Tactiley-guided, voice-output reading apparatus

G - Physics – 06 – K

Patent

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Details

G06K 9/22 (2006.01) G06F 3/00 (2006.01) G06F 3/033 (2006.01) G06K 9/20 (2006.01) G06K 9/54 (2006.01) G09B 21/00 (2006.01)

Patent

CA 2245769

An optical-input print reading device (1) for people with impaired or no vision in which the user passes a mouse assembly (2) containing a camera (25) over the text to be read. Images of this text are input to a computer (3), which decodes the images into their symbolic meanings through optical character recognition (31). By assembling words together from overlapping groups of text elements, whole words are created. Using also the recognized character position output of the optical character recognition (31), the computer (3) directs a linear tactile display (53) contained within the mouse (2) assembly to indicate to the user the presence and vertical alignment of recognized alphanumeric text under the unit. This feedback allows the user to locate and properly align and guide the mouse (2) assembly across the text to be read. Furthermore, through a speech synthesizer (61), the words are spoken audibly as they are passed over. As the divice requires only one hand to operate, its uses include reading food packaging, pill bottlles, currency, and price tags, as well as printed sheets. In a portable form, this device provides a means for low-vision and blind people to function more fully in their everyday lives.

Ce dispositif de lecture (1) d'imprimés à entrée optiques, destiné aux malvoyants ou aux aveugles, permet à l'ulitisateur de faire passer un ensemble souris (2) contenant une caméra (25) sur le texte à lire. Les images de ce texte sont introduites dans un ordinateur (3) qui les décode en leur sens symboliques par reconnaissance optique (31) de caractères. En assemblant des mots provenant d'éléments textuels en chevauchement, on recrée des ensembles complets. En utilisant également le signal de sortie concernant la localisation des caractères propre à la reconnaissance optique de caractères (31), l'ordinateur (3) commande un afficheur tactile linéaire (53) situé dans l'ensemble souris (2), ce qui indique à l'utilisateur la présence et l'alignement vertical d'un texte alphanumérique reconnu placé sous l'appareil. Cette rétroaction permet à l'utilisateur de placer, d'aligner correctement et de guider l'ensembe souris (2) sur le texte à lire. De plus, grâce à un synthétiseur vocal (61), les mots sont prononcés de façon audible quand ils sont parcourus. Comme ce dispositif peut s'utiliser d'une seule main, ses utilisations portent sur la lecture d'emballages alimentaires, de flacons de pilules, de billets de banque, d'étiquettes de prix ainsi que d'imprimés. En version portative, ce dispositif permet aux malvoyants et aux aveugles de mener une vie quotidienne plus riche.

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