Reserved request type of searched information distribution server

• US 6,763,393 B2
• Filed: 12/07/2001
• Issued: 07/13/2004
• Est. Priority Date: 02/19/1998
• Status: Expired due to Fees

• Current Assignee: Hitachi Information Networks Limited, Hitachi, Ltd.
• Original Assignee: Hitachi Information Networks Limited, Hitachi, Ltd.
• Inventors: Ito, Tsutomu, Hidaka, Minoru, Ishii, Yoshihiro, Hirosawa, Toshio
• Primary Examiner(s): Follansbee, John
• Assistant Examiner(s): Chang, Jungwon
• Application Number:
  US10/005,357
• Publication Number:
  US 20020042811A1
• Time in Patent Office: 949 Days
• Field of Search: 370/432, 370/338, 709/219, 709/245, 709/235
• US Class Current: 709/235
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques
• CPC Class Codes: G06F 16/953 Querying, e.g. by the use of web search engines

Abstract

The reserved request type of searched information distribution server having a first function unit for issuing a search request to another server connected to the Internet via the Internet so as to collect desired data from a WWW server specified by the search request according to the schedule specified by the search request when receiving request of data searching in a WWW server from a client terminal, and a second function unit for receiving searched data via a communication satellite.

Claims

1. A reserved request type of searched information distribution system, comprising:

a first server connected between a plurality of client terminals and the internet to which a plurality of Web servers are connected; and

a second server configured so as to communicate with said first server via a network and to receive Web content data from a network access server via a communication satellite, said network access server being connected to the internet;

wherein said first server comprises;

means for requesting said network access server to collect Web content data from at least one of said Web servers specified in accordance with a first search request received from one of said client terminals requesting a reserved search of desired data,

a cache file for storing Web content data received from said second server, and

means for distributing Web content data corresponding to said first search request to a client terminal which issued the first search request, said Web content data to be distributed are retrieved from said cache file, and

wherein said second server comprises;

means for receiving Web content data from said network access server via the communication satellite and transferring the received Web content data to said first server via the network.

2. A reserved request type of searched information distribution system, comprising:

a first server having a cache file for storing Web content data and a controller for requesting a network access server, which is connected to Web servers through the Internet, to search and collect desired Web content data designated in a first search request received from one of a plurality of client terminals connected to the first server via a network; and

a second server having means for receiving Web content data from said network access server via a communication path independent of the Internet and for transferring the received Web content data to said first server,

wherein said first server stores the Web content data received from said second server in said cache file in association with a source identifier thereof and said controller selectively distributes the Web content data to one of said client terminals in response to a data request from the client terminal.

3. A reserved type of searched information distribution system according to claim 2, wherein said first server is provided with a management table for registering a relation between an address of the client terminal which issued said first search request and a source identifier of Web content data specified in the first search request, said controller carries out distribution of the Web content data by retrieving Web content data from said cache file based on the source identifier read out from said management table in accordance with an address of the client terminal which issued said data request.

4. A reserved request type of searched information distribution system according to claim 2, said controller of the first server requests said network access server to search and collect the desired Web content data at a timing determined in accordance with a search mode designated in the first search request.