US 7,349,822 B2
Slide pad system and method
Todd S. Sachs, Palo Alto, Calif. (US); Jonah Harley, Mountain View, Calif. (US); and Dale Schroeder, Scotts Valley, Calif. (US)
Assigned to Avago Technologies ECBU IP Pte Ltd., Singapore (Singapore)
Filed on Dec. 23, 2004, as Appl. No. 11/21,290.
Prior Publication US 2006/0142970 A1, Jun. 29, 2006
Int. Cl. G06F 15/00 (2006.01); G09G 5/00 (2006.01)
U.S. Cl. 702—150 24 Claims
OG exemplary drawing
 
1. A method performed by a slide pad system, the method comprising:
generating a first direction measurement using a first capacitance measurement;
generating a calibration measurement using a second capacitance measurement;
computing a first position using the first direction measurement and the calibration measurement;
generating a second direction measurement using a third capacitance measurement;
computing a second position using the second direction measurement and the calibration measurement; and
providing the first position and the second position to a host.