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:
Apr. 05, 1994
Filed:
Apr. 23, 1992
Applicant:
Inventors:
Ronald J Bowater, Romsey, GB;
Steven P Larky, New York, NY (US);
Joe C St Clair, Round Rock, TX (US);
Paolo G Sidoli, Romsey, GB;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395275 ; 365233 ;
Abstract
A flexible dynamic memory controller that is operable with dynamic RAMS having a wide range of operating characteristics. These characteristics include different operating speeds for various memory functions, and the usage of memories. In a state machine, a special register is utilized to control where in the sequence of operation, and for how long various delays must be inserted. The delays are dynamically determined by the memory controller in accordance with the type of memory being accessed at a given time and the source of the request.