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TACTILE ENHANCEMENT FOR CAPACITIVE KEYBOARD

IP.com Disclosure Number: IPCOM000024871D
Original Publication Date: 1982-Aug-31
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal

Abstract

Among the inexpensive keyboards today are touch sensitive capacitively coupled keyboards. The key is activated by the change of electrical capacitance due to finger placement on the key. These types of keys have not gained wide acceptance because the keys are easily, accidentally triggered. Also, there is no firm feedback either mechanically due to sense of touch or audability; thereby informing a user that the key has been, in fact, actuated. This is referred to as tactile feedback.