Control system with a tactile input field
First Claim
Patent Images
1. A control system wherein control commands are generated by entering symbols on a touch-sensitive input field, comprising context selecting means for selecting one out of a plurality of different control contexts and associating a limited set of valid symbols with a selected control context;
- and a symbol interpreter capable of recognising a symbol entered on the surface of the input field by tracing a rough line with a fingertip, by comparing the line with the set of valid symbols associated with the selected control context.
1 Assignment
0 Petitions
Accused Products
Abstract
The control system has a touch-sensitive input field (touchpad). Symbols are entered on the surface of the touchpad by tracing rough lines. The lines are interpreted in relation to a particular control context. In each particular control context, only a limited set of a few symbols are valid, thereby permitting symbols to be reliably recognised even when they are traced with a fingertip.
-
Citations
8 Claims
-
1. A control system wherein control commands are generated by entering symbols on a touch-sensitive input field, comprising
context selecting means for selecting one out of a plurality of different control contexts and associating a limited set of valid symbols with a selected control context; - and
a symbol interpreter capable of recognising a symbol entered on the surface of the input field by tracing a rough line with a fingertip, by comparing the line with the set of valid symbols associated with the selected control context. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- and
Specification