| BRITISH TELECOMMUNICATIONS plc Patent applications |
| Patent application number | Title | Published |
|---|
| 20120102516 | COMMUNICATIONS SYSTEM - Supplementary data associated with a broadcast transmission ( | 04-26-2012 |
| 20110131312 | METHOD OF OPERATING A TELECOMMUNICATIONS NETWORK - In a method of operating a data network comprising a plurality of interconnected nodes ( | 06-02-2011 |
| 20090232214 | Video coding and decoding - A decoder for video signals, such as MPEG, which uses motion-compensated bidirectional predictive coding, performs concealment of lost or corrupted portions of a picture. For this purpose, it estimates missing motion vectors by combining the two vectors which accompany a bidirectionally coded frame to create a substitute vector. An encoder can be modified to enhance this decoder operation, including forcing at least one frame per group of frames to be coded using bidirectional prediction, and constraining the two vectors so that the substitute vector is closer to the wanted value. | 09-17-2009 |
| 20090116551 | Data streaming system and method - A data streaming system and method typically use a server arranged to stream one of a plurality of encoded data streams to a client. Each of the plurality of data streams may be an independent representation of a common data source encoded at a different resolution to the other of the plurality of data streams. The server can include a transmitter and a first buffer. The transmitter can be arranged to transmit data packets of the encoded data stream to the client via the first buffer. The transmitter can be arranged to monitor the content of the first buffer and switch to transmit another of the plurality of data streams in the event that predetermined criteria are detected from the first buffer. | 05-07-2009 |
