Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takumi Yoshida1
Yoshiaki Shibata1
Katsumi Tahara1
Date of Patent
May 31, 2011
Patent Application Number
10475870
Date Filed
February 26, 2003
Patent Primary Examiner
Patent abstract
A UMID extracting/embedding unit 10 extracts UMID data embedded in material data. A CPU 11 updates a generation indicated by generation data in the extracted UMID data to generate new generation data when processing accompanied by a deterioration of quality is applied to the material data such as recording to a database 8. The UMID extracting/embedding unit 10 embeds the new generation data in the material data.
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