Diagnostic system having multi-level port and flexible interface with a main port control unit and plurality of order port and primary port control units
US5088022A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1989 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Jul 14, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a system for diagnosing information processor system units by diagnostic processor connected to said system units through an interface, in order to meet desire of increase and decrease of the system units, the interface comprises a plurality of port control units which have a circuit formation and are readily disconnected and connected thereto so that number of port controllers can be readily increased or decreased. The system units are classified into a plurality of primary groups each having a predetermined number (m) of system units, the primary groups being classified into a plurality of secondary groups each having m primary groups, thus, groups of a low order being classified into groups of a higher order so that the group number of the maximum order becomes less than m. The port control units are corresponding to the order groups and are connected to one another in such a manner that lower order port control units are connected to higher order port control units. The port control units of the maximum order are connected to the diagnostic processor through a similar main port control unit and each of the primary control unit are connected to the system units. A specific on…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.