Patent Number: 6,168,080

Title: Capacitive method and apparatus for accessing contents of envelopes and other similarly concealed information

Abstract: The contents of sealed envelopes are accessed by detecting and digitizing a change in capacitance produced when a pattern of dielectric or conductive ink is passed by a sensitive capacitance sensor. The capacitance changes are converted into corresponding electrical patterns for further processing.

Inventors: Verschuur; Gerrit L. (Lakeland, TN), Mitchell, Jr.; Chauncey T. (Lakeland, TN), Leordeanu; Corneliu C. (Memphis, TN)

Assignee: Translucent Technologies, LLC

International Classification: B07C 3/10 (20060101); B07C 3/12 (20060101); G06K 19/067 (20060101); G06K 7/08 (20060101); G06K 007/10 ()

Expiration Date: 01/02/2018