Sony Japan files patent for device to play PlayStation 2 games on PS3

While the PlayStation 3 initially launched with backwards-compatibility for its hugely successful PlayStation 2 video games, of which many people owned a significant amount, it was not long before the company began to phase the feature out of the consoles as a means of cutting costs. As this happened, they continued to sell the original PlayStation 2 console separately, while the PlayStation 3 would retain its ability to play PlayStation 1 games.
But now, according to some documents dug

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