Browse Prior Art Database

Electronic Typewriter for the Handicapped

IP.com Disclosure Number: IPCOM000086640D
Original Publication Date: 1976-Oct-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 89K

Publishing Venue

IBM

Related People

Suding, R: AUTHOR

Abstract

Communication by and with handicapped persons is facilitated by a typewriter having a simplified keyboard, dual-electronic displays and an abbreviated stored vocabulary.

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Electronic Typewriter for the Handicapped

Communication by and with handicapped persons is facilitated by a typewriter having a simplified keyboard, dual-electronic displays and an abbreviated stored vocabulary.

The keyboard has single-function keys to eliminate the compli-cations of operating a separate shift key. The operation of one key locks the other keys to reduce the occurrence of undesired double entries. A "clear" key erases the display. Corrections are made by backspacing and overstriking. A "space" bar permits word separation. A buzzer is activated by depressing the "signal" key when a message is completed or attention is desired. The display accommodates 32 characters in two moving lines. Longer and larger displays are obtained by connecting the unit to a conventional television set. Two units may communicate with each other over a direct connection, or with telephone or teletype modems, via external input/output connections when an internal/external switch is in the "external" position.

A microprocessor provides entire word display for abbreviations previously stored in a memory from a conventional audio cassette. For example, entry of "DK" initially displays "DK" until a designated key (such as an "Expand" key) is pressed. The displayed "DK" is then replaced by "DON'T KNOW".

The keyboard supplies ASCII characters (with a modified sixth bit) to a shift register having 32 six-bit positions corresponding to 32 characters displayed on two panel drivers,...