Abstract: The present invention provides an asymmetric duplex transmission device and a switching system employing the same. The master device and the slave device communicate with each other through a single clock and full duplex data channels. It can also switch the duplex data channels between a plurality of slave devices under limited resources.

Abstract: A video control device for a video wall is provided. The video wall includes first and second display devices disposed adjoining each other in the vertical direction. The video control device includes a video receiver for receiving a video signal having multiple frames, and a video delay controller electrically coupled to the video receiver, for receiving and storing data of the multiple frames. The data of each frame includes data of a first sub-frame and a second sub- frame. In one embodiment, a control method controls output of the video data to the video wall, wherein the video delay controller reads stored data of one of the multiple frames, and respectively outputs the first and second sub-frames of that frame to the first and second display devices at first and second time points, respectively, wherein the first and second time points are separate by a defined time interval.

Abstract: The present invention provides an asymmetric duplex transmission device and a switching system employing the same. The master device and the slave device communicate with each other through a single clock and full duplex data channels. It can also switch the duplex data channels between a plurality of slave devices under limited resources.

Abstract: A method of resizing an image having a plurality of data unit blocks is disclosed. Each data unit block is a pixel matrix. The method includes the steps of generating column pseudo-pixel matrix corresponding to a data unit block, decimating/interpolating the data unit block in column direction to generate a scaled column-pixel matrix, filtering the scaled column-pixel matrix and the column pseudo-pixel matrix to generate a filtered column-pixel matrix, storing the filtered column-pixel matrix in a first buffer, generating a row pseudo-pixel matrix corresponding to the filtered column-pixel matrix stored in the first buffer, decimating/interpolating each the filtered column-pixel matrix to generate a scaled row-pixel matrix, and filtering the scaled row-pixel matrix and the row pseudo-pixel matrix to generate a resized row-pixel matrix.

Abstract: A method of resizing an image having a plurality of data unit blocks is disclosed. Each data unit block is a pixel matrix. The method includes the steps of generating column pseudo-pixel matrix corresponding to a data unit block, decimating/interpolating the data unit block in column direction to generate a scaled column-pixel matrix, filtering the scaled column-pixel matrix and the column pseudo-pixel matrix to generate a filtered column-pixel matrix, storing the filtered column-pixel matrix in a first buffer, generating a row pseudo-pixel matrix corresponding to the filtered column-pixel matrix stored in the first buffer, decimating/interpolating each the filtered column-pixel matrix to generate a scaled row-pixel matrix, and filtering the scaled row-pixel matrix and the row pseudo-pixel matrix to generate a resized row-pixel matrix.