HYBRID EPG SERVER WITH SERVICE DISPATCHER TO BUILD A DISPATCHER REDUNDANCY CHAIN IN CLUSTERED IPTV EPG SERVICE
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United States of America Patent
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Issued Date -
Jan 15, 2009
app pub date -
Jul 12, 2007
filing date -
Jul 12, 2007
priority date (Note) -
Abandoned
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Abstract
An EPG service architecture incorporates multiple EPG servers connected in a cluster with each EPG server having an EPG service module and a dispatcher. Each dispatcher has the capability for state determination as an active or standby dispatcher. A plurality of STBs interface with the EPG server cluster and issue requests for EPG service which are routed by the active dispatcher. The routing is accomplished by redirection of the request to an EPG service module selected from the multiple EPG servers in the cluster. Each EPG service module includes the capability for service connection to the STB upon receiving the redirection from the active dispatcher. Upon a determination that the current active dispatcher is not operating, the standby dispatchers vote for a replacement which then assumes the active dispatcher role.
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