Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output addressing
Reexamination Certificate
2004-08-19
2010-11-30
Kindred, Alford W (Department: 2181)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output addressing
C709S225000, C709S245000, C455S435100, C726S003000
Reexamination Certificate
active
07844745
ABSTRACT:
This invention relates to methods and apparatus for providing a resilient network database. The invention relates particularly, but not exclusively, to the IP Multimedia Subsystem (IMS). The invention is directed to an interface for a database node comprising: a port for receiving a request for information from a network node; a processor for determining if the database node can respond to said request; and a transmitter for forwarding the request to another database node if the particular database node cannot respond. The invention is also directed to a distributed database comprising a number of database nodes, wherein a request received by one node is forwarded to other nodes in the distributed database if the particular node cannot handle the request.
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Kim et al., “A Design of Home Subscriber Server for IP Multimedia Service in All-IP UMTS Network”, 2003, pp. 2073-2077.
Candaten Matteo
Darbyshire Alan
Kindred Alford W
Nortel Networks Limited
Trop Pruner & Hu P.C.
Unelus Ernest
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