Invention Grant
- Patent Title: High availability presence engine for instant messaging
- Patent Title (中): 用于即时消息的高可用性存在引擎
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Application No.: US10364273Application Date: 2003-02-10
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Publication No.: US07949712B2Publication Date: 2011-05-24
- Inventor: Lee G. Friedman
- Applicant: Lee G. Friedman
- Applicant Address: US NV Reno
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US NV Reno
- Agency: Thomas, Kayden, Horstemeyer & Risley, LLP
- Main IPC: G06F15/16
- IPC: G06F15/16

Abstract:
Systems for a high availability presence engine for instant messaging service comprise a plurality of presence engines for receiving presence information on users and a global table engine accessible to the plurality of presence engines. The global table engine includes user presence information and receives presence changes from the plurality of presence engines. A plurality of local tables are accessible to the plurality of presence engines and the global table engine. The plurality of local tables are configured such that each of the plurality of local tables is associated with at least one of the plurality of presence engines, and is configured to receive presence change information from the global table engine. Other systems and methods are also provided.
Public/Granted literature
- US20040158608A1 High availability presence engine for instant messaging Public/Granted day:2004-08-12
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