Electrical touch sensor and human interface device using the...

Details Electrical touch sensor and human interface device using the... Electrical touch sensor and human interface device using the...

2005-06-03

2009-10-20

Tran, Henry N (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C178S018030, C178S018060, C178S019030, C178S020010, C178S020040, C324S076390, C324S076410, C324S076610, C324S418000, C341S020000, C341S022000, C341S033000, C361S288000, C361S290000, C382S124000

Reexamination Certificate

active

07605805

ABSTRACT:
An electrical touch sensor is provided. The electrical touch sensor includes: a touch detection part having at least one touch pad and generating a first signal having a same delay time regardless of whether the object is in contact with the touch pad and a second signal having a varied delay time according to whether the object is in contact with the touch pad; and a contact signal generator generating a contact signal in response to the delay time-difference between the first and second signals.Therefore, it is possible to increase operation reliability by precisely determining whether the object is in contact with the pad, when the object has charge accumulation characteristics more than a certain level, although its conductive is insufficient. In addition, the electrical touch sensor can determine whether the object is in contact with the pad using only one pad to reduce a layout area of a product.

REFERENCES:
patent: 4550310 (1985-10-01), Yamaguchi et al.
patent: 5016008 (1991-05-01), Gruaz et al.
patent: 5543588 (1996-08-01), Bisset et al.
patent: 5734787 (1998-03-01), Yonemitsu et al.
patent: 7006078 (2006-02-01), Kim
patent: 7109987 (2006-09-01), Goel et al.

Affiliated with

Also associated with

Rating

Electrical touch sensor and human interface device using the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrical touch sensor and human interface device using the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical touch sensor and human interface device using the... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4079676