Stylus input device utilizing a permanent magnet

Details Stylus input device utilizing a permanent magnet Stylus input device utilizing a permanent magnet

2007-10-16

2007-10-16

Chang, Kent (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018010, C178S019010

Reexamination Certificate

active

10881804

ABSTRACT:
A stylus that operates utilizing magnetic fields, wherein a permanent magnet is disposed within a passive stylus that is detectable by a plurality of magnetic sensors that remove the magnetic field of the stylus from the earth's relative magnetic field to thereby obtain vectors that are used in a triangulation equation to determine the location of the stylus in two or three dimensions, depending upon the number of magnetic sensors that are used, wherein one set of magnetic sensors can be used as a reference for earth's magnetic field, and wherein each of the magnetic sensors includes a polarizing coil to change direction of sensitivity, a null coil and a flipping coil.

REFERENCES:
patent: 4670751 (1987-06-01), Enokido et al.
patent: 4688933 (1987-08-01), Lapeyre
patent: 4695680 (1987-09-01), Kable
patent: 4711977 (1987-12-01), Miyamori et al.
patent: 4806707 (1989-02-01), Landmeier
patent: 5023408 (1991-06-01), Murakami et al.
patent: RE33936 (1992-05-01), Miyamori et al.
patent: 5134388 (1992-07-01), Murakami et al.
patent: 5159321 (1992-10-01), Masaki et al.
patent: 5290972 (1994-03-01), Someya et al.
patent: 5291213 (1994-03-01), Krauss
patent: 5525764 (1996-06-01), Junkins et al.
patent: 5534893 (1996-07-01), Hansen, Jr. et al.
patent: RE35329 (1996-09-01), Murakami et al.
patent: 5654529 (1997-08-01), Yeung et al.
patent: 5717168 (1998-02-01), DeBuisser et al.
patent: 5793360 (1998-08-01), Fleck et al.
patent: 5834709 (1998-11-01), Blonder et al.
patent: 5914708 (1999-06-01), LaGrange et al.
patent: 5945981 (1999-08-01), Paull et al.
patent: 5973677 (1999-10-01), Gibbons
patent: 5995084 (1999-11-01), Chan et al.
patent: 6002799 (1999-12-01), Sklarew
patent: 6046733 (2000-04-01), Challener et al.
patent: 6118437 (2000-09-01), Fleck et al.
patent: 6128007 (2000-10-01), Seybold
patent: 6154200 (2000-11-01), Challener et al.
patent: 6204457 (2001-03-01), Shekhel et al.
patent: 6295372 (2001-09-01), Hawkins et al.
patent: 6326945 (2001-12-01), Williams, III
patent: 6337698 (2002-01-01), Keely, Jr. et al.
patent: 6466200 (2002-10-01), Anton et al.

Affiliated with

Also associated with

Rating

Stylus input device utilizing a permanent magnet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stylus input device utilizing a permanent magnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stylus input device utilizing a permanent magnet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3884270