Browse Prior Art Database

Acoustic Keyboard Seal

IP.com Disclosure Number: IPCOM000087585D
Original Publication Date: 1977-Feb-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 24K

Publishing Venue

IBM

Related People

Dean, TF: AUTHOR [+2]

Abstract

Noise from keyboards cannot be reduced to a desired level by membranes used on present keyboards.

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Acoustic Keyboard Seal

Noise from keyboards cannot be reduced to a desired level by membranes used on present keyboards.

Noise coming from the keyboard can be further reduced by installing a thin open cell foam 10 which has elongated holes 12 in it for the keystems 14. Then the membrane 16, with slits 18 instead of holes for the keystems, is placed on top of the foam.

Airborne sound coming out of the keyboard is absorbed and acoustic energy is dissipated by the foam.

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