Image gallery: Touch-screen tech comes of age

Taking the collaborative table-top computer a step further, Mitsubishi Electric Research Laboratories' DiamondTouch Table can identify different users who are touching it simultaneously. Multiple antennas embedded under the surface transmit small radio-frequency signals to the fingertips of users, completing a circuit through each user's chair, which is wired into a separate receiver channel.

MERL's DiamondTouch Table

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