Information presentation terminal and method
First Claim
1. An information presentation terminal which is connected via communication means to a server storing electronic data and having a function for, upon reception of a transmission request including an identification name and a date and time for specifying electronic data, comparing the date and time included in the transmission request with a prepare data and time of electronic data corresponding to the identification name stored in said server, when the date and time included in the transmission request are older, sending a response including a difference between the electronic data designated by the date and time and latest electronic data, said terminal comprising:
- a large-capacity storage medium in which the electronic data stored in said server and an identification name are permanently stored;
a second storage medium from/in which the electronic data and the identification name can be read/rewritten;
identification name obtaining means for obtaining an identification name of electronic data to be presented;
information requesting means for, when the identification name obtained by the identification name obtaining means exists in said large-capacity storage medium or the second storage medium, sending a transmission request including the identification name and the prepared date and time to said server;
information obtaining means forreading electronic data corresponding to the identification name from said large-capacity storage medium or the second storage medium; and
applying the difference to the electronic data to obtain the latest electronic data when a response corresponding to the transmission request is received from said server, and the difference of the electronic data is included in the response; and
information presentation means for presenting the electronic data obtained by said information obtaining means.
1 Assignment
0 Petitions
Accused Products
Abstract
An information presentation terminal which is connected to a server storing electronic data via a network to present electronic data stored in the server is characterized by including a CD-ROM on which at least part of the electronic data stored in the server is recorded, and a CD-ROM reading unit for the CD-ROM wherein, when designated electronic data exists in the CD-ROM, the designated electronic data is read by the CD-ROM reading unit, or when it does not exist, the designated electronic data is obtained from the server via the network to present the obtained electronic data.
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Citations
13 Claims
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1. An information presentation terminal which is connected via communication means to a server storing electronic data and having a function for, upon reception of a transmission request including an identification name and a date and time for specifying electronic data, comparing the date and time included in the transmission request with a prepare data and time of electronic data corresponding to the identification name stored in said server, when the date and time included in the transmission request are older, sending a response including a difference between the electronic data designated by the date and time and latest electronic data, said terminal comprising:
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a large-capacity storage medium in which the electronic data stored in said server and an identification name are permanently stored; a second storage medium from/in which the electronic data and the identification name can be read/rewritten; identification name obtaining means for obtaining an identification name of electronic data to be presented; information requesting means for, when the identification name obtained by the identification name obtaining means exists in said large-capacity storage medium or the second storage medium, sending a transmission request including the identification name and the prepared date and time to said server; information obtaining means for reading electronic data corresponding to the identification name from said large-capacity storage medium or the second storage medium; and applying the difference to the electronic data to obtain the latest electronic data when a response corresponding to the transmission request is received from said server, and the difference of the electronic data is included in the response; and information presentation means for presenting the electronic data obtained by said information obtaining means. - View Dependent Claims (2, 3)
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4. An information presentation system comprising a server storing electronic data, and an information presentation terminal for presenting the electronic data stored in said server, said server and said information presentation terminal being connected via communication means;
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said server having means for, upon reception of a transmission request including an identification name and a date and time for specifying electronic data, comparing the date and time included in the transmission request with a prepared date and time of electronic data corresponding to the identification name stored in said server, when the date and time included in the transmission request are older, sending a response including a difference between the electronic data designated by the date and time and latest electronic data, and said information presentation terminal having a large-capacity storage medium in which the electronic data stored in said server and an identification name are permanently stored; a second storage medium from/in which the electronic data and the identification name can be read/written; identification name obtaining means for obtaining an identification name of electronic data to be presented; information requesting means for, when the identification name obtained by the identification name obtaining means exists in said large-capacity storage medium or the second storage medium, sending a transmission request including the identification name and the prepared date and time to said server; information obtaining means for reading electronic data corresponding to the identification name from said large-capacity storage medium or the second storage medium, and applying the difference to the electronic data to obtain the latest electronic data when a response corresponding to the transmission request is received from said server, and the difference of the electronic data is included in the response; and information presentation means for presenting the electronic data obtained by said information obtaining means. - View Dependent Claims (5, 6, 7, 8, 9)
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10. A method of obtaining electronic data corresponding to a given identification name which is usable in an information processing unit that is connected via communication means to a server storing electronic data and having a function of, upon reception of a transmission request including an identification name for specifying electronic data, sending a response including electronic data corresponding to the identification name, and a function of, upon reception of a transmission request including an identification name and a date and time for specifying electronic data, sending a response including a difference between the electronic data designated by the date and time and latest electronic data, or the latest electronic data itself, and has a large-capacity storage medium in which the electronic data stored in said server, an identification name, and a prepared date and time are stored, and has a second storage medium from/in which the electronic data and the identification name can be read/written, the method comprising the steps of:
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searching said large-capacity storage medium and said second storage medium for the identification name; sending, to said server, a transmission request including the identification name and a prepared date and time when the identification name is determined in the search step to exist in said large-capacity storage medium or said second storage medium; sending a transmission request including the identification name to said server when the identification name is determined in the search step not to exist in said large-capacity storage medium and said second storage medium; receiving a response from said server corresponding to the transmission request; determining whether the received response includes a difference of the electronic data corresponding to the identification name, or latest electronic data itself; and reading the electronic data corresponding to the identification name from said large-capacity storage medium or said second storage medium when the received response is determined in the response determination step to include the difference of the electronic data corresponding to the identification name. - View Dependent Claims (11, 12, 13)
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Specification