Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Reexamination Certificate
2011-08-16
2011-08-16
Shankar, Vijay (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
C345S172000
Reexamination Certificate
active
07999791
ABSTRACT:
An improved handheld electronic device, keypad, and method in accordance with the invention meet these and other needs. An improved handheld electronic device having an improved keypad provides enhanced usability and reduced size by organizing its keys in pairs, with a pair of keys being disposed on a support. Each key of a pair of keys is individually actuatable. An actuation of a key causes a primary conductor associated with the key set to electrically to connect a pair of contacts and to cause a secondary conductor associated with the key to electrically connect another pair of contacts. The primary conductor is a dome that is collapsible to electrically connect the pair of contacts and to provide a particular tactile feedback to the user. The secondary conductor is a conductor other than a collapsible dome. An actuation of any key or of any pair of keys thus provides to the user a consistent tactile feedback from a collapse of a single dome. An improved method in accordance with the invention is also disclosed.
REFERENCES:
patent: 4654488 (1987-03-01), Westfall
patent: 5693920 (1997-12-01), Maeda
patent: 5900829 (1999-05-01), Gardner et al.
patent: 6204848 (2001-03-01), Nowlan et al.
patent: 6377685 (2002-04-01), Krishnan et al.
patent: 7312410 (2007-12-01), Griffin et al.
patent: 7324091 (2008-01-01), Fyke
patent: 7388576 (2008-06-01), Griffin et al.
patent: 7532198 (2009-05-01), Lazaridis et al.
patent: 2001/0035333 (2001-11-01), Takahashi
patent: 2003/0012368 (2003-01-01), Smallwood
patent: 32 07 689 (1987-09-01), None
patent: 2 391 110 (2004-01-01), None
patent: 99/44212 (1999-09-01), None
Fyke Steven Henry
Griffin Jason T.
Borden Ladner Gervais LLP
Chakrapani Mukundan
Research In Motion Limited
Shankar Vijay
LandOfFree
Handheld electronic device and keypad providing enhanced... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Handheld electronic device and keypad providing enhanced..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Handheld electronic device and keypad providing enhanced... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2789545