Accessing control with predetermined priority based on a feedback arrangement
US5068782A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1989 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Oct 5, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/468
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Accessing control means and methods are provided for controlling the granting of access by a plurality of requestors to a commonly shared unit on a predetermined priority basis. An addressable programmed memory, such as a ROM, is programmed to provide a predetermined access priority. The ROM operates in response to sequentially applied addresses to produce ROM outputs which determine the manner in which access is granted to the requestors. Each ROM output also includes history outputs which are fed back and combined with requestor signals to form each ROM address, whereby requestor access grating selection is determined based on previous access granting history as well as on current request status.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.