Patent · US Expired

Microprogrammed controller

US4115852A · kind A · utility

14Cited by
6References
28Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 7, 1976
Grant dateSep 19, 1978
Priority date
Expiry dateDec 7, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F13/124
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A microprogrammed controller for interconnection between a central processor unit and at least one peripheral unit for controlling the transfer of data therebetween in response to instructions from the central processor unit provides for simplified bit manipulation through a feedback circuit which feeds the data to be supplied to the peripheral unit back to the input bus of the controller for further processing. In this way bit manipulation can be accomplished with a single microinstruction to provide for higher speed and efficiency of operation.

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