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:
Feb. 15, 1994
Filed:
Jul. 18, 1991
Applicant:
Inventor:
Naoyuki Kai, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518904 ; 36523004 ;
Abstract
A stack memory for high-speed operation comprises a RAM for storing data and a stack pointer for holding an address of the PUSH data. The POP data are always stored in an address smaller by '1' than the address for storing the PUSH data. According to this stack memory, both reading the POP data and storing PUSH data is simultaneously executed, then the one of them can be validated. Thus, it becomes possible to execute the access to the RAM before the data process mode is decided.