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Patent applications and USPTO patent grants for Fergusson; Robert T..The latest application filed is for "method of steering capacitor fields for use in capacitive sensing security systems".
Patent | Date |
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Digital capacitive sensing device for security and safety applications Grant 7,187,282 - Fergusson March 6, 2 | 2007-03-06 |
Method of steering capacitor fields for use in capacitive sensing security systems Grant 7,167,093 - Fergusson January 23, 2 | 2007-01-23 |
Method of steering capacitor fields for use in capacitive sensing security systems App 20060152361 - Fergusson; Robert T. | 2006-07-13 |
Apparatus and method for processing capacitor sensor signals using digital frequency shift measurement techniques with floating reference Grant 7,023,222 - Fergusson April 4, 2 | 2006-04-04 |
Digital capacitive sensing device for security and safety applications App 20060055534 - Fergusson; Robert T. | 2006-03-16 |
Apparatus and method for processing capacitor sensor signals using digital frequency shift measurement techniques with floating reference App 20050248355 - Fergusson, Robert T. | 2005-11-10 |
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