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In reference to the patent: US20140206209

Appears to be the same as US7458825 B2 granted to Walletex Microelectronics in 2008.

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I briefly looked at both documents and, while the are trying to accomplish the same goal, it looks like they are doing it in different ways. At least that's what I get from reading the first claims.

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Patents can be sold, owners can change. I didn't look up if thats what happened here, but you can do that in the history of the patent (for example at espacenet).

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