Switched circuit connection management over public data networks for wide area networks
US5537404A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1995 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Apr 25, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/52
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a wide area network implemented on a circuit-switched public data network. Terminals have access to a plurality of data channels and a control channel into the network using a balanced protocol. The invention provides a method for reducing connect time between the terminals over the data channels. To do this a conversation is established between a transaction program on the local terminal and a transaction program on the remote terminal. Responsive to generation of a frame for transmission by the transaction program on the local terminal to the transaction program on the remote terminal, a channel connection between the local terminal and a remote terminal including a data channel connecting each terminal into the wide area network is established if no channel connection already exists. Responsive to expiration of a predetermined period after last transmission or receipt of a frame and existence of the channel connection for a minimum connect period, the channel connection is disestablished without interrupting the conversation between the transaction programs. The predetermined period and the minimum connect period are optimized to minimize costs under a t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.