Browse Prior Art Database

Keyboard Simulator Card

IP.com Disclosure Number: IPCOM000045437D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-07

Publishing Venue

IBM

Related People

Authors:
Jorgenson, G [+details]

Abstract

This article describes a keyboard simulator card which simulates the capacitance for a keyboard at all key positions. It is used with a sense amp card to test the card to see if it will work to the specification of a particular keyboard. The pivot plate down capacitance (to be described hereinafter) is simulated and automatically switched to any drive/sense line combination. The same is true for the pivot plate up capacitance.