Method for using touch signals and a touch unit

Details Method for using touch signals and a touch unit Method for using touch signals and a touch unit

2006-08-29

2009-12-15

Natalini, Jeff (Department: 2831)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S663000, C345S173000

Reexamination Certificate

active

07633300

ABSTRACT:
A method for evaluating touch signals on a touch unit which has two resistance foils (1, 2). The current (IX, IY) resulting from applying a given measurement voltage (UX, UY) to at least one of the resistance foils (1, 2) is measured and stored as a desired current value (IXS, IYS). Especially after the presence of at least one touch has been confirmed, the actual current (IX<IY) flowing in the other resistance foil (1, 2) is measured when the test voltage is again applied to at least one of the resistance foils (1, 2), and it is compared with the previously established desired current value (IXS, IYS) for this resistance foil (1, 2). In the event that the actual current (IX, IY) measured in the at least one resistance foil (1, 2) exceeds the desired current value (IXS, IYS), it is judged that a double touch occurred (FIG.8).

REFERENCES:
patent: 2002/0196036 (2002-12-01), Toyoshima et al.
patent: 2003/0063073 (2003-04-01), Geaghan et al.

Affiliated with

Also associated with

Rating

Method for using touch signals and a touch unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for using touch signals and a touch unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for using touch signals and a touch unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4147473