Fingertip tactile-sense input device and personal digital...

Details Fingertip tactile-sense input device and personal digital... Fingertip tactile-sense input device and personal digital...

2007-10-09

2007-10-09

Awad, Amr A. (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C345S173000

Reexamination Certificate

active

10784761

ABSTRACT:
A fingertip tactile sense input device for a personal digital assistant capable of various input operations produced by a moving fingertip over projections recognized by the fingertip tactile sense. An input plate has a plurality of fingertip input projections and input control means that encodes an input signal when a projection is depressed. A fingertip can be moved over the input plate with the wrists fixed. The projections are disposed within a surface area outlined by an inverted generally egg-shaped curve C1or C2, which is usable equally by the index fingertip of either hand.

REFERENCES:
patent: 6665173 (2003-12-01), Brandenberg et al.
patent: 6909424 (2005-06-01), Liebenow et al.
patent: 6995752 (2006-02-01), Lu
patent: 2003/0044000 (2003-03-01), Kfoury et al.
patent: 10-333778 (1998-12-01), None
patent: 2000-165492 (2000-06-01), None
patent: 2000-278391 (2000-10-01), None

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