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:
Nov. 14, 1989
Filed:
Dec. 22, 1987
Applicant:
Inventor:
Takashi Kadono, Osaka, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365227 ; 36518904 ; 365218 ; 365193 ;
Abstract
The memory device of this invention comprises a plurality of banks to which common address/data lines are connected, bank-selecting means for selectively feeding data read/write control signals to each bank, and a plurality of circuits for simultaneously feeding control signals to all banks, so that above constitution allows the memory device to simultaneously feed control signals to all the banks when erasing the entire memory content, thus making it possible for the memory device to effectively erase the entire memory content at an extremely high speed.