theodp (442580) writes "As Google Glass goes on sale [ed: or rather, went on sale] to the general public, GeekWire reports that Bill Gates has already snagged one patent for 'detecting and responding to an intruding camera' and has another in the works. The invention proposes to equip computer and device displays with technology for detecting and responding to any cameras in the vicinity by editing or blurring the content on the screen, or alerting the user to the presence of the camera. Gates and Nathan Myhrvold are among the 16 co-inventors of the so-called Unauthorized Viewer Detection System and Method, which the patent application notes is useful 'while a user is taking public transportation, where intruding cameras are likely to be present.' So, is Bill's patent muse none other than NYC subway rider Sergey Brin?" A more cynical interpretation: closing the analog hole. Vaguely related, mpicpp pointed out that Google filed a patent for cameras embedded in contact lenses.