The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 1998
Filed:
Feb. 07, 1995
Koichi Munakata, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of controlling information on data links is provided which allows a user to establish a new link between a data which is being referred to by some other user or task and another data and to update and delete pieces of link information which has been established for the former data. A data layer composed of a plurality of data and a link layer for holding link information which represents link relationships among the plurality of data are disposed separately. In the case that a user refers to a data in the data layer except when link information in the link layer is being referred to or updated, other users are inhibited from modifying the data and are allowed to read the data. Furthermore, other users are allowed to read and modify the link information in the link layer which corresponds to the data being referred to.