Fujitsu Corporation

Koyoh Corporation, Ltd.

Masayuki Koga

Shinichi Ishigaki

Akihisa Erami

Yoko Koga

A cement paste containing microbial cells which has a sustained effect and an excellent function of purifying water. This cement paste contains a mixture ofandcells at a mixing ratio by mass of 0.1 to 50:0.1 to 50:0.1 to 50.

[object Object]

A transmitting sequence changing/restoring unit receives, from an ATM control unit, ATM cells stored with the transmitting target information in a segmented state. The transmitting sequence changing/restoring unit groups the cells of this cell string by fours, adds the synchronous cell to the head each group, and changes the sequence thereof. The respective cells are transferred in the changed sequence in sections ranging from the transmitting sequence changing/restoring unit of the transmitting-side ATM node to the unit of the receiving-side ATM node. Accordingly, even if the ATM cell string is intercepted by the third part in this section, this third party cannot reproduce the original transmitting target information. The transmitting sequence changing/restoring unit of the receiving-side ATM node is capable of recognizing where the groups of the received cell string are delimited based on the synchronous cells and restoring the sequence of the ATM cells within the thus recognized group, whereby the transmitting target information can be reproduced.

System and device for preventing wiretap

A communication terminal in an information offering system used through an ATM network providing, for example, multicast connections. The information offering system is equipped with an information offering unit and a network unit accommodating a plurality of communication terminals including the communication terminal through lines and made to offer desired information transmitted from the information offering unit through a virtual path and virtual channel set peculiarly to the information to the communication terminal. The communication terminal comprises an identifying information inserting section for inserting information for identifying one of the communication terminals being the sender as terminal identifying information into data to be transmitted to the information offering unit side and a transmitting section for transmitting the data undergoing the insertion of the terminal identifying information in the identifying information inserting section through the virtual path and the virtual channel. Thus, the service offering side can recognize and identify the service receiving terminal side without using the connection of an ATM virtual channel different from the ATM virtual channel being in the multicast connection.

Communication terminal and network unit in information offering system, terminal identifying information setting method, information offering system, and fixed-length cell transmitting and receiving unit in information communication system

Growing community of inventors

Fukuoka, Japan

Masayuki Koga