Apple is exploring touch screen technology that determines pressure sensitivity using a combination of capacitive touch and infrared light sensing, according to a new patent application recently published by the United States Patent and Trademark Office (via AppleInsider). The patent describes a method of determining the force of a user's touch on a capacitive screen using infrared transmit lines from transmitters and receivers positioned under the frame of the cover glass. Capacitive touch combined with light would determine both the position of the finger and distinguish a soft touch from