US Patent 7,134,597
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
A voting system that allows voters who may be blind or otherwise disabled to use election ballots without needing to see the ballot. The present invention provides a balloting system which presents and holds an election ballot while allowing a voter to cast and inspect votes. The system provides audible or tactile feedback when voting targets are probed with a wand or other pointing means. The feedback can comprise information pertaining to a candidate at a position on the ballot. The feedback can also comprise information pertaining to a mark that may or may not have been made on the ballot.
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Jones, Douglas W System for handicapped access to voting ballots. US Patent 7,134,597 filed August 23, 2002 and issued November 14, 2006. https://ir.uiowa.edu/patents/412