Hitachi, Ltd.

Tomoko Kimura

Hiroshi Koike

Nobuya Okayama

Miyoko Namioka

Hideo Ohata

Shigeru Yoneda

Tetsuya Masuishi

Kiyotaka Kiyasu

Ikuyo Ozu

A cyber mall system has a contents sales apparatus for selling digital contents, a contents purchasing apparatus, and a network for connecting these components. When digital contents are registered into the contents sales apparatus, digital contents personal using conditions are generated on the basis of digital contents using conditions and are provided to a customer. If the digital contents are again purchased after the delivery of the digital contents fails, as long as the digital contents personal using conditions provided at the time of purchase are valid, the digital contents are again delivered without again collecting a digital contents value.

Contents sales method and cyber mall system using such method and storage medium storing therein its contents sales program

A cyber mall system has a contents sales apparatus for selling digital contents, a contents purchasing apparatus, and a network for connecting those components. When the digital contents are registered into the contents sales apparatus, in the case where the digital contents are sold by the contents sales apparatus for defining digital contents using conditions constructed by a server side access control to the digital contents which is executed on the contents sales apparatus side and a physical act restriction to control an access to the digital contents which is executed on the contents purchasing apparatus side that purchased the digital contents, digital contents personal using conditions are generated on the basis of the digital contents using conditions and are given to a customer. When the digital contents are again purchased if the delivery of the digital contents fails, so long as the digital contents personal using conditions given at the time of purchase are valid, the digital contents are again delivered without again collecting a digital contents value.

In a multi-dimensional data management method in a database management system, a collection of members constituting each dimension is grouped and page indexes constituted by entries corresponding to combinations of member groups of each dimension are assigned to a memory unit. A set of member groups corresponding to input data is determined from a set of members of dimensions specifying the input data and an entry of page index corresponding to the set of member groups is obtained. When a page number is not registered in said obtained entry, a page is assigned in the memory unit and the page number of the page is registered in the entry. The input data and identification information of the data are paired to be stored in the page having the page number registered in the entry.

Method for processing multi-dimensional data

Growing community of inventors

Tokyo, Japan

Tomoko Kimura