Abstract:
Systems and methods are disclosed for providing downstream signals to a plurality of receiver networks. A receiver network (i.e., a networked multimedia system) includes a splitter/isolation module (SIM), a primary set-top terminal (STT), and at least one point of deployment module. The point of deployment module communicates with the primary STT via the SIM over coaxial cable. Accordingly, the point of deployment module and connected television utilize some or all of the features including hardware and software that are included in the primary STT via the networked multimedia system.
Abstract:
Systems and methods are disclosed for providing downstream signals to a plurality of receiver networks. A receiver network (i.e., a networked multimedia system) includes a splitter/isolation module (SIM), a primary set-top terminal (STT), and at least one point of deployment module. The point of deployment module communicates with the primary STT via the SIM over coaxial cable. Accordingly, the point of deployment module and connected television utilize some or all of the features including hardware and software that are included in the primary STT via the networked multimedia system.
Abstract:
As the amount of audiovisual data that can be received by consumers increases rapidly, there is an increasing need for proper summarisation of audiovisual data like films. Thereto, the invention provides a method of creating a multimedia summary of a stream of audiovisual data like a film. First, a textual summary is retrieved (204). Next, the stream of audiovisual data is segmented (208) and information is extracted from the stream of audiovisual data (210) and the textual summary (206). Finally, segments are selected (212) that carry information matching information carried by the textual summary. Summaries of films and series are abundantly available on the internet and are made by and for devotees, providing a reliable seed for creating a multimedia summary.
Abstract:
A system and method is provided for adaptively changing as error protection strategy for a digital video transmission depending upon the characteristics of a transmission channel (120). A video classification processor (210) located in a video encoder (114) analyzes a video sequence and (1) determines priority classes for video data packets based on objective criteria, and (2) determines sequence dependent features of the video sequence, and (3) classifies the video data packets in sub-priorities based on the sequence dependent features of the video sequence. The system can also re-classify video data packet priorities based on objective criteria using either the sequence dependent features of the video sequence or an error concealment algorithm.
Abstract:
A data processing device includes: a dummy packet processing section for generating a plurality of dummy packets each having a dummy identifier and generating a reproduction stream containing a dummy packet at a predetermined interval; a detection section for scanning identifiers of the respective packets of the reproduction stream to detect a dummy identifier, which is followed by detecting a first code specifying the data position of a first part of the content, outputting a first detection signal, detecting a second code specifying the data position of a second part, and outputting a second detection signal; a switch for receiving the reproduction stream and selectively passing the content data in the first part of the content according to the first detection signal and the second detection signal; and a decode section for reproducing the first part of the content according to the output from the switch.
Abstract:
A receiver for receiving an MPEG encrypted transport stream and outputting audio and video signals comprising: a decryptor adapted to receive and decrypt the encrypted transport stream; a de-multiplexer adapted to convert the decrypted transport stream to audio and video elementary streams and to change the values in presentation time stamp and decoding time stamp fields of each packet of the audio and elementary streams to match the time of a receiver record clock; a storage sub-system adapted to store the audio and the video elementary streams and to change the values in the presentation time stamp and decoding time stamp fields of each header of the audio and video elementary streams to compensate for the amount of time the audio and video elementary streams are stored; and audio and video decoders to decode the audio and video elementary streams respectively.
Abstract:
This invention relates to the field of multimedia communications. More particularly, this invention is a method and system for compressing, decompressing, and transmitting non-uniform, low bit rate, multimedia content over a communication network linking a PSTN and a packet network. With reference to (fig.4), corresponding audio and video packets that represent multimedia content are endcoded separately (410). A system media stream including the corresponding audio and video packets is generated (410). A header generation module uses the system media stream to generate a network media stream (420). A network data stream is sent to a receiving network (425). Intelligent network stream management is performed for each packet of the received network data stream (435). The packets are forwarded to the multimedia consumer module (440). The multimedia consumer module decodes the data and presents it to receiver (445).
Abstract:
A transmitter (10) for transmitting a multiplex signal (20) containing a number of tables with information about the signal (11) to a receiver (12), capable of selecting some or all of these tables (26) from the signal (20) and storing them on a table storage medium (22). The stored tables (27) are transmitted for example when the receiver (12) requests them, or when the information therein is updated. By storing these tables in the transmitter (10), the problem that the receiver has to wait for them to occur in the multiplex signal (10) is overcome.