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Locating Attributed Mask Personalization from Unattributed Description

IP.com Disclosure Number: IPCOM000045656D
Original Publication Date: 1983-Apr-01
Included in the Prior Art Database: 2005-Feb-07

Publishing Venue

IBM

Related People

Authors:
Hurd, JJ Zbrozek, JD [+details]

Abstract

Certain masks typically used to fix the status of a read-only store (ROS) or a programmable logical array (PLA) are a series of transparent openings in an opaque background. Where the openings exist only at selected ones of the possible locations, the mask is personalized and the ROS or PLA made from such a mask is correspondingly personalized. When software defining a personalized mask does not have location information as an attribute of each possible opening location, that may be obtained, as here described, by merging in ordered sequence the unattributed information with an attributed description of the mask with all locations assumed to carry the same information.