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. 19, 1999
Filed:
May. 28, 1998
Yasukazu Kai, Miyazaki, JP;
Tetsuya Mitoma, Miyazaki, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
A semiconductor memory device having two or more memory blocks is disclosed. The disclosed semiconductor memory device comprises first and second memory cores, first and second output circuits and internal output lines connected to the first and second output circuits, respectively. The first and second output circuits are respectively connected to said first and second memory cores for outputting the data in response to first and second control signals, respectively. The disclosed semiconductor memory device further comprises first and second control signal generating circuits. The first and second control signal generating circuits are connected to the first and second output circuits for generating the first and second control signals to the first and second output circuits. The first and second control signal generating circuits receive first and second read signals having the active state and the inactive state that is switched in response to a read control signal. The first and second control signal generating circuits switch the first and second control signals to the active state with a predetermined time delay when the first and second read signals are switched from the inactive state to the active state, while these immediately switch the first and second control signals to the inactive state when the first and second read signal are switched from the active state to the inactive state.