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:
Mar. 01, 1983
Filed:
Jul. 03, 1980
Dongsung R Kim, Laguna Hills, CA (US);
Burroughs Corporation, Detroit, MI (US);
Abstract
Apparatus which detects and corrects both transient and single bit memory read errors while selectively logging only solid (that is, hardware-related) single bit memory read errors. Each of a plurality of memory modules directly transmits uncorrected memory data to a processor memory control while also providing for automatic local restoring of corrected data back into the memory address which produced the single bit error. The processor memory control provides its own error detection and correction employing syndrome generating and decoding circuitry which detects both multiple and single bit errors. Multiple bit errors are not corrected, but merely brought to the attention of the processor. Single bit errors are corrected, but only those which are found to most likely be solid errors are logged. A solid single bit error is recognized by detecting when two single bit errors having the same memory address occur consecutively.