Fujitsu Corporation

Ikuo Takekawa

Takeshi Saito

Teruhiko Onishi

Tatsumi Kakiuchi

Satoru Chikuma

Eiji Mizunuma

Morihisa Kawai

Hiroko Takekawa

Eiji Muzunuma

Upon receipt of a request to connect to an ad-hoc network from an external communication node, an address assigning unit obtains information on an IP address assigned to the external communication node. The address assigning unit determines whether the IP address is already used by any of communication nodes that are connected to the ad-hoc network based on network management information stored in a storage unit. The address assigning unit generates a new IP address that is used none of the communication nodes when the IP address is already used, and transmits the new IP address to the external communication node. The external communication node is assigned the new IP address, and connects to the ad-hoc network.

Address assignment apparatus, address assignment method, and computer product

A data compression program making a computer perform processing which enables compression of only highly compressible data. First, a transmitter-side device performs compression processing of a portion of data to be compressed. Next, the transmitter-side device compares volumes of the portion of the data before and after the compression processing, and determines whether or not the compression processing is effective. When the data to be compressed is uncompressed data, the volume of the portion of the data is reduced by the compression processing. On the other hand, when the data to be compressed is compressed data, the volume of the portion of the data is not reduced by the compression processing. Therefore, only when it is determined that the compression processing is effective, the transmitter-side device compresses the other portions of the data to be compressed.

Data compression program, data compression method, and data compression device

One connection unit is connected to each radio communication line. There are a plurality of radio communication lines. Radio-field intensity of each radio communication line is monitored. A radio communication line whose radio-field intensity is equal to or higher than a threshold is decided and data communication is established using this radio communication line and corresponding connection unit.

Communication controller and computer product

The present invention relates to the communication between a client and a server. A communication control method has a step for specifying a relay apparatus corresponding to a designated apparatus to be communicated with based on relay definition information which relates information for specifying the apparatus to be communicated with to information for specifying the relay apparatus to relay the communication with the apparatus to be communicated with and a step for establishing a relay connection with the specified relay apparatus.

Communication control apparatus, method, and computer readable storage medium for determining a relay apparatus on information

The present invention operates in a system in which a plurality of workstations are connected via communications lines. When a workstation outputs a message to another workstation, a message output unit identifier is set in an environment variable pertaining to a process which issues a message output request. The process obtains the message output unit identifier set according to the environment variable, and requests the message output workstation to output a message via communications lines. A requested workstation outputs the message on a predetermined unit. Thus, setting a message output unit for an environment variable easily specifies or modifies the message output unit by entering the command, etc. without modifying a program at all.

Growing community of inventors

Kawasaki, Japan

Ikuo Takekawa