US 6,212,570 B1Granted

Information distribution device selection system

AssigneeNippon Telegraph and Telephone Corporation

InventorsKatsuyuki Hasebe, Shin Miyakawa, Hitoaki Sakamoto, Isao Iwasa, Toyonori Fujiura, Takayuki Nakao

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Abstract

An information distribution device selection system capable of selecting one information distribution device that is logically closest from the user communication terminal among a plurality of information distribution devices on inter-connected communication networks is disclosed. The system is formed by: a plurality of information distribution service communication networks having an identical communication network identifier, each of which also has an individual communication network identifier for identifying each information distribution service communication network on the inter-connected communication networks; a plurality of communication network exchange devices respectively provided in the information distribution service communication networks, each of which has a routing control function; and a plurality of information distribution devices respectively provided in the information distribution service communication networks and having an identical communication terminal identifier, each of which also has an individual communication terminal identifier for identifying each information distribution device on the inter-connected communication networks.

Claims14

Dependent claims

An information distribution device selection system for selecting one information distribution device on an inter-connected communication networks formed by a plurality of communication networks, which provides an information in response to a request from a user terminal device or an information distribution relay device, the system comprising:

a plurality of information distribution service communication networks which are physically different but having an identical communication network identifier, each information distribution service communication network also having at least one individual communication network identifier for identifying each information distribution service communication network on the inter-connected communication networks which is assigned from a set of individual communication network identifiers to be used in one-to-one communications:
a plurality of communication network exchange devices respectively provided in the information distribution service communication networks, each communication network exchange device having a routing control function for inter-connecting a corresponding information distribution service communication network with other information distribution service communication networks;
and
a plurality of information distribution devices respectively provided in the information distribution service communication networks and having an identical communication terminal identifier, each information distribution device also having at least one individual communication terminal identifier for identifying each information distribution device on the inter-connected communication networks which is assigned from a set of individual communication terminal identifiers to be used in one-to-one communications.

1 more element

A local unit constituting an information distribution device selection system for selecting one information distribution device on an inter-connected communication networks formed by a plurality of communication networks, which provides an information in response to a request from a user terminal device or an information distribution relay device, the local unit comprising:

an information distribution service communication network having an identical communication network identifier as other information distribution service communication networks in the system and at least one individual communication network identifier for identifying the information distribution service communication network on the inter-connected communication networks which is assigned from a set of individual communication network identifiers to be used in one-to-one communications;
a communication network exchange devices provided in the information distribution service communication network, having a routing control function for inter-connecting the information distribution service communication network with other information distribution service communication networks in the system;
and
an information distribution device provided in the information distribution service communication network, having an identical communication terminal identifier as other information distribution devices in the system and at least one individual communication terminal identifier for identifying the information distribution device on the inter-connected communication networks which is assigned from a set of individual communication terminal identifiers to be used in one-to-one communications.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 09/143,762Filed 31 Aug 1998 · us provisional application
Priority: 29 Apr 1998
Granted: 3 Apr 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04L 61/35
Network arrangements, protocols or services for addressing or naming: involving non-standard use of addresses for implementing network…
H04L 61/00
Network arrangements, protocols or services for addressing or naming
H04L 67/1021
Server selection for load balancing: based on client or server locations
H04L 67/1023
Server selection for load balancing: based on a hash applied to IP addresses or costs