Full document  33 pages        1.5 MB PDF
First page only                        45 KB PDF
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

6757828-signa2.pdf 
6757828-pg1.pdf 
Signa2-Brief-v2b.pdf