Disclosed is a payload mapper including N mapper(s), each of which includes a controller, multiple mapping circuits, an output control circuit, and a storage circuit. The controller includes: a decoding circuit receiving a first-format signal and decoding at least a part of this signal to find out the type of a control signal relating to the first-format signal; and a conversion control circuit generating a selecting signal according to the type of the control signal to choose one of the mapping circuits. The mapping circuits receive the first-format signal and selecting signal, and the selected mapping circuit converts the first-format signal into a second-format signal according to the selecting signal. The output control circuit is coupled to the mapping circuits and outputs at least a part of the second-format signal as an effective output signal. The storage circuit temporarily stores the effective output signal and then outputs it.

A method and an apparatus for processing a high dynamic range (HDR) video including a subtitle, where the method includes: encapsulating HDR video data into a video data frame that matches a transmission interface; encapsulating subtitle information into a subtitle information frame that matches the transmission interface; and separately transmitting the video data frame and the subtitle information frame to a display device through the transmission interface, where the video data frame and the subtitle information frame are packets in two types of formats. According to the method provided in this application, content and subtitle information of a dynamic metadata HDR video are separately transmitted to the display device. In this way, the display device can obtain the separated video content and subtitle information, and then separately perform corresponding processing on the HDR video and a subtitle.

A method and an apparatus for processing a high dynamic range (HDR) video including a subtitle, where the method includes: encapsulating HDR video data into a video data frame that matches a transmission interface; encapsulating subtitle information into a subtitle information frame that matches the transmission interface; and separately transmitting the video data frame and the subtitle information frame to a display device through the transmission interface, where the video data frame and the subtitle information frame are packets in two types of formats. According to the method provided in this application, content and subtitle information of a dynamic metadata HDR video are separately transmitted to the display device. In this way, the display device can obtain the separated video content and subtitle information, and then separately perform corresponding processing on the HDR video and a subtitle.

A gateway for connection to a closed network of a railroad technical system has a network adapter for establishing a network connection to an external network. A video signal adapter can establish a video signal connection to the railroad technical system, and/or a device signal adapter can establish a device signal connection to the railroad technical system. At least one conversion facility is connected to both the network adapter and the video signal transmitter and/or the device signal adapter and converts the video or device signal connection data of the railroad technical system into external network data. The gateway thus provides particularly secure access to the closed network of the railroad technical system. There is also described a method for operating a gateway for connection to a closed network of a railroad technical system.

A gateway for connection to a closed network of a railroad technical system has a network adapter for establishing a network connection to an external network. A video signal adapter can establish a video signal connection to the railroad technical system, and/or a device signal adapter can establish a device signal connection to the railroad technical system. At least one conversion facility is connected to both the network adapter and the video signal transmitter and/or the device signal adapter and converts the video or device signal connection data of the railroad technical system into external network data. The gateway thus provides particularly secure access to the closed network of the railroad technical system. There is also described a method for operating a gateway for connection to a closed network of a railroad technical system.

Recommending and activating scenes in a multimedia system are provided. The techniques of the present disclosure can allow the states of the components in the multimedia system to be captured in a scene. Once the scene has been saved, the scene can be activated at a later time. A controller device for recommending scenes by comparing the current state with states of components in saved scenes is also provided. The controller device can also determine if media is playing in a current scene, and activate a selected scene without playing the media content. Once the selected scene is activated, the media playing in the current scene can be switched, and the media playing in the selected scene can be played.

Recommending and activating scenes in a multimedia system are provided. The techniques of the present disclosure can allow the states of the components in the multimedia system to be captured in a scene. Once the scene has been saved, the scene can be activated at a later time. A controller device for recommending scenes by comparing the current state with states of components in saved scenes is also provided. The controller device can also determine if media is playing in a current scene, and activate a selected scene without playing the media content. Once the selected scene is activated, the media playing in the current scene can be switched, and the media playing in the selected scene can be played.

An electronic apparatus is provided. The electronic apparatus according to an example embodiment includes a communication interface and a processor configured to provide a video content and dynamic metadata corresponding to each content section of the video content to an external display apparatus through the communication interface, each content section comprising a plurality of frames, wherein the processor is further configured to transmit the dynamic metadata to the external display apparatus on a frame-by-frame basis, and based on a graphic content being activated, provide data to the display apparatus by converting dynamic metadata corresponding to a content section where the graphic content is activated into static metadata during a plurality of frames.

An electronic apparatus is provided. The electronic apparatus according to an example embodiment includes a communication interface and a processor configured to provide a video content and dynamic metadata corresponding to each content section of the video content to an external display apparatus through the communication interface, each content section comprising a plurality of frames, wherein the processor is further configured to transmit the dynamic metadata to the external display apparatus on a frame-by-frame basis, and based on a graphic content being activated, provide data to the display apparatus by converting dynamic metadata corresponding to a content section where the graphic content is activated into static metadata during a plurality of frames.

The present technology relates to a transmission device, a reception device, a control method, a program, and a transmission and reception system capable of increasing a data transmission efficiency.

In a case where a data stream is transmitted in a predetermined mode, and when a parameter that defines content of the mode is changed, the transmission device according to one aspect of the present technology switches transmission of the data stream in the mode defined by the changed parameter is started after training processing for performing data synchronization and correction of a difference between data timings of the lanes by the reception device is executed or is started without executing the training processing according to a type of a parameter to be changed. The present technology is applied to data transmission between chips.