Touch panel input device

Details Touch panel input device Touch panel input device

2007-05-08

2007-05-08

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018010, C178S018030

Reexamination Certificate

active

10172580

ABSTRACT:
A piezoelectric substrate is fixed to the movable plate or the support substrate directly or through a drive electrode of the piezoelectric substrate. When a pressure on an input operation surface is detected, a drive voltage is impressed on the drive electrodes of the piezoelectric substrate. In response, the piezoelectric substrate vibrates the movable plate or the support substrate, thereby providing tactile feedback to an operator. Because the movable plate or the support substrate directly vibrates without an independent vibrating source, there is no energy loss or transmission delay caused by transmitting the vibration, and finely control of the contraction and expansion of the piezoelectric substrate allows fine control of the vibration. In one embodiment, the drive voltage is modulated with signals dependent on the location of the pressure. In another embodiment, the drive voltage is modulated with audio frequencies to create a speaker.

REFERENCES:
patent: 4786896 (1988-11-01), Harte
patent: 5504980 (1996-04-01), Yoshinaga et al.
patent: 6118435 (2000-09-01), Fujita et al.
patent: 6429846 (2002-08-01), Rosenberg et al.
patent: 6492979 (2002-12-01), Kent et al.
patent: 6504530 (2003-01-01), Wilson et al.
patent: 6522322 (2003-02-01), Maeda et al.
patent: 6608618 (2003-08-01), Shuler et al.
patent: 2003/0179190 (2003-09-01), Franzen

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3768532