Patent ID: 9310927
Filing Date: 2016-04-12
CPC Classification: G06F

Claim Text:
1. A method comprising: determining a first plurality of contact locations in view of a first scan of a touch-sensing surface; determining a second plurality of contact locations in view of a second scan of the touch-sensing surface; identifying a number of total contact locations corresponding to touch contacts that have moved between the first scan and the second scan, including: comparing the identified number of total contact locations with a threshold number; in accordance with a determination that the number of total contact locations is greater than the threshold number, performing a first correlation process to correlate the first plurality of contact locations with the second plurality of contact locations; and in accordance with a determination that the number of total contact locations is equal to or less than the threshold number, performing a second correlation process to correlate the first plurality of contact locations with the second plurality of contact locations.