Title:
METHOD FOR AUTOMATICALLY READING ELECTRONIC TICKETS
Document Type and Number:
WIPO Patent Application WO2002023487
Kind Code:
B1
Abstract:
An automatic method for reading a graphic field (21) on a ticket (11) so that the ticket (11) may be processed quickly without human error. The graphic field (21) is designed to produce a "tell", a visible known image (a large number of detectable halftone gray steps) when printed by a personal computer printer. Additionally, the graphic field (21) will change in appearance when the ticket (11) originally printed by the personal computer printer is digitally reproduced by either scanning or photocopying.
Inventors:
SANSONE RONALD P
Application Number:
PCT/IB2001/002477
Publication Date:
February 20, 2003
Filing Date:
May 17, 2001
Export Citation:
Assignee:
PITNEY BOWES INC (US)
International Classes:
G07B15/00; G07B17/00; (IPC1-7): G06K15/00; G06K9/00; H04L9/00
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