We have developed a wide converting system for Hi-Vision TVs which can fit input signals into a 16:9 wide aspect screen. In this system, the compression and arbitrary enlargement of images are done thoroughly by digital signal processing circuits. In addition, this system has an NTSC-HD converter, an enlargement-adaptive enhancer, a caption shifter and so called "smooth wide" circuits together with various displaying functions. This paper describes the features of the system and the development of it's LSI.
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