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'Silent Communication' Lets You Talk Without Speaking

One day, Professor Tanja Shultz of the Karlsruhe Institute of Technology grew annoyed at a fellow train passenger who was loudly squawking into their cell phone. "I thought 'I need to change this'," she recently told the BBC, after unveiling -- at the Cebit Electronics Fair in Germany -- a device that can essentially read lips. Called "silent communication," Shultz's system would allow cell phone ...