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:
Dec. 11, 1984
Filed:
May. 10, 1982
Arthur F Cochcroft, Jr, Lexington, SC (US);
James M Lockwood, West Columbia, SC (US);
NCR Corporation, Dayton, OH (US);
Abstract
A memory addressing system includes an addressable memory provided with error checking and correction (ECC) circuits which include output latches adapted to latch corrected data read from the memory. An applied memory address is compared in a comparator with a previous memory address stored in an address latch and if a match is detected, a match signal is effective to inhibit the occurrence of the next memory cycle and to activate a decoder coupled to the output of the ECC circuits to cause transfer to the system bus of selected data from the ECC latches. If no match is detected, a memory cycle is initiated to access the desired data in the memory. A high-speed memory operation is thus achieved utilizing simple circuitry.