(CBS News) Verizon has filed a patent for targeting ads that collect information from infrared cameras and microphones that can detect the amount of people and types of conversations happening in customers’ living rooms.

The set-top box technology is not the first of its kind – Comcast patented similar monitoring technology in 2008 that recommended content to users based on people it recognized in the room. Google TV also proposed a patent that would use video and audio recorders to figure out exactly how many people in a room were watching its broadcast.

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