Postage due detection system

Details Postage due detection system Postage due detection system

1993-11-17

1999-08-24

Johns, Andrew W.

Image analysis

Applications

Mail processing

209584, G06K 900

Patent

active

059434325

ABSTRACT:
A coded postal stamp which carries machine readable indicia representative of a minimum postal denomination. The indicia may be in the form of a UPC code, special inks which can be scanned or specially placed numerals which are easily optically read. The method of the invention includes the steps of scanning postal material such as first class letters previously sorted, and detecting the presence of the coded stamp. Postal material having less than a predetermined denominational amount are rejected.

REFERENCES:
patent: 4864618 (1989-09-01), Wright et al.
patent: 4868757 (1989-09-01), Gil
patent: 4900904 (1990-02-01), Wright et al.
patent: 4940887 (1990-07-01), Sheng-Jung
patent: 5122967 (1992-06-01), Gilham
patent: 5149139 (1992-09-01), Kaule
patent: 5267754 (1993-12-01), Kaule
patent: 5319562 (1994-06-01), Whitehouse

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