A system for transmission of imaging metadata comprises a sensor configured to capture audiovisual data and a data transmission device. The data transmission device receives captured audiovisual data from the first sensor and receives metadata, wherein the metadata is metadata of a first type. The data transmission device generates a data structure corresponding to a first frame of a video feed, wherein the data structure is generated in accordance with a predefined data specification, wherein generating the data structure comprises setting an indicator in the data structure to indicate that a second type of metadata should not be read from a first field in the data structure and writing the first metadata to the first field in the data structure. The data transmission device transmits the data structure along with the captured audiovisual data.

The present invention provides a signal processing device including a receiver, a signal processor and a transmitter. The receiver is configured to receive a first video signal. The signal processor is coupled to the receiver and configured to support a plurality of scene modes, select a current scene mode form the plurality of scene modes according to a user input, and operate in the current scene mode to process the first video signal to generate a second video signal. The transmitter is configured to output the second video signal.

A method for switching audio-visual interfaces and a circuit system are provided. The circuit system is disposed in a sink device. A protocol layer circuit of each of audio-visual interfaces in the sink device includes a status and control data channel control module, which is used to respond to the signals sent by the video sources continuously when the sink device is connected with audio-visual sources via the audio-visual interfaces. The multiple video sources can accordingly send FRL (fixed rate link) signals to the sink device in response to responses made by the sink device. The protocol layer circuit includes an FRL audio-visual packet detection module that starts to detect a rate of an FRL and resolve audio-visual packets for obtaining audio-visual data for the audio-visual interface that the sink device switches to.

A streaming media device includes a printed circuit board hosting components configured to access internet data. An audio/visual connector is linked to the printed circuit board, wherein the audio/visual connector is adapted for connection to an audio/visual device, wherein the audio/visual connector is adapted to operate with a first audio/visual interface having sufficient power to fully operate the printed circuit board and a second audio/visual interface having insufficient power to fully operate the printed circuit board. A power connector is linked to the printed circuit board, wherein the power connector selectively receives power based on the audio/visual connector utilizing one of the first audio/visual interface and the second audio/visual interface.

Embodiment(s) for a service system, a digital device and a method of processing service thereof are disclosed in the present disclosure. In this case, according to one embodiment, a digital device of processing ultra-high definition (UHD) video data includes a receiving unit configured to receive a first signal containing first UHD video data and signaling data for the first UHD video data, a decoder configured to decode the signaling data from the first signal, a user interface unit configured to receive a second signal requesting for converting the first UHD video data to second UHD video data through a remote controller, a controller configured to control a converter to convert the first UHD data to the second UHD data in response to the received second signal, the converter and a display configured to display the converted second UHD video data on a display screen.

To enable uncompressed RAW data to be appropriately transmitted from an imaging device to an external device. A transmission unit transmits uncompressed RAW data to an external device via a transmission path. In a case where the external device does not support the uncompressed RAW data, the control unit controls the transmission unit so as not to perform output processing for outputting the uncompressed RAW data to the transmission path. For example, the information reception unit receives identification information indicating that the external device supports the uncompressed RAW data from the external device via the transmission path.

The present disclosure provides a method for transmitting video data by a source device, by using a high definition media interface (HDMI). In particular, the method comprises the steps of: receiving, from a sink device, capability information about whether reference display model (RDM)-based image processing of the sink device is supported; performing the RDM-based image processing on a plurality of pieces of video data, on the basis of the received capability information; and transmitting, to the sink device, (i) the plurality of pieces of video data on which the RDM-based image processing is performed and (ii) image processing information about a result of the RDM-based image processing, wherein the RDM-based image processing is (i) performed on the basis of a value of a feature of one piece of video data among the plurality of pieces of video data or (ii) performed on the basis of one feature value among feature values related to a separately set feature aside from values of features of the plurality of pieces of video data.

A digital display interface (40) connects a first audio-visual device (10) to a second audio-visual device (20). Stereoscopic image data is transmitter over the display interface (40). Components of stereoscopic image data are multiplexed and inserted into an image data carrying element. An existing deep color mode can be re-used for this purpose. Signaling information to help identify or decode the stereoscopic image data is carried in auxiliary data carrying elements. Stereoscopic image data can be distributed between image data carrying data elements and auxiliary data carrying data elements. Auxiliary data carrying elements can be transmitted in horizontal or vertical blanking periods, and can comprise HDMI Data Island Packets. Stereoscopic image data can be sent over an auxiliary data channel. The auxiliary data channel can form part of the same cable as is used to carry a primary channel of the display interface, a separate cable, or a wireless link.

An effect of crosstalk and unnecessary congestion on a transmission path having a plurality of lanes is improved. A source device 210 includes switches 211-1, . . . , and 211-N for respectively connecting TMDS channels 231-1 , . . . , and 231-N to a corresponding signal pin of a transmission unit 211 or ground, and a sink device 220 includes switches 221-1, . . . , and 221-N for respectively connecting TMDS channel 231-1, . . . , and 231-N to a corresponding signal pin of a reception unit 221 or ground. Both the source device 210 and the sink device 220 ground a signal line of the TMDS channels 231-1, . . . , and 231-N which does not perform communication.

A sink device is bi-directionally communicably connected to the source device. The sink device includes a first memory, and a controller. Stored in the first memory is a plurality of pieces of audio format information including information representing an audio format that the sink device can process. The controller selects, from among the plurality of pieces of audio format information stored in the first memory, one piece of audio format information corresponding to receiver format information representing an audio format that a receiver device connected to the sink device can process. The controller then outputs the selected audio format information to the source device.