Facilitating tactile identification of a document attribute
US8932061B2 · kind B2 · utility
6Cited by
44References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2007 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Nov 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B21/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The illustrative embodiments described herein provide an apparatus and method for facilitating tactile identification of a document attribute. In one embodiment, the apparatus includes a document. The document has a set of document attributes. The apparatus also includes a fluid incorporated within the document at a designated location associated with a document attribute in the set of document attributes. The fluid changes rigidity in the presence of an electric field to facilitate tactile identification of the document attribute.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.