A Facial-Recognition-Based Playlist?

Some day, your cellphone might be able to read you as well as your best friend or significant other, though not if you have a poker face.

Sony Ericsson filed a patent application with the U.S. Patent and Trade Office earlier this month for technology that would allow a device to create MP3 playlists based on a user’s facial expressions.

It may not work out for the strong silent types, but the premise of the technology is that a cellphone would take a photo of the user’s face, analyze his facial characteristics and tailor a playlist to suit his mood.

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