Writing pad

Abstract From the Canadian patent

Writing Pad, Abstract of the Disclosure A writing pad in which a grid of electrical elements defines an array of discrete locations on the writing surface with a density of at least 100 x 50 = 5000 locations per square inch, and digital circuitry is connected to the grid to determine the locations at which writing stimuli are being received. In other aspects circuitry is used to identify the upper and lower boundaries along one dimension of the writing surface of, a local region at which writing stimuli are being received; the writing surface is scanned to identify the coordinate value along one dimension of a point at which writing stimuli are being received, by scanning respectively …