发明名称 |
Copyright protection for photos and documents using magnetic elements |
摘要 |
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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申请公布号 |
US5717381(A) |
申请公布日期 |
1998.02.10 |
申请号 |
US19950576192 |
申请日期 |
1995.12.21 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
JAGIELINSKI, TOMASZ MAREK;JEFFERS, FREDERICK JOHN;FREEMAN, JAY DAVIS;CHAMBERLAIN, IV, FREDERICK ROCKWELL |
分类号 |
G08B13/24;(IPC1-7):G08B13/24 |
主分类号 |
G08B13/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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