Patent · US Expired

Authorization mechanism for establishing addressability to information in another address space

US4430705A · kind A · utility

100Cited by
10References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 23, 1980
Grant dateFeb 7, 1984
Priority date
Expiry dateMay 23, 2000

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F12/14
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Permits one program in one address space to obtain access to data in another address space without invoking a supervisor. Each of a plurality of address spaces assigned an Address Space Number (ASN) has an associated set of address translation tables. Addressability to a second address space may be specified by a program if authorized in accordance with the entry of an authority table associated with the second address space, the entry being designated by an authorization index associated with the program.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.