Hyper text reading system

Details Hyper text reading system Hyper text reading system

1998-06-25

2001-06-12

Alam, Hosain T. (Department: 2172)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000, C707S793000, C707S793000, C707S793000, C707S793000, C709S241000, C345S215000

Reexamination Certificate

active

06247013

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a hyper text reading system for providing and reading hyper text on a network.
2. Related Background Art
Generally, a technique for the purpose of adding a detailed description or related information for a document or wordings of a document, which is linked to another document or data is known. Such a linked document or data is called a hyper text. As a link destination from the hyper text, in addition to a hyper text and an ordinary text, multimedia data such as image, audio, video, or the like can also be designated.
Various WWW browsers are known as means for presenting (displaying) information of a hyper text on WWW (World Wide Web) of the internet.
Those WWW browsers have a function to present (display) the hyper text selected by the user from WWW servers existing on the internet. The WWW browser usually has a function to present (display) still image data besides a text document and the like.
A spot linked to another document or data existing in the hyper text is called an anchor. When the user clicks the anchor by a mouse button or the like, the WWW browser has a function to download a document or data on the link destination side showing the anchor from the relevant WWW server and to present (display) it.
If the data on the link destination side is video data or audio data and the WWW browser itself does not have a function to present them, a method whereby the WWW browser activates an external application in correspondence to a format of the data on the link destination side and the external application presents the information on the link destination side is used. Such an external application is called a helper application or, simply, a helper.
A method called a plug-in such that an extended function of the WWW browser is read out from an external memory device such as a hard disk or the like in correspondence to the data format on the link destination side and the data on the link destination side is displayed in the WWW browser is also known.
FIG. 7
is a diagram showing an example in which the WWW browser operates in cooperation with the helper. In the diagram, a site
701
of a contents provider to be connected exists on the internet
703
. A WWW server (computer)
704
and a contents server (computer)
705
are provided in the site
701
, respectively. There is considered a case where hyper text information accumulated in the WWW server
704
and video information accumulated in the contents server
705
are displayed by a computer
702
of an information reader through the internet
703
.
The contents server which is used here denotes a server in which multimedia data such as video information or audio information has been accumulated. There is also a case where the contents server operates on the same computer as that of the WWW server.
When the computer
702
of the information reader and the WWW server
704
existing in the site
701
of the contents provider are connected via the internet, in step S
1
, the information reader requests the hyper text information existing in the WWW server
704
by operating a WWW browser
706
.
In step S
2
, the WWW server
704
transmits the hyper text information to the computer
702
of the information reader. The computer
702
of the information reader who received the hyper text information displays a hyper text
708
by the WWW browser
706
.
An anchor
709
which is linked to the video information accumulated in the contents server
705
is included in the hyper text
708
.
In step S
3
, when the information reader clicks the anchor
709
, the WWW browser
706
knows that the link destination of the anchor
709
is video data.
In this instance, if the WWW browser
706
itself does not have a function to display the video image, the WWW browser
706
automatically activates a helper application
707
in step S
4
and notifies the helper application
707
of address (address of the contents server
705
) information on the link destination side of the anchor
709
.
In step S
5
, the helper application
707
is subsequently connected to the computer of the contents server
705
in an address on the link destination side notified from the WWW browser
706
in step S
4
and transmits a video data request command.
In step S
6
, when the video data request command is received, the contents server
705
transmits the video data to the helper application
707
. The helper application
707
which received the video data presents a contents information
710
in a readable format.
Even in the case where the WWW browser
706
itself does not have the function to present the contents information which is provided by the contents provider, according to the procedure as mentioned above, the helper application
707
is activated and the data can be downloaded and presented.
The foregoing conventional system, however, has the following problems.
That is, as shown in
FIG. 8
, there is considered a case where an anchor
713
which is linked to the contents information which is provided by the contents provider exists in a hyper text
712
downloaded from a WWW server (computer)
711
a
existing in a WWW site
711
of a third party which is not concerned with the site
701
of the contents provider.
When the information reader clicks the anchor
713
, the WWW browser
706
automatically activates the helper application
707
. The helper application
707
downloads the contents data from the contents server
705
of the contents provider and displays the contents information
710
as if the third party provided the information. There is a case of the occurrence of a disadvantage of the contents provider such that the information reader can read the contents data without seeing the hyper text in which a name of the information provider, a product name, remarks in use, and the like have been written which the contents provider inherently wants to present or the like.
SUMMARY OF THE INVENTION
The invention is made in consideration of the problems which the foregoing conventional technique has and it is an object of the invention to provide a hyper text reading system which can protect the right of a contents provider and assure an advantage.
To accomplish the above object, according to an aspect of the invention, there is provided a hyper text reading system in a database system of a client/server type constructed by a server and clients,
wherein the server comprises
hyper text providing means for providing a hyper text and
multimedia data providing means for providing multimedia data,
the client comprises
hyper text receiving means for receiving a desired hyper text of the user,
hyper text display means for displaying the hyper text received by the hyper text receiving means,
multimedia data receiving means for receiving the multimedia data from the server when an anchor in the hyper text displayed by the hyper text display means is selected by the user, and
multimedia data output means for generating the multimedia data received by the multimedia data receiving means, and
the multimedia data receiving means of the client comprises
discriminating means for discriminating whether a link source of the anchor selected by the user in the hyper text displayed by the hyper text display means is proper or not and
limiting means for limiting the reception of the multimedia data from the server on the basis of a discrimination result by the discriminating means.
To accomplish the above object, according to another aspect of the invention, there is provided a hyper text reading system in a database system of a client/server type comprising a plurality of servers and clients,
wherein a first server has hyper text providing means for providing a hyper text,
a second server has multimedia data providing means for providing multimedia data,
the client comprises
hyper text receiving means for receiving a desired hyper text of the user,
hyper text display means for displaying the hyper text received by the hyper text receiving means,
multimedia data receiving means for receivi

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