Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1995-12-21
1998-02-10
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
Specific condition
340572, 355200, 355201, 355202, 388401, 388462, G08B 1324
Patent
active
057173818
ABSTRACT:
A copyright protection system is provided in which copyrighted articles, such as documents and photos, have associated with the article magnetic material which is detected when the article is copied on a scanner/reproducing machine. The magnetic material may be secured to the article so that it cannot be removed without destroying the article, or the magnetic material may form part of the article. The scanner/reproducing machine is provided with a magnetic detection system for automatically detecting the copyrighted article.
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Chamberlain, IV Frederick Rockwell
Freeman Jay Davis
Jagielinski Tomasz Marek
Jeffers Frederick John
Eastman Kodak Company
Hofsass Jeffery
Lee Benjamin C.
Noval William F.
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