Coupling apparatus and method for increasing the connection capability of a communication system
US5432910A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1992 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Jul 7, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/124
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The connection capability of a communication controller is extended. The communication controller includes a central control unit CCU, running a network control program NCP stored in a memory having a direct memory access facility through a DMA bus. The input/output bus of the communication controller and DMA bus are connected to line adapters, and channel adapters and a controller extension through a coupler which allows additional adapters to be connected to the controller. At initialization, a table is built into a coupler memory, which is then used in steady state mode for controlling the transmission of the messages to the additional users and the reception of the messages from the additional users, by improving the buffer unchaining and chaining processes into the NCP memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.