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. 05, 1980
Filed:
Jun. 13, 1977
Applicant:
Inventors:
Robert H Douglas, Phoenix, AZ (US);
Thomas L Phinney, Phoenix, AZ (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
There is provided, in accordance with the present invention, apparatus comprising a shared random access memory in which is stored requests for access to data in a bulk memory unit. The data being stored in redundant storage areas and the requests stored in the RAM include the address of the redundant data. Means are provided for determining if that data request is already in progress through one of the redundant addresses. The first of the addresses accessed causes the others to be blocked to prevent multiple accessing of the same data. The checking and selection is accomplished by high speed logic circuitry.