Inventor
FERGUSSON ROBERT T
US3 patents
Patents
3 patentsUS7187282B2Mar 6, 2007
Digital capacitive sensing device for security and safety applications
INVISA INC24 citations86
US7167093B2Jan 23, 2007
Method of steering capacitor fields for use in capacitive sensing security systems
INVISA INC23 citations86
US7023222B2Apr 4, 2006
Apparatus and method for processing capacitor sensor signals using digital frequency shift measurement techniques with floating reference
INVISA INC2 citations56