Patent · US Expired

Lock processing system

US5175861A · kind A · utility

4Cited by
8References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 23, 1991
Grant dateDec 29, 1992
Priority date
Expiry dateDec 23, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F9/52
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A lock processing system which judges locking requests from a plurality of processors. The lock processing system contains two system control units. Locking or unlocking information is transferred between the two system control units. The lock processing system stores the information transferred between the two system control units and judges whether there is a conflict for locking or unlocking. The lock processing system dispenses with hardware otherwise needed for transferring between system control units.

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