Patent Document ID: 4736191
Application ID: 06762049
Patent Flag: 1

Claim One:
1. Apparatus for use in providing touch commands from a user, comprising: (a) a touch pad having a plurality of plates defining sectors arrayed about a central origin, each sector plate formed of an electrically conductive material and electrically isolated from the other sector plates, the plates being covered by a dielectric layer which is exposed to the touch of a user; (b) means electrically connected to each of the sector plates for detecting the relative area of each plate covered by an object which can capacitively couple thereto such as a user's finger based on a change in capacitance of each sector plate which will be in proportion to the area of the sector plate that is covered by the object, for calculating the relative X and Y positions of the object with respect to the rigin of the touch pad based on the relative areas of each late covered by the object, and for providing an output signal indicative thereof.