Optically readable marking sheet and reading apparatus and method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 29, 2011
Grant Date -
Nov 26, 2009
app pub date -
Sep 9, 2008
filing date -
Apr 30, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ballot or sheet having an anti-copying feature provides for detecting from an image of the ballot or sheet whether the ballot or sheet is an original or is a copy. The anti-copying feature may lighten or darken, or both, when copied and may or may not be evident to the human eye. A reader comprising an imager and a processor is for reading the ballot or sheet and for determining whether the ballot or sheet is an original or is a copy, and for determining selections marked thereon. A method for reading the ballot or sheet is for determining from an image of the ballot or sheet whether the ballot or sheet is an original or is a copy, and for determining selections marked thereon.
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