Abstract: A device for controlling and integrating multiple types of signal transmission cables includes a multi-signal transmitter module and a multi-signal receiver module. The multi-signal receiver module is connected to the multi-signal transmitter module via a network cable for receiving a first and a second differential signal sequentially transmitted by the multi-signal transmitter module. The multi-signal receiver module also performs a differential solution process for the received first and second differential signals, so as to get a first control instruction and a video signal, which are then sequentially transmitted to at least one electronic device for the same to execute a corresponding operation. With these arrangements, multiple signals can be transmitted and received with reduced quantity of cables, and the controlling and integrating device can be installed and maintained with reduced labor cost.

Abstract: A power-saving audio/video control device determines whether to power on/off a public broadcasting system according to a connecting status of a multimedia device through a power-saving control. The multimedia device provides an audio/video signal to be played by the public broadcasting system. The multimedia device includes an input module, a detection unit and a control unit. The audio/video control device plugs and installs the multimedia device directly, and the detection unit detects whether the input module is connected to the multimedia device, so that the control unit controls the power ON/OFF of the public broadcasting system and selects a source port automatically to achieve the effects of providing a plug and play function, turning on or off the power automatically, saving energy, reducing the labor cost, enhancing the service life, automatically switching the audio/video, and providing a convenient operation.