Patent · US Expired

Microprogram control units

US4021779A · kind A · utility

12Cited by
5References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 13, 1975
Grant dateMay 3, 1977
Priority date
Expiry dateNov 13, 1995

Classification

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

Abstract

A microprogram control unit comprises a microprogram store and an interactive processor processing the micro instructions issued by the microprogram store to produce expanded system control signals, at least some of the processing elements of the interactive processor being each responsible for producing a unique subset of control signals, no other processing element being directly involved in producing control signals in that subset. The processing elements may be self-sequencing stores, the micro instruction supplying the initial entry point for each store may be provided with its own automatic looping facility.

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