Tablet for use in a coordinate digitizer

Details Tablet for use in a coordinate digitizer Tablet for use in a coordinate digitizer

1975-03-10

1976-08-10

Robinson, Thomas A.

Telegraphy

Systems

Position coordinate determination for writing

235 6111H, 340365C, G08C 2100, G06K 708, G08B 536

Patent

active

039743322

ABSTRACT:
A capacitively coupled tablet for use with an electrically conductive pen comprises segments each including at least one lattice point of a matrix which comprises groups of spaced conductors which are disposed along coordinate axes. The segments are mutually electrically isolated by an electrically conductive shield layer having apertures which correspond to the surface area of the respective segments, and are marked with corresponding characters to serve as keys. An electrically insulating layer is disposed between the shield layer and the groups of conductors, and a similar surface layer is disposed on the shield layer.

REFERENCES:
patent: 3585368 (1971-06-01), Nunamaker
patent: 3757322 (1973-09-01), Barkan et al.

Affiliated with

Also associated with

Rating

Tablet for use in a coordinate digitizer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tablet for use in a coordinate digitizer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tablet for use in a coordinate digitizer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1743709