VERFAHREN UND EINRICHTUNG ZUM ERZEUGEN VON ELEKTRISCHEN SIGNALEN, DIE DIE POSITION EINES KOERPERS BEZUEGLICH EINER BEZUGSFLAECHE KENNZEICHNEN, INSBESONDERE ZUR BILDPUNKT- ODER CURSORSTEUERUNG AUF EINEM BILDSCHIRM

摘要

The process and the apparatus are especially suitable for pixel or cursor control on a screen. Such electrical signals have previously been generated by means of so-called digitisation tablets which are complex and require a cable connection between the writing-pen-like body and the computer. By comparison, the electrical signals are generated wirelessly by means of an electromagnetic alternating field in accordance with the invention, which field is emitted at the location of the body SE and is received by at least two position-receiving coils E1, E2 fixedly arranged spaced apart next to the reference area. The position of the body SE is calculated from the voltages induced in the receiving coils, E1, E2.