Shared storage for multiple processor systems
US4313161A · kind A · utility
33Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1979 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Nov 13, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system is provided that includes a plurality of processors connected to a shared storage via an asynchronous storage interface that includes various interface logic and a ring counter that performs polling of the processors for access to the shared storage. The ring utilizes a "lookahead" feature that bypasses stages in the ring to speed up responses to request signals from the processor. The logic uses the clock from the particular processor accessing the shared memory at any point in time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.