Portable print reading device for the blind

Education and demonstration – Communication aids for the handicapped

Reexamination Certificate

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Details

C434S113000, C434S114000, C434S116000, C382S114000

Reexamination Certificate

active

06948937

ABSTRACT:
A portable print reading device includes a high resolution digital camera to which the following additional functions have been added:image centering by tactile or sound information, obtained from the analysis or real time video signals provided by the camera sensor,optical recognition of the characters contained in an image,conversion of recognized text into synthetic speech,conversion of recognized text into Braille,positioning of the reading cursor anywhere inside documents recognized and temporarily stored in the reading device memory: beginning of a page, a paragraph, a line, word search, etc.,processing of raw images provided by the camera to allow the transfer of whole images or selected image parts to a tactile graphic array, to allow blind users to apprehend graphic elements of such an image, andcontrol of the camera functions by electrical signals provided by the recognition of commands spoken by the user.

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