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| Coherent sequential PN code extractor |
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| Equalizer comprising first and second equalizing means and trainable in two steps |
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| Network system with TCP/IP protocol spoofing |
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Reserved request type of searched information distribution server
| Details |
Inventors: Hirosawa, Toshio; Ito, Tsutomu; Ishii, Yoshihiro; Hidaka, Minoru;
Assignee: Hitachi, Ltd. (Tokyo, JP); Hitachi Information Network, Ltd. (Tokyo, JP)
Primary Examiner: Follansbee; John
Assistant Examiner: Chang; Jungwon
Attorney, Agent or Firm: Antonelli, Terry, Stout & Kraus, LLP
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. |
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DETAILED DESCRIPTION Under such the circumstances, it is an object of the present invention to provide a method and a system that can reserve a search item beforehand from a client terminal and distribute data searched from an object Internet WWW server according to the reserved search item to the client terminal collectively at fixed intervals of time when searched information is to be obtained from an information providing server connected to the Internet.
It is another object of the present invention to provide a method and a system that can receive searched data collectively from an object Internet WWW server at fixed intervals of time via a communication satellite and distribute received searched data to the request source client terminal.
In order to achieve the above mentioned objects, the reserved request type of information search and distribution system of the present invention is provided with a searching server and a satellite communication server so that the system can process reserved search requests from client terminals.
Receiving a reserved search request from a client terminal, the searching server searches specified data from each WWW server connected to the Internet and saves searched data in a cache file provided in the searching server.
After this, the system transmits collected searched data to the client terminal sequentially.
According to the present invention, collected data is transmitted to the object client terminal, for example, at 12 a.
m.
, at 8 a.
m.
, at noon, at 5 p.
m.
every day, or when the client terminal is connected to the searching server.
Furthermore, the above mentioned searching server is provided with a function for communicating with a network access center of the Internet so that the server can issue reserved search requests from a plurality of client terminals collectively to the network access center, and the network access center operates to search and collect data from WWW servers connected to the Internet.
Such a network access center is convenient to search and collect data from object WWW servers instead of a searching server when those WWW servers exist in a specific relay point or in a specific relay area in a different country in which the searching server does not exist, for example, when the searching server exists in Japan and the object WWW servers and the network access center exist in the United States of America
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Multiplexer-related 
