| 摘要 |
The invention discloses a system and method for blind people for detecting hyperlinks and for accessing from said hyperlinks multimedia information and/or services located on one or a plurality of servers connected to a communication network. While a user is reading a page on a Braille document, a proximity sense foil placed under the page detects the position of his fingertips and computes the coordinates of the sensed position. These coordinates are sent to a workstation. The user workstation then computes the distance between the sensed position and the positions of the hyperlinks defined on this page. The coordinates of hyperlinks are stored in an hyperlink table during an initial phase. If the computed distance between the sensed position and a certain hyperlink on the hyperlink table is smaller than a predetermined minimum value, it is concluded that user's fingertips are positioned over the corresponding hyperlink. The user workstation then warns the user by means of an acoustic signal or any other perceptible signal that an hyperlink is associated with the item he presently reads. The user then can choose to activate this hyperlink by any means (e.g., by pressing a special key on the user workstation). When the user activates the detected hyperlink, the user workstation identifies in the same hyperlink table a server and within this server the information and/or the service associated with the detected hyperlink. Finally, a request is sent to the identified server for accessing the desired information and/or service. In a particular embodiment, the user workstation is connected to the Internet network and comprises a Web Browser application. Servers are Web servers and the information or/and the service are Web pages linked to the items embossed or engraved on the Braille document. |
