NODE DEVICE, INFORMATION COMMUNICATION SYSTEM, METHOD FOR RETRIEVING CONTENT DATA, AND COMPUTER READABLE MEDIUM
First Claim
1. A node device configured to communicate with a plurality of node devices, wherein content data is stored in at least one node device and the content data is accessible from the plurality of node devices, wherein the node devices are connected via a network as part of an information communication system, the node device comprising:
- a particular obtaining unit configured to obtain search information for searching the content data stored in the node device, the search information comprising publication time information corresponding to a time the content data was published in the network;
a first determination unit configured to apply a predetermined rule to determine whether the search information obtained by the particular obtaining unit is required to be stored in the node device;
a first storage unit configured to store the search information when the first determination unit determines that the search information is required to be stored;
a second determination unit configured to determine whether the search information obtained by the particular obtaining unit is newly published in the network, based on the publication time information retrieved from the obtained search information;
a second storage unit configured to store the search information when the second determination unit determines that the storage information is newly published; and
a search unit configured to search the content data, based on the search information stored in at least one of the first storage unit and the second storage unit.
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Accused Products
Abstract
A node device connected to other node devices has a particular obtaining unit that obtains search information including, a first determination unit that applies a predetermined rule to determine whether the search information obtained by the particular obtaining unit is required to be stored in the node device. The node device has a first storage unit that stores search information when required, and a second determination unit that determines whether the search information obtained by the particular obtaining unit is newly published in the network. A second storage unit stores the search information when the second determination unit determines that the storage information is newly published. A search unit searches the content data, based on the search information stored in at least one of the first storage unit and the second storage unit.
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Citations
14 Claims
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1. A node device configured to communicate with a plurality of node devices, wherein content data is stored in at least one node device and the content data is accessible from the plurality of node devices, wherein the node devices are connected via a network as part of an information communication system, the node device comprising:
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a particular obtaining unit configured to obtain search information for searching the content data stored in the node device, the search information comprising publication time information corresponding to a time the content data was published in the network; a first determination unit configured to apply a predetermined rule to determine whether the search information obtained by the particular obtaining unit is required to be stored in the node device; a first storage unit configured to store the search information when the first determination unit determines that the search information is required to be stored; a second determination unit configured to determine whether the search information obtained by the particular obtaining unit is newly published in the network, based on the publication time information retrieved from the obtained search information; a second storage unit configured to store the search information when the second determination unit determines that the storage information is newly published; and a search unit configured to search the content data, based on the search information stored in at least one of the first storage unit and the second storage unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer program product comprising a computer readable medium having computer readable instructions stored thereon, the computer readable instructions configured to be exected as a computer program for causing a computer to function as a node device that communicates with a plurality of node devices connected via a network as part of an information communication system, and the computer functioning as the node device comprises:
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a particular obtaining unit configured to obtain search information for searching the content data stored in the node device, the search information comprising publication time information corresponding to a time the content data was published in the network; a first determination unit configured to apply a predetermined rule to determine whether the search information obtained by the particular obtaining unit is required to be stored in the node device; a first storage unit configured to store the search information when the first determination unit determines that the search information is required to be stored; a second determination unit configured to determine whether the search information obtained by the particular obtaining unit is newly published in the network, based on the publication time information retrieved from the obtained search information; a second storage unit configured to store the search information when the second determination unit determines that the storage information is newly published; and a search unit configured to search the content data, based on the search information stored in at least one of the first storage unit and the second storage unit.
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13. A computer program product comprising a computer readable medium having computer readable instructions stored thereon, the computer readable instructions configured to be exected by the computer equipped in at least one node device of a plurality of node devices connected via a network in an information communication system in which content data is stored in at least one node device and is accessible from the other of the plurality of node devices, the computer program causing the computer to perform steps comprising:
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a first obtaining step of obtaining search information for searching the content data stored in at least one node device, the search information comprising publication time information corresponding to a time the content data was published; a first determining step of applying a predetermined rule to determine whether the obtained search information is required to be stored in the node device; a first storing step of storing the search information in a first storage unit when the first determination step determines that the obtained search information is required to be stored; a second determining step of determining whether the obtained search information by the particular obtaining step is newly published, based on the publication time information retrieved from the obtained search information; a second storing step of storing the search information in a second storage unit, when the storage information is determined to be newly published at the second determination step; and a searching step of searching the content data, based on the search information stored in at least one of the first storage unit and the second storage unit.
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14. A method for retrieving content data in an information communication system in which a plurality of node devices are connected via a network and communicate with each other, content data being stored in at least one node device and being accessible from the other node devices, the method comprising:
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a first obtaining step of obtaining search information for searching the content data stored in at least one node device, the search information comprising publication time information corresponding to a time the content data was published; a first determining step of applying a predetermined rule to determine whether the obtained search information is required to be stored in the node device; a first storing step of storing the search information in a first storage unit when the first determination step determines that the obtained search information is required to be stored; a second determining step of determining whether the obtained search information by the particular obtaining step is newly published, based on the publication time information retrieved from the obtained search information; a second storing step of storing the search information in a second storage unit, when the storage information is determined to be newly published at the second determination step; and a searching step of searching the content data, based on the search information stored in at least one of the first storage unit and the second storage unit.
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Specification