Matsushita Electric Industrial Co., Ltd.

Satoshi Terasaki

Yasuhide Horiuchi

Toru Kubo

Kouji Hatano

The invention provides a system where additional services using other sites connected over a network are made available when a content is delivered via a network. According to the invention, when user A receives delivery of a content from a content delivery service server () by using a terminal (), predetermined information is transmitted from the server () to user A or a community server (). With this information, the preferential use of community sites or additional use of services is made available to user A. The preferential use is for example the preferential use of a community site bulletin board. The additional use is re-delivery of delivered contents by using community sites.

Content distributing system, content distributing service server, and community site server

The object of the present invention is to provide A transmitter-receiver enables a user to send a mail in an optimal mode even to a portable terminal with lower functional capability without a need for awareness of a plurality of mail service providers. The transmitter-receiver notifies of arrival of the mail at an optimal communication cost depending on the importance of the mail, and unifies a plurality of mail spools. The unified mail spools are controlled by a spool integration unit. The transmitter-receiver according to the present invention comprises a terminal response unit for inquiring capability of a user terminal and a data form converting unit, and the mail is sent in an optimal form to the user terminal. In case the content of the mail cannot be read perfectly, it is designed in such manner that the mail is not deleted from the spool, and arrival of the mail is notified to the user at an optimal communication cost depending on the importance of the mail and position information of the user.

Transmitter-receiver for electronic mail that provides convenience to a user receiving mail services from various mail service providers at different terminals and different places

An information acquisition proxy system which conducts mediation for information acquisition between an information accessing terminal and an information distributing server. The system comprises a user authentication section for identifying a user and an information acquisition history managing section for retaining and managing a demand for information acquisition from the information accessing terminal, with the information acquisition history managing section retaining and managing demands in units of users. Also included in the system is an additional information managing section for managing additional information for the demand said information acquisition history managing section manages. With this arrangement, an additional information is added by one user when the user has access to specific information, and hence the user can refer to the additional information at the later information access using a different information accessing terminal, thus allowing effective information access work based upon the previous access situation.

Growing community of inventors

Oomiya, Japan

Satoshi Terasaki