Intuitively ordered tactile characters readable by visually impaired persons
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United States of America Patent
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Sep 20, 2011
Grant Date -
Nov 11, 2010
app pub date -
May 8, 2009
filing date -
May 8, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A reduced number of selectable inputs that enable efficient communication. Simplified tactile and optically machine readable code of raised embossments, particularly for unsighted and visually impaired persons is provided, in which each character is represented by a cell of indicia of an intuitive systematic code. For the alphabet, the cells are configured in ordered positions, which correspond to the order of the alphabet, and thereby, assist in tactile perception so that a person may easily identify the character by touch. Also, optical machines are enabled to easily read the characters; and a keyboard is provided for producing the same.
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