A method for transmitting encoded media data on the basis of a layer model includes dividing the media data onto a basic layer and at least one additional enhanced layer, transmitting the basic layer and the at least one enhanced layer via at least two network accesses, selecting a first network access to transmit the basic layer that has a network quality and/or stability that is sufficient for transmitting the basic layer; and selecting at least one second network access from among the network accesses depending upon the bandwidth of the first network access and the quality and stability of the network accesses for transmitting the at least one enhanced layer. An apparatus can be configured to execute the method. In some embodiments, the apparatus can include a communication system, a server computer device and/or a mobile terminal.

The reception side can easily acquire at least function enhancement information inside a codec. Image data of each picture of a base layer is encoded to generate a first encoded stream, and image data of each picture of an enhanced layer is encoded to generate a second encoded stream. The first encoded stream and the second encoded stream are transmitted. Function enhancement information including at least function enhancement information inside a codec is transmitted outside the encoded stream. For example, the function enhancement information further includes function enhancement information outside the codec.

A universal serial bus (USB) dongle device includes a USB interface for receiving a video signal in a first format and for sending a processed video signal in a second format wherein the first format differs from the second format. An encoding module generates the processed video signal based on the video signal. In a further embodiment, A video card includes a video receiver for receiving a video signal in a first format, based on a selection command. An encoding module generates a processed video signal in a second format based on the video signal, wherein the first format differs from the second format. A USB interface transfers the processed video signal to the host device, receives the selection command from the host device and receives a power signal from the host device to power the video receiver and the encoding module.

Multi-link transportation of media, video and other data of the type having multiple layers, streams and/or encodings is contemplated. The multi-link transportation may be facilitated with a scheduler configured to schedule the various layers, streams, encodings, etc. for transportation over selectable communication links, such as based on reliability, capacity and/or other operating characteristics.

An intermediary system and method may be provided for assisting a receiver system in processing video data which is streamed as a video stream to the receiver system via a network. The processing of the video data by the receiver system may be dependent on an analysis of the video data. The intermediary system may provide processing assist data to the receiver system which comprises an analysis result or a processing instruction derived from the analysis results. Accordingly, the receiver system may process the video data without a need for the receiver system itself to analyze the video data, thereby offloading computational complexity to the intermediary system. Compared to techniques in which most or all of the processing is performed by the intermediary system, an advantage of continuing to process the video data at the receiver system is that the receiver system may already decode the video stream while the video stream is decoded and/or analyzed by the intermediary system, thereby reducing the delay from transmission to display of the video stream.

Disclosed are an electronic device and a method for controlling the electronic device. Specifically, the electronic device according to the present disclosure receives a first image signal and a second image signal which are separated from an original image signal through a first channel and a second channel having different frequency bandwidths, and which have different data rates. When the first image signal and the second image signal are received, the electronic device determines whether an error exists in the second image signal, obtains a first output image signal and a second output image signal on the basis of the first image signal and the second image signal according to a result of the determination, and outputs the obtained first output image signal or second output image signal.

An apparatus of processing a digital service signals and a method thereof are disclosed. The present invention includes a receiving module configured to receive declarative contents and a first PDI (Profiles, Demographics, Interests) table including a first PDI question having a first question id for identifying the first PDI question and receive a second PDI table including a second PDI question having a second question id for identifying the second PDI question, an obtaining module configured to obtain an answer to the first PDI question, a storing module configured to store the obtained answer to the first PDI table, a fetching module configured to fetch the stored answer to the second PDI question by using the first question id and the second question id, wherein the first question id is equal to the second question id, wherein the storing module further stores the fetched answer to the second PDI table and a downloading module configured to download contents using the fetched answer, wherein the declarative contents fetches the stored answer by using an API (Application Programming Interface).

According to one embodiment, communication device includes communication module, operation module, image generator, and transmission controller. The operation module receives user operation. The image generator generates a first display image displayed on a display screen of a target device. The transmission controller performs, when there are contents to be transmitted to the target device and requiring copyright protection, controlling so as to generate the first display image comprising the contents to be transmitted and to transmit the generated first display image to the target device in a certain copyright protection system. Further, the transmission controller performs, when there are contents to be transmitted to the target device and requiring no copyright protection, controlling so as to generate the first display image comprising the contents to be transmitted and an image corresponding to the user operation and to transmit the generated first display image to the target device.

The invention relates to a distribution method for a multimedia stream multiplexed via a network, the multiplexed multimedia stream comprising multimedia and signalling components, the components being divided into elementary packets of the multiplexed multimedia stream transmitted on at least one transport channel of the network. This method comprises a step of selection of elementary packets of the multiplexed multimedia stream incorporated in transport packets, wherein each of the elementary packets of the signalling components are incorporated in transport packets transmitted on a first of the at least one transport channel, and wherein others transport packets comprising at least one elementary packet and a part only of the multimedia components, are transmitted on a transport channel. This method further comprises a step of transmission of transport packets on each of the transport channels, comprising a step of definition of a first sequence number for each of the transport packets of each of the transport channels and a second sequence number for each of the elementary packets, the first sequence number being incremented for each of the transport packets, independently on each of the transport channels, the second sequence number being incremented for each of the elementary packets.

The present invention relates to a reception device and a method for the processing of multimedia data flows in said device comprising an interface to a first network and an interface to a second network, said method comprising the following steps: receive, from the first network, a first flow comprising multimedia data through a first transport protocol fitted with a first data synchronization system; receive, from the second network, a second flow comprising multimedia data through a second transport protocol fitted with a second data synchronization system, said second synchronization system being based on timing references different from those of the first data synchronization system; characterized in that said first and second flows transport the same synchronization information in the payload field of the first and of the second transport protocol, said synchronization information comprising data indicating the moment from which said multimedia data must be rendered; synchronize said first and second flows by using said synchronization information; and perform a step for rendering said first and second multimedia flows.