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:
Mar. 11, 1997
Filed:
Dec. 28, 1994
Applicant:
Inventor:
Hideaki Morita, Nagoya, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364140 ; 364146 ;
Abstract
A programmable controller comprises a user memory in which a plurality of programs each divided to functional blocks or data are stored as files and a user memory management table in which data on storage space, attribute, and capacity of each file is stored. This structure enables newly writing a file from a peripheral device, changing a capacity of each file, and freely accessing each file maintaining continuity of file data.