Hitachi, Ltd.

Hiroaki Kawamichi

Katsumi Kawano

Shigeki Hirasawa

Shigetoshi Sameshima

Hiromitsu Kato

Junji Nakata

A distribution system having plural elements including one or more computation devices holds distributed common data without distinction between master data and duplicate data upon entrance or withdrawal of the elements. Coincidence among the common data is obtained by majority rule. In the majority rule, a significance level is defined for each common data, and the significance level is utilized as a weight in majority rule for coincidence among the common data.

Coincidence method for distribution system

A guidance system which may include: a position direction obtaining unit which obtains a current position and moving direction of an operation device; a destination information obtaining unit which obtains destination information; a route information generating unit which generates route information to the destination from the current position by use of map information; an output device management unit which manages an installation position of the output device; an output device selecting unit which selects one output device from the plurality of output devices, on the basis of information of the current position, moving direction and installation position of the output device; a selected output device presenting unit which presents an information that specifies the selected output device to the operation device; and an information display instructing unit which displays the generated route information displayed on the selected output device in accordance with the information to be specified.

Guidance information providing system

In a distributed system having a plurality of equipment that are interconnected over transmission medium and that include one or more arithmetic units, any of the plurality of equipment notifies a person to be notified about a function of the any of the equipment in accordance with an adaptive communication method in which the notification method is determined by the following steps. A first step that any of the plurality of equipment obtains environment information of that equipment and another equipment if necessary and a second step that any of the equipment determines the notification method depending on the environment information obtained by the first step and a contents of information concerning the function of any of the equipment.

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Yokohama, Japan

Hiroaki Kawamichi