Browse Prior Art Database

Test Pattern Generator

IP.com Disclosure Number: IPCOM000042816D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04

Publishing Venue

IBM

Related People

Authors:
McDowell, AW Newkirk, GL [+details]

Abstract

This circuit arrangement generates a customer-recognizable test pattern on the screen of a monochrome display unit which has been adapted by installation of an analog switch unit for connection to a personal computer logic element having either monochrome or color output signals. The test pattern generator allows the analog adjustments in the display unit having to do with the analog switch unit to be made without the presence of the personal computer logic element. Further, the test pattern generator facilitates problem determination by isolating a problem, if one occurs, as coming from the display unit portion or the personal computer portion of the completed assembly. Fig.