Method for automatically reading electronic tickets
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 25, 2003
Grant Date -
N/A
app pub date -
May 19, 2000
filing date -
May 19, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An automatic method for reading a graphic field on a ticket so that the ticket may be processed quickly without human error. The graphic field 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 will change in appearance when the ticket originally printed by the personal computer printer is digitally reproduced by either scanning or photocopying.
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Family
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Cited Art Landscape
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