Technique to beam HD video with 99 percent less power could sharpen the eyes of smart homes

Everyone seems to be insisting on installing cameras all over their homes these days, which seems incongruous with the privacy crisis — but that’s a post for another time. Today, we’re talking about enabling those cameras to send high-definition video signals wirelessly without killing their little batteries. A new technique makes beaming video out more than 99 percent more efficient, possibly making batteries unnecessary altogether.

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