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:
Jul. 30, 1985
Filed:
Dec. 15, 1982
Applicant:
Inventors:
Fuminari Tanaka, Kawasaki, JP;
Yoshihiro Iwamoto, Kawasaki, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365227 ; 365226 ; 365230 ;
Abstract
A dynamic read only memory comprises a plurality of ROM blocks and a control circuit composed of a plurality of MOSFETs respectively connected to the column lines. The control circuit keeps the data from the ROM block not containing a specified memory cell at a discharged level.