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US 5,293,464 AGranted
Braille reading display terminal device
AssigneesNEC Corporation, KGS Corporation
InventorsHiroshi Hirano, Yoshitaka Osaki, Junji Yamazaki
Life of this patent
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Abstract
The present invention relates to a Braille reading display terminal device in which a non-intelligence-type Braille reading input/output unit is connected to a host computer through an expansion bus, an expansion bus interface is interposed between the input/output sections of the Braille reading input/output unit and the expansion bus, and unit input/output elements of the input/output sections sections are accessed or controlled through the expansion bus based on software in the host computer.
Claims6
A Braille reading display terminal device comprising:
- input/output means, including a Braille reading keyboard, a Braille reading display and a voice synthesizer, for inputting and outputting data, said input./output means having no intelligence functions therein;
- an expansion bus having an interface function and no intelligence function;
- and
- a host computer connected to said input/output means through said expansion bus;
- and
- said host computer including software controlled means for exclusively controlling transferring of information including control information between said host computer and said input/output means, and wherein said host computer access and controls at least one of said Braille reading keyboard, said Braille reading display and said voice synthesizer of said input/output means through said expansion bus without requiring intelligence functions in said input/output means or in said expansion bus, and wherein said input/output means and said expansion bus do not control said transferring of information between said host computer and said input/output means.
3 more elements
Dependencies are inferred from the claim text.