Sensory aid for visually handicapped people

Details Sensory aid for visually handicapped people Sensory aid for visually handicapped people

1978-08-09

1980-10-07

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 83, H04N 700

Patent

active

042272092

ABSTRACT:
A sensory aid system for visually handicapped persons. The system provides a magnified image of graphical material, such as text. The system includes an image sensor which may include a lens assembly and photodiode detector array. The image sensor is coupled to a display array, with each detector array element having a one-to-one correspondence with one (or a group of) display array elements. The display array may be adjusted electronically to provide any degree of magnification simply by changing the number of elements in the array driven by the signal information. The display array elements may be red light emitting diodes (LED's). In this form, the present invention provides a magnified brightly illuminated red image of the black areas of print against a black, or dark, background, instead of the conventional text format of black print (information) on white paper (noise).

REFERENCES:
patent: 2866182 (1958-12-01), Mash
patent: 2909668 (1959-10-01), Thurlby et al.
patent: 3243508 (1966-03-01), Sclar
patent: 3562408 (1971-02-01), Collins et al.
patent: 3566130 (1971-02-01), Woburn
patent: 3699346 (1972-10-01), Harwood et al.
patent: 3766311 (1973-10-01), Boll
patent: 3883778 (1975-05-01), Kaji et al.
patent: 3971931 (1976-07-01), Jehle
"A Portable CCTV Aid for the Partially Blind," Amer. J. Optom. & Arch. Amer. Acad. Optom., vol. 49, No. 2, pp. 178-179 Feb. 1972.

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