Communication system, client apparatus, server apparatus, communication method, and program
US9277016B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2013 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Aug 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/55
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a communication system in which a server apparatus on the Internet is connected to at least one client apparatus on an intranet via a firewall, the client apparatus comprises: acquisition means for acquiring, from the server apparatus, information associated with a transmission interval at which notifications are periodically transmitted to maintain the connection to the server; and management means for maintaining the connection by periodically transmitting the notifications based on the information associated with the acquired transmission interval, and the server apparatus comprises: decision means for deciding an interval, in which the connection in the push communication can be maintained in non-communication, based on the communication status information; and notification means for notifying the client apparatus of the decided interval as information associated with the transmission interval used to maintain the connection in the push communication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.