Browse Prior Art Database

Optical Keyboard

IP.com Disclosure Number: IPCOM000068766D
Original Publication Date: 1978-Feb-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Johnson, LL Palounek, LR [+details]

Abstract

This article describes a low-cost keyboard element utilizing the reflection of light beams as a means for indicating a key depression.