Patent ID: 8427451

Claim:
A method executed by a multi-touch input device including multiple conductors on a first axis and multiple conductors on a second axis different from the first axis, for detecting actual touch points that are simultaneously indicated, the method comprising: determining a first conductor on the first axis at which one of multiple simultaneous touches is indicated; determining a first conductor and a second conductor on the second axis at which one of the multiple simultaneous touches is indicated; multiplexing the first conductor on the first axis and the first conductor on the second axis to perform a first combined measurement by coupling both the first conductor on the first axis and the first conductor on the second axis to a signal measuring device at the same time; multiplexing the first conductor on the first axis and the second conductor on the second axis to perform a second combined measurement by coupling both the first conductor on the first axis and the second conductor on the second axis to the signal measuring device at the same time; and comparing the first combined measurement and the second combined measurement to determine a first actual touch point and a second actual touch point that are simultaneously indicated as opposed to a ghost point.