Braille encoding method and display system

Details Braille encoding method and display system Braille encoding method and display system

1987-03-16

1989-06-20

Apley, Richard J.

Education and demonstration

Communication aids for the handicapped

Tactile reading aid

G09B 2100

Patent

active

048405671

ABSTRACT:
A Braille display system which encodes text and displays that text on a mechanical Braille display using a three-dimensional Braille code. Each symbol of the code has four frames each of which comprises a 4X2 dot-position array. When the text first appears on the Braille display, the system initially presents the top frame of each symbol. The system also includes a frame selection control by which a user can cause each of the remaining three frames of the relevant Braille symbol to appear individually on the Braille display. When each succeeding frame appears, it replaces the preceding frame of the same symbol. Thus, by using the frame selection control, a user can examine all four frames of each symbol at his discretion.

REFERENCES:
patent: 4024536 (1977-05-01), Andersson
patent: 4033053 (1977-07-01), Engler
patent: 4266936 (1981-05-01), Rose
patent: 4445871 (1984-05-01), Becker
patent: 4516939 (1985-05-01), Crimmins, Jr.

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