Patent · US Expired

Apparatus for generating a channel time-out signal after 16.38 milliseconds

US5581794A · kind A · utility

9Cited by
15References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 1, 1995
Grant dateDec 3, 1996
Priority date
Expiry dateMay 1, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2201/835
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An apparatus and method for processing channel time-out for input/output channels in a data processing system. A counting device is provided which cycles through a count indicative, in a first part, of each of a plurality of channels in the data processing system and, in a second part, a sequence of time indications. A time indication is saved for a particular channel upon the execution of an instruction for that channel and subsequent comparisons are made of the stored time indication and the present time indication to determine if a difference in these two time indications is sufficient to constitute a time-out.

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