Key input device

Details Key input device Key input device

2006-11-21

2006-11-21

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

C345S157000, C345S160000, C345S169000, C455S550100, C455S566000, C200S00600C

Reexamination Certificate

active

07138978

ABSTRACT:
A key input device in which an input key is oscillated with respect to an opposing surface facing a bottom portion thereof and in which depression of the opposing surface with the input key at a normal operating point situated above a contact portion of a board causes the input key to tilt in a normal oscillating direction to effect input at the contact portion. Either the bottom portion of the input key or the opposing surface is equipped with guide protrusions arranged symmetrically with respect to an imaginary line extending along the normal oscillating direction of the input key. Depression of the opposing surface with the input key at an erroneous operating point deviated from the normal operating point results in the guide protrusions guiding the input key to tilt in the normal oscillating direction while abutting either the bottom portion of the input key or the opposing surface.

REFERENCES:
patent: 4947461 (1990-08-01), Yoshioka et al.
patent: 5621196 (1997-04-01), Nishijima et al.
patent: 5912612 (1999-06-01), DeVolpi
patent: 6080941 (2000-06-01), Yokobori
patent: 6246019 (2001-06-01), Nakamura et al.
patent: 2001/0025777 (2001-10-01), Kashino
patent: 2000-243188 (2000-08-01), None

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3673843