Arrangement for the input and processing of characters and/or gr

Details Arrangement for the input and processing of characters and/or gr Arrangement for the input and processing of characters and/or gr

1988-09-26

1990-02-06

Schreyer, Stafford D.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

178 18, 341 5, G06F 302

Patent

active

048991376

ABSTRACT:
An apparatus for the input and processing of characters and/or graphic patterns for use with electronic data processing systems includes an input unit and a control unit which transmits the input characters and/or graphic patterns to an output unit, a graphics tablet having an input layer, a plurality of sensor elements disposed on the input layer for converting pressure signals into electrical signals which are adapted for transmission to the control unit, a keyboard which is movable relative to the input layer from a keyboard operating position adjacent to the input layer to expose the input layer to enable direct entry thereto, and an operating mode detector for detecting whether the keyboard is in the operating position.

REFERENCES:
patent: 4326193 (1982-04-01), Markley et al.

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