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Briefing document  13 pages  346 KB PDF

Indigenous Authentication and Searching System and Method
Patent US 8,219,545  July 10, 2012

8219545-Signa2-Email.pdf   Full document  33 pages  1.9 MB PDF
8219545-Signa2-Email-page_1.pdf       First page only  70 KB PDF

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Indigenous Authentication for sensor-recorders
and other information capture devices.
Patent US 6,757,828  June 29, 2004
Patent Japan 4,447,219 January 29, 2010