Pressure sensing apparatus for digitizer pen tip

Details Pressure sensing apparatus for digitizer pen tip Pressure sensing apparatus for digitizer pen tip

1993-01-28

1994-10-18

Chin, Stephen

Telegraphy

Systems

Position coordinate determination for writing

345179, 382 3, G08C 2100

Patent

active

053570626

ABSTRACT:
In a pen cursor for use in performing writing motions on the surface of a tablet, this is a sensor for mounting in a tip portion of the pen cursor to develop a signal output indicating longitudinal force on a writing tip of the pen cursor. A tip member extends from the tip portion of the pen cursor and is mounted for longitudinal movement. It has a plunger portion extending therefrom within the pen cursor. A resistive member and a conductive member are disposed within the pen cursor behind the plunger portion. The plunger portion forces the resistive member and the conductive member together in electrical contact over a contacting area which is directly proportional to the amount of longitudinal pressure on the plunger portion. A voltage is connected across the contacting area whereby resistance as a function of longitudinal pressure on the plunger portion can be measured.

REFERENCES:
patent: 4263592 (1981-04-01), Takahashi et al.
patent: 4268730 (1981-05-01), Higgins et al.
patent: 4318096 (1982-03-01), Thornburg et al.
patent: 4580007 (1986-04-01), Searby et al.
patent: 4667182 (1987-05-01), Murphy
patent: 4786764 (1988-11-01), Padula et al.

Affiliated with

Also associated with

Rating

Pressure sensing apparatus for digitizer pen tip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pressure sensing apparatus for digitizer pen tip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pressure sensing apparatus for digitizer pen tip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2374082