The 10 best gadgets and tech at CES 2012

At one end of the scale, CES is about big, high-end product announcements - the world’s biggest TV, the smallest pico projector, hi-fi speakers that cost more than your car.

At the other end it’s about companies you’ve never (or barely) heard of trying to catch the tired eye of a wandering blogger with head-mounted displays, portable scanners and USB penknives.

Filter out the noise with these picks of the best gadgets and tech of CES 2012.