Advertisement search agent
First Claim
1. An advertisement search agent module comprising:
- a message acquisition unit for acquiring advertisement search messages including a search message, a service availability advertisement message, and a service unavailability advertisement message broadcast or multicast by a node connected to either one of a plurality of domains;
a message database for storing the advertisement search messages acquired by said message acquisition unit;
a node connection monitoring unit for detecting a connection of said node to either one of said domains;
a delivery message extractor having at least one of a first extracting function to extract only said search message and said service availability advertisement message delivered from the connected node, of said advertisement search messages stored in said message database, and a second extracting function to recognize a node connected to the domain to which said node is connected, and extract only said search message and said service availability advertisement message delivered from the node connected to said domain, when the connection of said node is detected by said node connection monitoring unit; and
a message delivery unit having at least one of a first delivery function to deliver said search message and said service availability advertisement message extracted by said first extracting function of said delivery message extractor to the domain to which said node is connected, and a second delivery function, to deliver said search message and said service availability advertisement message extracted by said second extracting function of said delivery message extractor to the node connected to said domain, when the connection of said node is detected by said node connection monitoring unit.
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Accused Products
Abstract
An advertisement search agent detects a service that is provided by a node or a service that can be used by a node immediately after the node is newly connected to a domain. A message acquisition unit acquires an advertisement search message broadcast or multicast by a node connected to either one of a plurality of domains. A message database stores advertisement search messages acquired by the message acquisition unit. A node connection monitoring unit detects the connection of a node to either one of a plurality of domains. When the connection of a node is detected by the node connection monitoring unit, a delivery message extractor extracts an advertisement search message stored in the message database. A message delivery unit delivers the advertisement search message extracted by the delivery message extractor.
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Citations
17 Claims
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1. An advertisement search agent module comprising:
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a message acquisition unit for acquiring advertisement search messages including a search message, a service availability advertisement message, and a service unavailability advertisement message broadcast or multicast by a node connected to either one of a plurality of domains; a message database for storing the advertisement search messages acquired by said message acquisition unit; a node connection monitoring unit for detecting a connection of said node to either one of said domains; a delivery message extractor having at least one of a first extracting function to extract only said search message and said service availability advertisement message delivered from the connected node, of said advertisement search messages stored in said message database, and a second extracting function to recognize a node connected to the domain to which said node is connected, and extract only said search message and said service availability advertisement message delivered from the node connected to said domain, when the connection of said node is detected by said node connection monitoring unit; and a message delivery unit having at least one of a first delivery function to deliver said search message and said service availability advertisement message extracted by said first extracting function of said delivery message extractor to the domain to which said node is connected, and a second delivery function, to deliver said search message and said service availability advertisement message extracted by said second extracting function of said delivery message extractor to the node connected to said domain, when the connection of said node is detected by said node connection monitoring unit. - View Dependent Claims (2, 7, 14)
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3. An advertisement search agent module comprising:
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a message acquisition unit for acquiring advertisement search messages including a search message, a service availability advertisement message, and a service unavailability advertisement message broadcast or multicast by a node connected to either one of a plurality of domains; a message database for storing the advertisement search messages acquired by said message acquisition unit; a node connection monitoring unit for detecting a disconnection of said node from either one of said domains; a delivery message extractor having at least one of a first extracting function to extract only said service unavailability advertisement message delivered from the disconnected node, of said advertisement search messages stored in said message database, and a second extracting function to recognize a node connected to the domain from which said node is disconnected, and to extract only said service unavailability advertisement message delivered from the node connected to said domain, when the disconnection of said node is detected by said node connection monitoring unit; and a message delivery unit having at least one of a first delivery function to deliver said service unavailability advertisement message extracted by said first extracting function of said delivery message extractor to the domain from which said node is disconnected, and a second delivery function to deliver said service unavailability advertisement message extracted by said second extracting function of said delivery message extractor to the node disconnected from said domain, when the disconnection of said node is detected by said node connection monitoring unit. - View Dependent Claims (4, 8, 15)
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5. An advertisement search agent module comprising:
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a message acquisition unit for acquiring advertisement search messages including a search message, a service availability advertisement message, and a service unavailability advertisement message broadcast or multicast by a node connected to either one of a plurality of domains; a message database for storing the advertisement search messages acquired by said message acquisition unit; a node connection monitoring unit for detecting a connection of said node to either one of said domains and a disconnection of said node from either one of said domains; a delivery message extractor having at least one of a first extracting function to extract only said search message and said service availability advertisement message delivered from the connected node, of said advertisement search messages stored in said message database, when the connection of said node is detected by said node connection monitoring unit and to extract only said service unavailability advertisement message delivered from the disconnected node, of said advertisement search messages stored in said message database, when the disconnection of said node is detected by said node connection monitoring unit, and a second extracting function to extract only said search message and said service availability advertisement message delivered from the node connected to said domain, of said advertisement search messages stored in said message database, when the connection of said node is detected by said node connection monitoring unit and to extract only said service unavailability advertisement message delivered from the node connected to said domain, of said advertisement search messages stored in said message database, when the disconnection of said node is detected by said node connection monitoring unit; and a message delivery unit having at least one of a first delivery function to deliver said advertisement search message extracted by said first extracting function of said delivery message extractor to the domain to or from which said node is connected or disconnected, and a second delivery function to deliver said advertisement search message extracted by said second extracting function of said delivery message extractor to the node connected to or disconnected from said domain, when the connection or disconnection of said node is detected by said node connection monitoring unit. - View Dependent Claims (6, 9, 16)
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10. An advertisement search agent module comprising:
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a node connection monitoring unit for detecting the connection of a node to and the disconnection of a node from a plurality of domains; a delivery message extractor having either one or both of a first message generation instructing function to specify a domain to which said node is connected or a domain from which said node is disconnected as a domain for which a message is to be generated, and to instruct a message to be generated for said specified domain, and a second message generation instructing function to specify the connected or disconnected node as a node for which a message is to be generated, and to instruct a message to be generated for said specified node, when the connection or disconnection of said node is detected by said node connection monitoring unit; a delivery message generator for generating a service availability advertisement message or a service unavailability advertisement message of said specified node or said specified domain, based on instructions to generate a message from said delivery message extractor; and a message delivery unit having a domain delivery function to delivery a search message generated by said first message generation instructing function of said delivery message extractor to the domain to or from which said node is connected or disconnected, and a node delivery function to deliver a search message generated by said second message generation instructing function of said delivery message extractor to the node connected to said domain, when the connection or disconnection of said node is detected by said node connection monitoring unit. - View Dependent Claims (11, 12, 13, 17)
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Specification