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SIGNAL PROCESSING TO HIDE PLURAL-BIT INFORMATION IN IMAGE, VIDEO, AND AUDIO DATA

90/5,911 | U.S. Patent Application

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Location At National Archives - Contact Records Management at RecordsManagementTeam@USPTO.gov
Filed Jan. 16, 2001
Examiner ANDREW W JOHNS
Class 382
Art Group 2665
Case Type Re-Examination - 382/100000
Status Reexamination Certificate Issued
Parent 08/967,693 Patented
Parent 08/614,521 Patented
Parent 08/215,289 Abandoned
Parent 08/154,866 Abandoned
Last Updated: 4 years, 10 months ago
Date # Transaction