The present disclosure relates to a system and method for synchronous video display on at least one display. The method may comprises receiving a channel of video signal from each data acquisition port of a plurality of data acquisition ports during a time interval, each channel of video signal comprising a plurality of video frames captured during the time interval. The method may also comprises assigning a count value for each video frame of the channel of video signal as synchronization information for each video frame of the channel of video signal to form a pool of video frames each corresponding to a count value. The method may further comprises selecting video frames with the same count value from the pool of video frames as synchronized video frames, and transmitting, through the plurality of output ports, the synchronized video frames for synchronous display on the at least one display.

A method and system for transmitting and receiving an audio signal over a video signal in a single cable. The method and system including receiving an analog video signal, the analog video signal comprising one or more rows of video data, an audio header, and one or more quantized audio data. The method includes detecting, the audio header in a blank interval of the analog video and determining a reference level of the audio header. The method and system include extracting, in response to detecting the audio header, the one or more quantized audio data and converting the one or more quantized audio data to an original value of audio data based on the reference level of the audio header. The method and system are configured for storing the one or more quantized audio data in the original value in a First-in-First-Out (FIFO) buffer, and reconstructing, utilizing the FIFO buffer, a continuous audio signal from the one or more quantized audio data in the original value.

A device system and method for providing audio summarization data from video is provided. A portable media streaming device: transmits, to one or more receiving terminals, first frames of video captured by a video camera; determines, after transmission of the first frames of the video, that a signal strength associated with the first network falls below a predetermined threshold; generates audio summarization data corresponding to one or more objects of interest identified in second frames of the video, the second frames captured by the video camera after the first frames; selects a portion of the audio summarization data based on a context associated with a receiving terminal of the one or more receiving terminals; and transmits, using the communication unit, via one or more of the first network and a second network, the portion of the audio summarization data to the receiving terminal.

A device system and method for providing audio summarization data from video is provided. A portable media streaming device: transmits, to one or more receiving terminals, first frames of video captured by a video camera; determines, after transmission of the first frames of the video, that a signal strength associated with the first network falls below a predetermined threshold; generates audio summarization data corresponding to one or more objects of interest identified in second frames of the video, the second frames captured by the video camera after the first frames; selects a portion of the audio summarization data based on a context associated with a receiving terminal of the one or more receiving terminals; and transmits, using the communication unit, via one or more of the first network and a second network, the portion of the audio summarization data to the receiving terminal.

The present disclosure relates to a device for transmitting video signals, including: two or more signal channels respectively connected to the signal sources; two or more trigger switch units respectively disposed corresponding to the signal channels; a switch control unit configured to determine a target signal channel according to a channel selection signal, and turn on the trigger switch unit corresponding to the target signal channel and turn off the other trigger switch units; and a signal source control unit disposed at each of the signal sources, and configured to control the operation and standby of the signal source according to the turning on and turning off of the trigger switch unit of the signal channel connected to the signal source.

An image receiving terminal includes a communicator and one or more processors. An elapsed time is a time period from a time point at which a vertical synchronization signal is generated to a time point at which a specific packet is received by the communicator. The processor sets a determination reference time on the basis of the plurality of measured elapsed times. The processor determines whether the communication channel which is used by the communicator is to be switched to another communication channel on the basis of the set determination reference time and the elapsed time measured after the determination reference time has been set. The processor controls switching of the communication channel which is used by the communicator on the basis of the result of determination of the communication channel.

A display device includes a display unit, a Bluetooth module configured to perform Bluetooth communication with a remote control device or a mobile terminal, an IR module configured to receive an IR signal from the remote control device, and a controller configured to control the display unit, the Bluetooth module and the IR module. The controller may transmit, to the remote control device, a Bluetooth connection stop request signal for breaking Bluetooth connection with the remote control device, if the display device enters a speaker mode for outputting audio played by the mobile terminal.

A display device includes a display unit, a Bluetooth module configured to perform Bluetooth communication with a remote control device or a mobile terminal, an IR module configured to receive an IR signal from the remote control device, and a controller configured to control the display unit, the Bluetooth module and the IR module. The controller may transmit, to the remote control device, a Bluetooth connection stop request signal for breaking Bluetooth connection with the remote control device, if the display device enters a speaker mode for outputting audio played by the mobile terminal.

Connection with an apparatus with a lower standard is easily performed. A digital signal to which coding has been performed is transmitted to an external device by a differential signal through a plurality of channels via a transmission path. In this case, a digital signal to which first coding has been performed and from which clock extraction is not available is transmitted through a part of the plurality of channels, and a digital signal to which second coding has been performed and from which clock extraction is available is transmitted through the other channels of the plurality of channels. A reception side processes the digital signal received through the plurality of channels on the basis of the clock extracted from the digital signal received through any one of other channels.

Connection with an apparatus with a lower standard is easily performed. A digital signal to which coding has been performed is transmitted to an external device by a differential signal through a plurality of channels via a transmission path. In this case, a digital signal to which first coding has been performed and from which clock extraction is not available is transmitted through a part of the plurality of channels, and a digital signal to which second coding has been performed and from which clock extraction is available is transmitted through the other channels of the plurality of channels. A reception side processes the digital signal received through the plurality of channels on the basis of the clock extracted from the digital signal received through any one of other channels.