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Diagnostic Method for Analog Circuit

IP.com Disclosure Number: IPCOM000035882D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue

IBM

Related People

Authors:
Inui, T Kumaki, A Nakajima, M Kumakura, K [+details]

Abstract

This article describes a method of adding a simple simulation circuit to diagnose an analog input circuit by microcode. A key problem with diagnostics for analog circuits of computer input devices is that an image scanner provides the instability of analog input signals to an analog-to-digital (A/D) converter. (Image Omitted) Following is the summary of the additional circuit and microcode: