Fujitsu Corporation

Tadaaki Tanaka

Takashi Kaneko

Keita Kobayashi

Masaaki Nagasaka

Tadahiro Ohta

Takashi Ueno

Yayoi Itoh

Kazutoshi Kobayashi

Shouichi Kimura

Fumiyasu Ige

Norishige Ichihashi

Hironobu Oshika

Hiroki Takayama

The present invention relates to a communication system, and the invention specifically provides a contents server that appropriately stores media contents from group users in a PoC Service and a conference service. The contents server includes: a recording unit that records media information from plural users in a communicatable state participating in a predetermined group, for each group; a detecting unit that detects a communicatable state or an uncommunicatable state of each participating user, at each predetermined time; and a deleting unit that deletes confirmed media information already recorded in the recording unit, upon detecting that all the participating users are in the communicatable state.

Contents server and contents server system

It is determined whether a call-connection condition set to a call-connection device is a first call-connection state or a second call-connection state. When the determination result shows that the first call-connection state is set, a call is connected from an originating terminal to a destination terminal. When the determination result shows that the second call-connection state is set, the call is connected from the originating terminal to the destination terminal and conversation-termination processing is performed without waiting for a disconnection request transmitted from the originating terminal or the destination terminal.

Telephone-line-connection method

The present invention relates to a portable wireless terminal, and in particular, a portable wireless terminal such as a cellular phone, etc., and its security system that can reliably prevent, by remote control, improper use of the portable wireless terminal by a third party when it is lost or stolen. The portable wireless terminal that uploads backup data to a center by remote control from the center via a wireless network includes: a data access control section-that, in response to an instructions from the center, prohibits access to the backup data retained by a portable wireless terminal or deletes the backup data; an encryption section-that encrypts the backup data by using a public key notified from the center or a public key owned by the portable wireless terminal itself in response to instructions from the center; and a data transmission section-to-that transmits the backup data split into a plurality of data fragments on a plurality of communication paths to the center according to transmission priority of the backup data that is notified from the center or owned by the portable wireless terminal itself.

Portable wireless terminal and its security system

A method for connecting equipment in a network system, enabling prevention of the spread of viruses throughout the network resulting from connection to the network of a server, client, PC, or other equipment infected with a virus, in which the network configuration is separated into an operation network and a virus check network using VLAN (Virtual Local Area Network) functions, and at the time of connection of equipment, a virus check is performed in the virus check network, and equipment confirmed by the virus check to be safe is accommodated in the operation network. When safety cannot be confirmed through the virus check, the equipment is isolated from the operation network and from the virus network.

Method of connection of equipment in a network and network system using same

In a first aspect of the invention, the load on a central management/control apparatus is monitored to determine a control rate appropriate to the load, and inquiries from an inquiry execution apparatus or an exchange are controlled by rejecting inquiries in proportion to the control rate. In enforcing the control, a control process is selected, in accordance with the load, from among: a control process 1 in which the inquiry execution apparatus is notified when an inquiry has been rejected; a control process 2 in which inquires are rejected without issuing a notification; a control process 3 in which the inquiry execution apparatus is instructed to control inquiries; and a control process 4 in which at least two of these control processes are combined. In a second aspect of the invention, the occurrence of an overload condition is prevented by rejecting all inquiries arising from specific calls.

Growing community of inventors

Kawasaki, Japan

Tadaaki Tanaka