Apparatus for digitizing positions on a transparency

Details Apparatus for digitizing positions on a transparency Apparatus for digitizing positions on a transparency

1988-12-15

1990-11-27

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

367907, 362 33, G08C 2100

Patent

active

049738003

ABSTRACT:
An apparatus is disclosed for digitizing positions on a transparency. The apparatus includes a cool light box and an acoustic digitizer.

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