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.
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