Method of information display and communication system using the method

• US 20010056468A1
• Filed: 04/19/2001
• Published: 12/27/2001
• Est. Priority Date: 06/27/2000
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Toyoshima, Hisashi, Okayasu, Satoe, Tsuchiyama, Chikako
• Granted Patent: US 7,010,569 B2
• Time in Patent Office: Days
• US Class Current: 709/204
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

A communication system includes a communication management server used by a communication manager and a participant'"'"'s terminal used by a community participant participating in communication. The community management server manages multimedia data that has data about the community participant embedded therein, an element symbolizing the community participant, a data content display control part and a participant personal identification authentication part. The participant'"'"'s terminal includes generation part for generating card-like information as a communication unit. When a plurality of community participants executes communication by using the cards to which the multimedia data are put, they can execute information display of personal information of the community participants, authentication of personal identification, and retrieval/edition of a speech content by using information embedded in the multimedia data.

Claims

1. A method of displaying information comprising the steps of:

generating multimedia data having embedded therein data about a provider of information and information for controlling display of said data; and

controlling display of said data.

4. A method of displaying information according to

claim 1

, wherein said multimedia data has an element symbolizing said provider.

2. A method of displaying information comprising the steps of:

generating multimedia data having embedded therein data about a provider of information and information for confirming said provider;

confirming said provider on the basis of said multimedia data; and

displaying said data.

5. A method of displaying information according to

claim 2

, wherein said multimedia data has an element symbolizing said provider.

3. A method of retrieving information comprising the steps of:

generating multimedia data having an element symbolizing a speaker;

embedding data about said speaker and a speech content as an electronic watermark in said multimedia data; and

retrieving information on the basis of said data embedded.

6. A communication system including at least one client terminal used by a participant participating in communication, a board as a site of communication and at least one management server used by a manager managing multimedia data symbolizing said participant, wherein:

said management server includes means for embedding data about said participant in said multimedia data when receiving a request from said client terminal and means for sending said multimedia data to said client terminal; and

said client terminal includes means for generating card-like information as a communication unit, means for embedding data about said card-like information in said multimedia data sent from said management server, means for putting said multimedia data to said card-like information, means for collating access limit information embedded in said multimedia data with access condition information stored in said client terminal, means for inhibiting said information embedded in said multimedia data from being displayed when the result of said collation is not coincident, and means for displaying information to which display setting is made among said information embedded in said multimedia data when the result of said collation is coincident.

7. A communication system including at least one client terminal used by a participant participating in communication, a board as a site of communication and at least one management server used by a manager managing multimedia data symbolizing said participant, wherein:

said management server includes means for embedding data about said participant and electronic signature of said manager about said data in said multimedia data when receiving a request from said client terminal, and means for putting a public key to said multimedia data and sending them to said client terminal; and

said client terminal includes means for generating card-like information as a communication unit, means for embedding data about said card-like information and electronic signature of said participant in said multimedia data sent from said management server, means for putting a public key for decoding electronic signature of said participant to said multimedia data and then putting said multimedia data to said card-like information, means for collating the public key for electronic signature of said management server attached to said multimedia data with a public key distributed in advance or acquired from said management server, means for collating the public key for electronic signature of said participant put to said multimedia data with a public key distributed in advance or acquired from said management server, means for displaying a notice to the effect that personal identification cannot be confirmed when the result of said collation is not coincident, and means for displaying a notice to the effect that personal identification can be confirmed when the result of said collation is coincident.

8. A communication system including at least one client terminal used by a participant participating in communication, a board as a site of communication and at least one management server used by a manager managing multimedia data symbolizing said participant, wherein:

said management server includes means for embedding data about said participant in said multimedia data when receiving a request from said client terminal, means for sending said multimedia data to said client terminal and means for retrieving said board by using data about said participant embedded in said multimedia data; and

said client terminal includes means for retrieving information on said board by using information embedded in said multimedia data, and means for editing and displaying said retrieval result by using information embedded in said multimedia data.

9. A communication system including at least one communication terminal for receiving information and at least one information transmission station for transmitting information, wherein:

said information transmission station includes means for transmitting multimedia data in which data about a speaker is embedded, has an element symbolizing said speaker and is equipped with display control means of said data, and a speech content of said speaker, to said communication terminal, means for collating access limit information embedded in said multimedia data with access condition information stored in said communication terminal before information is transmitted, and means for transmitting information set and displayed among the content embedded in said multimedia data to said communication terminal when the result of collation is coincident; and

said communication terminal includes means for transmitting said access condition information to said information transmission station and means for receiving information transmitted from said transmission station.