Accession Number : ADD015967

Title :   Light Update Notification Mechanism for Shared Data Structures.

Descriptive Note : Patent, Filed 3 Oct 91, patented 21 Sep 93,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Tavares, Carlos M

Report Date : 21 Sep 1993

Pagination or Media Count : 8

Abstract : A system for updating and reading a data base utilizes a pair of counters working in conjunction with registers located within RAM to enable one upon reading the data base to know if a data base record has been added, deleted, or revised. The system also notifies if the data base is being updated on attempting a read process or during the reading. The updating is performed by a writer that is never inhibited from updating the data base.

Descriptors :   *DATA BASES, *PATENTS, *DATA MANAGEMENT, COUNTERS, READING, RECORDS, INPUT, SHARING, INFORMATION RETRIEVAL, RANDOM ACCESS COMPUTER STORAGE

Subject Categories : Computer Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE