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US 8,133,055 B2Granted
Refreshable braille display device
OwnerDaniel Charles Minnich, Hanna Francis Bawab +2inventors
InventorsDaniel Charles Minnich, Hanna Francis Bawab, Jarrod Robertson, Patrick Doll
Life of this patent
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Abstract
Disclosed is a refreshable Braille display device comprised of a rotary character display assembly which can display a refreshable Braille character in the plane of the rotary display assembly. Also disclosed is a method of displaying a refreshable Braille character.
Claims16
A refreshable Braille display device comprising,
- a Braille character display assembly comprising:
- at least one rotary plate configured to rotate about a rotary axis- and defining a plurality of bearing chambers, wherein the plurality of bearing chambers each have a bearing disposed therein and form at least one Braille character cell array configured to rotate about, and in a plane substantially perpendicular to, the rotary axis;
- and
- a means for selectively positioning the bearing in at least one bearing chamber in the at least one Braille character cell array.
1 more element
A method for displaying a refreshable Braille character, comprising:
- a) providing a substantially planar Braille character display assembly comprising a plurality of bearing chambers, wherein the plurality of bearing chambers each have a bearing disposed therein and form a plurality of Braille character cell arrays configured to rotate about, and in a plane substantially perpendicular to, a rotary axis;
- b) selectively positioning the bearing in at least one of the plurality of bearing chambers to display a raised Braille character dot;
- and
- c) selectively maintaining the selectively positioned bearing of step b) while the substantially planar Braille character display assembly is rotated at least one revolution about the rotary axis.
1 more element
Dependencies are inferred from the claim text.