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also the combination of several 3G signals specifically 4- to create a combined transport system of 4*3G to provide a 12G signal. Doesn't this remind us of the age-old component analogue video? It seems that we are facing a reverse step, rather than a forwardlooking one... By combining all the possibilities, and considering both HD and UHD, we have an universe of possibilities (image 1, previous page). But let's dig a little deeper into the Quad-Link method of transport in 4K. If I want to transport a signal that is four times larger than another, the logical thing is to divide it into four parts, quadrants in this case, and transport one of these quadrants for each of the links. Indeed. This is called Square Division and is one of UHD's modes of transportation through four 1080p50/59.94 signals. Combined, these signals produce the desired final UHD image (Image 2). What happens, however, if we lose one of these links? The result does not seem optimal (Image 3). TMBi - 36
Image 2
Image 3
This case is more likely than we imagine. Therefore, there is another method of transporting a 12G signal over 4 3G signals, the 2Sample Interleave (Image 4). Don’t be alarmed:
although the direct translation is "intertwined", we are not going to recover this extinct technology. The aim is to protect the signal against loss of one