| Patent application number | Description | Published |
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| 20080228825 | SYSTEM AND METHOD OF ORGANIZING DATA TO FACILITATE ACCESS AND STREAMING - File formats systems and methods are disclosed that provide a framework that integrates concepts, such as objects based audio-visual representation, meta-data and object oriented programming, to achieve a flexible and generic representation of the audiovisual information and the associated methods to operate on the audiovisual information. A system and method are disclosed for storing data processed from presentation data. The data is stored according to a method comprising coding input presentation data by identifying objects from within the presentation data, coding each object individually and organizing the coded data into access layer data units. The access layer data units are stored throughout a plurality of segments, each segment comprising a segment table in a header portion thereof and those access layer data units that are members of the respective segment, there being one entry in the segment table for each access layer data unit therein. A plurality of extended segments are also stored, each of the extended segments further comprising one or more of the access layer data units that include protocol specific data, the extended segments each represented by a extended segment header. The data of an accessible object is also stored, including an accessible object header and identifiers of the plurality of extended segments, each of the extended segments being a member of the same object. | 09-18-2008 |
| 20090245389 | Object-Based Audio-Visual Terminal And Bitstream Structure - As information to be processed at an object-based video or audio-visual (AV) terminal, an object-oriented bitstream includes objects, composition information, and scene demarcation information. Such bitstream structure allows on-line editing, e.g. cut and paste, insertion/deletion, grouping, and special effects. In the interest of ease of editing, AV objects and their composition information are transmitted or accessed on separate logical channels (LCs). Objects which have a lifetime in the decoder beyond their initial presentation time are cached for reuse until a selected expiration time. The system includes a de-multiplexer, a controller which controls the operation of the AV terminal, input buffers, AV objects decoders, buffers for decoded data, a composer, a display, and an object cache. | 10-01-2009 |
| 20110007219 | Object-Based Audio-Visual Terminal And Bitstream Structure - As information to be processed at an object-based video or audio-visual (AV) terminal, an object-oriented bitstream includes objects, composition information, and scene demarcation information. Such bitstream structure allows on-line editing, e.g. cut and paste, insertion/deletion, grouping, and special effects. In the interest of ease of editing, AV objects and their composition information are transmitted or accessed on separate logical channels (LCs). Objects which have a lifetime in the decoder beyond their initial presentation time are cached for reuse until a selected expiration time. The system includes a de-multiplexer, a controller which controls the operation of the AV terminal, input buffers, AV objects decoders, buffers for decoded data, a composer, a display, and an object cache. | 01-13-2011 |
| Patent application number | Description | Published |
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| 20080211901 | SYSTEM AND METHOD FOR SCALABLE AND LOW-DELAY VIDEOCONFERENCING USING SCALABLE VIDEO CODING - Scalable video codecs are provided for use in videoconferencing systems and applications hosted on heterogeneous endpoints/receivers and network environments. The scalable video codecs provide a coded representation of a source video signal at multiple temporal, quality, and spatial resolutions. | 09-04-2008 |
| 20080239062 | SYSTEM AND METHOD FOR MULTIPOINT CONFERENCING WITH SCALABLE VIDEO CODING SERVERS AND MULTICAST - A multicast scalable video communication server (MSVCS) is disposed in a multi-endpoint video conferencing system having multicast capabilities and in which audiovisual signals are scalably coded. The MVCVS additionally has unicast links to endpoints. The MSVCS caches audiovisual signal data received from endpoints over multicast communication channels, and retransmits the data over either unicast or multicast communication channels to an endpoint that requests the cached data. | 10-02-2008 |
| 20090116562 | Systems And Methods For Signaling And Performing Temporal Level Switching In Scalable Video Coding - Media communication systems and methods for media encoded using scalable coding with temporal scalability are provided. Transmitting endpoints include switching information in their transmitted media to indicate if temporal level switching at a decoder can occur at any frame of the transmitted encoded media. | 05-07-2009 |
| 20090295905 | SYSTEM AND METHOD FOR A CONFERENCE SERVER ARCHITECTURE FOR LOW DELAY AND DISTRIBUTED CONFERENCING APPLICATIONS - Systems and methods for conducting a multi-endpoint video signal conference are provided. Conferencing endpoints are linked by pairs of a reliable and a less reliable communication channel. Conference video signals are scaleable coded in base layer and enhancement layers format. Video signal base layers, which correspond to a minimum picture quality, are communicated over reliable channels. The video signal enhancements layers may be communicated over the less reliable channels. A conference server mediates the switching of video layer information from transmitting endpoints to receiving endpoints without any intermediate coding or re-coding operations. The video conference can be integrated with an audio conference using either scalable coded audio signals or non-scaleable coded audio signals. | 12-03-2009 |
| 20100002069 | System And Method For Improved View Layout Management In Scalable Video And Audio Communication Systems - A system and method for transmitting a plurality of video signals scalably coded into layers including a base layer and one or more enhancement layers and associated audio signals, if any, over a communication network for presentation to one or more end users. A layout to display the plurality of video signals is determined based on a set of criteria and only the data of the video signal layers that are necessary for displaying the video signals in the determined layout, and any associated audio signals, is selectively transmitted over the communication network. | 01-07-2010 |
| 20100067581 | SYSTEM AND METHOD FOR SCALABLE VIDEO CODING USING TELESCOPIC MODE FLAGS - Systems and methods for scalable video coding using special inter-layer prediction modes (called telescopic modes) are provided. These modes facilitate accelerated operation of encoders with improved coding efficiency. | 03-18-2010 |
| 20100215053 | System and Method for the Control of the Transmission Rate in Packet-Based Digital Communications - A transmission bit rate control mechanism for a packet-based communication system in which sender transmission bit rates can vary over time is provided. The transmission bit rate mechanism includes a receiver recording mechanism, which receives transmission time information, computes and records statistical parameters of packets received from a sender; and a receiver processing mechanism, which selectively computes a new transmission bit rate using the recorded statistical parameters, and communicates a new transmission bit rate to the sender. | 08-26-2010 |
