A cursor controller for use with a computer uses a single moving slider actuated by a handle for indicating X and Y movement by mounting a pair of planar screens each having parallel lines at right angles to each other. Two light sources and associated detectors are respectively arranged on either side...http://www.google.es/patents/US6107991?utm_source=gb-gplus-sharePatente US6107991 - Cursor controller for use with a computer having a grippable handle
Cursor controller for use with a computer having a grippable handle
