Image Number 8 for United States Patent #7871271.
A user system for detection and access of hyperlinks within a Braille document. A hyperlink table is generated and includes for each touched item on a page of the Braille document: identification of the touched item, a hyperlink associated with the touched item, and spatial coordinates of the touched item on the page of the Braille document. After the hyperlink table is generated, a proximity sensing foil placed under a Braille page senses the position of a user's fingertips and provides coordinates of the sensed position on the Braille page. A distance between the sensed position and spatial coordinates stored in the hyperlink table is determined to be less than a predetermined distance, resulting in alerting the user via a signal, identifying a hyperlink in the hyperlink table associated with the sensed position, retrieving information from a destination address associated with the identified hyperlink, and displaying the retrieved information.