
20150019866 | Systems and Methods for Automatically Generating Top Level Index Files - Systems and methods for automatically generating top level index files for use in adaptive bitrate streaming in accordance with embodiments of the invention are disclosed. One embodiment of the method of the invention includes receiving a request from a playback device at a playback server, where the request identifies a piece of content, retrieving a list of assets associated with the identified piece of content using the playback server, filtering the list of assets using at least one predetermined criterion using the playback server, generating a top level index file describing each asset in the filtered list of assets using the playback server, and sending the top level index file to the playback device using the playback server. | 01-15-2015 |