Ovonic Imaging Systems, Inc.

Ronald G Mulberger

Stephen J Hudgens

Prem Nath

Vincent D Cannella

Zvi Yaniv

Clive E Catchpole

Roger W Pryor

John C McGill

Mike Prewarski

A solid state, touch sensitive position sensor, which sensor includes a conductive surface along the boundaries of which are disposed at least two sets of two elongated current distribution and collection means. The touch sensitive position sensor further includes resistance means operatively disposed so as to interconnect said current distribution and collection means with said conductive surface. The current distribution and collection means and resistance means are configured, so as to (1) provide a substantially linear electric field distribution of equipotential lines and (2) sequentially turn one set of said current distribution and collection means on while turning the other sets off. In an important embodiment, the conductive surface is formed immediately atop a copyboard and by utilizing erasable, felt tip markers having metallic inserts therein, visual images as well as electrical signals, indicative of X-Y coordinate location, may be simultaneously generated.

Solid state image detector and signal generator

Apparatus for producing electronic signals which are representative of a detectable condition on an image-bearing surface. The apparatus includes an elongated array of distinct thin film photosensitive elements formed on a common flexible large area substrate. The elongated array of photosensitive elements are fabricated as a large area, photovoltaic structure formed of a plurality of thin film layers, including a first layer of thin film conductive material. The discrete photosensitive elements are defined by patterning of the conductive layer into shaped regions which determine the overall configuration and dimensions of each element.

Large area array of thin film photosensitive elements for image detection

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Sterling Heights, MI, United States of America

Ronald G Mulberger