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AssigneeHitachi, Ltd.
InventorsAtsushi Shimizu, Kenichi Yoshida, Takashi Nisikado, Fumio Noda, Osamu Takada
Estimating the term…
In communication between communication terminals utilizing a network, a communication apparatus that receives and interprets service contents information described by a tag-type language or the like and performs processing in accordance with the interpretation thereof is disposed between the communication terminals. The communication apparatus can combine a plurality of processing operations in accordance with the described contents of the information to be implemented and can make various service designs. Further, the communication apparatus is characterized to acquire a program for updating a processing method definition connecting the service contents information and the processing operations by means of the Internet so that the processing method definition of the apparatuses distributed dispersedly can be modified promptly and the whole system can cope with modification of service contents promptly.
At least one communication apparatus connected to any of server-side communication terminals and client-side communication terminals or a communication line in a communication system in which said server-side communication terminals and said client-side communication terminals are connected through the communication line, comprising:
A communication system in which server-side communication terminals, client-side communication terminals and at least one communication apparatus are connected through a communication line, wherein,
A client-side communication terminal used in a communication system in which server-side communication terminals and at least one communication apparatus are connected through a communication line, comprising
Dependencies are inferred from the claim text.
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Arrangements for maintenance, administration or management of data switching networks
Network services: discovery or management thereof, e.g. service location protocol [SLP] or web services
Provisioning of proxy services: adding application-functional data or data for application control, e.g. adding metadata
Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions: in the application layer [OSI layer 7]
Term end not estimated
The present invention relates to processing of received information performed in a communication apparatus provided in a communication path between client terminals and server terminals.
The Internet is utilized to access from a client terminal to a server terminal, so that various services are becoming available. However, when client terminals request services to server terminals directly, the requests from the client terminals are concentrated in a specific server terminal, so that the capacity of communication lines or processing capability of the server terminal that processes the requests is not enough to cope with the requests and it takes a considerable time for the client terminals to receive and enjoy the services. As a countermeasure against this problem, there is a communication method using a proxy apparatus.
The communication method between server terminals and client terminals through the proxy apparatus is described in article 1: “Hypertext Transport Protocol HTTP/1.1”, by Fielding, R., Gettys, J., Mogul, J., Frystyk, H., and Berners-Lee, T., RFC 2068, UC Irvine, Digital Equipment Corporation, M.I.T., pp. 11-13, January, 1997.
FIG. 1 is a block diagram schematically illustrating an example of a configuration utilizing a communication apparatus according an embodiment of the present invention;
FIG. 2 is a concept diagram illustrating a method of selecting a certain information exchanging data format from a plurality of existing information exchanging common data formats and utilizing it;
FIG. 3 is a flow chart showing the preparation process of transmission information utilizing the tag-type language;
Referring now to FIGS. 1 and 2, a basic configuration of an embodiment is described.
(Basic Configuration)
FIG. 1 is a block diagram schematically illustrating a logical configuration of a network system according to a communication apparatus of the embodiment. A server-side communication terminal or its system (hereinafter referred to server-side terminal) 37 and a client-side communication terminal or its system (hereinafter referred to client-side terminal) 39 are connected to each other through various network apparatuses such as router apparatuses and a communication proxy apparatus (hereinafter referred to communication apparatus) 11 by means of a communication path 2. The communication path 2 constitutes a logical communication route for transmitting and receiving data between apparatuses connected through the communication path 2. One communication path 2 may be realized by a plurality of physical communication lines through one or more router apparatuses or conversely a plurality of different communication paths 2 may be realized by one physical communication line.