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:
Oct. 16, 2001
Filed:
Oct. 27, 1999
Applicant:
Inventor:
Naohiro Kobayashi, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/38 ; H03K 1/9173 ;
U.S. Cl.
CPC ...
G06F 7/38 ; H03K 1/9173 ;
Abstract
For each of a plurality of basic circuit regions arranged in an array, a holding circuit for holding write inhibit information is provided. A region to be used for the IP can arbitrarily be selected from the plurality of basic circuit regions for writing first circuit information. Therefore, after various IPs are written by the first writer, efficient use of the remaining basic circuit region by the user and writing of second circuit information are enabled while preventing access to the circuit information for the IP by the user.