Printing of postal indicia and detection thereof

Details Printing of postal indicia and detection thereof Printing of postal indicia and detection thereof

2001-04-04

2010-02-23

Worjloh, Jalatee (Department: 3685)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Postage metering system

C705S060000, C705S061000, C705S401000, C705S410000

Reexamination Certificate

active

07668784

ABSTRACT:
The invention provides a method of detection of an imprint of a postal indicium at a location on a mail piece. The method involves utilizing a sensor to scan along a band on the mail piece to detect a sequence of transitions between light and dark reflectance areas within a band extending across the said location. AN indication of the presence of the imprint of the postal indication is generated in response to detection of a transition succeeding a predetermined number of initial transitions at a start of the sequence of transitions.The invention also provides apparatus for imprinting postal indicia on mail pieces. The apparatus comprises a printer operable to print a postal indicium in a required location on the mail piece. A first sensor is provided that is responsive to reflectance transitions between light and dark along a band of the mail piece extending across the said location. The first sensor generates a sequence of first signals corresponding respectively to reflectance transitions along the said band. The apparatus further includes means operative in response to a first signal occurring after a predetermined number of said first signals at a start of said sequence to generate a second signal which is indicative of a postal indicium imprint on the mail piece.

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patent: 0938066 (1999-08-01), None
Tygar et al., Cryptogrpahic Postage Indicia, Jan. 1996.
“Information Based Indicia Program (IBIP) Indicium Specification”, Jun. 13, 1996.

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