Rolling/sliding type pointing device

Abstract

In one of the illustrative embodiments of the invention disclosed, a hollow roller (21) is rotatably and axially slidably carried on a rail (22) connected with a casing. In the other of the embodiments, a roller (31) is rotatably and axially slidably received in a recessed fitting (32). In either case, the pointing device of this invention is provided with noncontact means (23, 27; 33) such as photoelectric means for detecting the direction in, and the distance by, which the roller is axially moved and for detecting the direction in which the roller is rotated and the number of revolutions thereof.

Claims aren’t available for this document.