The InnovationQ application will be updated on Sunday, May 31st from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

Storage Protect Operations

IP.com Disclosure Number: IPCOM000052852D
Original Publication Date: 1981-Jul-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue


Related People

Cannon, JW Grimes, DW Herrman, BD [+details]


A single storage array is multiplexed between two different functions. U.S. Patent 4,038,645 describes a previous implementation of a storage protect feature which requires a dedicated memory array. The array's sole function is to store the various storage keys and ""read-only'' flags for the storage protect operations. U.S. Patents 4,037,215 and 4,050,094 describe a similar system with a relocation translator feature that enables rapid accessing of selected addressable blocks in a main memory.