A bidirectional media communication channel testing platform includes an HDMI testing device including a video input port and an audio output port; a plurality of media streaming devices, each including a video transmission channel and an audio return channel; and a bidirectional switch including a video path and an audio path. The video path is configured to selectively couple the video input port of the HDMI testing device to a video transmission channel of a selected one of the plurality of media streaming devices, and the audio path is configured to concurrently couple the audio output port of the HDMI testing device to the audio return channel of each of the plurality of media streaming devices, regardless of a switching state of the video path of the bidirectional switch.

A bidirectional media communication channel testing platform includes an HDMI testing device including a video input port and an audio output port; a plurality of media streaming devices, each including a video transmission channel and an audio return channel; and a bidirectional switch including a video path and an audio path. The video path is configured to selectively couple the video input port of the HDMI testing device to a video transmission channel of a selected one of the plurality of media streaming devices, and the audio path is configured to concurrently couple the audio output port of the HDMI testing device to the audio return channel of each of the plurality of media streaming devices, regardless of a switching state of the video path of the bidirectional switch.

Tactile vibration signals are transferred favorably in synchronization with audio signals. Transfer signals for respective blocks each including a plurality of frames are sequentially transmitted to a receiver side via a predetermined transfer line. The transfer signals include a predetermined number of channels of audio signals and a predetermined number of channels of tactile vibration signals. For example, the tactile vibration signals are generated on the basis of media signals associated with the audio signals. For example, configuration information of the predetermined number of channels of audio signals and the predetermined number of channels of tactile vibration signals is added to the transfer signals.

Tactile vibration signals are transferred favorably in synchronization with audio signals. Transfer signals for respective blocks each including a plurality of frames are sequentially transmitted to a receiver side via a predetermined transfer line. The transfer signals include a predetermined number of channels of audio signals and a predetermined number of channels of tactile vibration signals. For example, the tactile vibration signals are generated on the basis of media signals associated with the audio signals. For example, configuration information of the predetermined number of channels of audio signals and the predetermined number of channels of tactile vibration signals is added to the transfer signals.

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.

A method and apparatus for upgrading software in a front-end device connectable to a back-end device through a coaxial cable. The method includes receiving an instruction for a software upgrade, which is inserted into a horizontal blanking region of a video signal, from the back-end device through the coaxial cable, receiving, in sequence, data packets inserted into the horizontal blanking region, from the back-end device through the coaxial cable, the data packets including data for the software upgrade, and upgrading software in the front-end device based on the received data packets. Existing coaxial cables in a video surveillance system are used to transmit the data for the software upgrade, and during data transmission for the software upgrade the normal monitoring function of the video surveillance system is enabled.

The present application provides a video signal identification method and apparatus, an electronic device and a readable storage medium. The method includes: reading a first register to obtain a format value of a video signal received (S100); in a case that the format value is shared by target video signals with multiple formats, configuring a second register according to at least one of the multiple formats for the target video signals, and detecting whether the video signal received is in a locked state (S110); and in response to configuring the second register according to a first target format and detecting that the video signal received is in the locked state, determining that a format of the video signal received is the first target format (S120).

A transmission device includes an image processing unit that controls transmission of a first packet including region information regarding a region detected from an image and controls transmission of a second packet for each of lines in which at least the region has been detected in the image. The second packet comprises a header including information regarding the line, and a payload including region data concerning a partial region corresponding to the line, out of the region, in which the header includes: identification information of the data included in the payload; an error correction code of the information included in the header; and an extension region provided so as to be interposed between the identification information and the error correction code, and information indicating whether or not the region data is included in the payload corresponding to the header is set in at least a part of the extension region.

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.