Input apparatus for a data processing system

Details Input apparatus for a data processing system Input apparatus for a data processing system

1996-10-23

1998-11-03

Horabik, Michael

Coded data generation or conversion

Bodily actuated code generator

341 32, 345163, 345164, 345167, G09G 508

Patent

active

058315535

ABSTRACT:
Input apparatus for a data processing system. An input apparatus, for example a mouse or a track ball, comprises a member which is rotatable by manipulation by a user. The rotation causes a change of a magnetic field, which change is detected by a detector. The member in the apparatus in accordance with the invention comprises a non-homogeneous distribution of a soft-magnetic material which, upon rotation, changes a magnetic field externally applied to the member by a magnet.

REFERENCES:
patent: 5055781 (1991-10-01), Sakakibara
patent: 5130650 (1992-07-01), Lemarquand
patent: 5157329 (1992-10-01), Brauer
patent: 5302893 (1994-04-01), Yoshimura
patent: 5600238 (1997-02-01), Holloway
patent: 5637995 (1997-06-01), Izawa

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