Cryptography – Electric signal modification – Having production of printed copy
Patent
1996-01-02
1997-08-05
Tarcza, Thomas H.
Cryptography
Electric signal modification
Having production of printed copy
380 23, H04K 100
Patent
active
056550243
ABSTRACT:
The method provides for tracking a meter vault which is adapted for use in combination with a graphic interface unit. The graphic interface unit includes the graphics for the indicia town circle with an assigned area of origin code. The meter vault has an input keyboard for inputting additional information to the meter vault. The method involves the steps of storing the unique code of origin information in the non-volatile memory of the meter vault during initialization of the meter vault and in the graphic interface unit. During each power-up cycle of the meter vault request the unique code of origin from the graphic interface unit, A comparison of the received code of origin with the store code of origin is made. If the codes comparison is untrue, the meter locks requiring the manufacturer to issue an unlock code after verification of meter vault location.
REFERENCES:
patent: 5181245 (1993-01-01), Jones
patent: 5377268 (1994-12-01), Hunter
patent: 5448641 (1995-09-01), Pinstov
Bell Easton F.
Siveyer Ian A.
Chaclas Angelo N.
Parks, Jr. Charles G.
Pitney Bowes Inc.
Scolnick Melvin J.
Tarcza Thomas H.
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