Shielding techique for digitizers

Details Shielding techique for digitizers Shielding techique for digitizers

1988-06-20

1989-08-01

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

G08C 2100

Patent

active

048534978

ABSTRACT:
A shield for use in eliminating edge effects from an electromagnetic digitizer having an active area of a grid of wires surrounded by a peripheral area of connecting wires containing sensitive interconnecting circuitry. The shield is a pan-shaped shield of a non-ferrous metal sized and shaped to fit over the underside of the grid of wires and surrounding area of connecting wires. The shield comprises a center section disposed over the active area of the grid wires and spaced from the active area so as to provide no interference with the operation thereof and an outer peripheral shielding lip that is disposed in close-spaced, non-contacting relationship to the areas of sensitive interconnecting circuitry contained within the connecting wires. The preferred shield is formed of a single blank of aluminum sheet having peripheral edge portions thereof bent into non-connected, abutting relationship at corners thereof to form the outer peripheral shielding lip.

REFERENCES:
patent: 4645869 (1987-02-01), Rockwell et al.

Affiliated with

Also associated with

Rating

Shielding techique for digitizers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shielding techique for digitizers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shielding techique for digitizers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-132670