Patent · US Expired

Data processor control subsystem

US4400776A · kind A · utility

1Cited by

6References

5Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Dieter Bazlen · Stuttgart, DE
Dietrich W. Bock · Schenefeld, DE
Klaus J. Getzlaff · Schenefeld, DE
Johann Hajdu
Helmut Painke · Eppelheim, DE

Key dates

Filing date	Sep 12, 1980
Grant date	Aug 23, 1983
Priority date	—
Expiry date	Sep 12, 2000

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/3869
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An improved data processor control subsystem in which a cycle counter having a plurality of cascade-connected stages also comprises one or more supplemental or dummy stages, which can be selectively inserted or removed from the chain of cascade-connected stages, to alter the number of sub-cycles in an operating cycle, thereby decreasing the complexity of associated decoding circuitry.

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