公开(公告)号：GB2286034A

公开(公告)日：1995-08-02

申请号：GB9401765

申请日：1994-01-31

Applicant: IBM

Inventor： GIBBS TERENCE KEITH ,  LUCK GRAHAM ,  ROBERTSON PETER J

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/039 ,  G05G9/053 ,  G06K11/18

Abstract: A variable magnetic field between the mouse 300 and a ferrous surface 310 provides a down force that stabilises the position of the mouse. The mouse 300 may contain an electromagnetic coil 306 and the strength of the down force may be continuously controlled by an operator, via a trigger control 104 which varies the current through the coil 306. In an alternative embodiment, the magnetic field is provided by a permanent magnet. The magnetic field may, alternatively, be provided by the work surface and the mouse may include a ferrous plane. The mouse 300 to be used for display cursor control in environments where high levels of vibration and rapid motional changes make a conventional mouse unusable.