Patent · US Expired

Stored-program control machine

US4399516A · kind A · utility

13Cited by
6References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 10, 1981
Grant dateAug 16, 1983
Priority date
Expiry dateFeb 10, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F9/223
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A hierarchical organization of programmable logic arrays permits the control of microprocessor functions to be achieved in a way which allows otherwise wasted clock time to be used. The mostly independent operations of the several PLA's is organized by "handshake" signals from the latches of one PLA to those of another via AND circuits operative to selectively enable clock signals, in some instances, and data in other instances, to be applied to the latches. The use of the AND circuits enables requisite operations to be achieved with relatively small PLA's.

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