Abstract: A LED lighting system and a controlling method using the same is disclosed. In accordance with the present invention, a central controller extracts an ID information assigned to each of one or more LED lighting devices using a power line communication and classifies the extracted ID information into ID groups according to a user command by assigning a management information thereto to enable controlling of the one or more LED lighting devices based on the management information.

Abstract: A LED lighting system and a controlling method using the same is disclosed. In accordance with the present invention, a central controller extracts an ID information assigned to each of one or more LED lighting devices using a power line communication and classifies the extracted ID information into ID groups according to a user command by assigning a management information thereto to enable controlling of the one or more LED lighting devices based on the management information.

Abstract: Provided are a video signal processing apparatus and a video signal processing method capable of automatically recognizing whether an input video signal is an analog video signal or a digital video signal and processing the input video signal accordingly. According to the video signal processing apparatus and method, the input signal can be processed appropriately so that a display device can display a video or a video storage device can store a video data even when it is not known whether the input signal is an analog signal or a digital signal.

Abstract: A high definition digital CCTV system is disclosed. In accordance with the present invention, a video signal combiner is connected to one or more video generating means and a video storage means in series or in parallel through a single cable to simplify a connection therebetween.