Browse Prior Art Database

Tactile Transducer for Deaf Computer and Typewriter Users

IP.com Disclosure Number: IPCOM000120491D
Original Publication Date: 1991-Apr-01
Included in the Prior Art Database: 2005-Apr-02
Document File: 1 page(s) / 47K

Publishing Venue

IBM

Related People

Apuzzo, NC: AUTHOR [+2]

Abstract

A transducer for deaf computer and typewriter users is described, which produces tactile sensation from an audio electrical signal.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 79% of the total text.

Tactile Transducer for Deaf Computer and Typewriter Users

      A transducer for deaf computer and typewriter users is
described, which produces tactile sensation from an audio electrical
signal.

      Computer systems generally contain an audio output channel
which is activated and controlled by system software programs during
execution.  Simple beeping sounds, used almost exclusively during the
infancy stage of personal computer development, are giving way to
sophisticated multi-media multi-tasking environments.  Multi-media is
implemented to effect a synergy and flexibility of information
exchange between a user and a computing system.

      In the case of a deaf computer user, the sensation of sound can
be translated to tactile sensation, and thus restore partially the
synergy which would otherwise be lost. The synergy referred to here
is simultaneous stimuli of the senses; in this case sight (video
display terminal), and touch (tactile transducer).

      The tactile transducer uses the computer audio channel
electrical signal for input, and produces corresponding mechanical
vibration from a diaphragm or other surface.  The generation of
mechanical vibration is accomplished by either a traditional voice
coil motor, or a piezoelectric unimorph (or bimorph).  The sensing
surface can be any conveniently located area, such as the home keys
on a keyboard, any or all of the keys on a keyboard, an area on
the body of a mouse or puck input device, or a mo...