| 摘要 |
A video advertisement device using a multi-screen technique is provided to process two screen images at a low cost by processing signals of a main screen and a sub-screen by using a single signal processing board. A main process system includes an input image dividing system, an output image dividing system, and a maintenance system. The input image dividing system divides input images of a main screen and a sub-screen and processes the two input images by a single signal processing board. The output image dividing system divides output images of the main screen and the sub-screen and processes the two output images by using the single signal processing board. The maintenance system processes upgrading of software such as firmware of the signal processing board based on an RS232C. The input image dividing system includes a main screen input system for performing a function of receiving a TV image or a DVD image to be transmitted to a main screen and a sub-screen input system for performing a function of receiving an STB(Set Top Box) or a PC to be transmitted to a sub-screen. |
